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Overview
| Comment: | Fix long-standing bugs with the handling of LIMIT clausing in compound SELECT statements with FROM clause subqueries. Ticket [38cb5df375078d3f9]. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
b0450120eabfe5455cea1ed04cec587a |
| User & Date: | drh 2010-10-06 18:55:37.000 |
Context
|
2010-10-06
| ||
| 20:25 | Update the configure script and Makefile so that they work with 3.7.3. (check-in: 97b63a1168 user: drh tags: trunk) | |
| 18:55 | Fix long-standing bugs with the handling of LIMIT clausing in compound SELECT statements with FROM clause subqueries. Ticket [38cb5df375078d3f9]. (check-in: b0450120ea user: drh tags: trunk) | |
| 16:42 | Fix minor test suite problems causing errors on OSX. (check-in: 759c954fee user: dan tags: trunk) | |
Changes
Changes to src/select.c.
| ︙ | ︙ | |||
438 439 440 441 442 443 444 |
addr1 = sqlite3VdbeAddOp1(v, OP_IfZero, iLimit);
sqlite3VdbeAddOp2(v, OP_AddImm, iLimit, -1);
addr2 = sqlite3VdbeAddOp0(v, OP_Goto);
sqlite3VdbeJumpHere(v, addr1);
sqlite3VdbeAddOp1(v, OP_Last, pOrderBy->iECursor);
sqlite3VdbeAddOp1(v, OP_Delete, pOrderBy->iECursor);
sqlite3VdbeJumpHere(v, addr2);
| < | 438 439 440 441 442 443 444 445 446 447 448 449 450 451 |
addr1 = sqlite3VdbeAddOp1(v, OP_IfZero, iLimit);
sqlite3VdbeAddOp2(v, OP_AddImm, iLimit, -1);
addr2 = sqlite3VdbeAddOp0(v, OP_Goto);
sqlite3VdbeJumpHere(v, addr1);
sqlite3VdbeAddOp1(v, OP_Last, pOrderBy->iECursor);
sqlite3VdbeAddOp1(v, OP_Delete, pOrderBy->iECursor);
sqlite3VdbeJumpHere(v, addr2);
}
}
/*
** Add code to implement the OFFSET
*/
static void codeOffset(
|
| ︙ | ︙ | |||
717 718 719 720 721 722 723 |
default: {
assert( eDest==SRT_Discard );
break;
}
#endif
}
| | > > | < < | 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 |
default: {
assert( eDest==SRT_Discard );
break;
}
#endif
}
/* Jump to the end of the loop if the LIMIT is reached. Except, if
** there is a sorter, in which case the sorter has already limited
** the output for us.
*/
if( pOrderBy==0 && p->iLimit ){
sqlite3VdbeAddOp3(v, OP_IfZero, p->iLimit, iBreak, -1);
}
}
/*
** Given an expression list, generate a KeyInfo structure that records
** the collating sequence for each expression in that expression list.
|
| ︙ | ︙ | |||
856 857 858 859 860 861 862 |
}
break;
}
}
sqlite3ReleaseTempReg(pParse, regRow);
sqlite3ReleaseTempReg(pParse, regRowid);
| < < < < | 855 856 857 858 859 860 861 862 863 864 865 866 867 868 |
}
break;
}
}
sqlite3ReleaseTempReg(pParse, regRow);
sqlite3ReleaseTempReg(pParse, regRowid);
/* The bottom of the loop
*/
sqlite3VdbeResolveLabel(v, addrContinue);
sqlite3VdbeAddOp2(v, OP_Next, iTab, addr);
sqlite3VdbeResolveLabel(v, addrBreak);
if( eDest==SRT_Output || eDest==SRT_Coroutine ){
sqlite3VdbeAddOp2(v, OP_Close, pseudoTab, 0);
|
| ︙ | ︙ | |||
2177 2178 2179 2180 2181 2182 2183 |
}
}
}
/* Separate the left and the right query from one another
*/
p->pPrior = 0;
| < | 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 |
}
}
}
/* Separate the left and the right query from one another
*/
p->pPrior = 0;
sqlite3ResolveOrderGroupBy(pParse, p, p->pOrderBy, "ORDER");
if( pPrior->pPrior==0 ){
sqlite3ResolveOrderGroupBy(pParse, pPrior, pPrior->pOrderBy, "ORDER");
}
/* Compute the limit registers */
computeLimitRegisters(pParse, p, labelEnd);
|
| ︙ | ︙ |
Added test/tkt-38cb5df375.test.
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# 2010 October 6
#
# 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. Specifically,
# it tests that ticket [38cb5df375078d3f9711482d2a1615d09f6b3f33] has
# been resolved.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_test tkt-38cb5df375.0 {
execsql {
CREATE TABLE t1(a);
INSERT INTO t1 VALUES(1);
INSERT INTO t1 VALUES(2);
INSERT INTO t1 SELECT a+2 FROM t1;
INSERT INTO t1 SELECT a+4 FROM t1;
}
} {}
foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
do_test tkt-38cb5df375.1.$ii {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY a)
UNION ALL SELECT 9 FROM (SELECT a FROM t1)
LIMIT $::ii;
}
} [lrange {1 2 3 4 5 6 7 8 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
do_test tkt-38cb5df375.2.$ii {
execsql {
SELECT 9 FROM (SELECT * FROM t1)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a)
LIMIT $::ii;
}
} [lrange {9 9 9 9 9 9 9 9 1 2 3 4 5 6 7 8} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
do_test tkt-38cb5df375.3.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a)
LIMIT $::ii;
}
} [lrange {1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
do_test tkt-38cb5df375.4.$ii {
execsql {
SELECT 0 FROM (SELECT * FROM t1)
UNION ALL SELECT 9 FROM (SELECT a FROM t1)
LIMIT $::ii;
}
} [lrange {0 0 0 0 0 0 0 0 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4} {
do_test tkt-38cb5df375.5.$ii {
execsql {
SELECT 0 FROM (SELECT * FROM t1)
UNION SELECT 9 FROM (SELECT a FROM t1)
LIMIT $::ii;
}
} [lrange {0 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11} {
do_test tkt-38cb5df375.11.$ii {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
UNION ALL SELECT 9 FROM (SELECT a FROM t1)
LIMIT $::ii;
}
} [lrange {1 2 3 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11} {
do_test tkt-38cb5df375.12.$ii {
execsql {
SELECT 9 FROM (SELECT * FROM t1)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 3)
LIMIT $::ii;
}
} [lrange {9 9 9 9 9 9 9 9 1 2 3} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6} {
do_test tkt-38cb5df375.13.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 3)
LIMIT $::ii;
}
} [lrange {1 2 3 1 2 3} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6} {
do_test tkt-38cb5df375.14.$ii {
execsql {
SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
UNION ALL SELECT 9 FROM (SELECT a FROM t1 LIMIT 3)
LIMIT $::ii;
}
} [lrange {0 0 0 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
do_test tkt-38cb5df375.21.$ii {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY a)
UNION ALL SELECT 9 FROM (SELECT a FROM t1)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 4 5 6 7 8 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
do_test tkt-38cb5df375.22.$ii {
execsql {
SELECT 9 FROM (SELECT * FROM t1)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 4 5 6 7 8 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
do_test tkt-38cb5df375.23.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a)
ORDER BY 1 DESC
LIMIT $::ii;
}
} [lrange {8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} {
do_test tkt-38cb5df375.24.$ii {
execsql {
SELECT 0 FROM (SELECT * FROM t1)
UNION ALL SELECT 9 FROM (SELECT a FROM t1)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {0 0 0 0 0 0 0 0 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11} {
do_test tkt-38cb5df375.31.$ii {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
UNION ALL SELECT 9 FROM (SELECT a FROM t1)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9 10 11} {
do_test tkt-38cb5df375.32.$ii {
execsql {
SELECT 9 FROM (SELECT * FROM t1)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 3)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 9 9 9 9 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.33.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 4)
UNION ALL SELECT 90+a FROM (SELECT a FROM t1 ORDER BY a LIMIT 3)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 4 91 92 93} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.34.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 2)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 5)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 1 2 2 3 4 5} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.35.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
UNION ALL SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 1 2 2 3 4 5} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.35b.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
UNION ALL SELECT a+10 FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 4 5 11 12} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.35c.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
UNION SELECT a+10 FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 4 5 11 12} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.35d.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
INTERSECT SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.35e.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 5)
EXCEPT SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {3 4 5} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.36.$ii {
execsql {
SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
UNION ALL SELECT 9 FROM (SELECT a FROM t1 LIMIT 4)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {0 0 0 9 9 9 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.37.$ii {
execsql {
SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
UNION SELECT 9 FROM (SELECT a FROM t1 LIMIT 4)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {0 9} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
do_test tkt-38cb5df375.38.$ii {
execsql {
SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
EXCEPT SELECT 9 FROM (SELECT a FROM t1 LIMIT 4)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {0} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9} {
do_test tkt-38cb5df375.41.$ii {
execsql {
SELECT 0 FROM (SELECT * FROM t1 LIMIT 3)
UNION ALL SELECT 9 FROM (SELECT a FROM t1 LIMIT 4)
UNION ALL SELECT 88 FROM (SELECT a FROM t1 LIMIT 2)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {0 0 0 9 9 9 9 88 88} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9} {
do_test tkt-38cb5df375.42.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
UNION ALL SELECT a+10 FROM (SELECT a FROM t1 ORDER BY a LIMIT 4)
UNION ALL SELECT a+20 FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 11 12 13 14 21 22} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7 8 9} {
do_test tkt-38cb5df375.43.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a LIMIT 3)
UNION SELECT a+10 FROM (SELECT a FROM t1 ORDER BY a LIMIT 4)
UNION SELECT a+20 FROM (SELECT a FROM t1 ORDER BY a LIMIT 2)
ORDER BY 1
LIMIT $::ii;
}
} [lrange {1 2 3 11 12 13 14 21 22} 0 [expr {$ii-1}]]
}
foreach ii {1 2 3 4 5 6 7} {
set jj [expr {7-$ii}]
do_test tkt-38cb5df375.51.$ii {
execsql {
SELECT a FROM (SELECT * FROM t1 ORDER BY a)
EXCEPT SELECT a FROM (SELECT a FROM t1 ORDER BY a LIMIT $::ii)
ORDER BY a DESC
LIMIT $::jj;
}
} [lrange {8 7 6 5 4 3 2 1} 0 [expr {$jj-1}]]
}
finish_test
|