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Overview
| Comment: | New test cases and minor fixes for the optimization on this branch. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | skip-ahead-distinct |
| Files: | files | file ages | folders |
| SHA3-256: |
70ac9ea1a6cb2f4906f00f1a04f668e5 |
| User & Date: | dan 2017-04-13 18:33:33 |
Context
|
2017-04-13
| ||
| 19:48 | Simplification of the skip-ahead-distinct logic. There is still an issue with handling COLLATE. (check-in: 57c5173b user: drh tags: skip-ahead-distinct) | |
| 18:33 | New test cases and minor fixes for the optimization on this branch. (check-in: 70ac9ea1 user: dan tags: skip-ahead-distinct) | |
| 13:01 | Only use the skip-ahead-distinct optimization if the index has been analyzed and we know that a skip-head is likely to skip over at least 11 rows. The magic number 11 was determined by experimentation. (check-in: 0cf16dec user: drh tags: skip-ahead-distinct) | |
Changes
Changes to src/where.c.
Changes to test/distinct2.test.