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Use memcmp() instead of the BINARY collating function where possible, for 

a performance boost.

FossilOrigin-Name: c5a3a1af3c7bd34886e944a1fef2f6340ded24a0
This commit is contained in:
drh 2013-12-06 22:45:31 +00:00
parent 72b8ef6ce3
commit b8a9bb4fb9
3 changed files with 10 additions and 9 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Remove\ssome\scommented-out\scode\sfrom\ssqlite3BtreeMovetoUnpacked()\sto\stry\sto\smake\nit\smore\sreadable.
D 2013-12-06T22:44:51.968
C Use\smemcmp()\sinstead\sof\sthe\sBINARY\scollating\sfunction\swhere\spossible,\sfor\na\sperformance\sboost.
D 2013-12-06T22:45:31.452
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in e1a9b4258bbde53f5636f4e238c65b7e11459e2b
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@ -169,7 +169,7 @@ F src/btmutex.c 976f45a12e37293e32cae0281b15a21d48a8aaa7
F src/btree.c 1c1228bfeff3142c3d30f37f41c62e1e1456a04b
F src/btree.h a61ddebc78c66795a2b93181321a116746302cc9
F src/btreeInt.h f038e818bfadf75afbd09819ed93c26a333d39e0
F src/build.c 1965c7b596ca6295b7ca59541ad186c57564b8f7
F src/build.c 9b40580b62916612678bdb69ce0286e39c29a862
F src/callback.c f99a8957ba2adf369645fac0db09ad8adcf1caa2
F src/complete.c dc1d136c0feee03c2f7550bafc0d29075e36deac
F src/ctime.c 77779efbe78dd678d84bfb4fc2e87b6b6ad8dccd
@ -1145,7 +1145,7 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
P 27392118af4c38c5203a04b8013e1afdb1cebd0d
R 37ccd3e8b8d51b4fffcef9ee439c7da2
P 2d62d1131f8bbc4e1f8f7aeaf0d91e3237fe3b7c
R 64ecaeb699cffb8c7d50ef92ad2b85dd
U drh
Z b12a0af0516653b272442a79b4596fc8
Z 924fa8368d7b3d9057325dee3400f3cb

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@ -1 +1 @@
2d62d1131f8bbc4e1f8f7aeaf0d91e3237fe3b7c
c5a3a1af3c7bd34886e944a1fef2f6340ded24a0

5
src/build.c
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@ -4183,8 +4183,9 @@ KeyInfo *sqlite3KeyInfoOfIndex(Parse *pParse, Index *pIdx){
assert( sqlite3KeyInfoIsWriteable(pKey) );
for(i=0; i<nCol; i++){
char *zColl = pIdx->azColl[i];
if( NEVER(zColl==0) ) zColl = "BINARY";
pKey->aColl[i] = sqlite3LocateCollSeq(pParse, zColl);
assert( zColl!=0 );
pKey->aColl[i] = strcmp(zColl,"BINARY")==0 ? 0 :
sqlite3LocateCollSeq(pParse, zColl);
pKey->aSortOrder[i] = pIdx->aSortOrder[i];
}
if( pParse->nErr ){