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Overview
Comment:Add tests and fixes for vector operations that use sub-queries with different combinations of LIMIT, OFFSET and ORDER BY clauses.
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SHA1: 092b1c5ff53c9f3cfed079c46e3353d93f99303e
User & Date: dan 2016-08-02 18:50:15
Context
2016-08-02
20:45
Add new test file rowvaluefault.test. (check-in: e496b2d6 user: dan tags: rowvalue)
18:50
Add tests and fixes for vector operations that use sub-queries with different combinations of LIMIT, OFFSET and ORDER BY clauses. (check-in: 092b1c5f user: dan tags: rowvalue)
17:45
Fix SQLITE_OMIT_SUBQUERY builds. (check-in: 339f85f4 user: dan tags: rowvalue)
Changes
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Changes to src/select.c. 

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    */
    case SRT_Set: {
      if( pSort ){
        /* At first glance you would think we could optimize out the
        ** ORDER BY in this case since the order of entries in the set
        ** does not matter.  But there might be a LIMIT clause, in which
        ** case the order does matter */

        pushOntoSorter(pParse, pSort, p, regResult, regResult, 1, nPrefixReg);
      }else{
        int r1 = sqlite3GetTempReg(pParse);
        assert( sqlite3Strlen30(pDest->zAffSdst)==nResultCol );
        sqlite3VdbeAddOp4(v, OP_MakeRecord, regResult, nResultCol, 
            r1, pDest->zAffSdst, nResultCol);
        sqlite3ExprCacheAffinityChange(pParse, regResult, nResultCol);
        sqlite3VdbeAddOp2(v, OP_IdxInsert, iParm, r1);
................................................................................
    sqlite3VdbeResolveLabel(v, pSort->labelBkOut);
  }
  iTab = pSort->iECursor;
  if( eDest==SRT_Output || eDest==SRT_Coroutine || eDest==SRT_Mem ){
    regRowid = 0;
    regRow = pDest->iSdst;
    nSortData = nColumn;




  }else{
    regRowid = sqlite3GetTempReg(pParse);
    regRow = sqlite3GetTempReg(pParse);
    nSortData = 1;
  }
  nKey = pOrderBy->nExpr - pSort->nOBSat;
  if( pSort->sortFlags & SORTFLAG_UseSorter ){
................................................................................
      }else{
        sqlite3VdbeAddOp1(v, OP_Yield, pDest->iSDParm);
      }
      break;
    }
  }
  if( regRowid ){



    sqlite3ReleaseTempReg(pParse, regRow);

    sqlite3ReleaseTempReg(pParse, regRowid);
  }
  /* The bottom of the loop
  */
  sqlite3VdbeResolveLabel(v, addrContinue);
  if( pSort->sortFlags & SORTFLAG_UseSorter ){
    sqlite3VdbeAddOp2(v, OP_SorterNext, iTab, addr); VdbeCoverage(v);








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    */
    case SRT_Set: {
      if( pSort ){
        /* At first glance you would think we could optimize out the
        ** ORDER BY in this case since the order of entries in the set
        ** does not matter.  But there might be a LIMIT clause, in which
        ** case the order does matter */
        pushOntoSorter(
            pParse, pSort, p, regResult, regResult, nResultCol, nPrefixReg);
      }else{
        int r1 = sqlite3GetTempReg(pParse);
        assert( sqlite3Strlen30(pDest->zAffSdst)==nResultCol );
        sqlite3VdbeAddOp4(v, OP_MakeRecord, regResult, nResultCol, 
            r1, pDest->zAffSdst, nResultCol);
        sqlite3ExprCacheAffinityChange(pParse, regResult, nResultCol);
        sqlite3VdbeAddOp2(v, OP_IdxInsert, iParm, r1);
................................................................................
    sqlite3VdbeResolveLabel(v, pSort->labelBkOut);
  }
  iTab = pSort->iECursor;
  if( eDest==SRT_Output || eDest==SRT_Coroutine || eDest==SRT_Mem ){
    regRowid = 0;
    regRow = pDest->iSdst;
    nSortData = nColumn;
  }else if( eDest==SRT_Set ){
    regRowid = sqlite3GetTempReg(pParse);
    regRow = sqlite3GetTempRange(pParse, nColumn);
    nSortData = nColumn;
  }else{
    regRowid = sqlite3GetTempReg(pParse);
    regRow = sqlite3GetTempReg(pParse);
    nSortData = 1;
  }
  nKey = pOrderBy->nExpr - pSort->nOBSat;
  if( pSort->sortFlags & SORTFLAG_UseSorter ){
................................................................................
      }else{
        sqlite3VdbeAddOp1(v, OP_Yield, pDest->iSDParm);
      }
      break;
    }
  }
  if( regRowid ){
    if( eDest==SRT_Set ){
      sqlite3ReleaseTempRange(pParse, regRow, nColumn);
    }else{
      sqlite3ReleaseTempReg(pParse, regRow);
    }
    sqlite3ReleaseTempReg(pParse, regRowid);
  }
  /* The bottom of the loop
  */
  sqlite3VdbeResolveLabel(v, addrContinue);
  if( pSort->sortFlags & SORTFLAG_UseSorter ){
    sqlite3VdbeAddOp2(v, OP_SorterNext, iTab, addr); VdbeCoverage(v);

Changes to test/rowvalue4.test. 

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foreach {nm idx} {
  idx1 {}
  idx2 { CREATE INDEX t2abc ON t2(a, b, c); }
  idx3 { CREATE INDEX t2abc ON t2(a, b DESC, c); }
  idx4 { CREATE INDEX t2abc ON t2(a DESC, b DESC, c DESC); }
  idx5 { CREATE INDEX t2abc ON t2(a ASC, b ASC, c ASC); }
  idx6 { CREATE INDEX t2abc ON t2(a DESC, b, c); }



} {
  drop_all_indexes
  execsql $idx

  foreach {tn where res} {
    1 "(a, b, c) < (2, 2, 2)"  {1 2 3 4 5 6 7 8 9 10 11 12 13}
    2 "(a, b, c) <= (2, 2, 2)" {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
    3 "(a, b, c) > (2, 2, 2)"  {15 16 17 18 19 20 21 22 23 24 25 26 27}
    4 "(a, b, c) >= (2, 2, 2)" {14 15 16 17 18 19 20 21 22 23 24 25 26 27}









  } {
    set result [db eval "SELECT d FROM t2 WHERE $where"]
    do_test 2.$nm.$tn { lsort -integer $result } $res
  }
}


























finish_test









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foreach {nm idx} {
  idx1 {}
  idx2 { CREATE INDEX t2abc ON t2(a, b, c); }
  idx3 { CREATE INDEX t2abc ON t2(a, b DESC, c); }
  idx4 { CREATE INDEX t2abc ON t2(a DESC, b DESC, c DESC); }
  idx5 { CREATE INDEX t2abc ON t2(a ASC, b ASC, c ASC); }
  idx6 { CREATE INDEX t2abc ON t2(a DESC, b, c); }
  idx7 { CREATE INDEX t2abc ON t2(a DESC, b DESC) }
  idx8 { CREATE INDEX t2abc ON t2(c, b, a); }
  idx9 { CREATE INDEX t2d ON t2(d); }
} {
  drop_all_indexes
  execsql $idx

  foreach {tn where res} {
    1 "(a, b, c) < (2, 2, 2)"  {1 2 3 4 5 6 7 8 9 10 11 12 13}
    2 "(a, b, c) <= (2, 2, 2)" {1 2 3 4 5 6 7 8 9 10 11 12 13 14}
    3 "(a, b, c) > (2, 2, 2)"  {15 16 17 18 19 20 21 22 23 24 25 26 27}
    4 "(a, b, c) >= (2, 2, 2)" {14 15 16 17 18 19 20 21 22 23 24 25 26 27}
    5 "(a, b, c) >= (2, 2, NULL)" {16 17 18 19 20 21 22 23 24 25 26 27}
    6 "(a, b, c) <= (2, 2, NULL)" {1 2 3 4 5 6 7 8 9 10 11 12}
    7 "(a, b, c) >= (2, NULL, NULL)" {19 20 21 22 23 24 25 26 27}
    8 "(a, b, c) <= (2, NULL, NULL)" {1 2 3 4 5 6 7 8 9}

    9 "(a, b, c) < (SELECT a, b, c FROM t2 WHERE d=14)"  
      {1 2 3 4 5 6 7 8 9 10 11 12 13}

    10 "(a, b, c) = (SELECT a, b, c FROM t2 WHERE d=14)" 14
  } {
    set result [db eval "SELECT d FROM t2 WHERE $where"]
    do_test 2.1.$nm.$tn { lsort -integer $result } $res
  }

  foreach {tn e res} {
    1 "(2, 1) IN (SELECT a, b FROM t2)" 1
    2 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d)" 1
    3 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d LIMIT 9)" 0
    4 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d LIMIT 10)" 1

    5 "(3, 3) = (SELECT a, b FROM t2 ORDER BY d DESC LIMIT 1)" 1
    6 "(3, 3) = (SELECT a, b FROM t2 ORDER BY d ASC LIMIT 1)" 0
    7 "(1, NULL) = (SELECT a, b FROM t2 ORDER BY d ASC LIMIT 1)" {{}}

    8 "(3, 1) = (SELECT b, c FROM t2 ORDER BY d DESC LIMIT 1 OFFSET 2)" 1
    9 "(3, 1) = (SELECT b, c FROM t2 ORDER BY d ASC LIMIT 1 OFFSET 2)" 0
    10 "(1, NULL) = (SELECT b, c FROM t2 ORDER BY d ASC LIMIT 1 OFFSET 2)" {{}}

    11 "(3, 3) = (SELECT max(a), max(b) FROM t2)" 1
    12 "(3, 1) = (SELECT max(a), min(b) FROM t2)" 1
    13 "(NULL, NULL) = (SELECT max(a), min(b) FROM t2)" {{}}

    14 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d LIMIT 5 OFFSET 11)" 1
    15 "(2, 1) IN (SELECT a, b FROM t2 ORDER BY d LIMIT 5 OFFSET 12)" 0
  } {
    do_execsql_test 2.2.$nm.$tn "SELECT $e" $res
  }
}


finish_test

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