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37 check-ins for the month beginning 2005-07-01
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2005-07-29
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| 19:43 | Fix problems caused by over-agressive optimization of ORDER BY in joins. Lots more testing needed. (CVS 2571) (check-in: 1a4e526d46 user: drh tags: trunk) | |
| 15:36 | Fix authentication so that it works with AS aliases. Ticket #1338. (CVS 2570) (check-in: cc7ae73ed0 user: drh tags: trunk) | |
| 15:10 | Optimizer now converts OR-connected WHERE-clause terms into an IN operator so that they can be used with indices. There are known problems with the ORDER BY optimization in this and in several prior check-ins. This check-in is not recommended for production use. (CVS 2569) (check-in: d23c8bf81e user: drh tags: trunk) | |
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2005-07-28
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| 23:12 | The BETWEEN operator in a WHERE clause is now able to use indices. (CVS 2568) (check-in: cdf8c9584b user: drh tags: trunk) | |
| 20:51 | Test cases and tuning of the new optimizer code. (CVS 2567) (check-in: 4b02703dec user: drh tags: trunk) | |
| 16:51 | The new optimizer now passes all regression tests. (CVS 2566) (check-in: a212128433 user: drh tags: trunk) | |
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2005-07-27
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| 20:41 | More work on the new optimizer. Fewer tests fail now. (CVS 2565) (check-in: ee3a08e353 user: drh tags: trunk) | |
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2005-07-23
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| 22:59 | A new optimizer that breaks a lot of tests. But none of them critically, I think. Nevertheless, there is a lot of work ahead to stabilize the code. (CVS 2564) (check-in: 86ce56ccea user: drh tags: trunk) | |
| 14:52 | Store the total number of rows as part of the ANALYZE statistics. (CVS 2563) (check-in: 868279c78e user: drh tags: trunk) | |
| 03:18 | The results of ANALYZE are now loaded into internal data structures where they can be used. But they are not actually used yet. (CVS 2562) (check-in: 1996bacfb9 user: drh tags: trunk) | |
| 02:17 | Full-coverage testing and documentation for the ANALYZE command. The results of analysis are still not loaded or used, however. (CVS 2561) (check-in: bd7583a5d6 user: drh tags: trunk) | |
| 00:41 | First code for the ANALYZE command. Mostly untested. The analysis is not loaded into the symbol tables and is not used by the optimizer. (CVS 2560) (check-in: a4886b114d user: drh tags: trunk) | |
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2005-07-22
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| 23:56 | Clarify the meaning of the TEMP keyword on CREATE TABLE. (CVS 2559) (check-in: 1a573619f5 user: drh tags: trunk) | |
| 22:53 | Correct the documentation to show that sqlite3_column_text() returns a NULL pointer (not an empty string) when the column value is NULL. The same goes for sqlite3_column_blob(). Ticket #1334. (CVS 2558) (check-in: fd1e013a14 user: drh tags: trunk) | |
| 00:31 | Begin adding code to support multiple IN constraints on the same index. (CVS 2557) (check-in: 103f8ccb90 user: drh tags: trunk) | |
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2005-07-21
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| 18:23 | Split the OP_Integer opcode into OP_Integer and OP_Int64. This allows comments to be added to OP_Integer. Cleanup in the optimizer. Allow terms of the FROM clause to be reordered automatically. (CVS 2556) (check-in: e2f822ac82 user: drh tags: trunk) | |
| 03:48 | Add comments to test cases. Improvements to the query plan test variable. (CVS 2555) (check-in: ef3a157f46 user: drh tags: trunk) | |
| 03:15 | In where.c, split out the code that selects an index into a separate subroutine. (CVS 2554) (check-in: c30cbba9ea user: drh tags: trunk) | |
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2005-07-20
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| 14:31 | Extra memory usage instrumentation added. (CVS 2553) (check-in: ac669f56c0 user: drh tags: trunk) | |
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2005-07-19
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| 22:22 | More refactoring in where.c. (CVS 2552) (check-in: a35bd50af8 user: drh tags: trunk) | |
| 17:38 | Refactoring of the query optimizer in advance of adding better optimization. (CVS 2551) (check-in: 57c6bd3760 user: drh tags: trunk) | |
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2005-07-16
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| 13:33 | Allow an unlimited number of terms in the WHERE clause. The old limit was 100. (CVS 2550) (check-in: ca69f36832 user: drh tags: trunk) | |
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2005-07-15
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| 23:24 | Fix bugs in the new query plan instrumention logic. (CVS 2549) (check-in: 578490c913 user: drh tags: trunk) | |
| 13:05 | Add test instrumentation that will be needed during the development of forthcoming optimizer enhancements. (CVS 2548) (check-in: dfd5fd77b0 user: drh tags: trunk) | |
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2005-07-09
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| 23:11 | Add remark in the changelog that mentions 64-bit alignment fixes in 3.2.2. (CVS 2547) (check-in: ead583cfad user: drh tags: trunk) | |
| 02:39 | Fix a comment error. No changes to code. Ticket #1320. (CVS 2546) (check-in: e050af70ad user: drh tags: trunk) | |
| 02:38 | Use the internal sqlite3_snprintf function instead of sprintf to avoid cross-platform incompatibilities. Ticket #1316. (CVS 2545) (check-in: 431999da7b user: drh tags: trunk) | |
| 02:23 | Patch to Makefile.in so that it works with OS X. Ticket #1292. (CVS 2544) (check-in: 0dfabca641 user: drh tags: trunk) | |
| 02:16 | Make sure there is only one busy counter. Ticket #1315. (CVS 2543) (check-in: af2a0ba4a3 user: drh tags: trunk) | |
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2005-07-08
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| 18:25 | Allow the IN operator to take a list of arbitrary expressions on its right-hand side. The expressions no longer need to be constant. The current implementation seems to work but needs more testing and optimization. (CVS 2542) (check-in: ba56478dd8 user: drh tags: trunk) | |
| 17:13 | Change the name of the OpenTemp opcode to OpenVirtual which is more descriptive of what it does. (CVS 2541) (check-in: 3bb9ce5f20 user: drh tags: trunk) | |
| 14:14 | Add the EP_OptOnly flag on expressions for WHERE clause terms that are added by the optimizer but should not be coded. (CVS 2540) (check-in: f4a66ed04d user: drh tags: trunk) | |
| 13:53 | Add the SQLITE_CASE_SENSITIVE_LIKE compile-time option. (CVS 2539) (check-in: b72bff81f9 user: drh tags: trunk) | |
| 13:08 | Replace OP_List with OP_Fifo. This is the first step toward allowing recursive delete triggers and later foreign keys with cascading deletes. (CVS 2538) (check-in: 94c120bb78 user: drh tags: trunk) | |
| 12:13 | Add infrastructure for the ANALYZE command. Does not yet actually do anything. (CVS 2537) (check-in: 05b6ac9a76 user: drh tags: trunk) | |
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2005-07-06
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| 13:51 | Fix a quoting problem in the configure script. (CVS 2536) (check-in: b34647a2eb user: drh tags: trunk) | |
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2005-07-01
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| 11:38 | Fix typos in comments. No changes to code. (CVS 2535) (check-in: d3b03495a4 user: drh tags: trunk) | |