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Overview
| Comment: | Defer the {quote: MoveTo} opcode in VDBE until the data is actually needed. Sometimes the data is never needed, resulting in a performance increase. On an indexed order search with a large OFFSET, queries times can be an order of magnitude faster. (CVS 1165) |
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| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
d3e96da20d269a068188915b3cc0eb02 |
| User & Date: | drh 2004-01-07 18:52:57.000 |
Context
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2004-01-07
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| 19:24 | Permit sqlite_exec() to be called from within user-defined functions. (CVS 1166) (check-in: 03636c94a5 user: drh tags: trunk) | |
| 18:52 | Defer the {quote: MoveTo} opcode in VDBE until the data is actually needed. Sometimes the data is never needed, resulting in a performance increase. On an indexed order search with a large OFFSET, queries times can be an order of magnitude faster. (CVS 1165) (check-in: d3e96da20d user: drh tags: trunk) | |
| 03:41 | Make it safe to call sqliteMalloc() with a request for 0 bytes. Ticket #534. (CVS 1164) (check-in: 6c858db2c0 user: drh tags: trunk) | |
Changes
Changes to src/vdbe.c.
Changes to src/vdbeInt.h.
Changes to src/vdbeaux.c.