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This additional fix prevents a partial index from being qualified for use 

if the constraint that qualifies the partial index is part of the ON clause of
a LEFT JOIN.

FossilOrigin-Name: 1a1516e4da26dcee35e6fbb6604ce252faf3d116
This commit is contained in:
drh 2015-02-24 16:48:59 +00:00
parent 36f65bafe5
commit 077f06edfa
4 changed files with 23 additions and 9 deletions
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14
manifest
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@ -1,5 +1,5 @@
C Make\ssure\spartial\sautomatic\sindexes\sare\snot\sbased\son\sterms\sin\sthe\sON\sclause\nof\sa\sLEFT\sJOIN.\s\sFix\sfor\sticket\s[2326c258d02ead3].
D 2015-02-24T16:05:54.976
C This\sadditional\sfix\sprevents\sa\spartial\sindex\sfrom\sbeing\squalified\sfor\suse\s\nif\sthe\sconstraint\sthat\squalifies\sthe\spartial\sindex\sis\spart\sof\sthe\sON\sclause\sof\na\sLEFT\sJOIN.
D 2015-02-24T16:48:59.496
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 6b9e7677829aa94b9f30949656e27312aefb9a46
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@ -306,7 +306,7 @@ F src/vtab.c 699f2b8d509cfe379c33dde33827875d5b030e01
F src/wal.c 39303f2c9db02a4e422cd8eb2c8760420c6a51fe
F src/wal.h df01efe09c5cb8c8e391ff1715cca294f89668a4
F src/walker.c c253b95b4ee44b21c406e2a1052636c31ea27804
F src/where.c 59ab7da73b0de376d945c96c2867a1d550686717
F src/where.c 88509f19a64a36e1c22a1dbdac74ee1a62d99dc3
F src/whereInt.h d3633e9b592103241b74b0ec76185f3e5b8b62e0
F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
@ -350,7 +350,7 @@ F test/autoinc.test c58912526998a39e11f66b533e23cfabea7f25b7
F test/autoindex1.test 6ff78b94f43a59616c06c11c55b12935173506d7
F test/autoindex2.test af7e595c6864cc6ef5fc38d5db579a3e34940cb8
F test/autoindex3.test a3be0d1a53a7d2edff208a5e442312957047e972
F test/autoindex4.test 364be4c1654267720aa537beba4ef0ca4d7f60d9
F test/autoindex4.test 49d3cd791a9baa16fb461d7ea3de80d019a819cf
F test/autovacuum.test 941892505d2c0f410a0cb5970dfa1c7c4e5f6e74
F test/autovacuum_ioerr2.test 8a367b224183ad801e0e24dcb7d1501f45f244b4
F test/avtrans.test 0252654f4295ddda3b2cce0e894812259e655a85
@ -1239,7 +1239,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
P f8917ba4d917bc762b3b252466ab72a8a70dc0d8
R 3f565b8438472847d9367d99d4186ffd
P c0f4e308a508183b72ceda447dc3ac778cb85b9f
R 4fd07aecba33e9248bb5425721691954
U drh
Z f1617e86199163d366d582f2564e1bac
Z 49115944492618e32f7d86cca0efe1da

2
manifest.uuid
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@ -1 +1 @@
c0f4e308a508183b72ceda447dc3ac778cb85b9f
1a1516e4da26dcee35e6fbb6604ce252faf3d116

6
src/where.c
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@ -4695,7 +4695,11 @@ static int whereUsablePartialIndex(int iTab, WhereClause *pWC, Expr *pWhere){
int i;
WhereTerm *pTerm;
for(i=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){
if( sqlite3ExprImpliesExpr(pTerm->pExpr, pWhere, iTab) ) return 1;
if( sqlite3ExprImpliesExpr(pTerm->pExpr, pWhere, iTab)
&& !ExprHasProperty(pTerm->pExpr, EP_FromJoin)
){
return 1;
}
}
return 0;
}

10
test/autoindex4.test
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@ -68,6 +68,16 @@ do_execsql_test autoindex4-3.0 {
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
} {Item1 Item2}
do_execsql_test autoindex4-3.1 {
CREATE INDEX Items_x1 ON Items(ItemName,Name) WHERE ItemName = 'dummy';
SELECT Items.ItemName
FROM Items
LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
} {Item1 Item2}
finish_test