SQLite

Check-in [80cda9f7ce]
Login

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

Overview
Comment:SQLite now always chooses the column names for compound selects using the left-most select. This makes SQLite work like other SQL database, but it also is a change from historical behavior and may break some scripts. Ticket #1721. (CVS 3153)
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 80cda9f7ce83f2de6cd2fdaf6150bbc35b670fee
User & Date: drh 2006-03-26 01:21:23.000
Context
2006-03-26
20:49
Work around a bug in GCC 4.0.2. (CVS 3154) (check-in: fe0920c792 user: drh tags: trunk)
01:21
SQLite now always chooses the column names for compound selects using the left-most select. This makes SQLite work like other SQL database, but it also is a change from historical behavior and may break some scripts. Ticket #1721. (CVS 3153) (check-in: 80cda9f7ce user: drh tags: trunk)
2006-03-25
15:52
Add code to report an error on a recursive trigger, but leave it commented out - turning it on will likely break a lot of code. (CVS 3152) (check-in: c83ec81d53 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/select.c.
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.309 2006/03/17 13:56:34 drh Exp $
*/
#include "sqliteInt.h"


/*
** Delete all the content of a Select structure but do not deallocate
** the select structure itself.







|







8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.310 2006/03/26 01:21:23 drh Exp $
*/
#include "sqliteInt.h"


/*
** Delete all the content of a Select structure but do not deallocate
** the select structure itself.
1043
1044
1045
1046
1047
1048
1049

1050
1051
1052
1053
1054
1055
1056
*/
Table *sqlite3ResultSetOfSelect(Parse *pParse, char *zTabName, Select *pSelect){
  Table *pTab;
  int i, j;
  ExprList *pEList;
  Column *aCol, *pCol;


  if( prepSelectStmt(pParse, pSelect) ){
    return 0;
  }
  if( sqlite3SelectResolve(pParse, pSelect, 0) ){
    return 0;
  }
  pTab = sqliteMalloc( sizeof(Table) );







>







1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
*/
Table *sqlite3ResultSetOfSelect(Parse *pParse, char *zTabName, Select *pSelect){
  Table *pTab;
  int i, j;
  ExprList *pEList;
  Column *aCol, *pCol;

  while( pSelect->pPrior ) pSelect = pSelect->pPrior;
  if( prepSelectStmt(pParse, pSelect) ){
    return 0;
  }
  if( sqlite3SelectResolve(pParse, pSelect, 0) ){
    return 0;
  }
  pTab = sqliteMalloc( sizeof(Table) );
1761
1762
1763
1764
1765
1766
1767


1768
1769
1770
1771
1772
1773
1774
1775
      /* Convert the data in the temporary table into whatever form
      ** it is that we currently need.
      */      
      if( eDest!=priorOp || unionTab!=iParm ){
        int iCont, iBreak, iStart;
        assert( p->pEList );
        if( eDest==SRT_Callback ){


          generateColumnNames(pParse, 0, p->pEList);
        }
        iBreak = sqlite3VdbeMakeLabel(v);
        iCont = sqlite3VdbeMakeLabel(v);
        computeLimitRegisters(pParse, p, iBreak);
        sqlite3VdbeAddOp(v, OP_Rewind, unionTab, iBreak);
        iStart = sqlite3VdbeCurrentAddr(v);
        rc = selectInnerLoop(pParse, p, p->pEList, unionTab, p->pEList->nExpr,







>
>
|







1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
      /* Convert the data in the temporary table into whatever form
      ** it is that we currently need.
      */      
      if( eDest!=priorOp || unionTab!=iParm ){
        int iCont, iBreak, iStart;
        assert( p->pEList );
        if( eDest==SRT_Callback ){
          Select *pFirst = p;
          while( pFirst->pPrior ) pFirst = pFirst->pPrior;
          generateColumnNames(pParse, 0, pFirst->pEList);
        }
        iBreak = sqlite3VdbeMakeLabel(v);
        iCont = sqlite3VdbeMakeLabel(v);
        computeLimitRegisters(pParse, p, iBreak);
        sqlite3VdbeAddOp(v, OP_Rewind, unionTab, iBreak);
        iStart = sqlite3VdbeCurrentAddr(v);
        rc = selectInnerLoop(pParse, p, p->pEList, unionTab, p->pEList->nExpr,
1837
1838
1839
1840
1841
1842
1843


1844
1845
1846
1847
1848
1849
1850
1851
      }

      /* Generate code to take the intersection of the two temporary
      ** tables.
      */
      assert( p->pEList );
      if( eDest==SRT_Callback ){


        generateColumnNames(pParse, 0, p->pEList);
      }
      iBreak = sqlite3VdbeMakeLabel(v);
      iCont = sqlite3VdbeMakeLabel(v);
      computeLimitRegisters(pParse, p, iBreak);
      sqlite3VdbeAddOp(v, OP_Rewind, tab1, iBreak);
      iStart = sqlite3VdbeAddOp(v, OP_RowKey, tab1, 0);
      sqlite3VdbeAddOp(v, OP_NotFound, tab2, iCont);







>
>
|







1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
      }

      /* Generate code to take the intersection of the two temporary
      ** tables.
      */
      assert( p->pEList );
      if( eDest==SRT_Callback ){
        Select *pFirst = p;
        while( pFirst->pPrior ) pFirst = pFirst->pPrior;
        generateColumnNames(pParse, 0, pFirst->pEList);
      }
      iBreak = sqlite3VdbeMakeLabel(v);
      iCont = sqlite3VdbeMakeLabel(v);
      computeLimitRegisters(pParse, p, iBreak);
      sqlite3VdbeAddOp(v, OP_Rewind, tab1, iBreak);
      iStart = sqlite3VdbeAddOp(v, OP_RowKey, tab1, 0);
      sqlite3VdbeAddOp(v, OP_NotFound, tab2, iCont);
Changes to test/func.test.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
# 2001 September 15
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing built-in functions.
#
# $Id: func.test,v 1.50 2006/03/02 03:02:48 drh Exp $

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

# Create a table to work with.
#
do_test func-0.0 {













|







1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
# 2001 September 15
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing built-in functions.
#
# $Id: func.test,v 1.51 2006/03/26 01:21:23 drh Exp $

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

# Create a table to work with.
#
do_test func-0.0 {
407
408
409
410
411
412
413

414
415
416
417
418
419
420
    DROP TABLE t4;
  }
} {}

# Test that the auxdata API for scalar functions works. This test uses
# a special user-defined function only available in test builds,
# test_auxdata(). Function test_auxdata() takes any number of arguments.

do_test func-13.1 {
  execsql {
    SELECT test_auxdata('hello world');
  }
} {0}

do_test func-13.2 {







>







407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
    DROP TABLE t4;
  }
} {}

# Test that the auxdata API for scalar functions works. This test uses
# a special user-defined function only available in test builds,
# test_auxdata(). Function test_auxdata() takes any number of arguments.
btree_breakpoint
do_test func-13.1 {
  execsql {
    SELECT test_auxdata('hello world');
  }
} {0}

do_test func-13.2 {
Changes to test/minmax.test.
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing SELECT statements that contain
# aggregate min() and max() functions and which are handled as
# as a special case.
#
# $Id: minmax.test,v 1.18 2005/09/08 19:45:58 drh Exp $

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

do_test minmax-1.0 {
  execsql {
    BEGIN;







|







9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing SELECT statements that contain
# aggregate min() and max() functions and which are handled as
# as a special case.
#
# $Id: minmax.test,v 1.19 2006/03/26 01:21:23 drh Exp $

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

do_test minmax-1.0 {
  execsql {
    BEGIN;
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
      SELECT coalesce(min(x+0),-1), coalesce(max(x+0),-1) FROM
        (SELECT * FROM t1 UNION SELECT NULL as 'x', NULL as 'y')
    }
  } {1 20}
  do_test minmax-4.2 {
    execsql {
      SELECT y, coalesce(sum(x),0) FROM
        (SELECT null, y+1 FROM t1 UNION SELECT * FROM t1)
      GROUP BY y ORDER BY y;
    }
  } {1 1 2 5 3 22 4 92 5 90 6 0}
  do_test minmax-4.3 {
    execsql {
      SELECT y, count(x), count(*) FROM
        (SELECT null, y+1 FROM t1 UNION SELECT * FROM t1)
      GROUP BY y ORDER BY y;
    }
  } {1 1 1 2 2 3 3 4 5 4 8 9 5 5 6 6 0 1}
} ;# ifcapable compound

# Make sure the min(x) and max(x) optimizations work on empty tables
# including empty tables with indices. Ticket #296.







|






|







140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
      SELECT coalesce(min(x+0),-1), coalesce(max(x+0),-1) FROM
        (SELECT * FROM t1 UNION SELECT NULL as 'x', NULL as 'y')
    }
  } {1 20}
  do_test minmax-4.2 {
    execsql {
      SELECT y, coalesce(sum(x),0) FROM
        (SELECT null AS x, y+1 AS y FROM t1 UNION SELECT * FROM t1)
      GROUP BY y ORDER BY y;
    }
  } {1 1 2 5 3 22 4 92 5 90 6 0}
  do_test minmax-4.3 {
    execsql {
      SELECT y, count(x), count(*) FROM
        (SELECT null AS x, y+1 AS y FROM t1 UNION SELECT * FROM t1)
      GROUP BY y ORDER BY y;
    }
  } {1 1 1 2 2 3 3 4 5 4 8 9 5 5 6 6 0 1}
} ;# ifcapable compound

# Make sure the min(x) and max(x) optimizations work on empty tables
# including empty tables with indices. Ticket #296.
Changes to test/select1.test.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
# 2001 September 15
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the SELECT statement.
#
# $Id: select1.test,v 1.49 2006/03/14 13:10:43 drh Exp $

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

# Try to select on a non-existant table.
#
do_test select1-1.1 {













|







1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
# 2001 September 15
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the SELECT statement.
#
# $Id: select1.test,v 1.50 2006/03/26 01:21:23 drh Exp $

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

# Try to select on a non-existant table.
#
do_test select1-1.1 {
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
ifcapable compound {
do_test select1-6.10 {
  set v [catch {execsql2 {
    SELECT f1 FROM test1 UNION SELECT f2 FROM test1
    ORDER BY f2;
  }} msg]
  lappend v $msg
} {0 {f2 11 f2 22 f2 33 f2 44}}
do_test select1-6.11 {
  set v [catch {execsql2 {
    SELECT f1 FROM test1 UNION SELECT f2+100 FROM test1
    ORDER BY f2+100;
  }} msg]
  lappend v $msg
} {0 {f2+100 11 f2+100 33 f2+100 122 f2+100 144}}
} ;#ifcapable compound

do_test select1-7.1 {
  set v [catch {execsql {
     SELECT f1 FROM test1 WHERE f2=;
  }} msg]
  lappend v $msg







|






|







469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
ifcapable compound {
do_test select1-6.10 {
  set v [catch {execsql2 {
    SELECT f1 FROM test1 UNION SELECT f2 FROM test1
    ORDER BY f2;
  }} msg]
  lappend v $msg
} {0 {f1 11 f1 22 f1 33 f1 44}}
do_test select1-6.11 {
  set v [catch {execsql2 {
    SELECT f1 FROM test1 UNION SELECT f2+100 FROM test1
    ORDER BY f2+100;
  }} msg]
  lappend v $msg
} {0 {f1 11 f1 33 f1 122 f1 144}}
} ;#ifcapable compound

do_test select1-7.1 {
  set v [catch {execsql {
     SELECT f1 FROM test1 WHERE f2=;
  }} msg]
  lappend v $msg
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
  } {}
}

ifcapable {compound && subquery} {
  do_test select1-12.9 {
    execsql2 {
      SELECT x FROM (
        SELECT a,b FROM t3 UNION SELECT a AS 'x', b AS 'y' FROM t4 ORDER BY a,b
      ) ORDER BY x;
    }
  } {x 1 x 3}
  do_test select1-12.10 {
    execsql2 {
      SELECT z.x FROM (
        SELECT a,b FROM t3 UNION SELECT a AS 'x', b AS 'y' FROM t4 ORDER BY a,b
      ) AS 'z' ORDER BY x;
    }
  } {x 1 x 3}
} ;# ifcapable compound


# Check for a VDBE stack growth problem that existed at one point.







|






|







783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
  } {}
}

ifcapable {compound && subquery} {
  do_test select1-12.9 {
    execsql2 {
      SELECT x FROM (
        SELECT a AS x, b AS y FROM t3 UNION SELECT a,b FROM t4 ORDER BY a,b
      ) ORDER BY x;
    }
  } {x 1 x 3}
  do_test select1-12.10 {
    execsql2 {
      SELECT z.x FROM (
        SELECT a AS x,b AS y FROM t3 UNION SELECT a, b FROM t4 ORDER BY a,b
      ) AS 'z' ORDER BY x;
    }
  } {x 1 x 3}
} ;# ifcapable compound


# Check for a VDBE stack growth problem that existed at one point.
Changes to test/select4.test.
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing UNION, INTERSECT and EXCEPT operators
# in SELECT statements.
#
# $Id: select4.test,v 1.18 2005/01/21 04:25:47 danielk1977 Exp $

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

# Most tests in this file depend on compound-select. But there are a couple
# right at the end that test DISTINCT, so we cannot omit the entire file.
#







|







8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing UNION, INTERSECT and EXCEPT operators
# in SELECT statements.
#
# $Id: select4.test,v 1.19 2006/03/26 01:21:23 drh Exp $

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

# Most tests in this file depend on compound-select. But there are a couple
# right at the end that test DISTINCT, so we cannot omit the entire file.
#
506
507
508
509
510
511
512


513


























































































514
} {1.1 1.2 1.3}
do_test select4-8.2 {
  execsql {
    SELECT DISTINCT c FROM t3 ORDER BY c;
  }
} {1.1 1.10 1.2 1.3}






























































































finish_test







>
>
|
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>

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
} {1.1 1.2 1.3}
do_test select4-8.2 {
  execsql {
    SELECT DISTINCT c FROM t3 ORDER BY c;
  }
} {1.1 1.10 1.2 1.3}

# Make sure the names of columns are takenf rom the right-most subquery
# right in a compound query.  Ticket #1721
#
do_test select4-9.1 {
  execsql2 {
    SELECT x, y FROM t2 UNION SELECT a, b FROM t3 ORDER BY x LIMIT 1
  }
} {x 0 y 1}
do_test select4-9.2 {
  execsql2 {
    SELECT x, y FROM t2 UNION ALL SELECT a, b FROM t3 ORDER BY x LIMIT 1
  }
} {x 0 y 1}
do_test select4-9.3 {
  execsql2 {
    SELECT x, y FROM t2 EXCEPT SELECT a, b FROM t3 ORDER BY x LIMIT 1
  }
} {x 0 y 1}
do_test select4-9.4 {
  execsql2 {
    SELECT x, y FROM t2 INTERSECT SELECT 0 AS a, 1 AS b;
  }
} {x 0 y 1}
do_test select4-9.5 {
  execsql2 {
    SELECT 0 AS x, 1 AS y
    UNION
    SELECT 2 AS p, 3 AS q
    UNION
    SELECT 4 AS a, 5 AS b
    ORDER BY x LIMIT 1
  }
} {x 0 y 1}
do_test select4-9.6 {
  execsql2 {
    SELECT * FROM (
      SELECT 0 AS x, 1 AS y
      UNION
      SELECT 2 AS p, 3 AS q
      UNION
      SELECT 4 AS a, 5 AS b
    ) ORDER BY 1 LIMIT 1;
  }
} {x 0 y 1}
do_test select4-9.7 {
  execsql2 {
    SELECT * FROM (
      SELECT 0 AS x, 1 AS y
      UNION
      SELECT 2 AS p, 3 AS q
      UNION
      SELECT 4 AS a, 5 AS b
    ) ORDER BY x LIMIT 1;
  }
} {x 0 y 1}
do_test select4-9.8 {
  execsql2 {
    SELECT 0 AS x, 1 AS y
    UNION
    SELECT 2 AS y, -3 AS x
    ORDER BY x LIMIT 1;
  }
} {x 0 y 1}
do_test select4-9.9 {
  execsql2 {
    SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a
  }
} {a 1 b 2 a 3 b 4}
do_test select4-9.9 {
  execsql2 {
    SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a)
     WHERE b=3
  }
} {}
do_test select4-9.10 {
  execsql2 {
    SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS b, 4 AS a)
     WHERE b=2
  }
} {a 1 b 2}
do_test select4-9.11 {
  execsql2 {
    SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS e, 4 AS b)
     WHERE b=2
  }
} {a 1 b 2}
do_test select4-9.12 {
  execsql2 {
    SELECT * FROM (SELECT 1 AS a, 2 AS b UNION ALL SELECT 3 AS e, 4 AS b)
     WHERE b>0
  }
} {a 1 b 2 a 3 b 4}

finish_test
Changes to test/view.test.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
# 2002 February 26
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing VIEW statements.
#
# $Id: view.test,v 1.30 2006/03/09 17:28:13 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Omit this entire file if the library is not configured with views enabled.
ifcapable !view {
  finish_test
  return













|







1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
# 2002 February 26
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing VIEW statements.
#
# $Id: view.test,v 1.31 2006/03/26 01:21:23 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Omit this entire file if the library is not configured with views enabled.
ifcapable !view {
  finish_test
  return
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

ifcapable compound {
do_test  view-3.4 {
  execsql2 {
    CREATE VIEW v3 AS SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY b;
    SELECT * FROM v3 LIMIT 4;
  }
} {b 2 b 3 b 5 b 6}
do_test view-3.5 {
  execsql2 {
    CREATE VIEW v4 AS 
      SELECT a, b FROM t1 
      UNION
      SELECT b AS 'x', a AS 'y' FROM t1
      ORDER BY x, y;
    SELECT y FROM v4 ORDER BY y LIMIT 4;
  }
} {y 2 y 3 y 5 y 6}
} ;# ifcapable compound


do_test view-4.1 {
  catchsql {
    DROP VIEW t1;
  }







|







|

|







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

ifcapable compound {
do_test  view-3.4 {
  execsql2 {
    CREATE VIEW v3 AS SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY b;
    SELECT * FROM v3 LIMIT 4;
  }
} {a 2 a 3 a 5 a 6}
do_test view-3.5 {
  execsql2 {
    CREATE VIEW v4 AS 
      SELECT a, b FROM t1 
      UNION
      SELECT b AS 'x', a AS 'y' FROM t1
      ORDER BY x, y;
    SELECT b FROM v4 ORDER BY b LIMIT 4;
  }
} {b 2 b 3 b 5 b 6}
} ;# ifcapable compound


do_test view-4.1 {
  catchsql {
    DROP VIEW t1;
  }