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Avoid redundant constraint checking due to transitive constraints.

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FossilOrigin-Name: 329478cbed06f93652de50abdb31a6b41af02b9e
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drh
2013-05-01 17:22:38 +00:00
parent 9a1eccb621
commit 5c10f3b38e
3 changed files with 8 additions and 7 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Update\sthe\sdocumentation\sto\sexplain\sthat\swhen\sthe\s3rd\sparameter\sto\nsqlite3_bind_text()\sand\sfriends\sis\sNULL\sthe\sresult\sis\sto\sbind\sa\sNULL\nSQL\svalue.\s\sTicket\s[19b44e35753ba] C Avoid\sredundant\sconstraint\schecking\sdue\sto\stransitive\sconstraints.
D 2013-04-30T14:25:32.967 D 2013-05-01T17:22:38.014
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in ce81671efd6223d19d4c8c6b88ac2c4134427111 F Makefile.in ce81671efd6223d19d4c8c6b88ac2c4134427111
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -263,7 +263,7 @@ F src/vtab.c b05e5f1f4902461ba9f5fc49bb7eb7c3a0741a83
F src/wal.c 436bfceb141b9423c45119e68e444358ee0ed35d F src/wal.c 436bfceb141b9423c45119e68e444358ee0ed35d
F src/wal.h a4d3da523d55a226a0b28e9058ef88d0a8051887 F src/wal.h a4d3da523d55a226a0b28e9058ef88d0a8051887
F src/walker.c 4fa43583d0a84b48f93b1e88f11adf2065be4e73 F src/walker.c 4fa43583d0a84b48f93b1e88f11adf2065be4e73
F src/where.c d54e63087b52c309550aa2defdb20ef27add9f9a F src/where.c e36bbfbf565c7a2ce49c5cd3101ca7310cd379af
F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2 F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
F test/aggnested.test 45c0201e28045ad38a530b5a144b73cd4aa2cfd6 F test/aggnested.test 45c0201e28045ad38a530b5a144b73cd4aa2cfd6
@@ -1060,7 +1060,7 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac
P 1c79569226db3d5a73e65a35877635ea8b478866 P bd92de0e8d922b96513c5d431493800dda7e7562
R d47a972814ae8bb4214b1f841a420de6 R 98be73d126ba545d3f3d37ca997eaf1d
U drh U drh
Z 88df79255fe6b8c77c4c16bff1d52cd7 Z df56d0b87948c58bd48a65ece4cb954b

2
manifest.uuid
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@@ -1 +1 @@
bd92de0e8d922b96513c5d431493800dda7e7562 329478cbed06f93652de50abdb31a6b41af02b9e

1
src/where.c
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@@ -4883,6 +4883,7 @@ static Bitmask codeOneLoopStart(
assert( (pTerm->prereqRight & newNotReady)!=0 ); assert( (pTerm->prereqRight & newNotReady)!=0 );
pAlt = findTerm(pWC, iCur, pTerm->u.leftColumn, notReady, WO_EQ|WO_IN, 0); pAlt = findTerm(pWC, iCur, pTerm->u.leftColumn, notReady, WO_EQ|WO_IN, 0);
if( pAlt==0 ) continue; if( pAlt==0 ) continue;
if( pAlt->wtFlags & (TERM_CODED) ) continue;
VdbeNoopComment((v, "begin transitive constraint")); VdbeNoopComment((v, "begin transitive constraint"));
sEq = *pAlt->pExpr; sEq = *pAlt->pExpr;
sEq.pLeft = pE->pLeft; sEq.pLeft = pE->pLeft;