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Overview
| Comment: | Make sure affinity is applied correctly on lower-bound range constraints in the min() optimization. Fix for ticket [a0bac8b3c3d1bb]. |
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| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | apple-osx |
| Files: | files | file ages | folders |
| SHA1: |
0e9f534fef72ca142a4296ab5285c82a |
| User & Date: | drh 2016-07-26 04:23:55.718 |
Context
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2016-07-26
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| 04:54 | Merge the cache_spill VACUUM fix from trunk. (check-in: cc6bfdf814 user: drh tags: apple-osx) | |
| 04:31 | Make sure affinity is applied correctly on lower-bound range constraints in the min() optimization. Fix for ticket [a0bac8b3c3d1bb]. (check-in: b819bace9c user: drh tags: trunk) | |
| 04:23 | Make sure affinity is applied correctly on lower-bound range constraints in the min() optimization. Fix for ticket [a0bac8b3c3d1bb]. (check-in: 0e9f534fef user: drh tags: apple-osx) | |
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2016-07-25
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| 22:46 | Merge the VACCUM cache_size adjustment from trunk. (check-in: cdb7efd01e user: drh tags: apple-osx) | |
Changes
Changes to src/wherecode.c.
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}
if( sqlite3ExprNeedsNoAffinityChange(pRight, zStartAff[nEq]) ){
zStartAff[nEq] = SQLITE_AFF_BLOB;
}
}
nConstraint++;
testcase( pRangeStart->wtFlags & TERM_VIRTUAL );
bSeekPastNull = 0;
}else if( bSeekPastNull ){
sqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
nConstraint++;
startEq = 0;
start_constraints = 1;
}
codeApplyAffinity(pParse, regBase, nConstraint - bSeekPastNull, zStartAff);
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Changes to test/minmax.test.
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} {5}
do_test_13_noopt 13.7 {
SELECT min(b), count(b) FROM t1 WHERE a='a';
} {
SELECT min(c), count(c) FROM t1 WHERE a='a';
} {1 5}
# 2016-07-26. https://www.sqlite.org/src/info/a0bac8b3c3d1bb75
# Incorrect result on a min() query after a CREATE INDEX.
#
do_execsql_test 14.1 {
CREATE TABLE t14(a INTEGER, b INTEGER);
INSERT INTO t14(a,b) VALUES(100,2),(200,2),(300,2),(400,1),(500,2);
SELECT min(a) FROM t14 WHERE b='2' AND a>'50';
} {100}
do_execsql_test 14.2 {
CREATE INDEX t14ba ON t14(b,a);
SELECT min(a) FROM t14 WHERE b='2' AND a>'50';
} {100}
finish_test
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