# fixture.  Otherwise link against libsqlite3.la.  (This distinction is
# necessary because the test fixture requires non-API symbols which are
# hidden when the library is built via the amalgamation).
#
TESTFIXTURE_FLAGS  = -DTCLSH=1 -DSQLITE_TEST=1 -DSQLITE_CRASH_TEST=1
TESTFIXTURE_FLAGS += -DSQLITE_SERVER=1 -DSQLITE_PRIVATE="" -DSQLITE_CORE 
TESTFIXTURE_FLAGS += -DBUILD_sqlite


TESTFIXTURE_SRC0 = $(TESTSRC2) libsqlite3.la
TESTFIXTURE_SRC1 = sqlite3.c
TESTFIXTURE_SRC = $(TESTSRC) $(TOP)/src/tclsqlite.c
TESTFIXTURE_SRC += $(TESTFIXTURE_SRC$(USE_AMALGAMATION))

testfixture$(TEXE):	$(TESTFIXTURE_SRC)

# fixture.  Otherwise link against libsqlite3.la.  (This distinction is
# necessary because the test fixture requires non-API symbols which are
# hidden when the library is built via the amalgamation).
#
TESTFIXTURE_FLAGS  = -DTCLSH=1 -DSQLITE_TEST=1 -DSQLITE_CRASH_TEST=1
TESTFIXTURE_FLAGS += -DSQLITE_SERVER=1 -DSQLITE_PRIVATE="" -DSQLITE_CORE 
TESTFIXTURE_FLAGS += -DBUILD_sqlite
TESTFIXTURE_FLAGS += -DSQLITE_SERIES_CONSTRAINT_VERIFY=1

TESTFIXTURE_SRC0 = $(TESTSRC2) libsqlite3.la
TESTFIXTURE_SRC1 = sqlite3.c
TESTFIXTURE_SRC = $(TESTSRC) $(TOP)/src/tclsqlite.c
TESTFIXTURE_SRC += $(TESTFIXTURE_SRC$(USE_AMALGAMATION))

testfixture$(TEXE):	$(TESTFIXTURE_SRC)

# fixture.  Otherwise link against libsqlite3.lib.  (This distinction is
# necessary because the test fixture requires non-API symbols which are
# hidden when the library is built via the amalgamation).
#
TESTFIXTURE_FLAGS = -DTCLSH=1 -DSQLITE_TEST=1 -DSQLITE_CRASH_TEST=1
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERVER=1 -DSQLITE_PRIVATE=""
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_CORE $(NO_WARN)


TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2)
TESTFIXTURE_SRC1 = $(TESTEXT) $(SQLITE3C)
!IF $(USE_AMALGAMATION)==0
TESTFIXTURE_SRC = $(TESTSRC) $(TOP)\src\tclsqlite.c $(TESTFIXTURE_SRC0)
!ELSE
TESTFIXTURE_SRC = $(TESTSRC) $(TOP)\src\tclsqlite.c $(TESTFIXTURE_SRC1)

# fixture.  Otherwise link against libsqlite3.lib.  (This distinction is
# necessary because the test fixture requires non-API symbols which are
# hidden when the library is built via the amalgamation).
#
TESTFIXTURE_FLAGS = -DTCLSH=1 -DSQLITE_TEST=1 -DSQLITE_CRASH_TEST=1
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERVER=1 -DSQLITE_PRIVATE=""
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_CORE $(NO_WARN)
TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERIES_CONSTRAINT_VERIFY=1

TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2)
TESTFIXTURE_SRC1 = $(TESTEXT) $(SQLITE3C)
!IF $(USE_AMALGAMATION)==0
TESTFIXTURE_SRC = $(TESTSRC) $(TOP)\src\tclsqlite.c $(TESTFIXTURE_SRC0)
!ELSE
TESTFIXTURE_SRC = $(TESTSRC) $(TOP)\src\tclsqlite.c $(TESTFIXTURE_SRC1)

    p->rc = rc;
    p->nRead++;
  }

  assert( (pRet==0)==(p->rc!=SQLITE_OK) );
  return pRet;
}


/*
** Release a reference to data record returned by an earlier call to
** fts5DataRead().
*/
static void fts5DataRelease(Fts5Data *pData){
  sqlite3_free(pData);
................................................................................
  int bEndOfPage = 0;

  assert( p->rc==SQLITE_OK );

  iPgidx = szLeaf;
  iPgidx += fts5GetVarint32(&a[iPgidx], iTermOff);
  iOff = iTermOff;





  while( 1 ){

    /* Figure out how many new bytes are in this term */
    fts5FastGetVarint32(a, iOff, nNew);
    if( nKeep<nMatch ){
      goto search_failed;
................................................................................
    pNew->nRef = 1;
    pNew->nWriteCounter = pStruct->nWriteCounter;
    pLvl = &pNew->aLevel[pStruct->nLevel];
    pLvl->aSeg = (Fts5StructureSegment*)sqlite3Fts5MallocZero(&p->rc, nByte);
    if( pLvl->aSeg ){
      int iLvl, iSeg;
      int iSegOut = 0;
      for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){



        for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
          pLvl->aSeg[iSegOut] = pStruct->aLevel[iLvl].aSeg[iSeg];
          iSegOut++;
        }
      }
      pNew->nSegment = pLvl->nSeg = nSeg;
    }else{

    p->rc = rc;
    p->nRead++;
  }

  assert( (pRet==0)==(p->rc!=SQLITE_OK) );
  return pRet;
}


/*
** Release a reference to data record returned by an earlier call to
** fts5DataRead().
*/
static void fts5DataRelease(Fts5Data *pData){
  sqlite3_free(pData);
................................................................................
  int bEndOfPage = 0;

  assert( p->rc==SQLITE_OK );

  iPgidx = szLeaf;
  iPgidx += fts5GetVarint32(&a[iPgidx], iTermOff);
  iOff = iTermOff;
  if( iOff>n ){
    p->rc = FTS5_CORRUPT;
    return;
  }

  while( 1 ){

    /* Figure out how many new bytes are in this term */
    fts5FastGetVarint32(a, iOff, nNew);
    if( nKeep<nMatch ){
      goto search_failed;
................................................................................
    pNew->nRef = 1;
    pNew->nWriteCounter = pStruct->nWriteCounter;
    pLvl = &pNew->aLevel[pStruct->nLevel];
    pLvl->aSeg = (Fts5StructureSegment*)sqlite3Fts5MallocZero(&p->rc, nByte);
    if( pLvl->aSeg ){
      int iLvl, iSeg;
      int iSegOut = 0;
      /* Iterate through all segments, from oldest to newest. Add them to
      ** the new Fts5Level object so that pLvl->aSeg[0] is the oldest
      ** segment in the data structure.  */
      for(iLvl=pStruct->nLevel-1; iLvl>=0; iLvl--){
        for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
          pLvl->aSeg[iSegOut] = pStruct->aLevel[iLvl].aSeg[iSeg];
          iSegOut++;
        }
      }
      pNew->nSegment = pLvl->nSeg = nSeg;
    }else{

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. .. test]
}
source $testdir/tester.tcl

ifcapable !fts5 {

  finish_test


  return


}

catch { 
  sqlite3_fts5_may_be_corrupt 0 
  reset_db
}

# If SQLITE_ENABLE_FTS5 is not defined, skip this test.
ifcapable !fts5 {
  finish_test
  return
}

proc fts5_test_poslist {cmd} {
  set res [list]
  for {set i 0} {$i < [$cmd xInstCount]} {incr i} {
    lappend res [string map {{ } .} [$cmd xInst $i]]
  }
  set res
}

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. .. test]
}
source $testdir/tester.tcl

ifcapable !fts5 {
  proc return_if_no_fts5 {} {
    finish_test
    return -code return
  }
  return
} else {
  proc return_if_no_fts5 {} {}
}

catch { 
  sqlite3_fts5_may_be_corrupt 0 
  reset_db
}







proc fts5_test_poslist {cmd} {
  set res [list]
  for {set i 0} {$i < [$cmd xInstCount]} {incr i} {
    lappend res [string map {{ } .} [$cmd xInst $i]]
  }
  set res
}

#*************************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is testing the FTS5 module.
#

source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5bigtok


proc rndterm {} {
  set L [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
  set l [lindex $L [expr int(rand() * [llength $L])]]
  string repeat $l [expr int(rand() * 5) + 60]
}

#*************************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is testing the FTS5 module.
#

source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5bigtok
return_if_no_fts5

proc rndterm {} {
  set L [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
  set l [lindex $L [expr int(rand() * [llength $L])]]
  string repeat $l [expr int(rand() * 5) + 60]
}

#
#***********************************************************************
#
# Test that focus on incremental merges of segments.
#

source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5merge


proc dump_structure {} {
  db eval {SELECT fts5_decode(id, block) AS t FROM t1_data WHERE id=10} {
    foreach lvl [lrange $t 1 end] {
      set seg [string repeat . [expr [llength $lvl]-2]]
      puts "[lrange $lvl 0 1] $seg"
    }
  }
}

foreach_detail_mode $testprefix {

if {[detail_is_none]==0} continue

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  INSERT INTO t1(t1, rank) VALUES('crisismerge', 2);
  INSERT INTO t1 VALUES('1 2 3 4');
}

#
#***********************************************************************
#
# Test that focus on incremental merges of segments.
#

source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5merge2
return_if_no_fts5

proc dump_structure {} {
  db eval {SELECT fts5_decode(id, block) AS t FROM t1_data WHERE id=10} {
    foreach lvl [lrange $t 1 end] {
      set seg [string repeat . [expr [llength $lvl]-2]]
      puts "[lrange $lvl 0 1] $seg"
    }
  }
}

foreach_detail_mode $testprefix {



do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x, detail=%DETAIL%);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  INSERT INTO t1(t1, rank) VALUES('crisismerge', 2);
  INSERT INTO t1 VALUES('1 2 3 4');
}

  CREATE VIRTUAL TABLE x1 USING fts5(a,b,c);
}

do_catchsql_test 19.2 {
  SELECT * FROM x1 WHERE x1 MATCH 'c0 AND (c1 AND (c2 AND (c3 AND (c4 AND (c5 AND (c6 AND (c7 AND (c8 AND (c9 AND (c10 AND (c11 AND (c12 AND (c13 AND (c14 AND (c15 AND (c16 AND (c17 AND (c18 AND (c19 AND (c20 AND (c21 AND (c22 AND (c23 AND (c24 AND (c25 AND (c26 AND (c27 AND (c28 AND (c29 AND (c30 AND (c31 AND (c32 AND (c33 AND (c34 AND (c35 AND (c36 AND (c37 AND (c38 AND (c39 AND (c40 AND (c41 AND (c42 AND (c43 AND (c44 AND (c45 AND (c46 AND (c47 AND (c48 AND (c49 AND (c50 AND (c51 AND (c52 AND (c53 AND (c54 AND (c55 AND (c56 AND (c57 AND (c58 AND (c59 AND (c60 AND (c61 AND (c62 AND (c63 AND (c64 AND (c65 AND (c66 AND (c67 AND (c68 AND (c69 AND (c70 AND (c71 AND (c72 AND (c73 AND (c74 AND (c75 AND (c76 AND (c77 AND (c78 AND (c79 AND (c80 AND (c81 AND (c82 AND (c83 AND (c84 AND (c85 AND (c86 AND (c87 AND (c88 AND (c89 AND (c90 AND (c91 AND (c92 AND (c93 AND (c94 AND (c95 AND (c96 AND (c97 AND (c98 AND (c99 AND (c100 AND (c101 AND (c102 AND (c103 AND (c104 AND (c105 AND (c106 AND (c107 AND (c108 AND (c109 AND (c110 AND (c111 AND (c112 AND (c113 AND (c114 AND (c115 AND (c116 AND (c117 AND (c118 AND (c119 AND (c120 AND (c121 AND (c122 AND (c123 AND (c124 AND (c125 AND (c126 AND (c127 AND (c128 AND (c129 AND (c130 AND (c131 AND (c132 AND (c133 AND (c134 AND (c135 AND (c136 AND (c137 AND (c138 AND (c139 AND (c140 AND (c141 AND (c142 AND (c143 AND (c144 AND (c145 AND (c146 AND (c147 AND (c148 AND (c149 AND (c150 AND (c151 AND (c152 AND (c153 AND (c154 AND (c155 AND (c156 AND (c157 AND (c158 AND (c159 AND (c160 AND (c161 AND (c162 AND (c163 AND (c164 AND (c165 AND (c166 AND (c167 AND (c168 AND (c169 AND (c170 AND (c171 AND (c172 AND (c173 AND (c174 AND (c175 AND (c176 AND (c177 AND (c178 AND (c179 AND (c180 AND (c181 AND (c182 AND (c183 AND (c184 AND (c185 AND (c186 AND (c187 AND (c188 AND (c189 AND (c190 AND (c191 AND (c192 AND (c193 AND (c194 AND (c195 AND (c196 AND (c197 AND (c198 AND (c199 AND c200)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
} {1 {fts5: parser stack overflow}}









finish_test

  CREATE VIRTUAL TABLE x1 USING fts5(a,b,c);
}

do_catchsql_test 19.2 {
  SELECT * FROM x1 WHERE x1 MATCH 'c0 AND (c1 AND (c2 AND (c3 AND (c4 AND (c5 AND (c6 AND (c7 AND (c8 AND (c9 AND (c10 AND (c11 AND (c12 AND (c13 AND (c14 AND (c15 AND (c16 AND (c17 AND (c18 AND (c19 AND (c20 AND (c21 AND (c22 AND (c23 AND (c24 AND (c25 AND (c26 AND (c27 AND (c28 AND (c29 AND (c30 AND (c31 AND (c32 AND (c33 AND (c34 AND (c35 AND (c36 AND (c37 AND (c38 AND (c39 AND (c40 AND (c41 AND (c42 AND (c43 AND (c44 AND (c45 AND (c46 AND (c47 AND (c48 AND (c49 AND (c50 AND (c51 AND (c52 AND (c53 AND (c54 AND (c55 AND (c56 AND (c57 AND (c58 AND (c59 AND (c60 AND (c61 AND (c62 AND (c63 AND (c64 AND (c65 AND (c66 AND (c67 AND (c68 AND (c69 AND (c70 AND (c71 AND (c72 AND (c73 AND (c74 AND (c75 AND (c76 AND (c77 AND (c78 AND (c79 AND (c80 AND (c81 AND (c82 AND (c83 AND (c84 AND (c85 AND (c86 AND (c87 AND (c88 AND (c89 AND (c90 AND (c91 AND (c92 AND (c93 AND (c94 AND (c95 AND (c96 AND (c97 AND (c98 AND (c99 AND (c100 AND (c101 AND (c102 AND (c103 AND (c104 AND (c105 AND (c106 AND (c107 AND (c108 AND (c109 AND (c110 AND (c111 AND (c112 AND (c113 AND (c114 AND (c115 AND (c116 AND (c117 AND (c118 AND (c119 AND (c120 AND (c121 AND (c122 AND (c123 AND (c124 AND (c125 AND (c126 AND (c127 AND (c128 AND (c129 AND (c130 AND (c131 AND (c132 AND (c133 AND (c134 AND (c135 AND (c136 AND (c137 AND (c138 AND (c139 AND (c140 AND (c141 AND (c142 AND (c143 AND (c144 AND (c145 AND (c146 AND (c147 AND (c148 AND (c149 AND (c150 AND (c151 AND (c152 AND (c153 AND (c154 AND (c155 AND (c156 AND (c157 AND (c158 AND (c159 AND (c160 AND (c161 AND (c162 AND (c163 AND (c164 AND (c165 AND (c166 AND (c167 AND (c168 AND (c169 AND (c170 AND (c171 AND (c172 AND (c173 AND (c174 AND (c175 AND (c176 AND (c177 AND (c178 AND (c179 AND (c180 AND (c181 AND (c182 AND (c183 AND (c184 AND (c185 AND (c186 AND (c187 AND (c188 AND (c189 AND (c190 AND (c191 AND (c192 AND (c193 AND (c194 AND (c195 AND (c196 AND (c197 AND (c198 AND (c199 AND c200)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
} {1 {fts5: parser stack overflow}}

#-------------------------------------------------------------------------
reset_db
breakpoint
do_execsql_test 20.0 {
  CREATE VIRTUAL TABLE x1 USING fts5(x);
  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
  INSERT INTO x1(rowid, x) VALUES(11111, 'onetwothree');
}
do_test 20.1 {
  for {set i 1} {$i <= 200} {incr i} {
    execsql { INSERT INTO x1(rowid, x) VALUES($i, 'one two three'); }
  }
  execsql { INSERT INTO x1(x1) VALUES('optimize'); }
  execsql { DELETE FROM x1 WHERE rowid = 4; }
} {}
do_execsql_test 20.2 {
  INSERT INTO x1(x1) VALUES('optimize');
  INSERT INTO x1(x1) VALUES('integrity-check');
} {}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 20.0 {
  CREATE VIRTUAL TABLE x1 USING fts5(x);
  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
  INSERT INTO x1(rowid, x) VALUES(11111, 'onetwothree');
}
do_test 20.1 {
  for {set i 1} {$i <= 200} {incr i} {
    execsql { INSERT INTO x1(rowid, x) VALUES($i, 'one two three'); }
  }
  execsql { INSERT INTO x1(x1) VALUES('optimize'); }
  execsql { DELETE FROM x1 WHERE rowid = 4; }
} {}
do_execsql_test 20.2 {
  INSERT INTO x1(x1) VALUES('optimize');
  INSERT INTO x1(x1) VALUES('integrity-check');
} {}

finish_test

  if( pCur->isDesc ){
    return pCur->iValue < pCur->mnValue;
  }else{
    return pCur->iValue > pCur->mxValue;
  }
}









/*
** This method is called to "rewind" the series_cursor object back
** to the first row of output.  This method is always called at least
** once prior to any call to seriesColumn() or seriesRowid() or 
** seriesEof().
**
** The query plan selected by seriesBestIndex is passed in the idxNum
................................................................................
        stepIdx = i;
        idxNum |= 4;
        break;
    }
  }
  if( startIdx>=0 ){
    pIdxInfo->aConstraintUsage[startIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[startIdx].omit = 1;
  }
  if( stopIdx>=0 ){
    pIdxInfo->aConstraintUsage[stopIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[stopIdx].omit = 1;
  }
  if( stepIdx>=0 ){
    pIdxInfo->aConstraintUsage[stepIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[stepIdx].omit = 1;
  }
  if( (idxNum & 3)==3 ){
    /* Both start= and stop= boundaries are available.  This is the 
    ** the preferred case */
    pIdxInfo->estimatedCost = (double)1;
    pIdxInfo->estimatedRows = 1000;
    if( pIdxInfo->nOrderBy==1 ){
      if( pIdxInfo->aOrderBy[0].desc ) idxNum |= 8;
      pIdxInfo->orderByConsumed = 1;
    }
  }else{
    /* If either boundary is missing, we have to generate a huge span

  if( pCur->isDesc ){
    return pCur->iValue < pCur->mnValue;
  }else{
    return pCur->iValue > pCur->mxValue;
  }
}

/* True to cause run-time checking of the start=, stop=, and/or step= 
** parameters.  The only reason to do this is for testing the
** constraint checking logic for virtual tables in the SQLite core.
*/
#ifndef SQLITE_SERIES_CONSTRAINT_VERIFY
# define SQLITE_SERIES_CONSTRAINT_VERIFY 0
#endif

/*
** This method is called to "rewind" the series_cursor object back
** to the first row of output.  This method is always called at least
** once prior to any call to seriesColumn() or seriesRowid() or 
** seriesEof().
**
** The query plan selected by seriesBestIndex is passed in the idxNum
................................................................................
        stepIdx = i;
        idxNum |= 4;
        break;
    }
  }
  if( startIdx>=0 ){
    pIdxInfo->aConstraintUsage[startIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[startIdx].omit= !SQLITE_SERIES_CONSTRAINT_VERIFY;
  }
  if( stopIdx>=0 ){
    pIdxInfo->aConstraintUsage[stopIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[stopIdx].omit = !SQLITE_SERIES_CONSTRAINT_VERIFY;
  }
  if( stepIdx>=0 ){
    pIdxInfo->aConstraintUsage[stepIdx].argvIndex = ++nArg;
    pIdxInfo->aConstraintUsage[stepIdx].omit = !SQLITE_SERIES_CONSTRAINT_VERIFY;
  }
  if( (idxNum & 3)==3 ){
    /* Both start= and stop= boundaries are available.  This is the 
    ** the preferred case */
    pIdxInfo->estimatedCost = (double)(2 - ((idxNum&4)!=0));
    pIdxInfo->estimatedRows = 1000;
    if( pIdxInfo->nOrderBy==1 ){
      if( pIdxInfo->aOrderBy[0].desc ) idxNum |= 8;
      pIdxInfo->orderByConsumed = 1;
    }
  }else{
    /* If either boundary is missing, we have to generate a huge span

/* End transliterate
******************************************************************************
******************************************************************************
** Begin spellfix1 virtual table.
*/

/* Maximum length of a phonehash used for querying the shadow table */
#define SPELLFIX_MX_HASH  8

/* Maximum number of hash strings to examine per query */
#define SPELLFIX_MX_RUN   1

typedef struct spellfix1_vtab spellfix1_vtab;
typedef struct spellfix1_cursor spellfix1_cursor;

/* End transliterate
******************************************************************************
******************************************************************************
** Begin spellfix1 virtual table.
*/

/* Maximum length of a phonehash used for querying the shadow table */
#define SPELLFIX_MX_HASH  32

/* Maximum number of hash strings to examine per query */
#define SPELLFIX_MX_RUN   1

typedef struct spellfix1_vtab spellfix1_vtab;
typedef struct spellfix1_cursor spellfix1_cursor;

  $(TOP)/src/test6.c \
  $(TOP)/src/test7.c \
  $(TOP)/src/test8.c \
  $(TOP)/src/test9.c \
  $(TOP)/src/test_autoext.c \
  $(TOP)/src/test_async.c \
  $(TOP)/src/test_backup.c \

  $(TOP)/src/test_blob.c \
  $(TOP)/src/test_btree.c \
  $(TOP)/src/test_config.c \
  $(TOP)/src/test_demovfs.c \
  $(TOP)/src/test_devsym.c \
  $(TOP)/src/test_fs.c \
  $(TOP)/src/test_func.c \
................................................................................

sqlite3_analyzer$(EXE): sqlite3_analyzer.c
	$(TCCX) $(TCL_FLAGS) sqlite3_analyzer.c -o $@ $(LIBTCL) $(THREADLIB) 

# Rules to build the 'testfixture' application.
#
TESTFIXTURE_FLAGS  = -DSQLITE_TEST=1 -DSQLITE_CRASH_TEST=1
TESTFIXTURE_FLAGS += -DSQLITE_SERVER=1 -DSQLITE_PRIVATE="" -DSQLITE_CORE 


testfixture$(EXE): $(TESTSRC2) libsqlite3.a $(TESTSRC) $(TOP)/src/tclsqlite.c
	$(TCCX) $(TCL_FLAGS) -DTCLSH=1 $(TESTFIXTURE_FLAGS)                  \
		$(TESTSRC) $(TESTSRC2) $(TOP)/src/tclsqlite.c                \
		-o testfixture$(EXE) $(LIBTCL) libsqlite3.a $(THREADLIB)

amalgamation-testfixture$(EXE): sqlite3.c $(TESTSRC) $(TOP)/src/tclsqlite.c

  $(TOP)/src/test6.c \
  $(TOP)/src/test7.c \
  $(TOP)/src/test8.c \
  $(TOP)/src/test9.c \
  $(TOP)/src/test_autoext.c \
  $(TOP)/src/test_async.c \
  $(TOP)/src/test_backup.c \
  $(TOP)/src/test_bestindex.c \
  $(TOP)/src/test_blob.c \
  $(TOP)/src/test_btree.c \
  $(TOP)/src/test_config.c \
  $(TOP)/src/test_demovfs.c \
  $(TOP)/src/test_devsym.c \
  $(TOP)/src/test_fs.c \
  $(TOP)/src/test_func.c \
................................................................................

sqlite3_analyzer$(EXE): sqlite3_analyzer.c
	$(TCCX) $(TCL_FLAGS) sqlite3_analyzer.c -o $@ $(LIBTCL) $(THREADLIB) 

# Rules to build the 'testfixture' application.
#
TESTFIXTURE_FLAGS  = -DSQLITE_TEST=1 -DSQLITE_CRASH_TEST=1
TESTFIXTURE_FLAGS += -DSQLITE_SERVER=1 -DSQLITE_PRIVATE="" -DSQLITE_CORE
TESTFIXTURE_FLAGS += -DSQLITE_SERIES_CONSTRAINT_VERIFY=1

testfixture$(EXE): $(TESTSRC2) libsqlite3.a $(TESTSRC) $(TOP)/src/tclsqlite.c
	$(TCCX) $(TCL_FLAGS) -DTCLSH=1 $(TESTFIXTURE_FLAGS)                  \
		$(TESTSRC) $(TESTSRC2) $(TOP)/src/tclsqlite.c                \
		-o testfixture$(EXE) $(LIBTCL) libsqlite3.a $(THREADLIB)

amalgamation-testfixture$(EXE): sqlite3.c $(TESTSRC) $(TOP)/src/tclsqlite.c

  }
#endif

  /* If the default value for the new column was specified with a 
  ** literal NULL, then set pDflt to 0. This simplifies checking
  ** for an SQL NULL default below.
  */

  if( pDflt && pDflt->op==TK_NULL ){
    pDflt = 0;
  }

  /* Check that the new column is not specified as PRIMARY KEY or UNIQUE.
  ** If there is a NOT NULL constraint, then the default value for the
  ** column must not be NULL.
  */
................................................................................
    goto exit_begin_add_column;
  }
  memcpy(pNew->aCol, pTab->aCol, sizeof(Column)*pNew->nCol);
  for(i=0; i<pNew->nCol; i++){
    Column *pCol = &pNew->aCol[i];
    pCol->zName = sqlite3DbStrDup(db, pCol->zName);
    pCol->zColl = 0;
    pCol->zType = 0;
    pCol->pDflt = 0;
    pCol->zDflt = 0;
  }
  pNew->pSchema = db->aDb[iDb].pSchema;
  pNew->addColOffset = pTab->addColOffset;
  pNew->nRef = 1;

  /* Begin a transaction and increment the schema cookie.  */
  sqlite3BeginWriteOperation(pParse, 0, iDb);

  }
#endif

  /* If the default value for the new column was specified with a 
  ** literal NULL, then set pDflt to 0. This simplifies checking
  ** for an SQL NULL default below.
  */
  assert( pDflt==0 || pDflt->op==TK_SPAN );
  if( pDflt && pDflt->pLeft->op==TK_NULL ){
    pDflt = 0;
  }

  /* Check that the new column is not specified as PRIMARY KEY or UNIQUE.
  ** If there is a NOT NULL constraint, then the default value for the
  ** column must not be NULL.
  */
................................................................................
    goto exit_begin_add_column;
  }
  memcpy(pNew->aCol, pTab->aCol, sizeof(Column)*pNew->nCol);
  for(i=0; i<pNew->nCol; i++){
    Column *pCol = &pNew->aCol[i];
    pCol->zName = sqlite3DbStrDup(db, pCol->zName);
    pCol->zColl = 0;

    pCol->pDflt = 0;

  }
  pNew->pSchema = db->aDb[iDb].pSchema;
  pNew->addColOffset = pTab->addColOffset;
  pNew->nRef = 1;

  /* Begin a transaction and increment the schema cookie.  */
  sqlite3BeginWriteOperation(pParse, 0, iDb);

  int i;
  Column *pCol;
  assert( pTable!=0 );
  if( (pCol = pTable->aCol)!=0 ){
    for(i=0; i<pTable->nCol; i++, pCol++){
      sqlite3DbFree(db, pCol->zName);
      sqlite3ExprDelete(db, pCol->pDflt);
      sqlite3DbFree(db, pCol->zDflt);
      sqlite3DbFree(db, pCol->zType);
      sqlite3DbFree(db, pCol->zColl);
    }
    sqlite3DbFree(db, pTable->aCol);
  }
}

/*
................................................................................
** Add a new column to the table currently being constructed.
**
** The parser calls this routine once for each column declaration
** in a CREATE TABLE statement.  sqlite3StartTable() gets called
** first to get things going.  Then this routine is called for each
** column.
*/
void sqlite3AddColumn(Parse *pParse, Token *pName){
  Table *p;
  int i;
  char *z;

  Column *pCol;
  sqlite3 *db = pParse->db;
  if( (p = pParse->pNewTable)==0 ) return;
#if SQLITE_MAX_COLUMN
  if( p->nCol+1>db->aLimit[SQLITE_LIMIT_COLUMN] ){
    sqlite3ErrorMsg(pParse, "too many columns on %s", p->zName);
    return;
  }
#endif
  z = sqlite3NameFromToken(db, pName);
  if( z==0 ) return;






  for(i=0; i<p->nCol; i++){
    if( sqlite3_stricmp(z, p->aCol[i].zName)==0 ){
      sqlite3ErrorMsg(pParse, "duplicate column name: %s", z);
      sqlite3DbFree(db, z);
      return;
    }
  }
................................................................................
    p->aCol = aNew;
  }
  pCol = &p->aCol[p->nCol];
  memset(pCol, 0, sizeof(p->aCol[0]));
  pCol->zName = z;
  sqlite3ColumnPropertiesFromName(p, pCol);
 

  /* If there is no type specified, columns have the default affinity
  ** 'BLOB'. If there is a type specified, then sqlite3AddColumnType() will
  ** be called next to set pCol->affinity correctly.
  */
  pCol->affinity = SQLITE_AFF_BLOB;
  pCol->szEst = 1;



  p->nCol++;

}

/*
** This routine is called by the parser while in the middle of
** parsing a CREATE TABLE statement.  A "NOT NULL" constraint has
** been seen on a column.  This routine sets the notNull flag on
** the column currently under construction.
................................................................................
        *pszEst = 5;   /* BLOB, TEXT, CLOB -> r=5  (approx 20 bytes)*/
      }
    }
  }
  return aff;
}

/*
** This routine is called by the parser while in the middle of
** parsing a CREATE TABLE statement.  The pFirst token is the first
** token in the sequence of tokens that describe the type of the
** column currently under construction.   pLast is the last token
** in the sequence.  Use this information to construct a string
** that contains the typename of the column and store that string
** in zType.
*/ 
void sqlite3AddColumnType(Parse *pParse, Token *pType){
  Table *p;
  Column *pCol;

  p = pParse->pNewTable;
  if( p==0 || NEVER(p->nCol<1) ) return;
  pCol = &p->aCol[p->nCol-1];
  assert( pCol->zType==0 || CORRUPT_DB );
  sqlite3DbFree(pParse->db, pCol->zType);
  pCol->zType = sqlite3NameFromToken(pParse->db, pType);
  pCol->affinity = sqlite3AffinityType(pCol->zType, &pCol->szEst);
}

/*
** The expression is the default value for the most recently added column
** of the table currently under construction.
**
** Default value expressions must be constant.  Raise an exception if this
** is not the case.
**
................................................................................
      sqlite3ErrorMsg(pParse, "default value of column [%s] is not constant",
          pCol->zName);
    }else{
      /* A copy of pExpr is used instead of the original, as pExpr contains
      ** tokens that point to volatile memory. The 'span' of the expression
      ** is required by pragma table_info.
      */

      sqlite3ExprDelete(db, pCol->pDflt);
      pCol->pDflt = sqlite3ExprDup(db, pSpan->pExpr, EXPRDUP_REDUCE);
      sqlite3DbFree(db, pCol->zDflt);

      pCol->zDflt = sqlite3DbStrNDup(db, (char*)pSpan->zStart,
                                     (int)(pSpan->zEnd - pSpan->zStart));




    }
  }
  sqlite3ExprDelete(db, pSpan->pExpr);
}

/*
** Backwards Compatibility Hack:
................................................................................
  Parse *pParse,    /* Parsing context */
  ExprList *pList,  /* List of field names to be indexed */
  int onError,      /* What to do with a uniqueness conflict */
  int autoInc,      /* True if the AUTOINCREMENT keyword is present */
  int sortOrder     /* SQLITE_SO_ASC or SQLITE_SO_DESC */
){
  Table *pTab = pParse->pNewTable;
  char *zType = 0;
  int iCol = -1, i;
  int nTerm;
  if( pTab==0 || IN_DECLARE_VTAB ) goto primary_key_exit;
  if( pTab->tabFlags & TF_HasPrimaryKey ){
    sqlite3ErrorMsg(pParse, 
      "table \"%s\" has more than one primary key", pTab->zName);
    goto primary_key_exit;
  }
  pTab->tabFlags |= TF_HasPrimaryKey;
  if( pList==0 ){
    iCol = pTab->nCol - 1;
    pTab->aCol[iCol].colFlags |= COLFLAG_PRIMKEY;
    zType = pTab->aCol[iCol].zType;
    nTerm = 1;
  }else{
    nTerm = pList->nExpr;
    for(i=0; i<nTerm; i++){
      Expr *pCExpr = sqlite3ExprSkipCollate(pList->a[i].pExpr);
      assert( pCExpr!=0 );
      sqlite3StringToId(pCExpr);
      if( pCExpr->op==TK_ID ){
        const char *zCName = pCExpr->u.zToken;
        for(iCol=0; iCol<pTab->nCol; iCol++){
          if( sqlite3StrICmp(zCName, pTab->aCol[iCol].zName)==0 ){
            pTab->aCol[iCol].colFlags |= COLFLAG_PRIMKEY;
            zType = pTab->aCol[iCol].zType;
            break;
          }
        }
      }
    }
  }
  if( nTerm==1
   && zType && sqlite3StrICmp(zType, "INTEGER")==0

   && sortOrder!=SQLITE_SO_DESC
  ){
    pTab->iPKey = iCol;
    pTab->keyConf = (u8)onError;
    assert( autoInc==0 || autoInc==1 );
    pTab->tabFlags |= autoInc*TF_Autoincrement;
    if( pList ) pParse->iPkSortOrder = pList->a[0].sortOrder;

  int i;
  Column *pCol;
  assert( pTable!=0 );
  if( (pCol = pTable->aCol)!=0 ){
    for(i=0; i<pTable->nCol; i++, pCol++){
      sqlite3DbFree(db, pCol->zName);
      sqlite3ExprDelete(db, pCol->pDflt);


      sqlite3DbFree(db, pCol->zColl);
    }
    sqlite3DbFree(db, pTable->aCol);
  }
}

/*
................................................................................
** Add a new column to the table currently being constructed.
**
** The parser calls this routine once for each column declaration
** in a CREATE TABLE statement.  sqlite3StartTable() gets called
** first to get things going.  Then this routine is called for each
** column.
*/
void sqlite3AddColumn(Parse *pParse, Token *pName, Token *pType){
  Table *p;
  int i;
  char *z;
  char *zType;
  Column *pCol;
  sqlite3 *db = pParse->db;
  if( (p = pParse->pNewTable)==0 ) return;
#if SQLITE_MAX_COLUMN
  if( p->nCol+1>db->aLimit[SQLITE_LIMIT_COLUMN] ){
    sqlite3ErrorMsg(pParse, "too many columns on %s", p->zName);
    return;
  }
#endif
  z = sqlite3DbMallocRaw(db, pName->n + pType->n + 2);
  if( z==0 ) return;
  memcpy(z, pName->z, pName->n);
  z[pName->n] = 0;
  sqlite3Dequote(z);
  zType = z + sqlite3Strlen30(z) + 1;
  memcpy(zType, pType->z, pType->n);
  zType[pType->n] = 0;
  for(i=0; i<p->nCol; i++){
    if( sqlite3_stricmp(z, p->aCol[i].zName)==0 ){
      sqlite3ErrorMsg(pParse, "duplicate column name: %s", z);
      sqlite3DbFree(db, z);
      return;
    }
  }
................................................................................
    p->aCol = aNew;
  }
  pCol = &p->aCol[p->nCol];
  memset(pCol, 0, sizeof(p->aCol[0]));
  pCol->zName = z;
  sqlite3ColumnPropertiesFromName(p, pCol);
 
  if( pType->n==0 ){
    /* If there is no type specified, columns have the default affinity

    ** 'BLOB'. */

    pCol->affinity = SQLITE_AFF_BLOB;
    pCol->szEst = 1;
  }else{
    pCol->affinity = sqlite3AffinityType(zType, &pCol->szEst);
  }
  p->nCol++;
  pParse->constraintName.n = 0;
}

/*
** This routine is called by the parser while in the middle of
** parsing a CREATE TABLE statement.  A "NOT NULL" constraint has
** been seen on a column.  This routine sets the notNull flag on
** the column currently under construction.
................................................................................
        *pszEst = 5;   /* BLOB, TEXT, CLOB -> r=5  (approx 20 bytes)*/
      }
    }
  }
  return aff;
}























/*
** The expression is the default value for the most recently added column
** of the table currently under construction.
**
** Default value expressions must be constant.  Raise an exception if this
** is not the case.
**
................................................................................
      sqlite3ErrorMsg(pParse, "default value of column [%s] is not constant",
          pCol->zName);
    }else{
      /* A copy of pExpr is used instead of the original, as pExpr contains
      ** tokens that point to volatile memory. The 'span' of the expression
      ** is required by pragma table_info.
      */
      Expr x;
      sqlite3ExprDelete(db, pCol->pDflt);

      memset(&x, 0, sizeof(x));
      x.op = TK_SPAN;
      x.u.zToken = sqlite3DbStrNDup(db, (char*)pSpan->zStart,
                                    (int)(pSpan->zEnd - pSpan->zStart));
      x.pLeft = pSpan->pExpr;
      x.flags = EP_Skip;
      pCol->pDflt = sqlite3ExprDup(db, &x, EXPRDUP_REDUCE);
      sqlite3DbFree(db, x.u.zToken);
    }
  }
  sqlite3ExprDelete(db, pSpan->pExpr);
}

/*
** Backwards Compatibility Hack:
................................................................................
  Parse *pParse,    /* Parsing context */
  ExprList *pList,  /* List of field names to be indexed */
  int onError,      /* What to do with a uniqueness conflict */
  int autoInc,      /* True if the AUTOINCREMENT keyword is present */
  int sortOrder     /* SQLITE_SO_ASC or SQLITE_SO_DESC */
){
  Table *pTab = pParse->pNewTable;
  const char *zName = 0;
  int iCol = -1, i;
  int nTerm;
  if( pTab==0 || IN_DECLARE_VTAB ) goto primary_key_exit;
  if( pTab->tabFlags & TF_HasPrimaryKey ){
    sqlite3ErrorMsg(pParse, 
      "table \"%s\" has more than one primary key", pTab->zName);
    goto primary_key_exit;
  }
  pTab->tabFlags |= TF_HasPrimaryKey;
  if( pList==0 ){
    iCol = pTab->nCol - 1;
    pTab->aCol[iCol].colFlags |= COLFLAG_PRIMKEY;
    zName = pTab->aCol[iCol].zName;
    nTerm = 1;
  }else{
    nTerm = pList->nExpr;
    for(i=0; i<nTerm; i++){
      Expr *pCExpr = sqlite3ExprSkipCollate(pList->a[i].pExpr);
      assert( pCExpr!=0 );
      sqlite3StringToId(pCExpr);
      if( pCExpr->op==TK_ID ){
        const char *zCName = pCExpr->u.zToken;
        for(iCol=0; iCol<pTab->nCol; iCol++){
          if( sqlite3StrICmp(zCName, pTab->aCol[iCol].zName)==0 ){
            pTab->aCol[iCol].colFlags |= COLFLAG_PRIMKEY;
            zName = pTab->aCol[iCol].zName;
            break;
          }
        }
      }
    }
  }
  if( nTerm==1
   && zName
   && sqlite3StrICmp(sqlite3StrNext(zName), "INTEGER")==0
   && sortOrder!=SQLITE_SO_DESC
  ){
    pTab->iPKey = iCol;
    pTab->keyConf = (u8)onError;
    assert( autoInc==0 || autoInc==1 );
    pTab->tabFlags |= autoInc*TF_Autoincrement;
    if( pList ) pParse->iPkSortOrder = pList->a[0].sortOrder;

      codeCompare(pParse, pLeft, pRight, OP_Le, r1, r2, r4, SQLITE_STOREP2);
      VdbeCoverage(v);
      sqlite3VdbeAddOp3(v, OP_And, r3, r4, target);
      sqlite3ReleaseTempReg(pParse, r3);
      sqlite3ReleaseTempReg(pParse, r4);
      break;
    }

    case TK_COLLATE: 
    case TK_UPLUS: {
      inReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft, target);
      break;
    }

    case TK_TRIGGER: {

      codeCompare(pParse, pLeft, pRight, OP_Le, r1, r2, r4, SQLITE_STOREP2);
      VdbeCoverage(v);
      sqlite3VdbeAddOp3(v, OP_And, r3, r4, target);
      sqlite3ReleaseTempReg(pParse, r3);
      sqlite3ReleaseTempReg(pParse, r4);
      break;
    }
    case TK_SPAN:
    case TK_COLLATE: 
    case TK_UPLUS: {
      inReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft, target);
      break;
    }

    case TK_TRIGGER: {

    if( sqlite3_stricmp(pDestCol->zColl, pSrcCol->zColl)!=0 ){
      return 0;    /* Collating sequence must be the same on all columns */
    }
    if( pDestCol->notNull && !pSrcCol->notNull ){
      return 0;    /* tab2 must be NOT NULL if tab1 is */
    }
    /* Default values for second and subsequent columns need to match. */
    if( i>0
     && ((pDestCol->zDflt==0)!=(pSrcCol->zDflt==0) 


         || (pDestCol->zDflt && strcmp(pDestCol->zDflt, pSrcCol->zDflt)!=0))

    ){
      return 0;    /* Default values must be the same for all columns */

    }
  }
  for(pDestIdx=pDest->pIndex; pDestIdx; pDestIdx=pDestIdx->pNext){
    if( IsUniqueIndex(pDestIdx) ){
      destHasUniqueIdx = 1;
    }
    for(pSrcIdx=pSrc->pIndex; pSrcIdx; pSrcIdx=pSrcIdx->pNext){

    if( sqlite3_stricmp(pDestCol->zColl, pSrcCol->zColl)!=0 ){
      return 0;    /* Collating sequence must be the same on all columns */
    }
    if( pDestCol->notNull && !pSrcCol->notNull ){
      return 0;    /* tab2 must be NOT NULL if tab1 is */
    }
    /* Default values for second and subsequent columns need to match. */
    if( i>0 ){
      assert( pDestCol->pDflt==0 || pDestCol->pDflt->op==TK_SPAN );
      assert( pSrcCol->pDflt==0 || pSrcCol->pDflt->op==TK_SPAN );
      if( (pDestCol->pDflt==0)!=(pSrcCol->pDflt==0) 
       || (pDestCol->pDflt && strcmp(pDestCol->pDflt->u.zToken,
                                       pSrcCol->pDflt->u.zToken)!=0)
      ){
        return 0;    /* Default values must be the same for all columns */
      }
    }
  }
  for(pDestIdx=pDest->pIndex; pDestIdx; pDestIdx=pDestIdx->pNext){
    if( IsUniqueIndex(pDestIdx) ){
      destHasUniqueIdx = 1;
    }
    for(pSrcIdx=pSrc->pIndex; pSrcIdx; pSrcIdx=pSrcIdx->pNext){

  **     1. The specified column name was rowid", "oid" or "_rowid_" 
  **        and there is no explicitly declared IPK column. 
  **
  **     2. The table is not a view and the column name identified an 
  **        explicitly declared column. Copy meta information from *pCol.
  */ 
  if( pCol ){

    zDataType = pCol->zType;
    zCollSeq = pCol->zColl;
    notnull = pCol->notNull!=0;
    primarykey  = (pCol->colFlags & COLFLAG_PRIMKEY)!=0;
    autoinc = pTab->iPKey==iCol && (pTab->tabFlags & TF_Autoincrement)!=0;
  }else{
    zDataType = "INTEGER";
    primarykey = 1;

  **     1. The specified column name was rowid", "oid" or "_rowid_" 
  **        and there is no explicitly declared IPK column. 
  **
  **     2. The table is not a view and the column name identified an 
  **        explicitly declared column. Copy meta information from *pCol.
  */ 
  if( pCol ){
    zDataType = sqlite3StrNext(pCol->zName);
    if( zDataType[0]==0 ) zDataType = 0;
    zCollSeq = pCol->zColl;
    notnull = pCol->notNull!=0;
    primarykey  = (pCol->colFlags & COLFLAG_PRIMKEY)!=0;
    autoinc = pTab->iPKey==iCol && (pTab->tabFlags & TF_Autoincrement)!=0;
  }else{
    zDataType = "INTEGER";
    primarykey = 1;

  if( X.n==5 && sqlite3_strnicmp(X.z,"rowid",5)==0 ){
    A = TF_WithoutRowid | TF_NoVisibleRowid;
  }else{
    A = 0;
    sqlite3ErrorMsg(pParse, "unknown table option: %.*s", X.n, X.z);
  }
}
columnlist ::= columnlist COMMA column.
columnlist ::= column.

// A "column" is a complete description of a single column in a
// CREATE TABLE statement.  This includes the column name, its
// datatype, and other keywords such as PRIMARY KEY, UNIQUE, REFERENCES,
// NOT NULL and so forth.
//
column(A) ::= columnid(A) type carglist. {
  A.n = (int)(pParse->sLastToken.z-A.z) + pParse->sLastToken.n;
}
columnid(A) ::= nm(A). {
  sqlite3AddColumn(pParse,&A);
  pParse->constraintName.n = 0;
}


// An IDENTIFIER can be a generic identifier, or one of several
// keywords.  Any non-standard keyword can also be an identifier.
//
%token_class id  ID|INDEXED.

// The following directive causes tokens ABORT, AFTER, ASC, etc. to
................................................................................
// The name of a column or table can be any of the following:
//
%type nm {Token}
nm(A) ::= id(A).
nm(A) ::= STRING(A).
nm(A) ::= JOIN_KW(A).

// A typetoken is really one or more tokens that form a type name such
// as can be found after the column name in a CREATE TABLE statement.
// Multiple tokens are concatenated to form the value of the typetoken.
//
%type typetoken {Token}
type ::= .
type ::= typetoken(X).                   {sqlite3AddColumnType(pParse,&X);}
typetoken(A) ::= typename(A).
typetoken(A) ::= typename(A) LP signed RP(Y). {
  A.n = (int)(&Y.z[Y.n] - A.z);
}
typetoken(A) ::= typename(A) LP signed COMMA signed RP(Y). {
  A.n = (int)(&Y.z[Y.n] - A.z);
}
................................................................................

// An option "AS <id>" phrase that can follow one of the expressions that
// define the result set, or one of the tables in the FROM clause.
//
%type as {Token}
as(X) ::= AS nm(Y).    {X = Y;}
as(X) ::= ids(X).
as(X) ::= .            {X.n = 0;}


%type seltablist {SrcList*}
%destructor seltablist {sqlite3SrcListDelete(pParse->db, $$);}
%type stl_prefix {SrcList*}
%destructor stl_prefix {sqlite3SrcListDelete(pParse->db, $$);}
%type from {SrcList*}
................................................................................
%endif

//////////////////////// ALTER TABLE table ... ////////////////////////////////
%ifndef SQLITE_OMIT_ALTERTABLE
cmd ::= ALTER TABLE fullname(X) RENAME TO nm(Z). {
  sqlite3AlterRenameTable(pParse,X,&Z);
}
cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt column(Y). {


  sqlite3AlterFinishAddColumn(pParse, &Y);
}
add_column_fullname ::= fullname(X). {
  disableLookaside(pParse);
  sqlite3AlterBeginAddColumn(pParse, X);
}
kwcolumn_opt ::= .

  if( X.n==5 && sqlite3_strnicmp(X.z,"rowid",5)==0 ){
    A = TF_WithoutRowid | TF_NoVisibleRowid;
  }else{
    A = 0;
    sqlite3ErrorMsg(pParse, "unknown table option: %.*s", X.n, X.z);
  }
}
columnlist ::= columnlist COMMA columnname carglist.
columnlist ::= columnname carglist.










columnname(A) ::= nm(A) typetoken(Y). {sqlite3AddColumn(pParse,&A,&Y);}




// An IDENTIFIER can be a generic identifier, or one of several
// keywords.  Any non-standard keyword can also be an identifier.
//
%token_class id  ID|INDEXED.

// The following directive causes tokens ABORT, AFTER, ASC, etc. to
................................................................................
// The name of a column or table can be any of the following:
//
%type nm {Token}
nm(A) ::= id(A).
nm(A) ::= STRING(A).
nm(A) ::= JOIN_KW(A).

// A typetoken is really zero or more tokens that form a type name such
// as can be found after the column name in a CREATE TABLE statement.
// Multiple tokens are concatenated to form the value of the typetoken.
//
%type typetoken {Token}
typetoken(A) ::= .   {A.n = 0; A.z = 0;}

typetoken(A) ::= typename(A).
typetoken(A) ::= typename(A) LP signed RP(Y). {
  A.n = (int)(&Y.z[Y.n] - A.z);
}
typetoken(A) ::= typename(A) LP signed COMMA signed RP(Y). {
  A.n = (int)(&Y.z[Y.n] - A.z);
}
................................................................................

// An option "AS <id>" phrase that can follow one of the expressions that
// define the result set, or one of the tables in the FROM clause.
//
%type as {Token}
as(X) ::= AS nm(Y).    {X = Y;}
as(X) ::= ids(X).
as(X) ::= .            {X.n = 0; X.z = 0;}


%type seltablist {SrcList*}
%destructor seltablist {sqlite3SrcListDelete(pParse->db, $$);}
%type stl_prefix {SrcList*}
%destructor stl_prefix {sqlite3SrcListDelete(pParse->db, $$);}
%type from {SrcList*}
................................................................................
%endif

//////////////////////// ALTER TABLE table ... ////////////////////////////////
%ifndef SQLITE_OMIT_ALTERTABLE
cmd ::= ALTER TABLE fullname(X) RENAME TO nm(Z). {
  sqlite3AlterRenameTable(pParse,X,&Z);
}
cmd ::= ALTER TABLE add_column_fullname
        ADD kwcolumn_opt columnname(Y) carglist. {
  Y.n = (int)(pParse->sLastToken.z-Y.z) + pParse->sLastToken.n;
  sqlite3AlterFinishAddColumn(pParse, &Y);
}
add_column_fullname ::= fullname(X). {
  disableLookaside(pParse);
  sqlite3AlterBeginAddColumn(pParse, X);
}
kwcolumn_opt ::= .

      Column *pCol;
      Index *pPk = sqlite3PrimaryKeyIndex(pTab);
      pParse->nMem = 6;
      sqlite3CodeVerifySchema(pParse, iDb);
      setAllColumnNames(v, 6, azCol); assert( 6==ArraySize(azCol) );
      sqlite3ViewGetColumnNames(pParse, pTab);
      for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){

        if( IsHiddenColumn(pCol) ){
          nHidden++;
          continue;
        }
        if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){
          k = 0;
        }else if( pPk==0 ){
          k = 1;
        }else{
          for(k=1; k<=pTab->nCol && pPk->aiColumn[k-1]!=i; k++){}
        }


        sqlite3VdbeMultiLoad(v, 1, "issisi",
               i-nHidden,
               pCol->zName,
               pCol->zType ? pCol->zType : "",

               pCol->notNull ? 1 : 0,
               pCol->zDflt,

               k);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6);
      }
    }
  }
  break;

      Column *pCol;
      Index *pPk = sqlite3PrimaryKeyIndex(pTab);
      pParse->nMem = 6;
      sqlite3CodeVerifySchema(pParse, iDb);
      setAllColumnNames(v, 6, azCol); assert( 6==ArraySize(azCol) );
      sqlite3ViewGetColumnNames(pParse, pTab);
      for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
        const char *zName;
        if( IsHiddenColumn(pCol) ){
          nHidden++;
          continue;
        }
        if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){
          k = 0;
        }else if( pPk==0 ){
          k = 1;
        }else{
          for(k=1; k<=pTab->nCol && pPk->aiColumn[k-1]!=i; k++){}
        }
        assert( pCol->pDflt==0 || pCol->pDflt->op==TK_SPAN );
        zName = pCol->zName;
        sqlite3VdbeMultiLoad(v, 1, "issisi",
               i-nHidden,
               zName,

               sqlite3StrNext(zName),
               pCol->notNull ? 1 : 0,

               pCol->pDflt ? pCol->pDflt->u.zToken : 0,
               k);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6);
      }
    }
  }
  break;

        if( iCol<0 ) iCol = pTab->iPKey;
        assert( iCol==-1 || (iCol>=0 && iCol<pTab->nCol) );
#ifdef SQLITE_ENABLE_COLUMN_METADATA
        if( iCol<0 ){
          zType = "INTEGER";
          zOrigCol = "rowid";
        }else{
          zType = pTab->aCol[iCol].zType;
          zOrigCol = pTab->aCol[iCol].zName;

          estWidth = pTab->aCol[iCol].szEst;
        }
        zOrigTab = pTab->zName;
        if( pNC->pParse ){
          int iDb = sqlite3SchemaToIndex(pNC->pParse->db, pTab->pSchema);
          zOrigDb = pNC->pParse->db->aDb[iDb].zName;
        }
#else
        if( iCol<0 ){
          zType = "INTEGER";
        }else{
          zType = pTab->aCol[iCol].zType;
          estWidth = pTab->aCol[iCol].szEst;
        }
#endif
      }
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
................................................................................
  assert( pTab->nCol==pSelect->pEList->nExpr || db->mallocFailed );
  if( db->mallocFailed ) return;
  memset(&sNC, 0, sizeof(sNC));
  sNC.pSrcList = pSelect->pSrc;
  a = pSelect->pEList->a;
  for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
    p = a[i].pExpr;
    if( pCol->zType==0 ){
      pCol->zType = sqlite3DbStrDup(db, 
                        columnType(&sNC, p,0,0,0, &pCol->szEst));
    }
    szAll += pCol->szEst;
    pCol->affinity = sqlite3ExprAffinity(p);
    if( pCol->affinity==0 ) pCol->affinity = SQLITE_AFF_BLOB;
    pColl = sqlite3ExprCollSeq(pParse, p);
    if( pColl && pCol->zColl==0 ){
      pCol->zColl = sqlite3DbStrDup(db, pColl->zName);
    }

        if( iCol<0 ) iCol = pTab->iPKey;
        assert( iCol==-1 || (iCol>=0 && iCol<pTab->nCol) );
#ifdef SQLITE_ENABLE_COLUMN_METADATA
        if( iCol<0 ){
          zType = "INTEGER";
          zOrigCol = "rowid";
        }else{

          zOrigCol = pTab->aCol[iCol].zName;
          zType = sqlite3StrNext(zOrigCol);
          estWidth = pTab->aCol[iCol].szEst;
        }
        zOrigTab = pTab->zName;
        if( pNC->pParse ){
          int iDb = sqlite3SchemaToIndex(pNC->pParse->db, pTab->pSchema);
          zOrigDb = pNC->pParse->db->aDb[iDb].zName;
        }
#else
        if( iCol<0 ){
          zType = "INTEGER";
        }else{
          zType = sqlite3StrNext(pTab->aCol[iCol].zName);
          estWidth = pTab->aCol[iCol].szEst;
        }
#endif
      }
      break;
    }
#ifndef SQLITE_OMIT_SUBQUERY
................................................................................
  assert( pTab->nCol==pSelect->pEList->nExpr || db->mallocFailed );
  if( db->mallocFailed ) return;
  memset(&sNC, 0, sizeof(sNC));
  sNC.pSrcList = pSelect->pSrc;
  a = pSelect->pEList->a;
  for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
    p = a[i].pExpr;


    columnType(&sNC, p, 0, 0, 0, &pCol->szEst);

    szAll += pCol->szEst;
    pCol->affinity = sqlite3ExprAffinity(p);
    if( pCol->affinity==0 ) pCol->affinity = SQLITE_AFF_BLOB;
    pColl = sqlite3ExprCollSeq(pParse, p);
    if( pColl && pCol->zColl==0 ){
      pCol->zColl = sqlite3DbStrDup(db, pColl->zName);
    }

};

/*
** information about each column of an SQL table is held in an instance
** of this structure.
*/
struct Column {
  char *zName;     /* Name of this column */
  Expr *pDflt;     /* Default value of this column */
  char *zDflt;     /* Original text of the default value */
  char *zType;     /* Data type for this column */
  char *zColl;     /* Collating sequence.  If NULL, use the default */
  u8 notNull;      /* An OE_ code for handling a NOT NULL constraint */
  char affinity;   /* One of the SQLITE_AFF_... values */
  u8 szEst;        /* Estimated size of value in this column. sizeof(INT)==1 */
  u8 colFlags;     /* Boolean properties.  See COLFLAG_ defines below */
};

................................................................................
#endif

/*
** Internal function prototypes
*/
int sqlite3StrICmp(const char*,const char*);
int sqlite3Strlen30(const char*);

#define sqlite3StrNICmp sqlite3_strnicmp

int sqlite3MallocInit(void);
void sqlite3MallocEnd(void);
void *sqlite3Malloc(u64);
void *sqlite3MallocZero(u64);
void *sqlite3DbMallocZero(sqlite3*, u64);
................................................................................
i16 sqlite3ColumnOfIndex(Index*, i16);
void sqlite3StartTable(Parse*,Token*,Token*,int,int,int,int);
#if SQLITE_ENABLE_HIDDEN_COLUMNS
  void sqlite3ColumnPropertiesFromName(Table*, Column*);
#else
# define sqlite3ColumnPropertiesFromName(T,C) /* no-op */
#endif
void sqlite3AddColumn(Parse*,Token*);
void sqlite3AddNotNull(Parse*, int);
void sqlite3AddPrimaryKey(Parse*, ExprList*, int, int, int);
void sqlite3AddCheckConstraint(Parse*, Expr*);
void sqlite3AddColumnType(Parse*,Token*);
void sqlite3AddDefaultValue(Parse*,ExprSpan*);
void sqlite3AddCollateType(Parse*, Token*);
void sqlite3EndTable(Parse*,Token*,Token*,u8,Select*);
int sqlite3ParseUri(const char*,const char*,unsigned int*,
                    sqlite3_vfs**,char**,char **);
Btree *sqlite3DbNameToBtree(sqlite3*,const char*);
int sqlite3CodeOnce(Parse *);

};

/*
** information about each column of an SQL table is held in an instance
** of this structure.
*/
struct Column {
  char *zName;     /* Name of this column, \000, then the type */
  Expr *pDflt;     /* Default value of this column */


  char *zColl;     /* Collating sequence.  If NULL, use the default */
  u8 notNull;      /* An OE_ code for handling a NOT NULL constraint */
  char affinity;   /* One of the SQLITE_AFF_... values */
  u8 szEst;        /* Estimated size of value in this column. sizeof(INT)==1 */
  u8 colFlags;     /* Boolean properties.  See COLFLAG_ defines below */
};

................................................................................
#endif

/*
** Internal function prototypes
*/
int sqlite3StrICmp(const char*,const char*);
int sqlite3Strlen30(const char*);
const char *sqlite3StrNext(const char*);
#define sqlite3StrNICmp sqlite3_strnicmp

int sqlite3MallocInit(void);
void sqlite3MallocEnd(void);
void *sqlite3Malloc(u64);
void *sqlite3MallocZero(u64);
void *sqlite3DbMallocZero(sqlite3*, u64);
................................................................................
i16 sqlite3ColumnOfIndex(Index*, i16);
void sqlite3StartTable(Parse*,Token*,Token*,int,int,int,int);
#if SQLITE_ENABLE_HIDDEN_COLUMNS
  void sqlite3ColumnPropertiesFromName(Table*, Column*);
#else
# define sqlite3ColumnPropertiesFromName(T,C) /* no-op */
#endif
void sqlite3AddColumn(Parse*,Token*,Token*);
void sqlite3AddNotNull(Parse*, int);
void sqlite3AddPrimaryKey(Parse*, ExprList*, int, int, int);
void sqlite3AddCheckConstraint(Parse*, Expr*);

void sqlite3AddDefaultValue(Parse*,ExprSpan*);
void sqlite3AddCollateType(Parse*, Token*);
void sqlite3EndTable(Parse*,Token*,Token*,u8,Select*);
int sqlite3ParseUri(const char*,const char*,unsigned int*,
                    sqlite3_vfs**,char**,char **);
Btree *sqlite3DbNameToBtree(sqlite3*,const char*);
int sqlite3CodeOnce(Parse *);

    extern int Sqlitetestrtree_Init(Tcl_Interp*);
    extern int Sqlitequota_Init(Tcl_Interp*);
    extern int Sqlitemultiplex_Init(Tcl_Interp*);
    extern int SqliteSuperlock_Init(Tcl_Interp*);
    extern int SqlitetestSyscall_Init(Tcl_Interp*);
    extern int Fts5tcl_Init(Tcl_Interp *);
    extern int SqliteRbu_Init(Tcl_Interp*);

#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)
    extern int Sqlitetestfts3_Init(Tcl_Interp *interp);
#endif

#ifdef SQLITE_ENABLE_ZIPVFS
    extern int Zipvfs_Init(Tcl_Interp*);
    Zipvfs_Init(interp);
................................................................................
    Sqlitetestrtree_Init(interp);
    Sqlitequota_Init(interp);
    Sqlitemultiplex_Init(interp);
    SqliteSuperlock_Init(interp);
    SqlitetestSyscall_Init(interp);
    Fts5tcl_Init(interp);
    SqliteRbu_Init(interp);


#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)
    Sqlitetestfts3_Init(interp);
#endif

    Tcl_CreateObjCommand(
        interp, "load_testfixture_extensions", init_all_cmd, 0, 0

    extern int Sqlitetestrtree_Init(Tcl_Interp*);
    extern int Sqlitequota_Init(Tcl_Interp*);
    extern int Sqlitemultiplex_Init(Tcl_Interp*);
    extern int SqliteSuperlock_Init(Tcl_Interp*);
    extern int SqlitetestSyscall_Init(Tcl_Interp*);
    extern int Fts5tcl_Init(Tcl_Interp *);
    extern int SqliteRbu_Init(Tcl_Interp*);
    extern int Sqlitetesttcl_Init(Tcl_Interp*);
#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)
    extern int Sqlitetestfts3_Init(Tcl_Interp *interp);
#endif

#ifdef SQLITE_ENABLE_ZIPVFS
    extern int Zipvfs_Init(Tcl_Interp*);
    Zipvfs_Init(interp);
................................................................................
    Sqlitetestrtree_Init(interp);
    Sqlitequota_Init(interp);
    Sqlitemultiplex_Init(interp);
    SqliteSuperlock_Init(interp);
    SqlitetestSyscall_Init(interp);
    Fts5tcl_Init(interp);
    SqliteRbu_Init(interp);
    Sqlitetesttcl_Init(interp);

#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)
    Sqlitetestfts3_Init(interp);
#endif

    Tcl_CreateObjCommand(
        interp, "load_testfixture_extensions", init_all_cmd, 0, 0

/*
** 2016-03-01
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing the virtual table xBestIndex method and the query
** planner.
*/


/*
** INSTRUCTIONS
**
** This module exports a single tcl command - [register_tcl_module]. When
** invoked, it registers a special virtual table module with a database
** connection.
**
** The virtual table is currently read-only. And always returns zero rows.
** It is created with a single argument - the name of a Tcl command - as
** follows:
**
**   CREATE VIRTUAL TABLE x1 USING tcl(tcl_command);
**
** The command [tcl_command] is invoked when the table is first created (or
** connected), when the xBestIndex() method is invoked and when the xFilter()
** method is called. When it is created (or connected), it is invoked as
** follows:
**
**   tcl_command xConnect
**
** In this case the return value of the script is passed to the
** sqlite3_declare_vtab() function to create the virtual table schema.
**
** When the xBestIndex() method is called by SQLite, the Tcl command is
** invoked as:
**
**   tcl_command xBestIndex CONSTRAINTS ORDERBY MASK
**
** where CONSTRAINTS is a tcl representation of the aConstraints[] array,
** ORDERBY is a representation of the contents of the aOrderBy[] array and
** MASK is a copy of sqlite3_index_info.colUsed. For example if the virtual
** table is declared as:
**
**   CREATE TABLE x1(a, b, c)
**
** and the query is:
**
**   SELECT * FROM x1 WHERE a=? AND c<? ORDER BY b, c;
**
** then the Tcl command is:
**
**   tcl_command xBestIndex                                  \
**     {{op eq column 0 usable 1} {op lt column 2 usable 1}} \
**     {{column 1 desc 0} {column 2 desc 0}}                 \
**     7
**
** The return value of the script is a list of key-value pairs used to
** populate the output fields of the sqlite3_index_info structure. Possible
** keys and the usage of the accompanying values are:
** 
**   "orderby"          (value of orderByConsumed flag)
**   "cost"             (value of estimatedCost field)
**   "rows"             (value of estimatedRows field)
**   "use"              (index of used constraint in aConstraint[])
**   "omit"             (like "use", but also sets omit flag)
**   "idxnum"           (value of idxNum field)
**   "idxstr"           (value of idxStr field)
**
** Refer to code below for further details.
**
** When SQLite calls the xFilter() method, this module invokes the following
** Tcl script:
**
**   tcl_command xFilter IDXNUM IDXSTR ARGLIST
**
** IDXNUM and IDXSTR are the values of the idxNum and idxStr parameters
** passed to xFilter. ARGLIST is a Tcl list containing each of the arguments
** passed to xFilter in text form.
**
** As with xBestIndex(), the return value of the script is interpreted as a
** list of key-value pairs. There is currently only one key defined - "sql".
** The value must be the full text of an SQL statement that returns the data
** for the current scan. The leftmost column returned by the SELECT is assumed
** to contain the rowid. Other columns must follow, in order from left to
** right.
*/


#include "sqliteInt.h"
#include "tcl.h"

#ifndef SQLITE_OMIT_VIRTUALTABLE

typedef struct tcl_vtab tcl_vtab;
typedef struct tcl_cursor tcl_cursor;

/* 
** A fs virtual-table object 
*/
struct tcl_vtab {
  sqlite3_vtab base;
  Tcl_Interp *interp;
  Tcl_Obj *pCmd;
  sqlite3 *db;
};

/* A tcl cursor object */
struct tcl_cursor {
  sqlite3_vtab_cursor base;
  sqlite3_stmt *pStmt;            /* Read data from here */
};

/*
** This function is the implementation of both the xConnect and xCreate
** methods of the fs virtual table.
**
** The argv[] array contains the following:
**
**   argv[0]   -> module name  ("fs")
**   argv[1]   -> database name
**   argv[2]   -> table name
**   argv[...] -> other module argument fields.
*/
static int tclConnect(
  sqlite3 *db,
  void *pAux,
  int argc, const char *const*argv,
  sqlite3_vtab **ppVtab,
  char **pzErr
){
  Tcl_Interp *interp = (Tcl_Interp*)pAux;
  tcl_vtab *pTab;
  const char *zCmd;
  Tcl_Obj *pScript = 0;
  int rc;

  if( argc!=4 ){
    *pzErr = sqlite3_mprintf("wrong number of arguments");
    return SQLITE_ERROR;
  }
  zCmd = argv[3];

  pTab = (tcl_vtab*)sqlite3_malloc(sizeof(tcl_vtab));
  if( pTab==0 ) return SQLITE_NOMEM;
  memset(pTab, 0, sizeof(tcl_vtab));

  pTab->pCmd = Tcl_NewStringObj(zCmd, -1);
  pTab->interp = interp;
  pTab->db = db;
  Tcl_IncrRefCount(pTab->pCmd);

  pScript = Tcl_DuplicateObj(pTab->pCmd);
  Tcl_IncrRefCount(pScript);
  Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj("xConnect", -1));

  rc = Tcl_EvalObjEx(interp, pScript, TCL_EVAL_GLOBAL);
  if( rc!=TCL_OK ){
    *pzErr = sqlite3_mprintf("%s", Tcl_GetStringResult(interp));
    rc = SQLITE_ERROR;
  }else{
    rc = sqlite3_declare_vtab(db, Tcl_GetStringResult(interp));
  }

  if( rc!=SQLITE_OK ){
    sqlite3_free(pTab);
    pTab = 0;
  }

  *ppVtab = &pTab->base;
  return rc;
}

/* The xDisconnect and xDestroy methods are also the same */
static int tclDisconnect(sqlite3_vtab *pVtab){
  tcl_vtab *pTab = (tcl_vtab*)pVtab;
  Tcl_DecrRefCount(pTab->pCmd);
  sqlite3_free(pTab);
  return SQLITE_OK;
}

/*
** Open a new tcl cursor.
*/
static int tclOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
  tcl_cursor *pCur;
  pCur = sqlite3_malloc(sizeof(tcl_cursor));
  if( pCur==0 ) return SQLITE_NOMEM;
  memset(pCur, 0, sizeof(tcl_cursor));
  *ppCursor = &pCur->base;
  return SQLITE_OK;
}

/*
** Close a tcl cursor.
*/
static int tclClose(sqlite3_vtab_cursor *cur){
  tcl_cursor *pCur = (tcl_cursor *)cur;
  if( pCur ){
    sqlite3_finalize(pCur->pStmt);
    sqlite3_free(pCur);
  }
  return SQLITE_OK;
}

static int tclNext(sqlite3_vtab_cursor *pVtabCursor){
  tcl_cursor *pCsr = (tcl_cursor*)pVtabCursor;
  if( pCsr->pStmt ){
    tcl_vtab *pTab = (tcl_vtab*)(pVtabCursor->pVtab);
    int rc = sqlite3_step(pCsr->pStmt);
    if( rc!=SQLITE_ROW ){
      const char *zErr;
      rc = sqlite3_finalize(pCsr->pStmt);
      pCsr->pStmt = 0;
      if( rc!=SQLITE_OK ){
        zErr = sqlite3_errmsg(pTab->db);
        pTab->base.zErrMsg = sqlite3_mprintf("%s", zErr);
      }
    }
  }
  return SQLITE_OK;
}

static int tclFilter(
  sqlite3_vtab_cursor *pVtabCursor, 
  int idxNum, const char *idxStr,
  int argc, sqlite3_value **argv
){
  tcl_cursor *pCsr = (tcl_cursor*)pVtabCursor;
  tcl_vtab *pTab = (tcl_vtab*)(pVtabCursor->pVtab);
  Tcl_Interp *interp = pTab->interp;
  Tcl_Obj *pScript;
  Tcl_Obj *pArg;
  int ii;
  int rc;

  pScript = Tcl_DuplicateObj(pTab->pCmd);
  Tcl_IncrRefCount(pScript);
  Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj("xFilter", -1));
  Tcl_ListObjAppendElement(interp, pScript, Tcl_NewIntObj(idxNum));
  if( idxStr ){
    Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj(idxStr, -1));
  }else{
    Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj("", -1));
  }

  pArg = Tcl_NewObj();
  Tcl_IncrRefCount(pArg);
  for(ii=0; ii<argc; ii++){
    const char *zVal = (const char*)sqlite3_value_text(argv[ii]);
    Tcl_Obj *pVal;
    if( zVal==0 ){
      pVal = Tcl_NewObj();
    }else{
      pVal = Tcl_NewStringObj(zVal, -1);
    }
    Tcl_ListObjAppendElement(interp, pArg, pVal);
  }
  Tcl_ListObjAppendElement(interp, pScript, pArg);
  Tcl_DecrRefCount(pArg);

  rc = Tcl_EvalObjEx(interp, pScript, TCL_EVAL_GLOBAL);
  if( rc!=TCL_OK ){
    const char *zErr = Tcl_GetStringResult(interp);
    rc = SQLITE_ERROR;
    pTab->base.zErrMsg = sqlite3_mprintf("%s", zErr);
  }else{
    /* Analyze the scripts return value. The return value should be a tcl 
    ** list object with an even number of elements. The first element of each
    ** pair must be one of:
    ** 
    **   "sql"          (SQL statement to return data)
    */
    Tcl_Obj *pRes = Tcl_GetObjResult(interp);
    Tcl_Obj **apElem = 0;
    int nElem;
    rc = Tcl_ListObjGetElements(interp, pRes, &nElem, &apElem);
    if( rc!=TCL_OK ){
      const char *zErr = Tcl_GetStringResult(interp);
      rc = SQLITE_ERROR;
      pTab->base.zErrMsg = sqlite3_mprintf("%s", zErr);
    }else{
      for(ii=0; rc==SQLITE_OK && ii<nElem; ii+=2){
        const char *zCmd = Tcl_GetString(apElem[ii]);
        Tcl_Obj *p = apElem[ii+1];
        if( sqlite3_stricmp("sql", zCmd)==0 ){
          const char *zSql = Tcl_GetString(p);
          rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pCsr->pStmt, 0);
          if( rc!=SQLITE_OK ){
            const char *zErr = sqlite3_errmsg(pTab->db);
            pTab->base.zErrMsg = sqlite3_mprintf("unexpected: %s", zErr);
          }
        }else{
          rc = SQLITE_ERROR;
          pTab->base.zErrMsg = sqlite3_mprintf("unexpected: %s", zCmd);
        }
      }
    }
  }

  if( rc==SQLITE_OK ){
    rc = tclNext(pVtabCursor);
  }
  return rc;
}

static int tclColumn(
  sqlite3_vtab_cursor *pVtabCursor, 
  sqlite3_context *ctx, 
  int i
){
  tcl_cursor *pCsr = (tcl_cursor*)pVtabCursor;
  sqlite3_result_value(ctx, sqlite3_column_value(pCsr->pStmt, i+1));
  return SQLITE_OK;
}

static int tclRowid(sqlite3_vtab_cursor *pVtabCursor, sqlite_int64 *pRowid){
  tcl_cursor *pCsr = (tcl_cursor*)pVtabCursor;
  *pRowid = sqlite3_column_int64(pCsr->pStmt, 0);
  return SQLITE_OK;
}

static int tclEof(sqlite3_vtab_cursor *pVtabCursor){
  tcl_cursor *pCsr = (tcl_cursor*)pVtabCursor;
  return (pCsr->pStmt==0);
}

static int tclBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
  tcl_vtab *pTab = (tcl_vtab*)tab;
  Tcl_Interp *interp = pTab->interp;
  Tcl_Obj *pArg;
  Tcl_Obj *pScript;
  int ii;
  int rc = SQLITE_OK;

  pScript = Tcl_DuplicateObj(pTab->pCmd);
  Tcl_IncrRefCount(pScript);
  Tcl_ListObjAppendElement(interp, pScript, Tcl_NewStringObj("xBestIndex", -1));

  pArg = Tcl_NewObj();
  Tcl_IncrRefCount(pArg);
  for(ii=0; ii<pIdxInfo->nConstraint; ii++){
    struct sqlite3_index_constraint const *pCons = &pIdxInfo->aConstraint[ii];
    Tcl_Obj *pElem = Tcl_NewObj();
    const char *zOp = "?";

    Tcl_IncrRefCount(pElem);

    switch( pCons->op ){
      case SQLITE_INDEX_CONSTRAINT_EQ:
        zOp = "eq"; break;
      case SQLITE_INDEX_CONSTRAINT_GT:
        zOp = "gt"; break;
      case SQLITE_INDEX_CONSTRAINT_LE:
        zOp = "le"; break;
      case SQLITE_INDEX_CONSTRAINT_LT:
        zOp = "lt"; break;
      case SQLITE_INDEX_CONSTRAINT_GE:
        zOp = "ge"; break;
      case SQLITE_INDEX_CONSTRAINT_MATCH:
        zOp = "match"; break;
      case SQLITE_INDEX_CONSTRAINT_LIKE:
        zOp = "like"; break;
      case SQLITE_INDEX_CONSTRAINT_GLOB:
        zOp = "glob"; break;
      case SQLITE_INDEX_CONSTRAINT_REGEXP:
        zOp = "regexp"; break;
    }

    Tcl_ListObjAppendElement(0, pElem, Tcl_NewStringObj("op", -1));
    Tcl_ListObjAppendElement(0, pElem, Tcl_NewStringObj(zOp, -1));
    Tcl_ListObjAppendElement(0, pElem, Tcl_NewStringObj("column", -1));
    Tcl_ListObjAppendElement(0, pElem, Tcl_NewIntObj(pCons->iColumn));
    Tcl_ListObjAppendElement(0, pElem, Tcl_NewStringObj("usable", -1));
    Tcl_ListObjAppendElement(0, pElem, Tcl_NewIntObj(pCons->usable));

    Tcl_ListObjAppendElement(0, pArg, pElem);
    Tcl_DecrRefCount(pElem);
  }

  Tcl_ListObjAppendElement(0, pScript, pArg);
  Tcl_DecrRefCount(pArg);

  pArg = Tcl_NewObj();
  Tcl_IncrRefCount(pArg);
  for(ii=0; ii<pIdxInfo->nOrderBy; ii++){
    struct sqlite3_index_orderby const *pOrder = &pIdxInfo->aOrderBy[ii];
    Tcl_Obj *pElem = Tcl_NewObj();
    Tcl_IncrRefCount(pElem);

    Tcl_ListObjAppendElement(0, pElem, Tcl_NewStringObj("column", -1));
    Tcl_ListObjAppendElement(0, pElem, Tcl_NewIntObj(pOrder->iColumn));
    Tcl_ListObjAppendElement(0, pElem, Tcl_NewStringObj("desc", -1));
    Tcl_ListObjAppendElement(0, pElem, Tcl_NewIntObj(pOrder->desc));

    Tcl_ListObjAppendElement(0, pArg, pElem);
    Tcl_DecrRefCount(pElem);
  }

  Tcl_ListObjAppendElement(0, pScript, pArg);
  Tcl_DecrRefCount(pArg);

  Tcl_ListObjAppendElement(0, pScript, Tcl_NewWideIntObj(pIdxInfo->colUsed));

  rc = Tcl_EvalObjEx(interp, pScript, TCL_EVAL_GLOBAL);
  Tcl_DecrRefCount(pScript);
  if( rc!=TCL_OK ){
    const char *zErr = Tcl_GetStringResult(interp);
    rc = SQLITE_ERROR;
    pTab->base.zErrMsg = sqlite3_mprintf("%s", zErr);
  }else{
    /* Analyze the scripts return value. The return value should be a tcl 
    ** list object with an even number of elements. The first element of each
    ** pair must be one of:
    ** 
    **   "orderby"          (value of orderByConsumed flag)
    **   "cost"             (value of estimatedCost field)
    **   "rows"             (value of estimatedRows field)
    **   "use"              (index of used constraint in aConstraint[])
    **   "idxnum"           (value of idxNum field)
    **   "idxstr"           (value of idxStr field)
    **   "omit"             (index of omitted constraint in aConstraint[])
    */
    Tcl_Obj *pRes = Tcl_GetObjResult(interp);
    Tcl_Obj **apElem = 0;
    int nElem;
    rc = Tcl_ListObjGetElements(interp, pRes, &nElem, &apElem);
    if( rc!=TCL_OK ){
      const char *zErr = Tcl_GetStringResult(interp);
      rc = SQLITE_ERROR;
      pTab->base.zErrMsg = sqlite3_mprintf("%s", zErr);
    }else{
      int iArgv = 1;
      for(ii=0; rc==SQLITE_OK && ii<nElem; ii+=2){
        const char *zCmd = Tcl_GetString(apElem[ii]);
        Tcl_Obj *p = apElem[ii+1];
        if( sqlite3_stricmp("cost", zCmd)==0 ){
          rc = Tcl_GetDoubleFromObj(interp, p, &pIdxInfo->estimatedCost);
        }else
        if( sqlite3_stricmp("orderby", zCmd)==0 ){
          rc = Tcl_GetIntFromObj(interp, p, &pIdxInfo->orderByConsumed);
        }else
        if( sqlite3_stricmp("idxnum", zCmd)==0 ){
          rc = Tcl_GetIntFromObj(interp, p, &pIdxInfo->idxNum);
        }else
        if( sqlite3_stricmp("idxstr", zCmd)==0 ){
          sqlite3_free(pIdxInfo->idxStr);
          pIdxInfo->idxStr = sqlite3_mprintf("%s", Tcl_GetString(p));
          pIdxInfo->needToFreeIdxStr = 1;
        }else
        if( sqlite3_stricmp("rows", zCmd)==0 ){
          rc = Tcl_GetWideIntFromObj(interp, p, &pIdxInfo->estimatedRows);
        }else
        if( sqlite3_stricmp("use", zCmd)==0 
         || sqlite3_stricmp("omit", zCmd)==0 
        ){
          int iCons;
          rc = Tcl_GetIntFromObj(interp, p, &iCons);
          if( rc==SQLITE_OK ){
            if( iCons<0 || iCons>=pIdxInfo->nConstraint ){
              rc = SQLITE_ERROR;
              pTab->base.zErrMsg = sqlite3_mprintf("unexpected: %d", iCons);
            }else{
              int bOmit = (zCmd[0]=='o' || zCmd[0]=='O');
              pIdxInfo->aConstraintUsage[iCons].argvIndex = iArgv++;
              pIdxInfo->aConstraintUsage[iCons].omit = bOmit;
            }
          }
        }else{
          rc = SQLITE_ERROR;
          pTab->base.zErrMsg = sqlite3_mprintf("unexpected: %s", zCmd);
        }
        if( rc!=SQLITE_OK && pTab->base.zErrMsg==0 ){
          const char *zErr = Tcl_GetStringResult(interp);
          pTab->base.zErrMsg = sqlite3_mprintf("%s", zErr);
        }
      }
    }
  }

  return rc;
}

/*
** A virtual table module that provides read-only access to a
** Tcl global variable namespace.
*/
static sqlite3_module tclModule = {
  0,                         /* iVersion */
  tclConnect,
  tclConnect,
  tclBestIndex,
  tclDisconnect, 
  tclDisconnect,
  tclOpen,                      /* xOpen - open a cursor */
  tclClose,                     /* xClose - close a cursor */
  tclFilter,                    /* xFilter - configure scan constraints */
  tclNext,                      /* xNext - advance a cursor */
  tclEof,                       /* xEof - check for end of scan */
  tclColumn,                    /* xColumn - read data */
  tclRowid,                     /* xRowid - read data */
  0,                           /* xUpdate */
  0,                           /* xBegin */
  0,                           /* xSync */
  0,                           /* xCommit */
  0,                           /* xRollback */
  0,                           /* xFindMethod */
  0,                           /* xRename */
};

/*
** Decode a pointer to an sqlite3 object.
*/
extern int getDbPointer(Tcl_Interp *interp, const char *zA, sqlite3 **ppDb);

/*
** Register the echo virtual table module.
*/
static int register_tcl_module(
  ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
  int objc,              /* Number of arguments */
  Tcl_Obj *CONST objv[]  /* Command arguments */
){
  sqlite3 *db;
  if( objc!=2 ){
    Tcl_WrongNumArgs(interp, 1, objv, "DB");
    return TCL_ERROR;
  }
  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
#ifndef SQLITE_OMIT_VIRTUALTABLE
  sqlite3_create_module(db, "tcl", &tclModule, (void *)interp);
#endif
  return TCL_OK;
}

#endif


/*
** Register commands with the TCL interpreter.
*/
int Sqlitetesttcl_Init(Tcl_Interp *interp){
#ifndef SQLITE_OMIT_VIRTUALTABLE
  static struct {
     char *zName;
     Tcl_ObjCmdProc *xProc;
     void *clientData;
  } aObjCmd[] = {
     { "register_tcl_module",   register_tcl_module, 0 },
  };
  int i;
  for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
    Tcl_CreateObjCommand(interp, aObjCmd[i].zName, 
        aObjCmd[i].xProc, aObjCmd[i].clientData, 0);
  }
#endif
  return TCL_OK;
}

    case TK_UMINUS:  zUniOp = "UMINUS"; break;
    case TK_UPLUS:   zUniOp = "UPLUS";  break;
    case TK_BITNOT:  zUniOp = "BITNOT"; break;
    case TK_NOT:     zUniOp = "NOT";    break;
    case TK_ISNULL:  zUniOp = "ISNULL"; break;
    case TK_NOTNULL: zUniOp = "NOTNULL"; break;







    case TK_COLLATE: {
      sqlite3TreeViewLine(pView, "COLLATE %Q", pExpr->u.zToken);
      sqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
      break;
    }

    case TK_UMINUS:  zUniOp = "UMINUS"; break;
    case TK_UPLUS:   zUniOp = "UPLUS";  break;
    case TK_BITNOT:  zUniOp = "BITNOT"; break;
    case TK_NOT:     zUniOp = "NOT";    break;
    case TK_ISNULL:  zUniOp = "ISNULL"; break;
    case TK_NOTNULL: zUniOp = "NOTNULL"; break;

    case TK_SPAN: {
      sqlite3TreeViewLine(pView, "SPAN %Q", pExpr->u.zToken);
      sqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
      break;
    }

    case TK_COLLATE: {
      sqlite3TreeViewLine(pView, "COLLATE %Q", pExpr->u.zToken);
      sqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
      break;
    }

** than the actual length of the string.  For very long strings (greater
** than 1GiB) the value returned might be less than the true string length.
*/
int sqlite3Strlen30(const char *z){
  if( z==0 ) return 0;
  return 0x3fffffff & (int)strlen(z);
}









/*
** Set the current error code to err_code and clear any prior error message.
*/
void sqlite3Error(sqlite3 *db, int err_code){
  assert( db!=0 );
  db->errCode = err_code;

** than the actual length of the string.  For very long strings (greater
** than 1GiB) the value returned might be less than the true string length.
*/
int sqlite3Strlen30(const char *z){
  if( z==0 ) return 0;
  return 0x3fffffff & (int)strlen(z);
}

/*
** The string z[] is followed immediately by another string.  Return
** a poiner to that other string.
*/
const char *sqlite3StrNext(const char *z){
  return z + strlen(z) + 1;
}

/*
** Set the current error code to err_code and clear any prior error message.
*/
void sqlite3Error(sqlite3 *db, int err_code){
  assert( db!=0 );
  db->errCode = err_code;

  const char *zNeg = "";
  int rc = SQLITE_OK;

  if( !pExpr ){
    *ppVal = 0;
    return SQLITE_OK;
  }
  while( (op = pExpr->op)==TK_UPLUS ) pExpr = pExpr->pLeft;
  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;

  /* Compressed expressions only appear when parsing the DEFAULT clause
  ** on a table column definition, and hence only when pCtx==0.  This
  ** check ensures that an EP_TokenOnly expression is never passed down
  ** into valueFromFunction(). */
  assert( (pExpr->flags & EP_TokenOnly)==0 || pCtx==0 );

  const char *zNeg = "";
  int rc = SQLITE_OK;

  if( !pExpr ){
    *ppVal = 0;
    return SQLITE_OK;
  }
  while( (op = pExpr->op)==TK_UPLUS || op==TK_SPAN ) pExpr = pExpr->pLeft;
  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;

  /* Compressed expressions only appear when parsing the DEFAULT clause
  ** on a table column definition, and hence only when pCtx==0.  This
  ** check ensures that an EP_TokenOnly expression is never passed down
  ** into valueFromFunction(). */
  assert( (pExpr->flags & EP_TokenOnly)==0 || pCtx==0 );

      ** columns of the table to see if any of them contain the token "hidden".
      ** If so, set the Column COLFLAG_HIDDEN flag and remove the token from
      ** the type string.  */
      pVTable->pNext = pTab->pVTable;
      pTab->pVTable = pVTable;

      for(iCol=0; iCol<pTab->nCol; iCol++){
        char *zType = pTab->aCol[iCol].zType;
        int nType;
        int i = 0;
        if( !zType ){
          pTab->tabFlags |= oooHidden;
          continue;
        }
        nType = sqlite3Strlen30(zType);
        if( sqlite3StrNICmp("hidden", zType, 6)||(zType[6] && zType[6]!=' ') ){
          for(i=0; i<nType; i++){
            if( (0==sqlite3StrNICmp(" hidden", &zType[i], 7))

      ** columns of the table to see if any of them contain the token "hidden".
      ** If so, set the Column COLFLAG_HIDDEN flag and remove the token from
      ** the type string.  */
      pVTable->pNext = pTab->pVTable;
      pTab->pVTable = pVTable;

      for(iCol=0; iCol<pTab->nCol; iCol++){
        char *zType = (char*)sqlite3StrNext(pTab->aCol[iCol].zName);
        int nType;
        int i = 0;
        if( !zType[0] ){
          pTab->tabFlags |= oooHidden;
          continue;
        }
        nType = sqlite3Strlen30(zType);
        if( sqlite3StrNICmp("hidden", zType, 6)||(zType[6] && zType[6]!=' ') ){
          for(i=0; i<nType; i++){
            if( (0==sqlite3StrNICmp(" hidden", &zType[i], 7))

  rc = sqlite3Stat4ProbeSetValue(pParse, p, &pRec, pExpr, aff, nEq-1, &bOk);
  pBuilder->pRec = pRec;
  if( rc!=SQLITE_OK ) return rc;
  if( bOk==0 ) return SQLITE_NOTFOUND;
  pBuilder->nRecValid = nEq;

  whereKeyStats(pParse, p, pRec, 0, a);
  WHERETRACE(0x10,("equality scan regions: %d\n", (int)a[1]));

  *pnRow = a[1];
  
  return rc;
}
#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */

#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
................................................................................
        assert( iTerm<pNew->nLSlot );
        pNew->aLTerm[iTerm] = pTerm;
        if( iTerm>mxTerm ) mxTerm = iTerm;
        testcase( iTerm==15 );
        testcase( iTerm==16 );
        if( iTerm<16 && pUsage[i].omit ) pNew->u.vtab.omitMask |= 1<<iTerm;
        if( (pTerm->eOperator & WO_IN)!=0 ){
          if( pUsage[i].omit==0 ){
            /* Do not attempt to use an IN constraint if the virtual table
            ** says that the equivalent EQ constraint cannot be safely omitted.
            ** If we do attempt to use such a constraint, some rows might be
            ** repeated in the output. */
            break;
          }
          /* A virtual table that is constrained by an IN clause may not
          ** consume the ORDER BY clause because (1) the order of IN terms
          ** is not necessarily related to the order of output terms and
          ** (2) Multiple outputs from a single IN value will not merge
          ** together.  */
          pIdxInfo->orderByConsumed = 0;
          pIdxInfo->idxFlags &= ~SQLITE_INDEX_SCAN_UNIQUE;

  rc = sqlite3Stat4ProbeSetValue(pParse, p, &pRec, pExpr, aff, nEq-1, &bOk);
  pBuilder->pRec = pRec;
  if( rc!=SQLITE_OK ) return rc;
  if( bOk==0 ) return SQLITE_NOTFOUND;
  pBuilder->nRecValid = nEq;

  whereKeyStats(pParse, p, pRec, 0, a);
  WHERETRACE(0x10,("equality scan regions %s(%d): %d\n",
                   p->zName, nEq-1, (int)a[1]));
  *pnRow = a[1];
  
  return rc;
}
#endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */

#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
................................................................................
        assert( iTerm<pNew->nLSlot );
        pNew->aLTerm[iTerm] = pTerm;
        if( iTerm>mxTerm ) mxTerm = iTerm;
        testcase( iTerm==15 );
        testcase( iTerm==16 );
        if( iTerm<16 && pUsage[i].omit ) pNew->u.vtab.omitMask |= 1<<iTerm;
        if( (pTerm->eOperator & WO_IN)!=0 ){







          /* A virtual table that is constrained by an IN clause may not
          ** consume the ORDER BY clause because (1) the order of IN terms
          ** is not necessarily related to the order of output terms and
          ** (2) Multiple outputs from a single IN value will not merge
          ** together.  */
          pIdxInfo->orderByConsumed = 0;
          pIdxInfo->idxFlags &= ~SQLITE_INDEX_SCAN_UNIQUE;

  if(  (pLoop->wsFlags & WHERE_VIRTUALTABLE)!=0 ){
    /* Case 1:  The table is a virtual-table.  Use the VFilter and VNext
    **          to access the data.
    */
    int iReg;   /* P3 Value for OP_VFilter */
    int addrNotFound;
    int nConstraint = pLoop->nLTerm;


    sqlite3ExprCachePush(pParse);
    iReg = sqlite3GetTempRange(pParse, nConstraint+2);
    addrNotFound = pLevel->addrBrk;
    for(j=0; j<nConstraint; j++){
      int iTarget = iReg+j+2;
      pTerm = pLoop->aLTerm[j];
................................................................................
    sqlite3VdbeAddOp2(v, OP_Integer, pLoop->u.vtab.idxNum, iReg);
    sqlite3VdbeAddOp2(v, OP_Integer, nConstraint, iReg+1);
    sqlite3VdbeAddOp4(v, OP_VFilter, iCur, addrNotFound, iReg,
                      pLoop->u.vtab.idxStr,
                      pLoop->u.vtab.needFree ? P4_MPRINTF : P4_STATIC);
    VdbeCoverage(v);
    pLoop->u.vtab.needFree = 0;
    for(j=0; j<nConstraint && j<16; j++){





      if( (pLoop->u.vtab.omitMask>>j)&1 ){
        disableTerm(pLevel, pLoop->aLTerm[j]);




      }













    }
    pLevel->p1 = iCur;
    pLevel->op = pWInfo->eOnePass ? OP_Noop : OP_VNext;
    pLevel->p2 = sqlite3VdbeCurrentAddr(v);















    sqlite3ReleaseTempRange(pParse, iReg, nConstraint+2);
    sqlite3ExprCachePop(pParse);
  }else
#endif /* SQLITE_OMIT_VIRTUALTABLE */

  if( (pLoop->wsFlags & WHERE_IPK)!=0
   && (pLoop->wsFlags & (WHERE_COLUMN_IN|WHERE_COLUMN_EQ))!=0

  if(  (pLoop->wsFlags & WHERE_VIRTUALTABLE)!=0 ){
    /* Case 1:  The table is a virtual-table.  Use the VFilter and VNext
    **          to access the data.
    */
    int iReg;   /* P3 Value for OP_VFilter */
    int addrNotFound;
    int nConstraint = pLoop->nLTerm;
    int iIn;    /* Counter for IN constraints */

    sqlite3ExprCachePush(pParse);
    iReg = sqlite3GetTempRange(pParse, nConstraint+2);
    addrNotFound = pLevel->addrBrk;
    for(j=0; j<nConstraint; j++){
      int iTarget = iReg+j+2;
      pTerm = pLoop->aLTerm[j];
................................................................................
    sqlite3VdbeAddOp2(v, OP_Integer, pLoop->u.vtab.idxNum, iReg);
    sqlite3VdbeAddOp2(v, OP_Integer, nConstraint, iReg+1);
    sqlite3VdbeAddOp4(v, OP_VFilter, iCur, addrNotFound, iReg,
                      pLoop->u.vtab.idxStr,
                      pLoop->u.vtab.needFree ? P4_MPRINTF : P4_STATIC);
    VdbeCoverage(v);
    pLoop->u.vtab.needFree = 0;
    pLevel->p1 = iCur;
    pLevel->op = pWInfo->eOnePass ? OP_Noop : OP_VNext;
    pLevel->p2 = sqlite3VdbeCurrentAddr(v);
    iIn = pLevel->u.in.nIn;
    for(j=nConstraint-1; j>=0; j--){
      pTerm = pLoop->aLTerm[j];
      if( j<16 && (pLoop->u.vtab.omitMask>>j)&1 ){
        disableTerm(pLevel, pTerm);
      }else if( (pTerm->eOperator & WO_IN)!=0 ){
        Expr *pCompare;  /* The comparison operator */
        Expr *pRight;    /* RHS of the comparison */
        VdbeOp *pOp;     /* Opcode to access the value of the IN constraint */

        /* Reload the constraint value into reg[iReg+j+2].  The same value
        ** was loaded into the same register prior to the OP_VFilter, but
        ** the xFilter implementation might have changed the datatype or
        ** encoding of the value in the register, so it *must* be reloaded. */
        assert( pLevel->u.in.aInLoop!=0 || db->mallocFailed );
        if( pLevel->u.in.aInLoop!=0 ){
          assert( iIn>0 );
          pOp = sqlite3VdbeGetOp(v, pLevel->u.in.aInLoop[--iIn].addrInTop);
          assert( pOp->opcode==OP_Column || pOp->opcode==OP_Rowid );
          assert( pOp->opcode!=OP_Column || pOp->p3==iReg+j+2 );
          assert( pOp->opcode!=OP_Rowid || pOp->p2==iReg+j+2 );
          testcase( pOp->opcode==OP_Rowid );
          sqlite3VdbeAddOp3(v, pOp->opcode, pOp->p1, pOp->p2, pOp->p3);
        }




        /* Generate code that will continue to the next row if 
        ** the IN constraint is not satisfied */
        pCompare = sqlite3PExpr(pParse, TK_EQ, 0, 0, 0);
        assert( pCompare!=0 || db->mallocFailed );
        if( pCompare ){
          pCompare->pLeft = pTerm->pExpr->pLeft;
          pCompare->pRight = pRight = sqlite3Expr(db, TK_REGISTER, 0);
          if( pRight ) pRight->iTable = iReg+j+2;
          sqlite3ExprIfFalse(pParse, pCompare, pLevel->addrCont, 0);
          pCompare->pLeft = 0;
          sqlite3ExprDelete(db, pCompare);
        }
      }
    }
    sqlite3ReleaseTempRange(pParse, iReg, nConstraint+2);
    sqlite3ExprCachePop(pParse);
  }else
#endif /* SQLITE_OMIT_VIRTUALTABLE */

  if( (pLoop->wsFlags & WHERE_IPK)!=0
   && (pLoop->wsFlags & (WHERE_COLUMN_IN|WHERE_COLUMN_EQ))!=0

#
# And it should be. The analyzer has a stat4 sample as follows:
#
#   sample=(x=10000, y=100) nLt=(10000 10099)
#
# There should be no other samples that start with (x=10000). So it knows 
# that (x=10000 AND y<50) must match somewhere between 0 and 99 rows, but
# know more than that. Guessing less than 20 is therefore unreasonable.
#
# At one point though, due to a problem in whereKeyStats(), the planner was
# estimating that (x=10000 AND y<50) would match only 2 rows.
#
do_eqp_test 26.1.4 {
  SELECT * FROM t1 WHERE x = 10000 AND y < 50 AND z = 444;
} {

#
# And it should be. The analyzer has a stat4 sample as follows:
#
#   sample=(x=10000, y=100) nLt=(10000 10099)
#
# There should be no other samples that start with (x=10000). So it knows 
# that (x=10000 AND y<50) must match somewhere between 0 and 99 rows, but
# no more than that. Guessing less than 20 is therefore unreasonable.
#
# At one point though, due to a problem in whereKeyStats(), the planner was
# estimating that (x=10000 AND y<50) would match only 2 rows.
#
do_eqp_test 26.1.4 {
  SELECT * FROM t1 WHERE x = 10000 AND y < 50 AND z = 444;
} {

# 2005 July 22
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
# This file implements tests for the ANALYZE command.
#
# $Id: analyze.test,v 1.9 2008/08/11 18:44:58 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix analyzeD

ifcapable {!stat4} {
  finish_test
................................................................................
do_test 1.3 {
  execsql { DELETE FROM sqlite_stat1 }
  db close
  sqlite3 db test.db
} {}

# Without stat1, because 3001 is larger than all samples in the stat4
# table, SQLite things that a=3001 matches just 1 row. So it (incorrectly)
# chooses it over the c=150 index (5 rows). Even with stat1 data, things
# worked this way before commit [e6f7f97dbc].
#
do_eqp_test 1.4 {
  SELECT * FROM t1 WHERE a=3001 AND c=150;
} {
  0 0 0 {SEARCH TABLE t1 USING INDEX t1_ab (a=?)}

# 2014-10-04
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
# This file implements tests for the ANALYZE command.
#


set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix analyzeD

ifcapable {!stat4} {
  finish_test
................................................................................
do_test 1.3 {
  execsql { DELETE FROM sqlite_stat1 }
  db close
  sqlite3 db test.db
} {}

# Without stat1, because 3001 is larger than all samples in the stat4
# table, SQLite thinks that a=3001 matches just 1 row. So it (incorrectly)
# chooses it over the c=150 index (5 rows). Even with stat1 data, things
# worked this way before commit [e6f7f97dbc].
#
do_eqp_test 1.4 {
  SELECT * FROM t1 WHERE a=3001 AND c=150;
} {
  0 0 0 {SEARCH TABLE t1 USING INDEX t1_ab (a=?)}

# 2016-03-01
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# 
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix bestindex1

register_tcl_module db

proc vtab_command {method args} {
  switch -- $method {
    xConnect {
      return "CREATE TABLE t1(a, b, c)"
    }

    xBestIndex {
      set clist [lindex $args 0]
      if {[llength $clist]!=1} { error "unexpected constraint list" }
      catch { array unset C }
      array set C [lindex $clist 0]
      if {$C(usable)} {
        return "omit 0 cost 0 rows 1 idxnum 555 idxstr eq!"
      } else {
        return "cost 1000000 rows 0 idxnum 0 idxstr scan..."
      }
    }

  }

  return {}
}

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE x1 USING tcl(vtab_command);
} {}

do_eqp_test 1.1 {
  SELECT * FROM x1 WHERE a = 'abc'
} {
  0 0 0 {SCAN TABLE x1 VIRTUAL TABLE INDEX 555:eq!}
}

do_eqp_test 1.2 {
  SELECT * FROM x1 WHERE a IN ('abc', 'def');
} {
  0 0 0 {SCAN TABLE x1 VIRTUAL TABLE INDEX 555:eq!}
  0 0 0 {EXECUTE LIST SUBQUERY 1}
}

#-------------------------------------------------------------------------
#
reset_db
register_tcl_module db

# Parameter $mode may be one of:
#
#   "omit" - Implement filtering. Set the omit flag.
#   "use"  - Implement filtering. Use the constraint, but do not set omit.
#   "use2" - Do not implement filtering. Use the constraint anyway.
#
#   
proc t1_vtab {mode method args} {
  switch -- $method {
    xConnect {
      return "CREATE TABLE t1(a, b)"
    }

    xBestIndex {
      set SQL_FILTER {SELECT * FROM t1x WHERE a='%1%'}
      set SQL_SCAN   {SELECT * FROM t1x}

      set clist [lindex $args 0]
      set idx 0
      for {set idx 0} {$idx < [llength $clist]} {incr idx} {
        array unset C
        array set C [lindex $clist $idx]
        if {$C(column)==0 && $C(op)=="eq" && $C(usable)} {
          switch -- $mode {
            "omit" {
              return [list omit $idx rows 10 cost 10 idxstr $SQL_FILTER]
            }
            "use" {
              return [list use $idx rows 10 cost 10 idxstr $SQL_FILTER]
            }
            "use2" {
              return [list use $idx rows 10 cost 10 idxstr $SQL_SCAN]
            }
            default {
              error "Bad mode - $mode"
            }
          }
        }
      }

      return [list idxstr {SELECT * FROM t1x}]
    }

    xFilter {
      set map [list %1% [lindex $args 2 0]]
      set sql [string map $map [lindex $args 1]]
      return [list sql $sql]
    }
  }

  return {}
}

do_execsql_test 2.1 {
  CREATE TABLE t1x(i INTEGER PRIMARY KEY, a, b);
  INSERT INTO t1x VALUES(1, 'one', 1);
  INSERT INTO t1x VALUES(2, 'two', 2);
  INSERT INTO t1x VALUES(3, 'three', 3);
  INSERT INTO t1x VALUES(4, 'four', 4);
}

foreach {tn mode} {
  1 use 2 omit 3 use2
} {
  do_execsql_test 2.2.$mode.1 "
    DROP TABLE IF EXISTS t1;
    CREATE VIRTUAL TABLE t1 USING tcl(t1_vtab $mode);
  "

  do_execsql_test 2.2.$mode.2 {SELECT * FROM t1} {one 1 two 2 three 3 four 4}
  do_execsql_test 2.2.$mode.3 {SELECT rowid FROM t1} {1 2 3 4}
  do_execsql_test 2.2.$mode.4 {SELECT rowid FROM t1 WHERE a='two'} {2} 

  do_execsql_test 2.2.$mode.5 {
    SELECT rowid FROM t1 WHERE a IN ('one', 'four') ORDER BY +rowid
  } {1 4} 

  set plan(use) {
    0 0 0 {SCAN TABLE t1 VIRTUAL TABLE INDEX 0:SELECT * FROM t1x WHERE a='%1%'}
    0 0 0 {EXECUTE LIST SUBQUERY 1}
    0 0 0 {USE TEMP B-TREE FOR ORDER BY}
  }
  set plan(omit) {
    0 0 0 {SCAN TABLE t1 VIRTUAL TABLE INDEX 0:SELECT * FROM t1x WHERE a='%1%'}
    0 0 0 {EXECUTE LIST SUBQUERY 1}
    0 0 0 {USE TEMP B-TREE FOR ORDER BY}
  }
  set plan(use2) {
    0 0 0 {SCAN TABLE t1 VIRTUAL TABLE INDEX 0:SELECT * FROM t1x}
    0 0 0 {EXECUTE LIST SUBQUERY 1}
    0 0 0 {USE TEMP B-TREE FOR ORDER BY}
  }

  do_eqp_test 2.2.$mode.6 { 
    SELECT rowid FROM t1 WHERE a IN ('one', 'four') ORDER BY +rowid
  } $plan($mode)
}

finish_test

# various test scripts:
#
#   $alltests
#   $allquicktests
#
set alltests [list]
foreach f [glob $testdir/*.test] { lappend alltests [file tail $f] }

foreach f [glob -nocomplain $testdir/../ext/rtree/*.test] { 


  lappend alltests $f 
}

if {$::tcl_platform(platform)!="unix"} {
  set alltests [test_set $alltests -exclude crash.test crash2.test]
}
set alltests [test_set $alltests -exclude {
................................................................................
lappend ::testsuitelist xxx

test_suite "veryquick" -prefix "" -description {
  "Very" quick test suite. Runs in minutes on a workstation.
  This test suite is the same as the "quick" tests, except that some files
  that test malloc and IO errors are omitted.
} -files [
  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *bigfile* *_err*

]

test_suite "extraquick" -prefix "" -description {
  "Extra" quick test suite. Runs in a few minutes on a workstation.
  This test suite is the same as the "veryquick" tests, except that
  slower tests are omitted.
} -files [
................................................................................
    memdb.test minmax.test misc1.test misc2.test misc3.test notnull.test
    null.test progress.test quote.test rowid.test select1.test select2.test
    select3.test select4.test select5.test select6.test sort.test 
    subselect.test tableapi.test table.test temptable.test
    trace.test trigger1.test trigger2.test trigger3.test
    trigger4.test types2.test types.test unique.test update.test
    vacuum.test view.test where.test

}

# Run some tests in exclusive locking mode.
#
test_suite "exclusive" -description {
  Run tests in exclusive locking mode.
} -presql {

# various test scripts:
#
#   $alltests
#   $allquicktests
#
set alltests [list]
foreach f [glob $testdir/*.test] { lappend alltests [file tail $f] }
foreach f [glob -nocomplain       \
    $testdir/../ext/rtree/*.test  \
    $testdir/../ext/fts5/test/*.test   \
] { 
  lappend alltests $f 
}

if {$::tcl_platform(platform)!="unix"} {
  set alltests [test_set $alltests -exclude crash.test crash2.test]
}
set alltests [test_set $alltests -exclude {
................................................................................
lappend ::testsuitelist xxx

test_suite "veryquick" -prefix "" -description {
  "Very" quick test suite. Runs in minutes on a workstation.
  This test suite is the same as the "quick" tests, except that some files
  that test malloc and IO errors are omitted.
} -files [
  test_set $allquicktests -exclude *malloc* *ioerr* *fault* *bigfile* *_err* \
      *fts5corrupt* *fts5big* *fts5aj*
]

test_suite "extraquick" -prefix "" -description {
  "Extra" quick test suite. Runs in a few minutes on a workstation.
  This test suite is the same as the "veryquick" tests, except that
  slower tests are omitted.
} -files [
................................................................................
    memdb.test minmax.test misc1.test misc2.test misc3.test notnull.test
    null.test progress.test quote.test rowid.test select1.test select2.test
    select3.test select4.test select5.test select6.test sort.test 
    subselect.test tableapi.test table.test temptable.test
    trace.test trigger1.test trigger2.test trigger3.test
    trigger4.test types2.test types.test unique.test update.test
    vacuum.test view.test where.test
    bestindex1.test
}

# Run some tests in exclusive locking mode.
#
test_suite "exclusive" -description {
  Run tests in exclusive locking mode.
} -presql {

    -DSQLITE_MAX_ATTACHED=62
  }
  "Devkit" {
    -DSQLITE_DEFAULT_FILE_FORMAT=4
    -DSQLITE_MAX_ATTACHED=30
    -DSQLITE_ENABLE_COLUMN_METADATA
    -DSQLITE_ENABLE_FTS4

    -DSQLITE_ENABLE_FTS4_PARENTHESIS
    -DSQLITE_DISABLE_FTS4_DEFERRED
    -DSQLITE_ENABLE_RTREE
    --enable-json1 --enable-fts5
  }
  "No-lookaside" {
    -DSQLITE_TEST_REALLOC_STRESS=1

    -DSQLITE_MAX_ATTACHED=62
  }
  "Devkit" {
    -DSQLITE_DEFAULT_FILE_FORMAT=4
    -DSQLITE_MAX_ATTACHED=30
    -DSQLITE_ENABLE_COLUMN_METADATA
    -DSQLITE_ENABLE_FTS4
    -DSQLITE_ENABLE_FTS5
    -DSQLITE_ENABLE_FTS4_PARENTHESIS
    -DSQLITE_DISABLE_FTS4_DEFERRED
    -DSQLITE_ENABLE_RTREE
    --enable-json1 --enable-fts5
  }
  "No-lookaside" {
    -DSQLITE_TEST_REALLOC_STRESS=1

  SELECT * FROM temp.generate_series(1,4)
} {1 {no such table: temp.generate_series}}
do_catchsql_test tabfunc01-4.3 {
  ATTACH ':memory:' AS aux1;
  CREATE TABLE aux1.t1(a,b,c);
  SELECT * FROM aux1.generate_series(1,4)
} {1 {no such table: aux1.generate_series}}
















finish_test

  SELECT * FROM temp.generate_series(1,4)
} {1 {no such table: temp.generate_series}}
do_catchsql_test tabfunc01-4.3 {
  ATTACH ':memory:' AS aux1;
  CREATE TABLE aux1.t1(a,b,c);
  SELECT * FROM aux1.generate_series(1,4)
} {1 {no such table: aux1.generate_series}}

# The next series of tests is verifying that virtual table are able
# to optimize the IN operator, even on terms that are not marked "omit".
# When the generate_series virtual table is compiled for the testfixture,
# the special -DSQLITE_SERIES_CONSTRAINT_VERIFY=1 option is used, which
# causes the xBestIndex method of generate_series to leave the
# sqlite3_index_constraint_usage.omit flag set to 0, which should cause
# the SQLite core to verify the start=, stop=, and step= constraints on
# each step of output.  At one point, the IN operator could not be used
# by virtual tables unless omit was set.
#
do_execsql_test tabfunc01-500 {
  SELECT * FROM generate_series WHERE start IN (1,7) AND stop=20 AND step=10
  ORDER BY +1;
} {1 7 11 17}

finish_test

  COLUMN
  AGG_FUNCTION
  AGG_COLUMN
  UMINUS
  UPLUS
  REGISTER
  ASTERISK

  SPACE
  ILLEGAL
}
if {[lrange $extras end-1 end]!="SPACE ILLEGAL"} {
  error "SPACE and ILLEGAL must be the last two token codes and they\
         must be in that order"
}

  COLUMN
  AGG_FUNCTION
  AGG_COLUMN
  UMINUS
  UPLUS
  REGISTER
  ASTERISK
  SPAN
  SPACE
  ILLEGAL
}
if {[lrange $extras end-1 end]!="SPACE ILLEGAL"} {
  error "SPACE and ILLEGAL must be the last two token codes and they\
         must be in that order"
}