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Make SQLite slightly more likely to use an auto-index within a sub-query.

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FossilOrigin-Name: ab832336f4a28193c4d2b61e833564822a7b86a8
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dan
2015-03-16 20:40:00 +00:00
parent 05b6048dbd
commit f104abba84
3 changed files with 11 additions and 11 deletions
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14
manifest
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@@ -1,5 +1,5 @@
C Fix\stypo\sof\stest\sprefix\sin\sthe\snew\sWHERE\stest\sfile. C Make\sSQLite\sslightly\smore\slikely\sto\suse\san\sauto-index\swithin\sa\ssub-query.
D 2015-03-16T18:08:56.916 D 2015-03-16T20:40:00.496
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 88a3e6261286db378fdffa1124cad11b3c05f5bb F Makefile.in 88a3e6261286db378fdffa1124cad11b3c05f5bb
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -307,7 +307,7 @@ F src/vxworks.h c18586c8edc1bddbc15c004fa16aeb1e1342b4fb
F src/wal.c 39303f2c9db02a4e422cd8eb2c8760420c6a51fe F src/wal.c 39303f2c9db02a4e422cd8eb2c8760420c6a51fe
F src/wal.h df01efe09c5cb8c8e391ff1715cca294f89668a4 F src/wal.h df01efe09c5cb8c8e391ff1715cca294f89668a4
F src/walker.c c253b95b4ee44b21c406e2a1052636c31ea27804 F src/walker.c c253b95b4ee44b21c406e2a1052636c31ea27804
F src/where.c 5ca2899f280c4259a07816f4395d0bea368cfbd7 F src/where.c 42ce3fd5ec9fe050f623be358cfddee01c1f6286
F src/whereInt.h cbe4aa57326998d89e7698ca65bb7c28541d483c F src/whereInt.h cbe4aa57326998d89e7698ca65bb7c28541d483c
F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2 F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
@@ -1245,7 +1245,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
P 8bdda827a3d268009297a0216e3d94bf0eceeb2e P 34779c528f1817d6ec34216b58fb4277956b5167
R 5cfb4e6342c564787ed07b1b1007b605 R 20e702b8205b517ce2cb7b49f472a434
U mistachkin U dan
Z 76cd4818fe183f76c64a28733f84e037 Z 33f45126f2bf7daffd881933acc4eaa9

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34779c528f1817d6ec34216b58fb4277956b5167 ab832336f4a28193c4d2b61e833564822a7b86a8

6
src/where.c
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@@ -6001,10 +6001,10 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){
/* Seed the search with a single WherePath containing zero WhereLoops. /* Seed the search with a single WherePath containing zero WhereLoops.
** **
** TUNING: Do not let the number of iterations go above 25. If the cost ** TUNING: Do not let the number of iterations go above 28. If the cost
** of computing an automatic index is not paid back within the first 25 ** of computing an automatic index is not paid back within the first 28
** rows, then do not use the automatic index. */ ** rows, then do not use the automatic index. */
aFrom[0].nRow = MIN(pParse->nQueryLoop, 46); assert( 46==sqlite3LogEst(25) ); aFrom[0].nRow = MIN(pParse->nQueryLoop, 48); assert( 48==sqlite3LogEst(28) );
nFrom = 1; nFrom = 1;
assert( aFrom[0].isOrdered==0 ); assert( aFrom[0].isOrdered==0 );
if( nOrderBy ){ if( nOrderBy ){