**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This module contains C code that generates VDBE code used to process
** the WHERE clause of SQL statements.
**
** $Id: where.c,v 1.104 2004/06/10 10:51:48 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** The query generator uses an array of instances of this structure to
** help it analyze the subexpressions of the WHERE clause.  Each WHERE
** clause subexpression is separated from the others by an AND operator.
................................................................................
    Index *pIx;

    pTab = pTabList->a[i].pTab;
    if( pTab->isTransient || pTab->pSelect ) continue;
    sqlite3VdbeAddOp(v, OP_Integer, pTab->iDb, 0);
    sqlite3VdbeAddOp(v, OP_OpenRead, pTabList->a[i].iCursor, pTab->tnum);
    sqlite3VdbeAddOp(v, OP_SetNumColumns, pTabList->a[i].iCursor, pTab->nCol);
    if( pTab->tnum>1 ){
      sqlite3CodeVerifySchema(pParse, pTab->iDb);
    }
    if( (pIx = pWInfo->a[i].pIdx)!=0 ){
      sqlite3VdbeAddOp(v, OP_Integer, pIx->iDb, 0);
      sqlite3VdbeOp3(v, OP_OpenRead, pWInfo->a[i].iCur, pIx->tnum,
                     (char*)&pIx->keyInfo, P3_KEYINFO);
    }
  }

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This module contains C code that generates VDBE code used to process
** the WHERE clause of SQL statements.
**
** $Id: where.c,v 1.105 2004/06/14 08:26:35 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** The query generator uses an array of instances of this structure to
** help it analyze the subexpressions of the WHERE clause.  Each WHERE
** clause subexpression is separated from the others by an AND operator.
................................................................................
    Index *pIx;

    pTab = pTabList->a[i].pTab;
    if( pTab->isTransient || pTab->pSelect ) continue;
    sqlite3VdbeAddOp(v, OP_Integer, pTab->iDb, 0);
    sqlite3VdbeAddOp(v, OP_OpenRead, pTabList->a[i].iCursor, pTab->tnum);
    sqlite3VdbeAddOp(v, OP_SetNumColumns, pTabList->a[i].iCursor, pTab->nCol);

    sqlite3CodeVerifySchema(pParse, pTab->iDb);

    if( (pIx = pWInfo->a[i].pIdx)!=0 ){
      sqlite3VdbeAddOp(v, OP_Integer, pIx->iDb, 0);
      sqlite3VdbeOp3(v, OP_OpenRead, pWInfo->a[i].iCur, pIx->tnum,
                     (char*)&pIx->keyInfo, P3_KEYINFO);
    }
  }

#
#***********************************************************************
# This file implements regression tests for SQLite library.  The focus of
# this file is testing the SQLite routines used for converting between the
# various suported unicode encodings (UTF-8, UTF-16, UTF-16le and
# UTF-16be).
#
# $Id: enc2.test,v 1.9 2004/06/13 23:07:04 drh Exp $

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













db close

# Return the UTF-8 representation of the supplied UTF-16 string $str. 
proc utf8 {str} {
  # If $str ends in two 0x00 0x00 bytes, knock these off before
  # converting to UTF-8 using TCL.
................................................................................
} {one two three four five UTF-16LE}
breakpoint
do_test enc2-5.11 {
  add_test_collate $DB 1 0 0
  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
  lappend res $::test_collate_enc
} {one two three four five UTF-8}















































finish_test

#
#***********************************************************************
# This file implements regression tests for SQLite library.  The focus of
# this file is testing the SQLite routines used for converting between the
# various suported unicode encodings (UTF-8, UTF-16, UTF-16le and
# UTF-16be).
#
# $Id: enc2.test,v 1.10 2004/06/14 08:26:37 danielk1977 Exp $

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

# The rough organisation of tests in this file is:
#
# enc2.1.*: Simple tests with a UTF-8 db.
# enc2.2.*: Simple tests with a UTF-16LE db.
# enc2.3.*: Simple tests with a UTF-16BE db.
# enc2.4.*: Test that attached databases must have the same text encoding
#           as the main database.
# enc2.5.*: Test the behaviour of the library when a collation sequence is
#           not available for the most desirable text encoding.
# enc2.6.*: Test that the VerifyCookie opcode protects against assuming the
#           wrong text encoding for the database.

db close

# Return the UTF-8 representation of the supplied UTF-16 string $str. 
proc utf8 {str} {
  # If $str ends in two 0x00 0x00 bytes, knock these off before
  # converting to UTF-8 using TCL.
................................................................................
} {one two three four five UTF-16LE}
breakpoint
do_test enc2-5.11 {
  add_test_collate $DB 1 0 0
  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
  lappend res $::test_collate_enc
} {one two three four five UTF-8}

db close
file delete -force test.db

# The following tests - enc2-6.* - function as follows:
#
# 1: Open an empty database file assuming UTF-16 encoding.
# 2: Open the same database with a different handle assuming UTF-8. Create
#    a table using this handle.
# 3: Read the sqlite_master table from the first handle. 
# 4: Ensure the first handle recognises the database encoding is UTF-8.
#
do_test enc2-6.1 {
  sqlite db test.db
  execsql {
    PRAGMA encoding = 'UTF-16';
    SELECT * FROM sqlite_master;
  }
} {}
do_test enc2-6.2 {
  set enc [execsql {
    PRAGMA encoding;
  }]
  string range $enc 0 end-2 ;# Chop off the "le" or "be"
} {UTF-16}
do_test enc2-6.3 {
  sqlite db2 test.db
  execsql {
    PRAGMA encoding = 'UTF-8';
    CREATE TABLE abc(a, b, c);
  } db2
} {}
do_test enc2-6.4 {
  execsql {
    SELECT * FROM sqlite_master;
  }
} {table abc abc 2 {CREATE TABLE abc(a, b, c)}}
do_test enc2-6.5 {
  execsql {
    PRAGMA encoding;
  }
} {UTF-8}

db close
db2 close


finish_test

#    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.  The
# focus of this script is database locks.
#
# $Id: lock.test,v 1.24 2004/06/12 01:43:27 danielk1977 Exp $


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

# Create an alternative connection to the database
#
................................................................................
  } db2
} {0 t1}

do_test lock-1.6 {
  execsql {INSERT INTO t1 VALUES(1,2)}
  execsql {SELECT * FROM t1}
} {1 2}

do_test lock-1.7.1 {
  catchsql {SELECT * FROM t1} db2
} {1 {no such table: t1}}
do_test lock-1.7.2 {
  catchsql {SELECT * FROM t1} db2
} {0 {1 2}}
do_test lock-1.8 {
  execsql {UPDATE t1 SET a=b, b=a} db2
  execsql {SELECT * FROM t1} db2
} {2 1}

#    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.  The
# focus of this script is database locks.
#
# $Id: lock.test,v 1.25 2004/06/14 08:26:37 danielk1977 Exp $


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

# Create an alternative connection to the database
#
................................................................................
  } db2
} {0 t1}

do_test lock-1.6 {
  execsql {INSERT INTO t1 VALUES(1,2)}
  execsql {SELECT * FROM t1}
} {1 2}
# Update: The schema is now brought up to date by test lock-1.5.
# do_test lock-1.7.1 {
#   catchsql {SELECT * FROM t1} db2
# } {1 {no such table: t1}}
do_test lock-1.7.2 {
  catchsql {SELECT * FROM t1} db2
} {0 {1 2}}
do_test lock-1.8 {
  execsql {UPDATE t1 SET a=b, b=a} db2
  execsql {SELECT * FROM t1} db2
} {2 1}

#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for temporary tables and indices.
#
# $Id: temptable.test,v 1.12 2004/06/10 10:51:53 danielk1977 Exp $

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

# Create an alternative connection to the database
#
do_test temptable-1.0 {
................................................................................
  }
} {3 4}
do_test temptable-4.10.1 {
  catchsql {
    SELECT * FROM t2;
  } db2
} {0 {1 2}}


do_test temptable-4.10.2 {
  catchsql {
    SELECT name FROM sqlite_master WHERE type='table'
  } db2
} {1 {database schema has changed}}
do_test temptable-4.10.3 {
  catchsql {
    SELECT name FROM sqlite_master WHERE type='table'
  } db2
} {0 {t1 t2}}
do_test temptable-4.11 {
  execsql {

#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for temporary tables and indices.
#
# $Id: temptable.test,v 1.13 2004/06/14 08:26:37 danielk1977 Exp $

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

# Create an alternative connection to the database
#
do_test temptable-1.0 {
................................................................................
  }
} {3 4}
do_test temptable-4.10.1 {
  catchsql {
    SELECT * FROM t2;
  } db2
} {0 {1 2}}
# Update: The schema is reloaded in test temptable-4.10.1. And tclsqlite.c
#         handles it and retries the query anyway.
# do_test temptable-4.10.2 {
#   catchsql {
#     SELECT name FROM sqlite_master WHERE type='table'
#   } db2
# } {1 {database schema has changed}}
do_test temptable-4.10.3 {
  catchsql {
    SELECT name FROM sqlite_master WHERE type='table'
  } db2
} {0 {t1 t2}}
do_test temptable-4.11 {
  execsql {

#    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.  The
# focus of this script is multithreading behavior
#
# $Id: thread1.test,v 1.5 2004/06/10 05:59:25 danielk1977 Exp $


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

# Skip this whole file if the thread testing code is not enabled
#
................................................................................
} SQLITE_OK
do_test thread1-1.12 {
  catchsql {SELECT name FROM sqlite_master}
  execsql {SELECT name FROM sqlite_master}
} {t1 t2}


# Under this scenario:
#


#    read-lock A
#    read-lock B
#    unlock A
#    write-lock C
#
# Make sure the write-lock fails with SQLITE_BUSY 






#
do_test thread1-2.1 {
  thread_halt *
  thread_create A test.db
  thread_compile A {SELECT a FROM t1}
  thread_step A
  thread_result A

#    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.  The
# focus of this script is multithreading behavior
#
# $Id: thread1.test,v 1.6 2004/06/14 08:26:37 danielk1977 Exp $


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

# Skip this whole file if the thread testing code is not enabled
#
................................................................................
} SQLITE_OK
do_test thread1-1.12 {
  catchsql {SELECT name FROM sqlite_master}
  execsql {SELECT name FROM sqlite_master}
} {t1 t2}



#
# The following tests - thread1-2.* - test the following scenario:
#
# 1:  Read-lock thread A
# 2:  Read-lock thread B

# 3:  Attempt to write in thread C -> SQLITE_BUSY
# 4:  Check db write failed from main thread.
# 5:  Unlock from thread A.
# 6:  Attempt to write in thread C -> SQLITE_BUSY
# 7:  Check db write failed from main thread.
# 8:  Unlock from thread B.
# 9:  Attempt to write in thread C -> SQLITE_DONE
# 10: Finalize the write from thread C
# 11: Check db write succeeded from main thread.
#
do_test thread1-2.1 {
  thread_halt *
  thread_create A test.db
  thread_compile A {SELECT a FROM t1}
  thread_step A
  thread_result A