/ Check-in [4c4be4c3]
Login
Home Timeline Branches Tags Tickets Wiki More...

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Reinstate test cases for the limit tests. The sqlite3_limit() API is now tested and working. (CVS 4899)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 4c4be4c3c8aae97f1d85442b25afba9f0b02c8b3
User & Date: drh 2008-03-20 16:30:18
Context
2008-03-20
18:00
In the sqlite3_limit() interface, take out the feature where zero means use the hard upper bound. If an application wants the hard upper bound, it can set the limit to 0x7fffffff and the bound will be automatically truncated. (CVS 4900) check-in: d6be1f49 user: drh tags: trunk
16:30
Reinstate test cases for the limit tests. The sqlite3_limit() API is now tested and working. (CVS 4899) check-in: 4c4be4c3 user: drh tags: trunk
16:26
Do not run crash7.test as part of a quick test. (CVS 4898) check-in: 53b4a090 user: danielk1977 tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/expr.c. 

8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
...
692
693
694
695
696
697
698
699
700
701

702
703
704
705
706
707
708
709

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.355 2008/03/20 14:03:29 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Return the 'affinity' of the expression pExpr if any.
**
................................................................................
/*
** If the expression list pEList contains more than iLimit elements,
** leave an error message in pParse.
*/
void sqlite3ExprListCheckLength(
  Parse *pParse,
  ExprList *pEList,
  int iLimit,
  const char *zObject
){

  if( pEList && pEList->nExpr>iLimit ){
    sqlite3ErrorMsg(pParse, "too many columns in %s", zObject);
  }
}


/* The following three functions, heightOfExpr(), heightOfExprList()
** and heightOfSelect(), are used to determine the maximum height








|







 







<


>
|








8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
...
692
693
694
695
696
697
698

699
700
701
702
703
704
705
706
707
708
709

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.356 2008/03/20 16:30:18 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Return the 'affinity' of the expression pExpr if any.
**
................................................................................
/*
** If the expression list pEList contains more than iLimit elements,
** leave an error message in pParse.
*/
void sqlite3ExprListCheckLength(
  Parse *pParse,
  ExprList *pEList,

  const char *zObject
){
  int mx = pParse->db->aLimit[SQLITE_LIMIT_COLUMN];
  if( pEList && pEList->nExpr>mx ){
    sqlite3ErrorMsg(pParse, "too many columns in %s", zObject);
  }
}


/* The following three functions, heightOfExpr(), heightOfExprList()
** and heightOfSelect(), are used to determine the maximum height

Changes to src/func.c. 

12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
...
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
...
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
...
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
...
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
...
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
...
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
...
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
...
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905

** This file contains the C functions that implement various SQL
** functions of SQLite.  
**
** There is only one exported symbol in this file - the function
** sqliteRegisterBuildinFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: func.c,v 1.190 2008/03/20 14:03:29 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#include <stdlib.h>
#include <assert.h>
#include "vdbeInt.h"

................................................................................
}

/*
** Allocate nByte bytes of space using sqlite3_malloc(). If the
** allocation fails, call sqlite3_result_error_nomem() to notify
** the database handle that malloc() has failed.
*/
static void *contextMalloc(sqlite3_context *context, int nByte){
  char *z;
  if( nByte>sqlite3_context_db_handle(context)->aLimit[SQLITE_LIMIT_LENGTH] ){
    sqlite3_result_error_toobig(context);
    z = 0;
  }else{
    z = sqlite3_malloc(nByte);
    if( !z && nByte>0 ){
................................................................................
  int i, n;
  if( argc<1 || SQLITE_NULL==sqlite3_value_type(argv[0]) ) return;
  z2 = (char*)sqlite3_value_text(argv[0]);
  n = sqlite3_value_bytes(argv[0]);
  /* Verify that the call to _bytes() does not invalidate the _text() pointer */
  assert( z2==(char*)sqlite3_value_text(argv[0]) );
  if( z2 ){
    z1 = contextMalloc(context, n+1);
    if( z1 ){
      memcpy(z1, z2, n+1);
      for(i=0; z1[i]; i++){
        z1[i] = toupper(z1[i]);
      }
      sqlite3_result_text(context, z1, -1, sqlite3_free);
    }
................................................................................
  int i, n;
  if( argc<1 || SQLITE_NULL==sqlite3_value_type(argv[0]) ) return;
  z2 = (char*)sqlite3_value_text(argv[0]);
  n = sqlite3_value_bytes(argv[0]);
  /* Verify that the call to _bytes() does not invalidate the _text() pointer */
  assert( z2==(char*)sqlite3_value_text(argv[0]) );
  if( z2 ){
    z1 = contextMalloc(context, n+1);
    if( z1 ){
      memcpy(z1, z2, n+1);
      for(i=0; z1[i]; i++){
        z1[i] = tolower(z1[i]);
      }
      sqlite3_result_text(context, z1, -1, sqlite3_free);
    }
................................................................................
      break;
    }
    case SQLITE_BLOB: {
      char *zText = 0;
      char const *zBlob = sqlite3_value_blob(argv[0]);
      int nBlob = sqlite3_value_bytes(argv[0]);
      assert( zBlob==sqlite3_value_blob(argv[0]) ); /* No encoding change */
      zText = (char *)contextMalloc(context, (2*nBlob)+4); 
      if( zText ){
        int i;
        for(i=0; i<nBlob; i++){
          zText[(i*2)+2] = hexdigits[(zBlob[i]>>4)&0x0F];
          zText[(i*2)+3] = hexdigits[(zBlob[i])&0x0F];
        }
        zText[(nBlob*2)+2] = '\'';
................................................................................
      int i,j;
      u64 n;
      const unsigned char *zArg = sqlite3_value_text(argv[0]);
      char *z;

      if( zArg==0 ) return;
      for(i=0, n=0; zArg[i]; i++){ if( zArg[i]=='\'' ) n++; }
      z = contextMalloc(context, i+n+3);
      if( z ){
        z[0] = '\'';
        for(i=0, j=1; zArg[i]; i++){
          z[j++] = zArg[i];
          if( zArg[i]=='\'' ){
            z[j++] = '\'';
          }
................................................................................
  int i, n;
  const unsigned char *pBlob;
  char *zHex, *z;
  assert( argc==1 );
  pBlob = sqlite3_value_blob(argv[0]);
  n = sqlite3_value_bytes(argv[0]);
  assert( pBlob==sqlite3_value_blob(argv[0]) );  /* No encoding change */
  z = zHex = contextMalloc(context, n*2 + 1);
  if( zHex ){
    for(i=0; i<n; i++, pBlob++){
      unsigned char c = *pBlob;
      *(z++) = hexdigits[(c>>4)&0xf];
      *(z++) = hexdigits[c&0xf];
    }
    *z = 0;
................................................................................
  assert( zPattern==sqlite3_value_text(argv[1]) );  /* No encoding change */
  zRep = sqlite3_value_text(argv[2]);
  if( zRep==0 ) return;
  nRep = sqlite3_value_bytes(argv[2]);
  assert( zRep==sqlite3_value_text(argv[2]) );
  nOut = nStr + 1;
  assert( nOut<SQLITE_MAX_LENGTH );
  zOut = contextMalloc(context, (int)nOut);
  if( zOut==0 ){
    return;
  }
  loopLimit = nStr - nPattern;  
  for(i=j=0; i<=loopLimit; i++){
    if( zStr[i]!=zPattern[0] || memcmp(&zStr[i], zPattern, nPattern) ){
      zOut[j++] = zStr[i];
................................................................................
    return;
  }else{
    const unsigned char *z;
    for(z=zCharSet, nChar=0; *z; nChar++){
      SQLITE_SKIP_UTF8(z);
    }
    if( nChar>0 ){
      azChar = contextMalloc(context, nChar*(sizeof(char*)+1));
      if( azChar==0 ){
        return;
      }
      aLen = (unsigned char*)&azChar[nChar];
      for(z=zCharSet, nChar=0; *z; nChar++){
        azChar[nChar] = (unsigned char *)z;
        SQLITE_SKIP_UTF8(z);








|







 







|







 







|







 







|







 







|







 







|







 







|







 







|







 







|








12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
...
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
...
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
...
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
...
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
...
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
...
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
...
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
...
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905

** This file contains the C functions that implement various SQL
** functions of SQLite.  
**
** There is only one exported symbol in this file - the function
** sqliteRegisterBuildinFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: func.c,v 1.191 2008/03/20 16:30:18 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#include <stdlib.h>
#include <assert.h>
#include "vdbeInt.h"

................................................................................
}

/*
** Allocate nByte bytes of space using sqlite3_malloc(). If the
** allocation fails, call sqlite3_result_error_nomem() to notify
** the database handle that malloc() has failed.
*/
static void *contextMalloc(sqlite3_context *context, i64 nByte){
  char *z;
  if( nByte>sqlite3_context_db_handle(context)->aLimit[SQLITE_LIMIT_LENGTH] ){
    sqlite3_result_error_toobig(context);
    z = 0;
  }else{
    z = sqlite3_malloc(nByte);
    if( !z && nByte>0 ){
................................................................................
  int i, n;
  if( argc<1 || SQLITE_NULL==sqlite3_value_type(argv[0]) ) return;
  z2 = (char*)sqlite3_value_text(argv[0]);
  n = sqlite3_value_bytes(argv[0]);
  /* Verify that the call to _bytes() does not invalidate the _text() pointer */
  assert( z2==(char*)sqlite3_value_text(argv[0]) );
  if( z2 ){
    z1 = contextMalloc(context, ((i64)n)+1);
    if( z1 ){
      memcpy(z1, z2, n+1);
      for(i=0; z1[i]; i++){
        z1[i] = toupper(z1[i]);
      }
      sqlite3_result_text(context, z1, -1, sqlite3_free);
    }
................................................................................
  int i, n;
  if( argc<1 || SQLITE_NULL==sqlite3_value_type(argv[0]) ) return;
  z2 = (char*)sqlite3_value_text(argv[0]);
  n = sqlite3_value_bytes(argv[0]);
  /* Verify that the call to _bytes() does not invalidate the _text() pointer */
  assert( z2==(char*)sqlite3_value_text(argv[0]) );
  if( z2 ){
    z1 = contextMalloc(context, ((i64)n)+1);
    if( z1 ){
      memcpy(z1, z2, n+1);
      for(i=0; z1[i]; i++){
        z1[i] = tolower(z1[i]);
      }
      sqlite3_result_text(context, z1, -1, sqlite3_free);
    }
................................................................................
      break;
    }
    case SQLITE_BLOB: {
      char *zText = 0;
      char const *zBlob = sqlite3_value_blob(argv[0]);
      int nBlob = sqlite3_value_bytes(argv[0]);
      assert( zBlob==sqlite3_value_blob(argv[0]) ); /* No encoding change */
      zText = (char *)contextMalloc(context, (2*(i64)nBlob)+4); 
      if( zText ){
        int i;
        for(i=0; i<nBlob; i++){
          zText[(i*2)+2] = hexdigits[(zBlob[i]>>4)&0x0F];
          zText[(i*2)+3] = hexdigits[(zBlob[i])&0x0F];
        }
        zText[(nBlob*2)+2] = '\'';
................................................................................
      int i,j;
      u64 n;
      const unsigned char *zArg = sqlite3_value_text(argv[0]);
      char *z;

      if( zArg==0 ) return;
      for(i=0, n=0; zArg[i]; i++){ if( zArg[i]=='\'' ) n++; }
      z = contextMalloc(context, ((i64)i)+((i64)n)+3);
      if( z ){
        z[0] = '\'';
        for(i=0, j=1; zArg[i]; i++){
          z[j++] = zArg[i];
          if( zArg[i]=='\'' ){
            z[j++] = '\'';
          }
................................................................................
  int i, n;
  const unsigned char *pBlob;
  char *zHex, *z;
  assert( argc==1 );
  pBlob = sqlite3_value_blob(argv[0]);
  n = sqlite3_value_bytes(argv[0]);
  assert( pBlob==sqlite3_value_blob(argv[0]) );  /* No encoding change */
  z = zHex = contextMalloc(context, ((i64)n)*2 + 1);
  if( zHex ){
    for(i=0; i<n; i++, pBlob++){
      unsigned char c = *pBlob;
      *(z++) = hexdigits[(c>>4)&0xf];
      *(z++) = hexdigits[c&0xf];
    }
    *z = 0;
................................................................................
  assert( zPattern==sqlite3_value_text(argv[1]) );  /* No encoding change */
  zRep = sqlite3_value_text(argv[2]);
  if( zRep==0 ) return;
  nRep = sqlite3_value_bytes(argv[2]);
  assert( zRep==sqlite3_value_text(argv[2]) );
  nOut = nStr + 1;
  assert( nOut<SQLITE_MAX_LENGTH );
  zOut = contextMalloc(context, (i64)nOut);
  if( zOut==0 ){
    return;
  }
  loopLimit = nStr - nPattern;  
  for(i=j=0; i<=loopLimit; i++){
    if( zStr[i]!=zPattern[0] || memcmp(&zStr[i], zPattern, nPattern) ){
      zOut[j++] = zStr[i];
................................................................................
    return;
  }else{
    const unsigned char *z;
    for(z=zCharSet, nChar=0; *z; nChar++){
      SQLITE_SKIP_UTF8(z);
    }
    if( nChar>0 ){
      azChar = contextMalloc(context, ((i64)nChar)*(sizeof(char*)+1));
      if( azChar==0 ){
        return;
      }
      aLen = (unsigned char*)&azChar[nChar];
      for(z=zCharSet, nChar=0; *z; nChar++){
        azChar[nChar] = (unsigned char *)z;
        SQLITE_SKIP_UTF8(z);

Changes to src/main.c. 

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
...
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
...
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989

**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.426 2008/03/20 14:03:29 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#ifdef SQLITE_ENABLE_FTS3
# include "fts3.h"
#endif

................................................................................


/*
** This array defines hard upper bounds on limit values.  The
** initializer must be kept in sync with the SQLITE_LIMIT_*
** #defines in sqlite3.h.
*/
static const aHardLimit[] = {
  SQLITE_MAX_LENGTH,
  SQLITE_MAX_SQL_LENGTH,
  SQLITE_MAX_COLUMN,
  SQLITE_MAX_EXPR_DEPTH,
  SQLITE_MAX_COMPOUND_SELECT,
  SQLITE_MAX_VDBE_OP,
  SQLITE_MAX_FUNCTION_ARG,
  SQLITE_MAX_ATTACHED,
  SQLITE_MAX_PAGE_COUNT,
  SQLITE_MAX_LIKE_PATTERN_LENGTH,
  SQLITE_MAX_VARIABLE_NUMBER,
};

/*
** Make sure the hard limits are set to reasonable values
*/
................................................................................
#endif
#if SQLITE_MAX_FUNCTION_ARG<0 || SQLITE_MAX_FUNCTION_ARG>255
# error SQLITE_MAX_FUNCTION_ARG must be between 0 and 255
#endif
#if SQLITE_MAX_ATTACH<0 || SQLITE_MAX_ATTACH>30
# error SQLITE_MAX_ATTACH must be between 0 and 30
#endif
#if SQLITE_MAX_PAGE_COUNT<1
# error SQLITE_MAX_PAGE_COUNT must be at least 1
#endif
#if SQLITE_MAX_LIKE_PATTERN_LENGTH<1
# error SQLITE_MAX_LIKE_PATTERN_LENGTH must be at least 1
#endif
#if SQLITE_MAX_VARIABLE_NUMBER<1
# error SQLITE_MAX_VARIABLE_NUMBER must be at least 1
#endif









|







 







|








<







 







<
<
<








10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
...
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944

945
946
947
948
949
950
951
...
972
973
974
975
976
977
978



979
980
981
982
983
984
985

**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.427 2008/03/20 16:30:18 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#ifdef SQLITE_ENABLE_FTS3
# include "fts3.h"
#endif

................................................................................


/*
** This array defines hard upper bounds on limit values.  The
** initializer must be kept in sync with the SQLITE_LIMIT_*
** #defines in sqlite3.h.
*/
static const int aHardLimit[] = {
  SQLITE_MAX_LENGTH,
  SQLITE_MAX_SQL_LENGTH,
  SQLITE_MAX_COLUMN,
  SQLITE_MAX_EXPR_DEPTH,
  SQLITE_MAX_COMPOUND_SELECT,
  SQLITE_MAX_VDBE_OP,
  SQLITE_MAX_FUNCTION_ARG,
  SQLITE_MAX_ATTACHED,

  SQLITE_MAX_LIKE_PATTERN_LENGTH,
  SQLITE_MAX_VARIABLE_NUMBER,
};

/*
** Make sure the hard limits are set to reasonable values
*/
................................................................................
#endif
#if SQLITE_MAX_FUNCTION_ARG<0 || SQLITE_MAX_FUNCTION_ARG>255
# error SQLITE_MAX_FUNCTION_ARG must be between 0 and 255
#endif
#if SQLITE_MAX_ATTACH<0 || SQLITE_MAX_ATTACH>30
# error SQLITE_MAX_ATTACH must be between 0 and 30
#endif



#if SQLITE_MAX_LIKE_PATTERN_LENGTH<1
# error SQLITE_MAX_LIKE_PATTERN_LENGTH must be at least 1
#endif
#if SQLITE_MAX_VARIABLE_NUMBER<1
# error SQLITE_MAX_VARIABLE_NUMBER must be at least 1
#endif

Changes to src/parse.y. 

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
...
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
...
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916

**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.240 2008/01/22 23:37:10 drh Exp $
*/

// All token codes are small integers with #defines that begin with "TK_"
%token_prefix TK_

// The type of the data attached to each token is Token.  This is also the
// default type for non-terminals.
................................................................................

where_opt(A) ::= .                    {A = 0;}
where_opt(A) ::= WHERE expr(X).       {A = X;}

////////////////////////// The UPDATE command ////////////////////////////////
//
cmd ::= UPDATE orconf(R) fullname(X) SET setlist(Y) where_opt(Z).  {
  sqlite3ExprListCheckLength(pParse,Y,SQLITE_MAX_COLUMN,"set list"); 
  sqlite3Update(pParse,X,Y,Z,R);
}

%type setlist {ExprList*}
%destructor setlist {sqlite3ExprListDelete($$);}

setlist(A) ::= setlist(Z) COMMA nm(X) EQ expr(Y).
................................................................................
idxlist(A) ::= idxlist(X) COMMA idxitem(Y) collate(C) sortorder(Z).  {
  Expr *p = 0;
  if( C.n>0 ){
    p = sqlite3PExpr(pParse, TK_COLUMN, 0, 0, 0);
    sqlite3ExprSetColl(pParse, p, &C);
  }
  A = sqlite3ExprListAppend(pParse,X, p, &Y);
  sqlite3ExprListCheckLength(pParse, A, SQLITE_MAX_COLUMN, "index");
  if( A ) A->a[A->nExpr-1].sortOrder = Z;
}
idxlist(A) ::= idxitem(Y) collate(C) sortorder(Z). {
  Expr *p = 0;
  if( C.n>0 ){
    p = sqlite3PExpr(pParse, TK_COLUMN, 0, 0, 0);
    sqlite3ExprSetColl(pParse, p, &C);
  }
  A = sqlite3ExprListAppend(pParse,0, p, &Y);
  sqlite3ExprListCheckLength(pParse, A, SQLITE_MAX_COLUMN, "index");
  if( A ) A->a[A->nExpr-1].sortOrder = Z;
}
idxitem(A) ::= nm(X).              {A = X;}

%type collate {Token}
collate(C) ::= .                {C.z = 0; C.n = 0;}
collate(C) ::= COLLATE ids(X).   {C = X;}








|







 







|







 







|









|








10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
...
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
...
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916

**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.241 2008/03/20 16:30:18 drh Exp $
*/

// All token codes are small integers with #defines that begin with "TK_"
%token_prefix TK_

// The type of the data attached to each token is Token.  This is also the
// default type for non-terminals.
................................................................................

where_opt(A) ::= .                    {A = 0;}
where_opt(A) ::= WHERE expr(X).       {A = X;}

////////////////////////// The UPDATE command ////////////////////////////////
//
cmd ::= UPDATE orconf(R) fullname(X) SET setlist(Y) where_opt(Z).  {
  sqlite3ExprListCheckLength(pParse,Y,"set list"); 
  sqlite3Update(pParse,X,Y,Z,R);
}

%type setlist {ExprList*}
%destructor setlist {sqlite3ExprListDelete($$);}

setlist(A) ::= setlist(Z) COMMA nm(X) EQ expr(Y).
................................................................................
idxlist(A) ::= idxlist(X) COMMA idxitem(Y) collate(C) sortorder(Z).  {
  Expr *p = 0;
  if( C.n>0 ){
    p = sqlite3PExpr(pParse, TK_COLUMN, 0, 0, 0);
    sqlite3ExprSetColl(pParse, p, &C);
  }
  A = sqlite3ExprListAppend(pParse,X, p, &Y);
  sqlite3ExprListCheckLength(pParse, A, "index");
  if( A ) A->a[A->nExpr-1].sortOrder = Z;
}
idxlist(A) ::= idxitem(Y) collate(C) sortorder(Z). {
  Expr *p = 0;
  if( C.n>0 ){
    p = sqlite3PExpr(pParse, TK_COLUMN, 0, 0, 0);
    sqlite3ExprSetColl(pParse, p, &C);
  }
  A = sqlite3ExprListAppend(pParse,0, p, &Y);
  sqlite3ExprListCheckLength(pParse, A, "index");
  if( A ) A->a[A->nExpr-1].sortOrder = Z;
}
idxitem(A) ::= nm(X).              {A = X;}

%type collate {Token}
collate(C) ::= .                {C.z = 0; C.n = 0;}
collate(C) ::= COLLATE ids(X).   {C = X;}

Changes to src/printf.c. 

731
732
733
734
735
736
737
738

739
740
741
742
743
744
745


746
747
748
749
750
751
752

    if( !p->useMalloc ){
      p->tooBig = 1;
      N = p->nAlloc - p->nChar - 1;
      if( N<=0 ){
        return;
      }
    }else{
      p->nAlloc += p->nAlloc + N + 1;

      if( p->nAlloc > p->mxAlloc ){
        p->nAlloc = p->mxAlloc;
        if( p->nChar+N >= p->nAlloc ){
          sqlite3StrAccumReset(p);
          p->tooBig = 1;
          return;
        }


      }
      zNew = sqlite3_malloc( p->nAlloc );
      if( zNew ){
        memcpy(zNew, p->zText, p->nChar);
        sqlite3StrAccumReset(p);
        p->zText = zNew;
      }else{








|
>
|

|




>
>








731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755

    if( !p->useMalloc ){
      p->tooBig = 1;
      N = p->nAlloc - p->nChar - 1;
      if( N<=0 ){
        return;
      }
    }else{
      i64 szNew = p->nAlloc;
      szNew += N + 1;
      if( szNew > p->mxAlloc ){
        p->nAlloc = p->mxAlloc;
        if( ((i64)p->nChar)+((i64)N) >= p->nAlloc ){
          sqlite3StrAccumReset(p);
          p->tooBig = 1;
          return;
        }
      }else{
        p->nAlloc = szNew;
      }
      zNew = sqlite3_malloc( p->nAlloc );
      if( zNew ){
        memcpy(zNew, p->zText, p->nChar);
        sqlite3StrAccumReset(p);
        p->zText = zNew;
      }else{

Changes to src/sqlite.h.in. 

26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
....
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
....
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277

** on how SQLite interfaces are suppose to operate.
**
** The name of this file under configuration management is "sqlite.h.in".
** The makefile makes some minor changes to this file (such as inserting
** the version number) and changes its name to "sqlite3.h" as
** part of the build process.
**
** @(#) $Id: sqlite.h.in,v 1.296 2008/03/20 14:03:29 drh Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
#include <stdarg.h>     /* Needed for the definition of va_list */

/*
** Make sure we can call this stuff from C++.
................................................................................
**
** <dt>SQLITE_LIMIT_FUNCTION_ARG</dt>
** <dd>The maximum number of arguments on a function.</dd>
**
** <dt>SQLITE_LIMIT_ATTACHED</dt>
** <dd>The maximum number of attached databases.</dd>
**
** <dt>SQLITE_LIMIT_PAGE_COUNT</dt>
** <dd>The maximum number of pages in a database.</dd>
**
** <dt>SQLITE_LIMIT_LIKE_PATTERN_LENGTH</dt>
** <dd>The maximum length of the pattern argument to the LIKE or
** GLOB operators.</dd>
**
** <dt>SQLITE_LIMIT_VARIABLE_NUMBER</dt>
** <dd>The maximum number of variables in an SQL statement that can
** be bound.</dd>
................................................................................
#define SQLITE_LIMIT_SQL_LENGTH                1
#define SQLITE_LIMIT_COLUMN                    2
#define SQLITE_LIMIT_EXPR_DEPTH                3
#define SQLITE_LIMIT_COMPOUND_SELECT           4
#define SQLITE_LIMIT_VDBE_OP                   5
#define SQLITE_LIMIT_FUNCTION_ARG              6
#define SQLITE_LIMIT_ATTACHED                  7
#define SQLITE_LIMIT_PAGE_COUNT                8
#define SQLITE_LIMIT_LIKE_PATTERN_LENGTH       9
#define SQLITE_LIMIT_VARIABLE_NUMBER          10

/*
** CAPI3REF: Compiling An SQL Statement {F13010}
**
** To execute an SQL query, it must first be compiled into a byte-code
** program using one of these routines. 
**








|







 







<
<
<







 







<
|
|








26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
....
2241
2242
2243
2244
2245
2246
2247



2248
2249
2250
2251
2252
2253
2254
....
2258
2259
2260
2261
2262
2263
2264

2265
2266
2267
2268
2269
2270
2271
2272
2273

** on how SQLite interfaces are suppose to operate.
**
** The name of this file under configuration management is "sqlite.h.in".
** The makefile makes some minor changes to this file (such as inserting
** the version number) and changes its name to "sqlite3.h" as
** part of the build process.
**
** @(#) $Id: sqlite.h.in,v 1.297 2008/03/20 16:30:18 drh Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
#include <stdarg.h>     /* Needed for the definition of va_list */

/*
** Make sure we can call this stuff from C++.
................................................................................
**
** <dt>SQLITE_LIMIT_FUNCTION_ARG</dt>
** <dd>The maximum number of arguments on a function.</dd>
**
** <dt>SQLITE_LIMIT_ATTACHED</dt>
** <dd>The maximum number of attached databases.</dd>
**



** <dt>SQLITE_LIMIT_LIKE_PATTERN_LENGTH</dt>
** <dd>The maximum length of the pattern argument to the LIKE or
** GLOB operators.</dd>
**
** <dt>SQLITE_LIMIT_VARIABLE_NUMBER</dt>
** <dd>The maximum number of variables in an SQL statement that can
** be bound.</dd>
................................................................................
#define SQLITE_LIMIT_SQL_LENGTH                1
#define SQLITE_LIMIT_COLUMN                    2
#define SQLITE_LIMIT_EXPR_DEPTH                3
#define SQLITE_LIMIT_COMPOUND_SELECT           4
#define SQLITE_LIMIT_VDBE_OP                   5
#define SQLITE_LIMIT_FUNCTION_ARG              6
#define SQLITE_LIMIT_ATTACHED                  7

#define SQLITE_LIMIT_LIKE_PATTERN_LENGTH       8
#define SQLITE_LIMIT_VARIABLE_NUMBER           9

/*
** CAPI3REF: Compiling An SQL Statement {F13010}
**
** To execute an SQL query, it must first be compiled into a byte-code
** program using one of these routines. 
**

Changes to src/sqliteInt.h. 

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
....
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079

**    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.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.677 2008/03/20 14:03:29 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Include the configuration header output by 'configure' if it was run
** (otherwise we get an empty default).
................................................................................
int sqlite3VtabCallCreate(sqlite3*, int, const char *, char **);
int sqlite3VtabCallConnect(Parse*, Table*);
int sqlite3VtabCallDestroy(sqlite3*, int, const char *);
int sqlite3VtabBegin(sqlite3 *, sqlite3_vtab *);
FuncDef *sqlite3VtabOverloadFunction(sqlite3 *,FuncDef*, int nArg, Expr*);
void sqlite3InvalidFunction(sqlite3_context*,int,sqlite3_value**);
int sqlite3Reprepare(Vdbe*);
void sqlite3ExprListCheckLength(Parse*, ExprList*, int, const char*);
CollSeq *sqlite3BinaryCompareCollSeq(Parse *, Expr *, Expr *);


/*
** Available fault injectors.  Should be numbered beginning with 0.
*/
#define SQLITE_FAULTINJECTOR_MALLOC     0








|







 







|








7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
....
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079

**    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.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.678 2008/03/20 16:30:18 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Include the configuration header output by 'configure' if it was run
** (otherwise we get an empty default).
................................................................................
int sqlite3VtabCallCreate(sqlite3*, int, const char *, char **);
int sqlite3VtabCallConnect(Parse*, Table*);
int sqlite3VtabCallDestroy(sqlite3*, int, const char *);
int sqlite3VtabBegin(sqlite3 *, sqlite3_vtab *);
FuncDef *sqlite3VtabOverloadFunction(sqlite3 *,FuncDef*, int nArg, Expr*);
void sqlite3InvalidFunction(sqlite3_context*,int,sqlite3_value**);
int sqlite3Reprepare(Vdbe*);
void sqlite3ExprListCheckLength(Parse*, ExprList*, const char*);
CollSeq *sqlite3BinaryCompareCollSeq(Parse *, Expr *, Expr *);


/*
** Available fault injectors.  Should be numbered beginning with 0.
*/
#define SQLITE_FAULTINJECTOR_MALLOC     0

Changes to src/test1.c. 

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
....
4315
4316
4317
4318
4319
4320
4321
























































4322
4323
4324
4325
4326
4327
4328
....
4452
4453
4454
4455
4456
4457
4458

4459
4460
4461
4462
4463
4464
4465

**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing all sorts of SQLite interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test1.c,v 1.293 2008/03/19 14:15:35 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>

/*
................................................................................
  assert( rc==SQLITE_ERROR );
  rc = sqlite3_file_control(db, "main", -1, &iArg);
  assert( rc==SQLITE_ERROR );
  rc = sqlite3_file_control(db, "temp", -1, &iArg);
  assert( rc==SQLITE_ERROR );
  return TCL_OK;  
}

























































/*
** tclcmd:  save_prng_state
*/
static int save_prng_state(
  ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
................................................................................
     { "sqlite3_soft_heap_limit",       test_soft_heap_limit,    0},
     { "sqlite3_thread_cleanup",        test_thread_cleanup,     0},
     { "sqlite3_pager_refcounts",       test_pager_refcounts,    0},

     { "sqlite3_load_extension",        test_load_extension,     0},
     { "sqlite3_enable_load_extension", test_enable_load,        0},
     { "sqlite3_extended_result_codes", test_extended_result_codes, 0},


     { "save_prng_state",               save_prng_state,    0 },
     { "restore_prng_state",            restore_prng_state, 0 },
     { "reset_prng_state",              reset_prng_state,   0 },

     /* sqlite3_column_*() API */
     { "sqlite3_column_count",          test_column_count  ,0 },








|







 







>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>







 







>








9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
....
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
....
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522

**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing all sorts of SQLite interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test1.c,v 1.294 2008/03/20 16:30:18 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>

/*
................................................................................
  assert( rc==SQLITE_ERROR );
  rc = sqlite3_file_control(db, "main", -1, &iArg);
  assert( rc==SQLITE_ERROR );
  rc = sqlite3_file_control(db, "temp", -1, &iArg);
  assert( rc==SQLITE_ERROR );
  return TCL_OK;  
}

/*
** tclcmd:   sqlite3_limit DB ID VALUE
**
** This TCL command runs the sqlite3_limit interface and
** verifies correct operation of the same.
*/
static int test_limit(
  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;
  int rc;
  static const struct {
     char *zName;
     int id;
  } aId[] = {
    { "SQLITE_LIMIT_LENGTH",              SQLITE_LIMIT_LENGTH               },
    { "SQLITE_LIMIT_SQL_LENGTH",          SQLITE_LIMIT_SQL_LENGTH           },
    { "SQLITE_LIMIT_COLUMN",              SQLITE_LIMIT_COLUMN               },
    { "SQLITE_LIMIT_EXPR_DEPTH",          SQLITE_LIMIT_EXPR_DEPTH           },
    { "SQLITE_LIMIT_COMPOUND_SELECT",     SQLITE_LIMIT_COMPOUND_SELECT      },
    { "SQLITE_LIMIT_VDBE_OP",             SQLITE_LIMIT_VDBE_OP              },
    { "SQLITE_LIMIT_FUNCTION_ARG",        SQLITE_LIMIT_FUNCTION_ARG         },
    { "SQLITE_LIMIT_ATTACHED",            SQLITE_LIMIT_ATTACHED             },
    { "SQLITE_LIMIT_LIKE_PATTERN_LENGTH", SQLITE_LIMIT_LIKE_PATTERN_LENGTH  },
    { "SQLITE_LIMIT_VARIABLE_NUMBER",     SQLITE_LIMIT_VARIABLE_NUMBER      },
  };
  int i, id;
  int val;
  const char *zId;

  if( objc!=4 ){
    Tcl_AppendResult(interp, "wrong # args: should be \"",
        Tcl_GetStringFromObj(objv[0], 0), " DB ID VALUE", 0);
    return TCL_ERROR;
  }
  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
  zId = Tcl_GetString(objv[2]);
  for(i=0; i<sizeof(aId)/sizeof(aId[0]); i++){
    if( strcmp(zId, aId[i].zName)==0 ){
      id = aId[i].id;
      break;
    }
  }
  if( i>=sizeof(aId)/sizeof(aId[0]) ){
    Tcl_AppendResult(interp, "unknown limit type: ", zId, (char*)0);
    return TCL_ERROR;
  }
  if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
  rc = sqlite3_limit(db, id, val);
  Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
  return TCL_OK;  
}

/*
** tclcmd:  save_prng_state
*/
static int save_prng_state(
  ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
................................................................................
     { "sqlite3_soft_heap_limit",       test_soft_heap_limit,    0},
     { "sqlite3_thread_cleanup",        test_thread_cleanup,     0},
     { "sqlite3_pager_refcounts",       test_pager_refcounts,    0},

     { "sqlite3_load_extension",        test_load_extension,     0},
     { "sqlite3_enable_load_extension", test_enable_load,        0},
     { "sqlite3_extended_result_codes", test_extended_result_codes, 0},
     { "sqlite3_limit",                 test_limit,                 0},

     { "save_prng_state",               save_prng_state,    0 },
     { "restore_prng_state",            restore_prng_state, 0 },
     { "reset_prng_state",              reset_prng_state,   0 },

     /* sqlite3_column_*() API */
     { "sqlite3_column_count",          test_column_count  ,0 },

Changes to test/sqllimits1.test. 

8
9
10
11
12
13
14
15
16
17
18
19
20

21



22


23
24


25
26
27











28


29
30
31

32



33
34

35































36

















37
38
39



40
41













42
43



44








45














46





47
48


49


50


51


52








53








54







55























56




57


58
59
60
61






62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
...
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
...
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341


342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
...
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510

511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611


612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648

#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# This file contains tests to verify that the limits defined in
# sqlite source file limits.h are enforced.
#
# $Id: sqllimits1.test,v 1.24 2008/01/31 14:54:44 drh Exp $

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

# Test organization:

#



#     sqllimits1-1.*:  SQLITE_MAX_LENGTH


#     sqllimits1-2.*:  SQLITE_MAX_SQL_LENGTH
#     sqllimits1-3.*:  SQLITE_MAX_PAGE_COUNT (and the max_page_count pragma)


#     sqllimits1-4.*:  SQLITE_MAX_COLUMN
#
#











#     sqllimits1-7.*:   SQLITE_MAX_FUNCTION_ARG  


#     sqllimits1-8.*:   SQLITE_MAX_ATTACHED
#     sqllimits1-9.*:   SQLITE_MAX_VARIABLE_NUMBER
#     sqllimits1-10.*:  SQLITE_MAX_PAGE_SIZE

#     sqllimits1-11.*:  SQLITE_MAX_LIKE_PATTERN_LENGTH



#
# Todo:

#































#     sqllimits1-5.*:   SQLITE_MAX_EXPR_DEPTH            (sqlite todo)

















#     sqllimits1-6.*:   SQLITE_MAX_VDBE_OP               (sqlite todo)
#     sqllimits1-12.*:  SQLITE_MAX_PAGE_COUNT            (sqlite todo)
#




unset -nocomplain saved













foreach var [info vars SQLITE_MAX_*] {
  set saved($var) [set $var]



}























set SQLITE_MAX_LENGTH                 100000





set SQLITE_MAX_COLUMN
set SQLITE_MAX_SQL_LENGTH              50000


set SQLITE_MAX_EXPR_DEPTH               1000


set SQLITE_MAX_COMPOUND_SELECT             5


set SQLITE_MAX_VDBE_OP


set SQLITE_MAX_FUNCTION_ARG








set SQLITE_MAX_VARIABLE_NUMBER








set SQLITE_MAX_PAGE_SIZE







set SQLITE_MAX_PAGE_COUNT























set SQLITE_MAX_LIKE_PATTERN_LENGTH      1000







#--------------------------------------------------------------------
# Test cases sqllimits1-1.* test that the SQLITE_MAX_LENGTH limit
# is enforced.
#






do_test sqllimits1-1.1.1 {
  catchsql { SELECT randomblob(2147483647) }
} {1 {string or blob too big}}
do_test sqllimits1-1.1.2 {
  catchsql { SELECT zeroblob(2147483647) }
} {1 {string or blob too big}}

# Large, but allowable, blob-size.
#
set ::LARGESIZE [expr $SQLITE_MAX_LENGTH - 1] 

do_test sqllimits1-1.2 {
  catchsql { SELECT LENGTH(randomblob($::LARGESIZE)) }
} "0 $::LARGESIZE"

do_test sqllimits1-1.3 {
  catchsql { SELECT quote(randomblob($::LARGESIZE)) }
} {1 {string or blob too big}}

do_test sqllimits1-1.4 {
  catchsql { SELECT LENGTH(zeroblob($::LARGESIZE)) }
} "0 $::LARGESIZE"

do_test sqllimits1-1.5 {
  catchsql { SELECT quote(zeroblob($::LARGESIZE)) }
} {1 {string or blob too big}}

do_test sqllimits1-1.6 {
  catchsql { SELECT zeroblob(-1) }
} {0 {{}}}

do_test sqllimits1-1.9 {
  set ::str [string repeat A 65537]
  set ::rep [string repeat B 65537]
  catchsql { SELECT replace($::str, 'A', $::rep) }
} {1 {string or blob too big}}

do_test sqllimits1-1.10 {
  set ::str [string repeat %J 2100]
  catchsql { SELECT strftime($::str, '2003-10-31') }
} {1 {string or blob too big}}

do_test sqllimits1-1.11 {
  set ::str1 [string repeat A [expr {$SQLITE_MAX_LENGTH - 10}]]
  set ::str2 [string repeat B [expr {$SQLITE_MAX_LENGTH - 10}]]
  catchsql { SELECT $::str1 || $::str2 }
} {1 {string or blob too big}}

do_test sqllimits1-1.12 {
  set ::str1 [string repeat ' [expr {$SQLITE_MAX_LENGTH - 10}]]
  catchsql { SELECT quote($::str1) }
} {1 {string or blob too big}}

do_test sqllimits1-1.13 {
  set ::str1 [string repeat ' [expr {$SQLITE_MAX_LENGTH - 10}]]
  catchsql { SELECT hex($::str1) }
} {1 {string or blob too big}}

do_test sqllimits1-1.14.1 {
  set ::STMT [sqlite3_prepare $::DB "SELECT ?" -1 TAIL]
  sqlite3_bind_zeroblob $::STMT 1 [expr {$SQLITE_MAX_LENGTH + 1}]
} {}
do_test sqllimits1-1.14.2 {
  sqlite3_step $::STMT 
} {SQLITE_ERROR}
do_test sqllimits1-1.14.3 {
  sqlite3_finalize $::STMT 
} {SQLITE_TOOBIG}

do_test sqllimits1-1.15 {
  execsql {
    CREATE TABLE t4(x);
    INSERT INTO t4 VALUES(1);
    INSERT INTO t4 VALUES(2);
    INSERT INTO t4 SELECT 2+x FROM t4;
  }
  catchsql {
    SELECT group_concat(hex(randomblob(20000))) FROM t4;
  }
} {1 {string or blob too big}}
db eval {DROP TABLE t4}

set ::SQLITE_MAX_SQL_LENGTH 0
set strvalue [string repeat A $::SQLITE_MAX_LENGTH]
do_test sqllimits1-1.16 {
  catchsql "SELECT '$strvalue'"
} [list 0 $strvalue]
do_test sqllimits1-1.17 {
  catchsql "SELECT 'A$strvalue'"
} [list 1 {string or blob too big}]
set blobvalue [string repeat 41 $::SQLITE_MAX_LENGTH]
do_test sqllimits1-1.18 {
  catchsql "SELECT x'$blobvalue'"
} [list 0 $strvalue]
do_test sqllimits1-1.19 {
  catchsql "SELECT '41$blobvalue'"
} [list 1 {string or blob too big}]
unset blobvalue

ifcapable datetime {
  set strvalue [string repeat D [expr {$SQLITE_MAX_LENGTH-12}]]
  do_test sqllimits1-1.20 {
    catchsql {SELECT strftime('%Y ' || $::strvalue, '2008-01-02')}
  } [list 0 [list "2008 $strvalue"]]
  do_test sqllimits1-1.21 {
    catchsql {SELECT strftime('%Y-%m-%d ' || $::strvalue, '2008-01-02')}
  } {1 {string or blob too big}}
}
unset strvalue

#--------------------------------------------------------------------
# Test cases sqllimits1-2.* test that the SQLITE_MAX_SQL_LENGTH limit
# is enforced.
#
do_test sqllimits1-2.1 {
  set ::SQLITE_MAX_SQL_LENGTH 50000
  set sql "SELECT 1 WHERE 1==1"
  set tail " /* A comment to take up space in order to make the string\
                longer without increasing the expression depth */\
                AND   1  ==  1"
  set N [expr {($::SQLITE_MAX_SQL_LENGTH / [string length $tail])+1}]
  append sql [string repeat $tail $N]
  catchsql $sql
} {1 {String or BLOB exceeded size limit}}
do_test sqllimits1-2.2 {
  set ::SQLITE_MAX_SQL_LENGTH 0
  catchsql $sql
} {0 1}
do_test sqllimits1-2.3 {
  set ::SQLITE_MAX_SQL_LENGTH 50000
  set sql "SELECT 1 WHERE 1==1"
  set tail " /* A comment to take up space in order to make the string\
                longer without increasing the expression depth */\
                AND   1  ==  1"
  set N [expr {($::SQLITE_MAX_SQL_LENGTH / [string length $tail])+1}]
  append sql [string repeat $tail $N]
  set nbytes [string length $sql]
  append sql { AND 0}
  set rc [catch {sqlite3_prepare $DB $sql $nbytes TAIL} STMT]
  lappend rc $STMT
} {1 {(18) statement too long}}
do_test sqllimits1-2.4 {
  sqlite3_errmsg $DB
} {statement too long}


#--------------------------------------------------------------------
# Test cases sqllimits1-3.* test that the limit set using the
# max_page_count pragma.
#
do_test sqllimits1-3.1 {
  execsql {
    PRAGMA max_page_count = 1000;
  }
} {1000}
do_test sqllimits1-3.2 {
  execsql { CREATE TABLE trig (a INTEGER, b INTEGER); }

  # Set up a tree of triggers to fire when a row is inserted
  # into table "trig".
  #
  # INSERT -> insert_b -> update_b -> insert_a -> update_a      (chain 1)
  #                    -> update_a -> insert_a -> update_b      (chain 2)
................................................................................
    CREATE TRIGGER insert_a AFTER INSERT ON trig
      FOR EACH ROW BEGIN
        UPDATE trig SET a = 1;
      END;
  }
} {}

do_test sqllimits1-3.3 {
  execsql {
    INSERT INTO trig VALUES (1,1); 
  }
} {}

do_test sqllimits1-3.4 {
  execsql {
    SELECT COUNT(*) FROM trig;
  }
} {7}

# This tries to insert so many rows it fills up the database (limited
# to 1MB, so not that noteworthy an achievement).
#
do_test sqllimits1-3.5 {
  catchsql {
    INSERT INTO trig VALUES (1,10);
  }
} {1 {database or disk is full}}

do_test sqllimits1-3.6 {
  catchsql {
    SELECT COUNT(*) FROM trig;
  }
} {0 7}

# Now check the response of the library to opening a file larger than
# the current max_page_count value. The response is to change the
# internal max_page_count value to match the actual size of the file.
if {[db eval {PRAGMA auto_vacuum}]} {
   set fsize 1700
} else {
   set fsize 1691
}
do_test sqllimits1-3.7.1 {
  execsql {
    PRAGMA max_page_count = 1000000;
    CREATE TABLE abc(a, b, c);
    INSERT INTO abc VALUES(1, 2, 3);
    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
................................................................................
    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
    INSERT INTO abc SELECT a, b, c FROM abc;
    INSERT INTO abc SELECT b, a, c FROM abc;
    INSERT INTO abc SELECT c, b, a FROM abc;
  }
  expr [file size test.db] / 1024
} $fsize
do_test sqllimits1-3.7.2 {
  db close
  sqlite3 db test.db
  execsql {
    PRAGMA max_page_count = 1000;
  }
  execsql {
    SELECT count(*) FROM sqlite_master;
  }
} {6}
do_test sqllimits1-3.7.3 {
  execsql {
    PRAGMA max_page_count;
  }
} $fsize
do_test sqllimits1-3.7.4 {
  execsql {
    DROP TABLE abc;
  }
} {}

#--------------------------------------------------------------------
# Test cases sqllimits1-4.* test the SQLITE_MAX_COLUMN limit.
#


do_test sqllimits1-4.1 {
  # Columns in a table.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_MAX_COLUMN} {incr i} {
    lappend cols "c$i"
  }
  catchsql "CREATE TABLE t([join $cols ,])" 
} {1 {too many columns on t}}

do_test sqllimits1-4.2 {
  # Columns in the result-set of a SELECT.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_MAX_COLUMN} {incr i} {
    lappend cols "sql AS sql$i"
  }
  catchsql "SELECT [join $cols ,] FROM sqlite_master"
} {1 {too many columns in result set}}

do_test sqllimits1-4.3 {
  # Columns in the result-set of a sub-SELECT.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_MAX_COLUMN} {incr i} {
    lappend cols "sql AS sql$i"
  }
  catchsql "SELECT sql4 FROM (SELECT [join $cols ,] FROM sqlite_master)"
} {1 {too many columns in result set}}

do_test sqllimits1-4.4 {
  # Columns in an index.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_MAX_COLUMN} {incr i} {
    lappend cols c
  }
  set sql1 "CREATE TABLE t1(c);"
  set sql2 "CREATE INDEX i1 ON t1([join $cols ,]);"
  catchsql "$sql1 ; $sql2"
} {1 {too many columns in index}}

do_test sqllimits1-4.5 {
  # Columns in a GROUP BY clause.
  catchsql "SELECT * FROM t1 GROUP BY [join $cols ,]"
} {1 {too many terms in GROUP BY clause}}

do_test sqllimits1-4.6 {
  # Columns in an ORDER BY clause.
  catchsql "SELECT * FROM t1 ORDER BY [join $cols ,]"
} {1 {too many terms in ORDER BY clause}}

do_test sqllimits1-4.7 {
  # Assignments in an UPDATE statement.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_MAX_COLUMN} {incr i} {
    lappend cols "c = 1"
  }
  catchsql "UPDATE t1 SET [join $cols ,];"
} {1 {too many columns in set list}}

do_test sqllimits1-4.8 {
  # Columns in a view definition:
  set cols [list]
  for {set i 0} {$i <= $SQLITE_MAX_COLUMN} {incr i} {
    lappend cols "c$i"
  }
  catchsql "CREATE VIEW v1 AS SELECT [join $cols ,] FROM t1;"
} {1 {too many columns in result set}}

do_test sqllimits1-4.9 {
  # Columns in a view definition (testing * expansion):
  set cols [list]
  for {set i 0} {$i < $SQLITE_MAX_COLUMN} {incr i} {
    lappend cols "c$i"
  }
  catchsql "CREATE TABLE t2([join $cols ,])"
  catchsql "CREATE VIEW v1 AS SELECT *, c1 AS o FROM t2;"
} {1 {too many columns in result set}}

#--------------------------------------------------------------------
# These tests - sqllimits1-5.* - test that the SQLITE_MAX_EXPR_DEPTH
# limit is enforced. The limit refers to the number of terms in 
# the expression.
#
if {$::SQLITE_MAX_EXPR_DEPTH != 1000} {
  puts -nonewline stderr "WARNING: Compile with -DSQLITE_MAX_EXPR_DEPTH to run "
  puts stderr "tests sqllimits1-5.X"
} else {
  do_test sqllimits1-5.1 {
    set max $::SQLITE_MAX_EXPR_DEPTH
    set expr "(1 [string repeat {AND 1 } $max])"
    catchsql [subst {
      SELECT $expr
    }]
  } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}"
  
  # Attempting to beat the expression depth limit using nested SELECT
  # queries causes a parser stack overflow. 
  do_test sqllimits1-5.2 {
    set max $::SQLITE_MAX_EXPR_DEPTH
    set expr "SELECT 1"
    for {set i 0} {$i <= $max} {incr i} {
      set expr "SELECT ($expr)"
    }
    catchsql [subst { $expr }]
  } "1 {parser stack overflow}"
  
  
  do_test sqllimits1-5.3 {
    execsql {
      PRAGMA max_page_count = 1000000;  -- 1 GB
      CREATE TABLE v0(a);
      INSERT INTO v0 VALUES(1);
    }
    db transaction {
      for {set i 1} {$i < 200} {incr i} {
................................................................................
        execsql [subst {
          CREATE VIEW v${i} AS SELECT $expr FROM v[expr {$i-1}]
        }]
      }
    }
  } {}
  
  do_test sqllimits1-5.4 {
    catchsql {
      SELECT a FROM v199
    }
  } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}"
}

#--------------------------------------------------------------------
# Test cases sqllimits1-6.* test that the SQLITE_MAX_VDBE_OP
# limit works as expected. The limit refers to the number of opcodes
# in a single VDBE program.
#
# TODO

#--------------------------------------------------------------------
# Test the SQLITE_MAX_FUNCTION_ARG limit works. Test case names
# match the pattern "sqllimits1-7.*".
#
do_test sqllimits1-7.1 {
  set max $::SQLITE_MAX_FUNCTION_ARG
  set vals [list]
  for {set i 0} {$i < $SQLITE_MAX_FUNCTION_ARG} {incr i} {
    lappend vals $i
  }
  catchsql "SELECT max([join $vals ,])"
} "0 [expr {$::SQLITE_MAX_FUNCTION_ARG - 1}]"
do_test sqllimits1-7.2 {
  set max $::SQLITE_MAX_FUNCTION_ARG
  set vals [list]
  for {set i 0} {$i <= $SQLITE_MAX_FUNCTION_ARG} {incr i} {
    lappend vals $i
  }
  catchsql "SELECT max([join $vals ,])"
} {1 {too many arguments on function max}}

# Test that it is SQLite, and not the implementation of the
# user function that is throwing the error.
proc myfunc {args} {error "I don't like to be called!"}
do_test sqllimits1-7.2 {
  db function myfunc myfunc
  set max $::SQLITE_MAX_FUNCTION_ARG
  set vals [list]
  for {set i 0} {$i <= $SQLITE_MAX_FUNCTION_ARG} {incr i} {
    lappend vals $i
  }
  catchsql "SELECT myfunc([join $vals ,])"
} {1 {too many arguments on function myfunc}}


#--------------------------------------------------------------------
# Test cases sqllimits1-8.*: Test the SQLITE_MAX_ATTACHED limit.
#
ifcapable attach {
  do_test sqllimits1-8.1 {
    set max $::SQLITE_MAX_ATTACHED
    for {set i 0} {$i < ($max)} {incr i} {
      file delete -force test${i}.db test${i}.db-journal
    }
    for {set i 0} {$i < ($max)} {incr i} {
      execsql "ATTACH 'test${i}.db' AS aux${i}"
    }
    catchsql "ATTACH 'test${i}.db' AS aux${i}"
  } "1 {too many attached databases - max $::SQLITE_MAX_ATTACHED}"
  do_test sqllimits1-8.2 {
    set max $::SQLITE_MAX_ATTACHED
    for {set i 0} {$i < ($max)} {incr i} {
      execsql "DETACH aux${i}"
    }
  } {}
}

#--------------------------------------------------------------------
# Test cases sqllimits1-9.*: Check that the SQLITE_MAX_VARIABLE_NUMBER 
# limit works.
#
do_test sqllimits1-9.1 {
  set max $::SQLITE_MAX_VARIABLE_NUMBER
  catchsql "SELECT ?[expr {$max+1}] FROM t1"
} "1 {variable number must be between ?1 and ?$::SQLITE_MAX_VARIABLE_NUMBER}"
do_test sqllimits1-9.2 {
  set max $::SQLITE_MAX_VARIABLE_NUMBER
  set vals [list]
  for {set i 0} {$i < ($max+3)} {incr i} {
    lappend vals ?
  }
  catchsql "SELECT [join $vals ,] FROM t1"
} "1 {too many SQL variables}"


#--------------------------------------------------------------------
# sqllimits1-10.*:  Test the SQLITE_MAX_PAGE_SIZE define is enforced. 
# This is probably tested elsewhere too (pagerX.test). Attempts
# to raise the page size above this limit are silently ignored.
#
do_test sqllimits1-10.1 {
  db close
  file delete -force test.db test.db-journal
  sqlite3 db test.db
  set max $::SQLITE_MAX_PAGE_SIZE
  catchsql "PRAGMA page_size = [expr {$max*2}]"
} {0 {}}
do_test sqllimits1-10.2 {
  catchsql "PRAGMA page_size"
} {0 1024}
do_test sqllimits1-10.3 {
  set max $::SQLITE_MAX_PAGE_SIZE
  catchsql "PRAGMA page_size = $max"
} {0 {}}
do_test sqllimits1-10.4 {
  execsql "pragma page_size"
} $::SQLITE_MAX_PAGE_SIZE
do_test sqllimits1-10.5 {
  set max $::SQLITE_MAX_PAGE_SIZE
  execsql "pragma page_size = [expr {$max - 5}]"
  execsql "pragma page_size"
} $::SQLITE_MAX_PAGE_SIZE

# Opening a database where the page size is too large should generate
# an error.
#
do_test sqllimits1-10.5 {
  db close
  file delete -force test.db
  set ::SQLITE_MAX_PAGE_SIZE 32768
  sqlite3 db test.db
  db eval {PRAGMA page_size=32768}
  db eval {CREATE TABLE t1(x);}
  db eval {PRAGMA page_size}
} {32768}
do_test sqllimits1-10.6 {
  db close
  set ::SQLITE_MAX_PAGE_SIZE 8192
  sqlite3 db test.db
  catchsql {SELECT name FROM sqlite_master}
} {1 {file is encrypted or is not a database}}
db close
file delete -force test.db
sqlite3 db test.db

#--------------------------------------------------------------------
# Test cases sqllimits1-11.* verify that the 
# SQLITE_MAX_LIKE_PATTERN_LENGTH limit is enforced. This limit only
# applies to the built-in LIKE operator, supplying an external 
# implementation by overriding the like() scalar function bypasses
# this limitation.
#
# These tests check that the limit is not incorrectly applied to
# the left-hand-side of the LIKE operator (the string being tested
# against the pattern).
#


do_test sqllimits1-11.1 {
  set max $::SQLITE_MAX_LIKE_PATTERN_LENGTH
  set ::pattern [string repeat "A%" [expr $max/2]]
  set ::string  [string repeat "A" [expr {$max*2}]]
  execsql {
    SELECT $::string LIKE $::pattern;
  }
} {1}
do_test sqllimits1-11.2 {
  set max $::SQLITE_MAX_LIKE_PATTERN_LENGTH
  set ::pattern [string repeat "A%" [expr {($max/2) + 1}]]
  set ::string  [string repeat "A" [expr {$max*2}]]
  catchsql {
    SELECT $::string LIKE $::pattern;
  }
} {1 {LIKE or GLOB pattern too complex}}

#--------------------------------------------------------------------
# This test case doesn't really belong with the other limits tests.
# It is in this file because it is taxing to run, like the limits tests.
#
do_test sqllimits1-12.1 {
  set ::N [expr int(([expr pow(2,32)]/50) + 1)]
  expr (($::N*50) & 0xffffffff)<55
} {1}
do_test sqllimits1-12.2 {
  set ::format "[string repeat A 60][string repeat "%J" $::N]"
  catchsql {
    SELECT strftime($::format, 1);
  }
} {1 {string or blob too big}}


foreach {key value} [array get saved] {
  catch {set $key $value}
}
finish_test








|




|
>

>
>
>
|
>
>
|
<
>
>
|
<
<
>
>
>
>
>
>
>
>
>
>
>
|
>
>
|
<
|
>
|
>
>
>
|
<
>

>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
|
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
|
<
<
>
>
>
|
<
>
>
>
>
>
>
>
>
>
>
>
>
>
|
<
>
>
>

>
>
>
>
>
>
>
>
|
>
>
>
>
>
>
>
>
>
>
>
>
>
>
|
>
>
>
>
>
|
<
>
>
|
>
>
|
>
>
|
>
>
|
>
>
>
>
>
>
>
>
|
>
>
>
>
>
>
>
>
|
>
>
>
>
>
>
>
|
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
|
>
>
>
>

>
>

|


>
>
>
>
>
>
|


|



<
<
<
<
|

|

|



|

|

|



|



|





|




|
|
|



|
|



|
|



|

|

|


|



|












|
|
|


|


|
|


|





|
|


|






|


|
|




|



|
|


|
|




|






|



<

|


|




|







 







|





|








|





|













|







 







|









|




|






|

>
>
|


|





|


|





|


|





|


|







|




|




|


|





|


|





|


|







|



|

|

|









|









|







 







|







|






|
|

|







|











|









>

|


|









|








|


|



|










<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
|









>
>
|
|






|
|











|



|












8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

30
31
32


33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

48
49
50
51
52
53
54

55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106


107
108
109
110

111
112
113
114
115
116
117
118
119
120
121
122
123
124

125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158

159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244




245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378

379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
...
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
...
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
...
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725


















































726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774

#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# This file contains tests to verify that the limits defined in
# sqlite source file limits.h are enforced.
#
# $Id: sqllimits1.test,v 1.25 2008/03/20 16:30:18 drh Exp $

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

# Verify that the default per-connection limits are the same as
# the compile-time hard limits.
#
sqlite3 db2 :memory:
do_test sqllimits1-1.1 {
  sqlite3_limit db SQLITE_LIMIT_LENGTH -1
} $SQLITE_MAX_LENGTH
do_test sqllimits1-1.2 {
  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
} $SQLITE_MAX_SQL_LENGTH

do_test sqllimits1-1.3 {
  sqlite3_limit db SQLITE_LIMIT_COLUMN -1
} $SQLITE_MAX_COLUMN


do_test sqllimits1-1.4 {
  sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
} $SQLITE_MAX_EXPR_DEPTH
do_test sqllimits1-1.5 {
  sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
} $SQLITE_MAX_COMPOUND_SELECT
do_test sqllimits1-1.6 {
  sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
} $SQLITE_MAX_VDBE_OP
do_test sqllimits1-1.7 {
  sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
} $SQLITE_MAX_FUNCTION_ARG
do_test sqllimits1-1.8 {
  sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
} $SQLITE_MAX_ATTACHED

do_test sqllimits1-1.9 {
  sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
} $SQLITE_MAX_LIKE_PATTERN_LENGTH
do_test sqllimits1-1.10 {
  sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
} $SQLITE_MAX_VARIABLE_NUMBER


# Decrease all limits by half.  Verify that the new limits take.
#
if {$SQLITE_MAX_LENGTH>=2} {
  do_test sqllimits1-2.1.1 {
    sqlite3_limit db SQLITE_LIMIT_LENGTH \
                    [expr {$::SQLITE_MAX_LENGTH/2}]
  } $SQLITE_MAX_LENGTH
  do_test sqllimits1-2.1.2 {
    sqlite3_limit db SQLITE_LIMIT_LENGTH -1
  } [expr {$SQLITE_MAX_LENGTH/2}]
}
if {$SQLITE_MAX_SQL_LENGTH>=2} {
  do_test sqllimits1-2.2.1 {
    sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH \
                    [expr {$::SQLITE_MAX_SQL_LENGTH/2}]
  } $SQLITE_MAX_SQL_LENGTH
  do_test sqllimits1-2.2.2 {
    sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
  } [expr {$SQLITE_MAX_SQL_LENGTH/2}]
}
if {$SQLITE_MAX_COLUMN>=2} {
  do_test sqllimits1-2.3.1 {
    sqlite3_limit db SQLITE_LIMIT_COLUMN \
                    [expr {$::SQLITE_MAX_COLUMN/2}]
  } $SQLITE_MAX_COLUMN
  do_test sqllimits1-2.3.2 {
    sqlite3_limit db SQLITE_LIMIT_COLUMN -1
  } [expr {$SQLITE_MAX_COLUMN/2}]
}
if {$SQLITE_MAX_EXPR_DEPTH>=2} {
  do_test sqllimits1-2.4.1 {
    sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH \
                    [expr {$::SQLITE_MAX_EXPR_DEPTH/2}]
  } $SQLITE_MAX_EXPR_DEPTH
  do_test sqllimits1-2.4.2 {
    sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
  } [expr {$SQLITE_MAX_EXPR_DEPTH/2}]
}
if {$SQLITE_MAX_COMPOUND_SELECT>=2} {
  do_test sqllimits1-2.5.1 {
    sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT \
                    [expr {$::SQLITE_MAX_COMPOUND_SELECT/2}]
  } $SQLITE_MAX_COMPOUND_SELECT
  do_test sqllimits1-2.5.2 {
    sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
  } [expr {$SQLITE_MAX_COMPOUND_SELECT/2}]
}
if {$SQLITE_MAX_VDBE_OP>=2} {
  do_test sqllimits1-2.6.1 {
    sqlite3_limit db SQLITE_LIMIT_VDBE_OP \
                    [expr {$::SQLITE_MAX_VDBE_OP/2}]
  } $SQLITE_MAX_VDBE_OP


  do_test sqllimits1-2.6.2 {
    sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
  } [expr {$SQLITE_MAX_VDBE_OP/2}]
}

if {$SQLITE_MAX_FUNCTION_ARG>=2} {
  do_test sqllimits1-2.7.1 {
    sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG \
                    [expr {$::SQLITE_MAX_FUNCTION_ARG/2}]
  } $SQLITE_MAX_FUNCTION_ARG
  do_test sqllimits1-2.7.2 {
    sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
  } [expr {$SQLITE_MAX_FUNCTION_ARG/2}]
}
if {$SQLITE_MAX_ATTACHED>=2} {
  do_test sqllimits1-2.8.1 {
    sqlite3_limit db SQLITE_LIMIT_ATTACHED \
                    [expr {$::SQLITE_MAX_ATTACHED/2}]
  } $SQLITE_MAX_ATTACHED

  do_test sqllimits1-2.8.2 {
    sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
  } [expr {$SQLITE_MAX_ATTACHED/2}]
}
if {$SQLITE_MAX_LIKE_PATTERN_LENGTH>=2} {
  do_test sqllimits1-2.9.1 {
    sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH \
                    [expr {$::SQLITE_MAX_LIKE_PATTERN_LENGTH/2}]
  } $SQLITE_MAX_LIKE_PATTERN_LENGTH
  do_test sqllimits1-2.9.2 {
    sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
  } [expr {$SQLITE_MAX_LIKE_PATTERN_LENGTH/2}]
}
if {$SQLITE_MAX_VARIABLE_NUMBER>=2} {
  do_test sqllimits1-2.10.1 {
    sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER \
                    [expr {$::SQLITE_MAX_VARIABLE_NUMBER/2}]
  } $SQLITE_MAX_VARIABLE_NUMBER
  do_test sqllimits1-2.10.2 {
    sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
  } [expr {$SQLITE_MAX_VARIABLE_NUMBER/2}]
}

# In a separate database connection, verify that the limits are unchanged.
#
do_test sqllimits1-3.1 {
  sqlite3_limit db2 SQLITE_LIMIT_LENGTH -1
} $SQLITE_MAX_LENGTH
do_test sqllimits1-3.2 {
  sqlite3_limit db2 SQLITE_LIMIT_SQL_LENGTH -1
} $SQLITE_MAX_SQL_LENGTH
do_test sqllimits1-3.3 {
  sqlite3_limit db2 SQLITE_LIMIT_COLUMN -1
} $SQLITE_MAX_COLUMN

do_test sqllimits1-3.4 {
  sqlite3_limit db2 SQLITE_LIMIT_EXPR_DEPTH -1
} $SQLITE_MAX_EXPR_DEPTH
do_test sqllimits1-3.5 {
  sqlite3_limit db2 SQLITE_LIMIT_COMPOUND_SELECT -1
} $SQLITE_MAX_COMPOUND_SELECT
do_test sqllimits1-3.6 {
  sqlite3_limit db2 SQLITE_LIMIT_VDBE_OP -1
} $SQLITE_MAX_VDBE_OP
do_test sqllimits1-3.7 {
  sqlite3_limit db2 SQLITE_LIMIT_FUNCTION_ARG -1
} $SQLITE_MAX_FUNCTION_ARG
do_test sqllimits1-3.8 {
  sqlite3_limit db2 SQLITE_LIMIT_ATTACHED -1
} $SQLITE_MAX_ATTACHED
do_test sqllimits1-3.9 {
  sqlite3_limit db2 SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
} $SQLITE_MAX_LIKE_PATTERN_LENGTH
do_test sqllimits1-3.10 {
  sqlite3_limit db2 SQLITE_LIMIT_VARIABLE_NUMBER -1
} $SQLITE_MAX_VARIABLE_NUMBER
db2 close

# Attempt to set all limits to the maximum 32-bit integer.  Verify
# that the limit does not exceed the compile-time upper bound.
#
do_test sqllimits1-4.1.1 {
  sqlite3_limit db SQLITE_LIMIT_LENGTH 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_LENGTH -1
} $SQLITE_MAX_LENGTH
do_test sqllimits1-4.2.1 {
  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH -1
} $SQLITE_MAX_SQL_LENGTH
do_test sqllimits1-4.3.1 {
  sqlite3_limit db SQLITE_LIMIT_COLUMN 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_COLUMN -1
} $SQLITE_MAX_COLUMN
do_test sqllimits1-4.4.1 {
  sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_EXPR_DEPTH -1
} $SQLITE_MAX_EXPR_DEPTH
do_test sqllimits1-4.5.1 {
  sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_COMPOUND_SELECT -1
} $SQLITE_MAX_COMPOUND_SELECT
do_test sqllimits1-4.6.1 {
  sqlite3_limit db SQLITE_LIMIT_VDBE_OP 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_VDBE_OP -1
} $SQLITE_MAX_VDBE_OP
do_test sqllimits1-4.7.1 {
  sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_FUNCTION_ARG -1
} $SQLITE_MAX_FUNCTION_ARG
do_test sqllimits1-4.8.1 {
  sqlite3_limit db SQLITE_LIMIT_ATTACHED 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
} $SQLITE_MAX_ATTACHED
do_test sqllimits1-4.9.1 {
  sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH -1
} $SQLITE_MAX_LIKE_PATTERN_LENGTH
do_test sqllimits1-4.10.1 {
  sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER 0x7fffffff
  sqlite3_limit db SQLITE_LIMIT_VARIABLE_NUMBER -1
} $SQLITE_MAX_VARIABLE_NUMBER



#--------------------------------------------------------------------
# Test cases sqllimits1-5.* test that the SQLITE_MAX_LENGTH limit
# is enforced.
#
db close
sqlite3 db test.db
set LARGESIZE 99999
set SQLITE_LIMIT_LENGTH 100000
sqlite3_limit db SQLITE_LIMIT_LENGTH $SQLITE_LIMIT_LENGTH

do_test sqllimits1-5.1.1 {
  catchsql { SELECT randomblob(2147483647) }
} {1 {string or blob too big}}
do_test sqllimits1-5.1.2 {
  catchsql { SELECT zeroblob(2147483647) }
} {1 {string or blob too big}}





do_test sqllimits1-5.2 {
  catchsql { SELECT LENGTH(randomblob($::LARGESIZE)) }
} [list 0 $LARGESIZE]

do_test sqllimits1-5.3 {
  catchsql { SELECT quote(randomblob($::LARGESIZE)) }
} {1 {string or blob too big}}

do_test sqllimits1-5.4 {
  catchsql { SELECT LENGTH(zeroblob($::LARGESIZE)) }
} [list 0 $LARGESIZE]

do_test sqllimits1-5.5 {
  catchsql { SELECT quote(zeroblob($::LARGESIZE)) }
} {1 {string or blob too big}}

do_test sqllimits1-5.6 {
  catchsql { SELECT zeroblob(-1) }
} {0 {{}}}

do_test sqllimits1-5.9 {
  set ::str [string repeat A 65537]
  set ::rep [string repeat B 65537]
  catchsql { SELECT replace($::str, 'A', $::rep) }
} {1 {string or blob too big}}

do_test sqllimits1-5.10 {
  set ::str [string repeat %J 2100]
  catchsql { SELECT strftime($::str, '2003-10-31') }
} {1 {string or blob too big}}

do_test sqllimits1-5.11 {
  set ::str1 [string repeat A [expr {$SQLITE_LIMIT_LENGTH - 10}]]
  set ::str2 [string repeat B [expr {$SQLITE_LIMIT_LENGTH - 10}]]
  catchsql { SELECT $::str1 || $::str2 }
} {1 {string or blob too big}}

do_test sqllimits1-5.12 {
  set ::str1 [string repeat ' [expr {$SQLITE_LIMIT_LENGTH - 10}]]
  catchsql { SELECT quote($::str1) }
} {1 {string or blob too big}}

do_test sqllimits1-5.13 {
  set ::str1 [string repeat ' [expr {$SQLITE_LIMIT_LENGTH - 10}]]
  catchsql { SELECT hex($::str1) }
} {1 {string or blob too big}}

do_test sqllimits1-5.14.1 {
  set ::STMT [sqlite3_prepare $::DB "SELECT ?" -1 TAIL]
  sqlite3_bind_zeroblob $::STMT 1 [expr {$SQLITE_LIMIT_LENGTH + 1}]
} {}
do_test sqllimits1-5.14.2 {
  sqlite3_step $::STMT 
} {SQLITE_ERROR}
do_test sqllimits1-5.14.3 {
  sqlite3_finalize $::STMT 
} {SQLITE_TOOBIG}

do_test sqllimits1-5.15 {
  execsql {
    CREATE TABLE t4(x);
    INSERT INTO t4 VALUES(1);
    INSERT INTO t4 VALUES(2);
    INSERT INTO t4 SELECT 2+x FROM t4;
  }
  catchsql {
    SELECT group_concat(hex(randomblob(20000))) FROM t4;
  }
} {1 {string or blob too big}}
db eval {DROP TABLE t4}

sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0x7fffffff
set strvalue [string repeat A $::SQLITE_LIMIT_LENGTH]
do_test sqllimits1-5.16 {
  catchsql "SELECT '$strvalue'"
} [list 0 $strvalue]
do_test sqllimits1-5.17 {
  catchsql "SELECT 'A$strvalue'"
} [list 1 {string or blob too big}]
set blobvalue [string repeat 41 $::SQLITE_LIMIT_LENGTH]
do_test sqllimits1-5.18 {
  catchsql "SELECT x'$blobvalue'"
} [list 0 $strvalue]
do_test sqllimits1-5.19 {
  catchsql "SELECT '41$blobvalue'"
} [list 1 {string or blob too big}]
unset blobvalue

ifcapable datetime {
  set strvalue [string repeat D [expr {$SQLITE_LIMIT_LENGTH-12}]]
  do_test sqllimits1-5.20 {
    catchsql {SELECT strftime('%Y ' || $::strvalue, '2008-01-02')}
  } [list 0 [list "2008 $strvalue"]]
  do_test sqllimits1-5.21 {
    catchsql {SELECT strftime('%Y-%m-%d ' || $::strvalue, '2008-01-02')}
  } {1 {string or blob too big}}
}
unset strvalue

#--------------------------------------------------------------------
# Test cases sqllimits1-6.* test that the SQLITE_MAX_SQL_LENGTH limit
# is enforced.
#
do_test sqllimits1-6.1 {
  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000
  set sql "SELECT 1 WHERE 1==1"
  set tail " /* A comment to take up space in order to make the string\
                longer without increasing the expression depth */\
                AND   1  ==  1"
  set N [expr {(50000 / [string length $tail])+1}]
  append sql [string repeat $tail $N]
  catchsql $sql
} {1 {String or BLOB exceeded size limit}}
do_test sqllimits1-6.2 {
  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 0
  catchsql $sql
} {0 1}
do_test sqllimits1-6.3 {
  sqlite3_limit db SQLITE_LIMIT_SQL_LENGTH 50000
  set sql "SELECT 1 WHERE 1==1"
  set tail " /* A comment to take up space in order to make the string\
                longer without increasing the expression depth */\
                AND   1  ==  1"
  set N [expr {(50000 / [string length $tail])+1}]
  append sql [string repeat $tail $N]
  set nbytes [string length $sql]
  append sql { AND 0}
  set rc [catch {sqlite3_prepare $DB $sql $nbytes TAIL} STMT]
  lappend rc $STMT
} {1 {(18) statement too long}}
do_test sqllimits1-6.4 {
  sqlite3_errmsg $DB
} {statement too long}


#--------------------------------------------------------------------
# Test cases sqllimits1-7.* test that the limit set using the
# max_page_count pragma.
#
do_test sqllimits1-7.1 {
  execsql {
    PRAGMA max_page_count = 1000;
  }
} {1000}
do_test sqllimits1-7.2 {
  execsql { CREATE TABLE trig (a INTEGER, b INTEGER); }

  # Set up a tree of triggers to fire when a row is inserted
  # into table "trig".
  #
  # INSERT -> insert_b -> update_b -> insert_a -> update_a      (chain 1)
  #                    -> update_a -> insert_a -> update_b      (chain 2)
................................................................................
    CREATE TRIGGER insert_a AFTER INSERT ON trig
      FOR EACH ROW BEGIN
        UPDATE trig SET a = 1;
      END;
  }
} {}

do_test sqllimits1-7.3 {
  execsql {
    INSERT INTO trig VALUES (1,1); 
  }
} {}

do_test sqllimits1-7.4 {
  execsql {
    SELECT COUNT(*) FROM trig;
  }
} {7}

# This tries to insert so many rows it fills up the database (limited
# to 1MB, so not that noteworthy an achievement).
#
do_test sqllimits1-7.5 {
  catchsql {
    INSERT INTO trig VALUES (1,10);
  }
} {1 {database or disk is full}}

do_test sqllimits1-7.6 {
  catchsql {
    SELECT COUNT(*) FROM trig;
  }
} {0 7}

# Now check the response of the library to opening a file larger than
# the current max_page_count value. The response is to change the
# internal max_page_count value to match the actual size of the file.
if {[db eval {PRAGMA auto_vacuum}]} {
   set fsize 1700
} else {
   set fsize 1691
}
do_test sqllimits1-7.7.1 {
  execsql {
    PRAGMA max_page_count = 1000000;
    CREATE TABLE abc(a, b, c);
    INSERT INTO abc VALUES(1, 2, 3);
    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
................................................................................
    INSERT INTO abc SELECT a||b||c, b||c||a, c||a||b FROM abc;
    INSERT INTO abc SELECT a, b, c FROM abc;
    INSERT INTO abc SELECT b, a, c FROM abc;
    INSERT INTO abc SELECT c, b, a FROM abc;
  }
  expr [file size test.db] / 1024
} $fsize
do_test sqllimits1-7.7.2 {
  db close
  sqlite3 db test.db
  execsql {
    PRAGMA max_page_count = 1000;
  }
  execsql {
    SELECT count(*) FROM sqlite_master;
  }
} {6}
do_test sqllimits1-7.7.3 {
  execsql {
    PRAGMA max_page_count;
  }
} $fsize
do_test sqllimits1-7.7.4 {
  execsql {
    DROP TABLE abc;
  }
} {}

#--------------------------------------------------------------------
# Test cases sqllimits1-8.* test the SQLITE_MAX_COLUMN limit.
#
set SQLITE_LIMIT_COLUMN 200
sqlite3_limit db SQLITE_LIMIT_COLUMN $SQLITE_LIMIT_COLUMN
do_test sqllimits1-8.1 {
  # Columns in a table.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols "c$i"
  }
  catchsql "CREATE TABLE t([join $cols ,])" 
} {1 {too many columns on t}}

do_test sqllimits1-8.2 {
  # Columns in the result-set of a SELECT.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols "sql AS sql$i"
  }
  catchsql "SELECT [join $cols ,] FROM sqlite_master"
} {1 {too many columns in result set}}

do_test sqllimits1-8.3 {
  # Columns in the result-set of a sub-SELECT.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols "sql AS sql$i"
  }
  catchsql "SELECT sql4 FROM (SELECT [join $cols ,] FROM sqlite_master)"
} {1 {too many columns in result set}}

do_test sqllimits1-8.4 {
  # Columns in an index.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols c
  }
  set sql1 "CREATE TABLE t1(c);"
  set sql2 "CREATE INDEX i1 ON t1([join $cols ,]);"
  catchsql "$sql1 ; $sql2"
} {1 {too many columns in index}}

do_test sqllimits1-8.5 {
  # Columns in a GROUP BY clause.
  catchsql "SELECT * FROM t1 GROUP BY [join $cols ,]"
} {1 {too many terms in GROUP BY clause}}

do_test sqllimits1-8.6 {
  # Columns in an ORDER BY clause.
  catchsql "SELECT * FROM t1 ORDER BY [join $cols ,]"
} {1 {too many terms in ORDER BY clause}}

do_test sqllimits1-8.7 {
  # Assignments in an UPDATE statement.
  set cols [list]
  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols "c = 1"
  }
  catchsql "UPDATE t1 SET [join $cols ,];"
} {1 {too many columns in set list}}

do_test sqllimits1-8.8 {
  # Columns in a view definition:
  set cols [list]
  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols "c$i"
  }
  catchsql "CREATE VIEW v1 AS SELECT [join $cols ,] FROM t1;"
} {1 {too many columns in result set}}

do_test sqllimits1-8.9 {
  # Columns in a view definition (testing * expansion):
  set cols [list]
  for {set i 0} {$i < $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols "c$i"
  }
  catchsql "CREATE TABLE t2([join $cols ,])"
  catchsql "CREATE VIEW v1 AS SELECT *, c1 AS o FROM t2;"
} {1 {too many columns in result set}}

#--------------------------------------------------------------------
# These tests - sqllimits1-9.* - test that the SQLITE_LIMIT_EXPR_DEPTH
# limit is enforced. The limit refers to the number of terms in 
# the expression.
#
if {$SQLITE_MAX_EXPR_DEPTH==0} {
  puts -nonewline stderr "WARNING: Compile with -DSQLITE_MAX_EXPR_DEPTH to run "
  puts stderr "tests sqllimits1-9.X"
} else {
  do_test sqllimits1-9.1 {
    set max $::SQLITE_MAX_EXPR_DEPTH
    set expr "(1 [string repeat {AND 1 } $max])"
    catchsql [subst {
      SELECT $expr
    }]
  } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}"
  
  # Attempting to beat the expression depth limit using nested SELECT
  # queries causes a parser stack overflow. 
  do_test sqllimits1-9.2 {
    set max $::SQLITE_MAX_EXPR_DEPTH
    set expr "SELECT 1"
    for {set i 0} {$i <= $max} {incr i} {
      set expr "SELECT ($expr)"
    }
    catchsql [subst { $expr }]
  } "1 {parser stack overflow}"
  
  
  do_test sqllimits1-9.3 {
    execsql {
      PRAGMA max_page_count = 1000000;  -- 1 GB
      CREATE TABLE v0(a);
      INSERT INTO v0 VALUES(1);
    }
    db transaction {
      for {set i 1} {$i < 200} {incr i} {
................................................................................
        execsql [subst {
          CREATE VIEW v${i} AS SELECT $expr FROM v[expr {$i-1}]
        }]
      }
    }
  } {}
  
  do_test sqllimits1-9.4 {
    catchsql {
      SELECT a FROM v199
    }
  } "1 {Expression tree is too large (maximum depth $::SQLITE_MAX_EXPR_DEPTH)}"
}

#--------------------------------------------------------------------
# Test cases sqllimits1-10.* test that the SQLITE_MAX_VDBE_OP
# limit works as expected. The limit refers to the number of opcodes
# in a single VDBE program.
#
# TODO

#--------------------------------------------------------------------
# Test the SQLITE_LIMIT_FUNCTION_ARG limit works. Test case names
# match the pattern "sqllimits1-11.*".
#
do_test sqllimits1-11.1 {
  set max $::SQLITE_MAX_FUNCTION_ARG
  set vals [list]
  for {set i 0} {$i < $SQLITE_MAX_FUNCTION_ARG} {incr i} {
    lappend vals $i
  }
  catchsql "SELECT max([join $vals ,])"
} "0 [expr {$::SQLITE_MAX_FUNCTION_ARG - 1}]"
do_test sqllimits1-11.2 {
  set max $::SQLITE_MAX_FUNCTION_ARG
  set vals [list]
  for {set i 0} {$i <= $SQLITE_MAX_FUNCTION_ARG} {incr i} {
    lappend vals $i
  }
  catchsql "SELECT max([join $vals ,])"
} {1 {too many arguments on function max}}

# Test that it is SQLite, and not the implementation of the
# user function that is throwing the error.
proc myfunc {args} {error "I don't like to be called!"}
do_test sqllimits1-11.2 {
  db function myfunc myfunc
  set max $::SQLITE_MAX_FUNCTION_ARG
  set vals [list]
  for {set i 0} {$i <= $SQLITE_MAX_FUNCTION_ARG} {incr i} {
    lappend vals $i
  }
  catchsql "SELECT myfunc([join $vals ,])"
} {1 {too many arguments on function myfunc}}


#--------------------------------------------------------------------
# Test cases sqllimits1-12.*: Test the SQLITE_MAX_ATTACHED limit.
#
ifcapable attach {
  do_test sqllimits1-12.1 {
    set max $::SQLITE_MAX_ATTACHED
    for {set i 0} {$i < ($max)} {incr i} {
      file delete -force test${i}.db test${i}.db-journal
    }
    for {set i 0} {$i < ($max)} {incr i} {
      execsql "ATTACH 'test${i}.db' AS aux${i}"
    }
    catchsql "ATTACH 'test${i}.db' AS aux${i}"
  } "1 {too many attached databases - max $::SQLITE_MAX_ATTACHED}"
  do_test sqllimits1-12.2 {
    set max $::SQLITE_MAX_ATTACHED
    for {set i 0} {$i < ($max)} {incr i} {
      execsql "DETACH aux${i}"
    }
  } {}
}

#--------------------------------------------------------------------
# Test cases sqllimits1-13.*: Check that the SQLITE_MAX_VARIABLE_NUMBER 
# limit works.
#
do_test sqllimits1-13.1 {
  set max $::SQLITE_MAX_VARIABLE_NUMBER
  catchsql "SELECT ?[expr {$max+1}] FROM t1"
} "1 {variable number must be between ?1 and ?$::SQLITE_MAX_VARIABLE_NUMBER}"
do_test sqllimits1-13.2 {
  set max $::SQLITE_MAX_VARIABLE_NUMBER
  set vals [list]
  for {set i 0} {$i < ($max+3)} {incr i} {
    lappend vals ?
  }
  catchsql "SELECT [join $vals ,] FROM t1"
} "1 {too many SQL variables}"


#--------------------------------------------------------------------


















































# Test cases sqllimits1-15.* verify that the 
# SQLITE_MAX_LIKE_PATTERN_LENGTH limit is enforced. This limit only
# applies to the built-in LIKE operator, supplying an external 
# implementation by overriding the like() scalar function bypasses
# this limitation.
#
# These tests check that the limit is not incorrectly applied to
# the left-hand-side of the LIKE operator (the string being tested
# against the pattern).
#
set SQLITE_LIMIT_LIKE_PATTERN 1000
sqlite3_limit db SQLITE_LIMIT_LIKE_PATTERN_LENGTH $SQLITE_LIMIT_LIKE_PATTERN
do_test sqllimits1-15.1 {
  set max $::SQLITE_LIMIT_LIKE_PATTERN
  set ::pattern [string repeat "A%" [expr $max/2]]
  set ::string  [string repeat "A" [expr {$max*2}]]
  execsql {
    SELECT $::string LIKE $::pattern;
  }
} {1}
do_test sqllimits1-15.2 {
  set max $::SQLITE_LIMIT_LIKE_PATTERN
  set ::pattern [string repeat "A%" [expr {($max/2) + 1}]]
  set ::string  [string repeat "A" [expr {$max*2}]]
  catchsql {
    SELECT $::string LIKE $::pattern;
  }
} {1 {LIKE or GLOB pattern too complex}}

#--------------------------------------------------------------------
# This test case doesn't really belong with the other limits tests.
# It is in this file because it is taxing to run, like the limits tests.
#
do_test sqllimits1-16.1 {
  set ::N [expr int(([expr pow(2,32)]/50) + 1)]
  expr (($::N*50) & 0xffffffff)<55
} {1}
do_test sqllimits1-16.2 {
  set ::format "[string repeat A 60][string repeat "%J" $::N]"
  catchsql {
    SELECT strftime($::format, 1);
  }
} {1 {string or blob too big}}


foreach {key value} [array get saved] {
  catch {set $key $value}
}
finish_test

This page was generated in about 0.12s by Fossil 2.10 [488af3639e] 2019-07-22 16:12:52