/ Check-in [24263d08]
Login
SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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

Overview
Comment:Add testcase() macros and comments and a few test-cases.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | index-is-operator
Files: files | file ages | folders
SHA1: 24263d08b11c88416d270013bdaf5ff45125cb4d
User & Date: drh 2015-05-13 17:54:08
Context
2015-05-13
19:33
Simplified implementation of indexing with the IS operator. check-in: 95b1f9bf user: drh tags: index-is-operator
17:54
Add testcase() macros and comments and a few test-cases. check-in: 24263d08 user: drh tags: index-is-operator
15:24
An early attempt to get indexes to work with the IS operator. This code passes tests, but much more testing is needed to verify that it works on all corner cases. check-in: 6f7f1673 user: drh tags: index-is-operator
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/where.c.

413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
....
1113
1114
1115
1116
1117
1118
1119

1120
1121
1122
1123
1124
1125
1126
....
1149
1150
1151
1152
1153
1154
1155

1156
1157
1158
1159
1160
1161
1162
....
1679
1680
1681
1682
1683
1684
1685

1686
1687
1688
1689
1690
1691
1692
....
2976
2977
2978
2979
2980
2981
2982

2983
2984
2985
2986
2987
2988
2989
....
3627
3628
3629
3630
3631
3632
3633

3634
3635
3636
3637
3638
3639
3640
....
3673
3674
3675
3676
3677
3678
3679

3680
3681
3682
3683
3684
3685
3686
....
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
....
4654
4655
4656
4657
4658
4659
4660

4661
4662
4663
4664
4665
4666
4667
....
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
....
5703
5704
5705
5706
5707
5708
5709

5710
5711
5712
5713
5714
5715
5716
....
6325
6326
6327
6328
6329
6330
6331

6332
6333
6334
6335
6336
6337
6338
  u16 c;
  assert( allowedOp(op) );
  if( op==TK_IN ){
    c = WO_IN;
  }else if( op==TK_ISNULL ){
    c = WO_ISNULL;
  }else if( op==TK_IS ){
    c = WO_EQ;
  }else{
    assert( (WO_EQ<<(op-TK_EQ)) < 0x7fff );
    c = (u16)(WO_EQ<<(op-TK_EQ));
  }
  assert( op!=TK_ISNULL || c==WO_ISNULL );
  assert( op!=TK_IN || c==WO_IN );
  assert( op!=TK_EQ || c==WO_EQ );
................................................................................
      testcase( j==1 );

      /* We have found a candidate table and column.  Check to see if that
      ** table and column is common to every term in the OR clause */
      okToChngToIN = 1;
      for(; i>=0 && okToChngToIN; i--, pOrTerm++){
        assert( pOrTerm->eOperator & WO_EQ );

        if( pOrTerm->leftCursor!=iCursor ){
          pOrTerm->wtFlags &= ~TERM_OR_OK;
        }else if( pOrTerm->u.leftColumn!=iColumn ){
          okToChngToIN = 0;
        }else{
          int affLeft, affRight;
          /* If the right-hand side is also a column, then the affinities
................................................................................
      Expr *pNew;            /* The complete IN operator */

      for(i=pOrWc->nTerm-1, pOrTerm=pOrWc->a; i>=0; i--, pOrTerm++){
        if( (pOrTerm->wtFlags & TERM_OR_OK)==0 ) continue;
        assert( pOrTerm->eOperator & WO_EQ );
        assert( pOrTerm->leftCursor==iCursor );
        assert( pOrTerm->u.leftColumn==iColumn );

        pDup = sqlite3ExprDup(db, pOrTerm->pExpr->pRight, 0);
        pList = sqlite3ExprListAppend(pWInfo->pParse, pList, pDup);
        pLeft = pOrTerm->pExpr->pLeft;
      }
      assert( pLeft!=0 );
      pDup = sqlite3ExprDup(db, pLeft, 0);
      pNew = sqlite3PExpr(pParse, TK_IN, pDup, 0, 0);
................................................................................
  char aff;
  if( pTerm->leftCursor!=pSrc->iCursor ) return 0;
  if( (pTerm->eOperator & WO_EQ)==0 ) return 0;
  if( (pTerm->prereqRight & notReady)!=0 ) return 0;
  if( pTerm->u.leftColumn<0 ) return 0;
  aff = pSrc->pTab->aCol[pTerm->u.leftColumn].affinity;
  if( !sqlite3IndexAffinityOk(pTerm->pExpr, aff) ) return 0;

  return 1;
}
#endif


#ifndef SQLITE_OMIT_AUTOMATIC_INDEX
/*
................................................................................
        sqlite3VdbeAddOp2(v, OP_SCopy, r1, regBase+j);
      }
    }
    testcase( pTerm->eOperator & WO_ISNULL );
    testcase( pTerm->eOperator & WO_IN );
    if( (pTerm->eOperator & (WO_ISNULL|WO_IN))==0 ){
      Expr *pRight = pTerm->pExpr->pRight;

      if( (pTerm->wtFlags & TERM_NULLOK)==0
       && sqlite3ExprCanBeNull(pRight)
      ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+j, pLevel->addrBrk);
        VdbeCoverage(v);
      }
      if( zAff ){
................................................................................

    /* Seek the index cursor to the start of the range. */
    nConstraint = nEq;
    if( pRangeStart ){
      Expr *pRight = pRangeStart->pExpr->pRight;
      sqlite3ExprCode(pParse, pRight, regBase+nEq);
      whereLikeOptimizationStringFixup(v, pLevel, pRangeStart);

      if( (pRangeStart->wtFlags & TERM_NULLOK)==0
       && sqlite3ExprCanBeNull(pRight)
      ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt);
        VdbeCoverage(v);
      }
      if( zStartAff ){
................................................................................
    */
    nConstraint = nEq;
    if( pRangeEnd ){
      Expr *pRight = pRangeEnd->pExpr->pRight;
      sqlite3ExprCacheRemove(pParse, regBase+nEq, 1);
      sqlite3ExprCode(pParse, pRight, regBase+nEq);
      whereLikeOptimizationStringFixup(v, pLevel, pRangeEnd);

      if( (pRangeEnd->wtFlags & TERM_NULLOK)==0
       && sqlite3ExprCanBeNull(pRight)
      ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt);
        VdbeCoverage(v);
      }
      if( sqlite3CompareAffinity(pRight, cEndAff)!=SQLITE_AFF_NONE
................................................................................
    if( pLevel->iLeftJoin ) continue;
    pE = pTerm->pExpr;
    assert( !ExprHasProperty(pE, EP_FromJoin) );
    assert( (pTerm->prereqRight & pLevel->notReady)!=0 );
    pAlt = findTerm(pWC, iCur, pTerm->u.leftColumn, notReady, WO_EQ|WO_IN, 0);
    if( pAlt==0 ) continue;
    if( pAlt->wtFlags & (TERM_CODED) ) continue;
    testcase( pAlt->eOperator & WO_EQ );
    testcase( pAlt->eOperator & WO_IN );
    VdbeModuleComment((v, "begin transitive constraint"));
    pEAlt = sqlite3StackAllocRaw(db, sizeof(*pEAlt));
    if( pEAlt ){
      *pEAlt = *pAlt->pExpr;
      pEAlt->pLeft = pE->pLeft;
      sqlite3ExprIfFalse(pParse, pEAlt, addrCont, SQLITE_JUMPIFNULL);
................................................................................
        pLoop->nOut += pTerm->truthProb;
      }else{
        /* In the absence of explicit truth probabilities, use heuristics to
        ** guess a reasonable truth probability. */
        pLoop->nOut--;
        if( pTerm->eOperator&WO_EQ ){
          Expr *pRight = pTerm->pExpr->pRight;

          if( sqlite3ExprIsInteger(pRight, &k) && k>=(-1) && k<=1 ){
            k = 10;
          }else{
            k = 20;
          }
          if( iReduce<k ) iReduce = k;
        }
................................................................................
        if( nInMul==0 
         && pProbe->nSample 
         && pNew->u.btree.nEq<=pProbe->nSampleCol
         && ((eOp & WO_IN)==0 || !ExprHasProperty(pTerm->pExpr, EP_xIsSelect))
        ){
          Expr *pExpr = pTerm->pExpr;
          if( (eOp & (WO_EQ|WO_ISNULL))!=0 ){
            testcase( eOp & WO_EQ );
            testcase( eOp & WO_ISNULL );
            rc = whereEqualScanEst(pParse, pBuilder, pExpr->pRight, &nOut);
          }else{
            rc = whereInScanEst(pParse, pBuilder, pExpr->x.pList, &nOut);
          }
          if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
          if( rc!=SQLITE_OK ) break;          /* Jump out of the pTerm loop */
................................................................................
        pColl = sqlite3ExprCollSeq(pWInfo->pParse, pOrderBy->a[i].pExpr);
        if( !pColl ) pColl = db->pDfltColl;
        z1 = pColl->zName;
        pColl = sqlite3ExprCollSeq(pWInfo->pParse, pTerm->pExpr);
        if( !pColl ) pColl = db->pDfltColl;
        z2 = pColl->zName;
        if( sqlite3StrICmp(z1, z2)!=0 ) continue;

      }
      obSat |= MASKBIT(i);
    }

    if( (pLoop->wsFlags & WHERE_ONEROW)==0 ){
      if( pLoop->wsFlags & WHERE_IPK ){
        pIndex = 0;
................................................................................
       || pIdx->pPartIdxWhere!=0 
       || pIdx->nKeyCol>ArraySize(pLoop->aLTermSpace) 
      ) continue;
      for(j=0; j<pIdx->nKeyCol; j++){
        pTerm = findTerm(pWC, iCur, pIdx->aiColumn[j], 0, WO_EQ, pIdx);
        if( pTerm==0 ) break;
        pLoop->aLTerm[j] = pTerm;

      }
      if( j!=pIdx->nKeyCol ) continue;
      pLoop->wsFlags = WHERE_COLUMN_EQ|WHERE_ONEROW|WHERE_INDEXED;
      if( pIdx->isCovering || (pItem->colUsed & ~columnsInIndex(pIdx))==0 ){
        pLoop->wsFlags |= WHERE_IDX_ONLY;
      }
      pLoop->nLTerm = j;







|







 







>







 







>







 







>







 







>







 







>







 







>







 







|







 







>







 







|







 







>







 







>







413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
....
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
....
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
....
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
....
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
....
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
....
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
....
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
....
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
....
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
....
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
....
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
  u16 c;
  assert( allowedOp(op) );
  if( op==TK_IN ){
    c = WO_IN;
  }else if( op==TK_ISNULL ){
    c = WO_ISNULL;
  }else if( op==TK_IS ){
    c = WO_EQ;  /* IS works like ==, just without the IsNull tests */
  }else{
    assert( (WO_EQ<<(op-TK_EQ)) < 0x7fff );
    c = (u16)(WO_EQ<<(op-TK_EQ));
  }
  assert( op!=TK_ISNULL || c==WO_ISNULL );
  assert( op!=TK_IN || c==WO_IN );
  assert( op!=TK_EQ || c==WO_EQ );
................................................................................
      testcase( j==1 );

      /* We have found a candidate table and column.  Check to see if that
      ** table and column is common to every term in the OR clause */
      okToChngToIN = 1;
      for(; i>=0 && okToChngToIN; i--, pOrTerm++){
        assert( pOrTerm->eOperator & WO_EQ );
        testcase( pOrTerm->pExpr->op==TK_IS );
        if( pOrTerm->leftCursor!=iCursor ){
          pOrTerm->wtFlags &= ~TERM_OR_OK;
        }else if( pOrTerm->u.leftColumn!=iColumn ){
          okToChngToIN = 0;
        }else{
          int affLeft, affRight;
          /* If the right-hand side is also a column, then the affinities
................................................................................
      Expr *pNew;            /* The complete IN operator */

      for(i=pOrWc->nTerm-1, pOrTerm=pOrWc->a; i>=0; i--, pOrTerm++){
        if( (pOrTerm->wtFlags & TERM_OR_OK)==0 ) continue;
        assert( pOrTerm->eOperator & WO_EQ );
        assert( pOrTerm->leftCursor==iCursor );
        assert( pOrTerm->u.leftColumn==iColumn );
        testcase( pOrTerm->pExpr->op==TK_IS );
        pDup = sqlite3ExprDup(db, pOrTerm->pExpr->pRight, 0);
        pList = sqlite3ExprListAppend(pWInfo->pParse, pList, pDup);
        pLeft = pOrTerm->pExpr->pLeft;
      }
      assert( pLeft!=0 );
      pDup = sqlite3ExprDup(db, pLeft, 0);
      pNew = sqlite3PExpr(pParse, TK_IN, pDup, 0, 0);
................................................................................
  char aff;
  if( pTerm->leftCursor!=pSrc->iCursor ) return 0;
  if( (pTerm->eOperator & WO_EQ)==0 ) return 0;
  if( (pTerm->prereqRight & notReady)!=0 ) return 0;
  if( pTerm->u.leftColumn<0 ) return 0;
  aff = pSrc->pTab->aCol[pTerm->u.leftColumn].affinity;
  if( !sqlite3IndexAffinityOk(pTerm->pExpr, aff) ) return 0;
  testcase( pTerm->pExpr->op==TK_IS );
  return 1;
}
#endif


#ifndef SQLITE_OMIT_AUTOMATIC_INDEX
/*
................................................................................
        sqlite3VdbeAddOp2(v, OP_SCopy, r1, regBase+j);
      }
    }
    testcase( pTerm->eOperator & WO_ISNULL );
    testcase( pTerm->eOperator & WO_IN );
    if( (pTerm->eOperator & (WO_ISNULL|WO_IN))==0 ){
      Expr *pRight = pTerm->pExpr->pRight;
      testcase( pTerm->pExpr->op==TK_IS );
      if( (pTerm->wtFlags & TERM_NULLOK)==0
       && sqlite3ExprCanBeNull(pRight)
      ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+j, pLevel->addrBrk);
        VdbeCoverage(v);
      }
      if( zAff ){
................................................................................

    /* Seek the index cursor to the start of the range. */
    nConstraint = nEq;
    if( pRangeStart ){
      Expr *pRight = pRangeStart->pExpr->pRight;
      sqlite3ExprCode(pParse, pRight, regBase+nEq);
      whereLikeOptimizationStringFixup(v, pLevel, pRangeStart);
      testcase( pRangeStart->pExpr->op==TK_IS );
      if( (pRangeStart->wtFlags & TERM_NULLOK)==0
       && sqlite3ExprCanBeNull(pRight)
      ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt);
        VdbeCoverage(v);
      }
      if( zStartAff ){
................................................................................
    */
    nConstraint = nEq;
    if( pRangeEnd ){
      Expr *pRight = pRangeEnd->pExpr->pRight;
      sqlite3ExprCacheRemove(pParse, regBase+nEq, 1);
      sqlite3ExprCode(pParse, pRight, regBase+nEq);
      whereLikeOptimizationStringFixup(v, pLevel, pRangeEnd);
      testcase( pRangeEnd->pExpr->op==TK_IS );
      if( (pRangeEnd->wtFlags & TERM_NULLOK)==0
       && sqlite3ExprCanBeNull(pRight)
      ){
        sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt);
        VdbeCoverage(v);
      }
      if( sqlite3CompareAffinity(pRight, cEndAff)!=SQLITE_AFF_NONE
................................................................................
    if( pLevel->iLeftJoin ) continue;
    pE = pTerm->pExpr;
    assert( !ExprHasProperty(pE, EP_FromJoin) );
    assert( (pTerm->prereqRight & pLevel->notReady)!=0 );
    pAlt = findTerm(pWC, iCur, pTerm->u.leftColumn, notReady, WO_EQ|WO_IN, 0);
    if( pAlt==0 ) continue;
    if( pAlt->wtFlags & (TERM_CODED) ) continue;
    testcase( (pAlt->eOperator & WO_EQ)!=0 && pAlt->pExpr->op==TK_IS );
    testcase( pAlt->eOperator & WO_IN );
    VdbeModuleComment((v, "begin transitive constraint"));
    pEAlt = sqlite3StackAllocRaw(db, sizeof(*pEAlt));
    if( pEAlt ){
      *pEAlt = *pAlt->pExpr;
      pEAlt->pLeft = pE->pLeft;
      sqlite3ExprIfFalse(pParse, pEAlt, addrCont, SQLITE_JUMPIFNULL);
................................................................................
        pLoop->nOut += pTerm->truthProb;
      }else{
        /* In the absence of explicit truth probabilities, use heuristics to
        ** guess a reasonable truth probability. */
        pLoop->nOut--;
        if( pTerm->eOperator&WO_EQ ){
          Expr *pRight = pTerm->pExpr->pRight;
          testcase( pTerm->pExpr->op==TK_IS );
          if( sqlite3ExprIsInteger(pRight, &k) && k>=(-1) && k<=1 ){
            k = 10;
          }else{
            k = 20;
          }
          if( iReduce<k ) iReduce = k;
        }
................................................................................
        if( nInMul==0 
         && pProbe->nSample 
         && pNew->u.btree.nEq<=pProbe->nSampleCol
         && ((eOp & WO_IN)==0 || !ExprHasProperty(pTerm->pExpr, EP_xIsSelect))
        ){
          Expr *pExpr = pTerm->pExpr;
          if( (eOp & (WO_EQ|WO_ISNULL))!=0 ){
            testcase( (eOp & WO_EQ)!=0 && pExpr->op==TK_IS );
            testcase( eOp & WO_ISNULL );
            rc = whereEqualScanEst(pParse, pBuilder, pExpr->pRight, &nOut);
          }else{
            rc = whereInScanEst(pParse, pBuilder, pExpr->x.pList, &nOut);
          }
          if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
          if( rc!=SQLITE_OK ) break;          /* Jump out of the pTerm loop */
................................................................................
        pColl = sqlite3ExprCollSeq(pWInfo->pParse, pOrderBy->a[i].pExpr);
        if( !pColl ) pColl = db->pDfltColl;
        z1 = pColl->zName;
        pColl = sqlite3ExprCollSeq(pWInfo->pParse, pTerm->pExpr);
        if( !pColl ) pColl = db->pDfltColl;
        z2 = pColl->zName;
        if( sqlite3StrICmp(z1, z2)!=0 ) continue;
        testcase( pTerm->pExpr->op==TK_IS );
      }
      obSat |= MASKBIT(i);
    }

    if( (pLoop->wsFlags & WHERE_ONEROW)==0 ){
      if( pLoop->wsFlags & WHERE_IPK ){
        pIndex = 0;
................................................................................
       || pIdx->pPartIdxWhere!=0 
       || pIdx->nKeyCol>ArraySize(pLoop->aLTermSpace) 
      ) continue;
      for(j=0; j<pIdx->nKeyCol; j++){
        pTerm = findTerm(pWC, iCur, pIdx->aiColumn[j], 0, WO_EQ, pIdx);
        if( pTerm==0 ) break;
        pLoop->aLTerm[j] = pTerm;
        testcase( pTerm->pExpr->op==TK_IS );
      }
      if( j!=pIdx->nKeyCol ) continue;
      pLoop->wsFlags = WHERE_COLUMN_EQ|WHERE_ONEROW|WHERE_INDEXED;
      if( pIdx->isCovering || (pItem->colUsed & ~columnsInIndex(pIdx))==0 ){
        pLoop->wsFlags |= WHERE_IDX_ONLY;
      }
      pLoop->nLTerm = j;

Changes to test/where.test.

61
62
63
64
65
66
67



68
69
70



71
72
73
74
75
76
77
..
97
98
99
100
101
102
103



104
105
106



107
108
109



110
111
112
113
114
115
116
...
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
# "sqlite_search_count" which tallys the number of executions of MoveTo
# and Next operators in the VDBE.  By verifing that the search count is
# small we can be assured that indices are being used properly.
#
do_test where-1.1.1 {
  count {SELECT x, y, w FROM t1 WHERE w=10}
} {3 121 10 3}



do_eqp_test where-1.1.2 {
  SELECT x, y, w FROM t1 WHERE w=10
} {*SEARCH TABLE t1 USING INDEX i1w (w=?)*}



do_test where-1.1.3 {
  db status step
} {0}
do_test where-1.1.4 {
  db eval {SELECT x, y, w FROM t1 WHERE +w=10}
} {3 121 10}
do_test where-1.1.5 {
................................................................................
} {3 144 11 3}
do_test where-1.3.1 {
  count {SELECT x, y, w AS abc FROM t1 WHERE 11=w}
} {3 144 11 3}
do_test where-1.3.2 {
  count {SELECT x, y, w AS abc FROM t1 WHERE 11=abc}
} {3 144 11 3}



do_test where-1.4.1 {
  count {SELECT w, x, y FROM t1 WHERE 11=w AND x>2}
} {11 3 144 3}



do_eqp_test where-1.4.2 {
  SELECT w, x, y FROM t1 WHERE 11=w AND x>2
} {*SEARCH TABLE t1 USING INDEX i1w (w=?)*}



do_test where-1.4.3 {
  count {SELECT w AS a, x AS b, y FROM t1 WHERE 11=a AND b>2}
} {11 3 144 3}
do_eqp_test where-1.4.4 {
  SELECT w AS a, x AS b, y FROM t1 WHERE 11=a AND b>2
} {*SEARCH TABLE t1 USING INDEX i1w (w=?)*}
do_test where-1.5 {
................................................................................
} {3 144 3}
do_test where-1.10 {
  count {SELECT x, y FROM t1 WHERE x=3 AND w>=10 AND y=121}
} {3 121 3}
do_test where-1.11 {
  count {SELECT x, y FROM t1 WHERE x=3 AND y=100 AND w<10}
} {3 100 3}




# New for SQLite version 2.1: Verify that that inequality constraints
# are used correctly.
#
do_test where-1.12 {
  count {SELECT w FROM t1 WHERE x=3 AND y<100}
} {8 3}



do_test where-1.13 {
  count {SELECT w FROM t1 WHERE x=3 AND 100>y}
} {8 3}
do_test where-1.14 {
  count {SELECT w FROM t1 WHERE 3=x AND y<100}
} {8 3}



do_test where-1.15 {
  count {SELECT w FROM t1 WHERE 3=x AND 100>y}
} {8 3}
do_test where-1.16 {
  count {SELECT w FROM t1 WHERE x=3 AND y<=100}
} {8 9 5}
do_test where-1.17 {
  count {SELECT w FROM t1 WHERE x=3 AND 100>=y}
} {8 9 5}
do_test where-1.18 {
  count {SELECT w FROM t1 WHERE x=3 AND y>225}
} {15 3}



do_test where-1.19 {
  count {SELECT w FROM t1 WHERE x=3 AND 225<y}
} {15 3}
do_test where-1.20 {
  count {SELECT w FROM t1 WHERE x=3 AND y>=225}
} {14 15 5}
do_test where-1.21 {
  count {SELECT w FROM t1 WHERE x=3 AND 225<=y}
} {14 15 5}
do_test where-1.22 {
  count {SELECT w FROM t1 WHERE x=3 AND y>121 AND y<196}
} {11 12 5}



do_test where-1.23 {
  count {SELECT w FROM t1 WHERE x=3 AND y>=121 AND y<=196}
} {10 11 12 13 9}
do_test where-1.24 {
  count {SELECT w FROM t1 WHERE x=3 AND 121<y AND 196>y}
} {11 12 5}
do_test where-1.25 {







>
>
>



>
>
>







 







>
>
>



>
>
>



>
>
>







 







>
>
>







>
>
>






>
>
>












>
>
>












>
>
>







61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
...
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
...
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
# "sqlite_search_count" which tallys the number of executions of MoveTo
# and Next operators in the VDBE.  By verifing that the search count is
# small we can be assured that indices are being used properly.
#
do_test where-1.1.1 {
  count {SELECT x, y, w FROM t1 WHERE w=10}
} {3 121 10 3}
do_test where-1.1.1b {
  count {SELECT x, y, w FROM t1 WHERE w IS 10}
} {3 121 10 3}
do_eqp_test where-1.1.2 {
  SELECT x, y, w FROM t1 WHERE w=10
} {*SEARCH TABLE t1 USING INDEX i1w (w=?)*}
do_eqp_test where-1.1.2b {
  SELECT x, y, w FROM t1 WHERE w IS 10
} {*SEARCH TABLE t1 USING INDEX i1w (w=?)*}
do_test where-1.1.3 {
  db status step
} {0}
do_test where-1.1.4 {
  db eval {SELECT x, y, w FROM t1 WHERE +w=10}
} {3 121 10}
do_test where-1.1.5 {
................................................................................
} {3 144 11 3}
do_test where-1.3.1 {
  count {SELECT x, y, w AS abc FROM t1 WHERE 11=w}
} {3 144 11 3}
do_test where-1.3.2 {
  count {SELECT x, y, w AS abc FROM t1 WHERE 11=abc}
} {3 144 11 3}
do_test where-1.3.3 {
  count {SELECT x, y, w AS abc FROM t1 WHERE 11 IS abc}
} {3 144 11 3}
do_test where-1.4.1 {
  count {SELECT w, x, y FROM t1 WHERE 11=w AND x>2}
} {11 3 144 3}
do_test where-1.4.1b {
  count {SELECT w, x, y FROM t1 WHERE 11 IS w AND x>2}
} {11 3 144 3}
do_eqp_test where-1.4.2 {
  SELECT w, x, y FROM t1 WHERE 11=w AND x>2
} {*SEARCH TABLE t1 USING INDEX i1w (w=?)*}
do_eqp_test where-1.4.2b {
  SELECT w, x, y FROM t1 WHERE 11 IS w AND x>2
} {*SEARCH TABLE t1 USING INDEX i1w (w=?)*}
do_test where-1.4.3 {
  count {SELECT w AS a, x AS b, y FROM t1 WHERE 11=a AND b>2}
} {11 3 144 3}
do_eqp_test where-1.4.4 {
  SELECT w AS a, x AS b, y FROM t1 WHERE 11=a AND b>2
} {*SEARCH TABLE t1 USING INDEX i1w (w=?)*}
do_test where-1.5 {
................................................................................
} {3 144 3}
do_test where-1.10 {
  count {SELECT x, y FROM t1 WHERE x=3 AND w>=10 AND y=121}
} {3 121 3}
do_test where-1.11 {
  count {SELECT x, y FROM t1 WHERE x=3 AND y=100 AND w<10}
} {3 100 3}
do_test where-1.11b {
  count {SELECT x, y FROM t1 WHERE x IS 3 AND y IS 100 AND w<10}
} {3 100 3}

# New for SQLite version 2.1: Verify that that inequality constraints
# are used correctly.
#
do_test where-1.12 {
  count {SELECT w FROM t1 WHERE x=3 AND y<100}
} {8 3}
do_test where-1.12b {
  count {SELECT w FROM t1 WHERE x IS 3 AND y<100}
} {8 3}
do_test where-1.13 {
  count {SELECT w FROM t1 WHERE x=3 AND 100>y}
} {8 3}
do_test where-1.14 {
  count {SELECT w FROM t1 WHERE 3=x AND y<100}
} {8 3}
do_test where-1.14b {
  count {SELECT w FROM t1 WHERE 3 IS x AND y<100}
} {8 3}
do_test where-1.15 {
  count {SELECT w FROM t1 WHERE 3=x AND 100>y}
} {8 3}
do_test where-1.16 {
  count {SELECT w FROM t1 WHERE x=3 AND y<=100}
} {8 9 5}
do_test where-1.17 {
  count {SELECT w FROM t1 WHERE x=3 AND 100>=y}
} {8 9 5}
do_test where-1.18 {
  count {SELECT w FROM t1 WHERE x=3 AND y>225}
} {15 3}
do_test where-1.18b {
  count {SELECT w FROM t1 WHERE x IS 3 AND y>225}
} {15 3}
do_test where-1.19 {
  count {SELECT w FROM t1 WHERE x=3 AND 225<y}
} {15 3}
do_test where-1.20 {
  count {SELECT w FROM t1 WHERE x=3 AND y>=225}
} {14 15 5}
do_test where-1.21 {
  count {SELECT w FROM t1 WHERE x=3 AND 225<=y}
} {14 15 5}
do_test where-1.22 {
  count {SELECT w FROM t1 WHERE x=3 AND y>121 AND y<196}
} {11 12 5}
do_test where-1.22b {
  count {SELECT w FROM t1 WHERE x IS 3 AND y>121 AND y<196}
} {11 12 5}
do_test where-1.23 {
  count {SELECT w FROM t1 WHERE x=3 AND y>=121 AND y<=196}
} {10 11 12 13 9}
do_test where-1.24 {
  count {SELECT w FROM t1 WHERE x=3 AND 121<y AND 196>y}
} {11 12 5}
do_test where-1.25 {