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Overview
| Comment: | Smaller and faster vdbeSorterCompareText(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
542dc4c5eb87017fe03b6c181e779993 |
| User & Date: | drh 2017-05-27 22:42:36 |
Context
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2017-05-29
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| 03:48 | Improve shell help text for the '.open' command. (check-in: 7cc940a9 user: mistachkin tags: trunk) | |
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2017-05-27
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| 22:42 | Smaller and faster vdbeSorterCompareText(). (check-in: 542dc4c5 user: drh tags: trunk) | |
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2017-05-25
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| 21:35 | Small performance increase and size decrease in the btreeInitPage() routine. (check-in: 6f415833 user: drh tags: trunk) | |
Changes
Changes to src/vdbesort.c.
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const u8 * const v1 = &p1[ p1[0] ]; /* Pointer to value 1 */ const u8 * const v2 = &p2[ p2[0] ]; /* Pointer to value 2 */ int n1; int n2; int res; getVarint32(&p1[1], n1); n1 = (n1 - 13) / 2; getVarint32(&p2[1], n2); n2 = (n2 - 13) / 2; res = memcmp(v1, v2, MIN(n1, n2)); if( res==0 ){ res = n1 - n2; } if( res==0 ){ if( pTask->pSorter->pKeyInfo->nField>1 ){ res = vdbeSorterCompareTail( |
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const u8 * const v1 = &p1[ p1[0] ]; /* Pointer to value 1 */ const u8 * const v2 = &p2[ p2[0] ]; /* Pointer to value 2 */ int n1; int n2; int res; getVarint32(&p1[1], n1); getVarint32(&p2[1], n2); res = memcmp(v1, v2, (MIN(n1, n2) - 13)/2); if( res==0 ){ res = n1 - n2; } if( res==0 ){ if( pTask->pSorter->pKeyInfo->nField>1 ){ res = vdbeSorterCompareTail( |