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Overview
| Comment: | Small performance improvement in the LIKE function. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
5fb0c35459cf7a8662bf8cd84ac345f6 |
| User & Date: | drh 2016-06-06 01:48:14 |
Context
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2016-06-06
| ||
| 01:54 | Small performance boost and size decrease in sqlite3BtreeMovetoUnpacked(). (check-in: e106a77d user: drh tags: trunk) | |
| 01:48 | Small performance improvement in the LIKE function. (check-in: 5fb0c354 user: drh tags: trunk) | |
| 01:14 | Btree interface refactoring: (1) The sqlite3BtreeKeySize() interface is renamed to sqlite3BtreeIntegerKey() and modified to work only for table btrees with a rowid. (2) The sqlite3BtreeDataSize() interface is renamed to sqlite3BtreePayloadSize() and modified to work with any btree. (3) The sqlite3BtreeDataFetch() and sqlite3BtreeKeyFetch() routines are combined into a single sqlite3BtreePayloadFetch() routine. The result of these changes is a smaller binary and fewer CPU cycles needed to run queries. (check-in: 2d831074 user: drh tags: trunk) | |
Changes
Changes to src/func.c.
736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 |
return 0;
}
continue;
}
}
c2 = Utf8Read(zString);
if( c==c2 ) continue;
if( noCase && c<0x80 && c2<0x80 && sqlite3Tolower(c)==sqlite3Tolower(c2) ){
continue;
}
if( c==matchOne && zPattern!=zEscaped && c2!=0 ) continue;
return 0;
}
return *zString==0;
}
|
| |
736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 |
return 0;
}
continue;
}
}
c2 = Utf8Read(zString);
if( c==c2 ) continue;
if( noCase && sqlite3Tolower(c)==sqlite3Tolower(c2) && c<0x80 && c2<0x80 ){
continue;
}
if( c==matchOne && zPattern!=zEscaped && c2!=0 ) continue;
return 0;
}
return *zString==0;
}
|