This Day In History For 2021-01-28
1 Year Ago (more context)
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2020-01-28
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| 20:27 | Faster decoding of 32-bit variable-length integers in cases were we do not need to know the number of bytes in the encoding. (check-in: 59a31b16b5 user: drh tags: trunk) | |
| 20:09 | Small performance improvement to the key-comparision routine for strings. (check-in: 41454499a2 user: drh tags: trunk) | |
| 18:09 | Reinstate the optimization of converting "a IN (C)" into "a=C" but only if C is a constant. If the RHS is a table column, the complications of managing affinity and collations become too involved to mess with. (check-in: 8ac26a23d7 user: drh tags: trunk) | |
| 16:55 | Fix a 4 byte OOB read in test_multiplex.c. (check-in: 912148913c user: dan tags: trunk) | |
| 15:02 | Minor change for compatibility with the s390 architecture. (check-in: 04885763c4 user: drh tags: trunk) | |
2 Years Ago (more context)
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2019-01-28
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| 19:06 | Fix the query planner so that it is able to use an index on a CAST expression. (check-in: 2c886f3d49 user: drh tags: trunk) | |
| 18:58 | Fix a performance regression caused by the previous commit. (Closed-Leaf check-in: c4db0ad12d user: drh tags: index-on-cast) | |
| 18:08 | Make indexes on CAST(...) expressions work. (check-in: 3ef711d98f user: dan tags: index-on-cast) | |
| 16:50 | Fix a buffer overread in fts3 that could occur when accessing a corrupt database. (check-in: a9faf90339 user: dan tags: trunk) | |
| 13:27 | Do not assume that text parameters passed to fts4aux queries do not contain embedded nul characters. (check-in: df04859a99 user: dan tags: trunk) | |
| 11:54 | Add a new test case to fuzzdata8.db. (check-in: ce8e279a7d user: drh tags: trunk) | |
| 00:42 | Change the definition of the BtCursor.skipNext field so that it is undefined for states CURSOR_VALID and CURSOR_INVALID. (check-in: 6089d5dba7 user: drh tags: trunk) | |
4 Years Ago (more context)
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2017-01-28
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| 20:46 | In the amalgamation, allocate the parser engine object from stack rather than from heap, for improved performance. This only happens in the amalgamation, since otherwise the sqlite3RunParser() routine does not know the object size. (check-in: 4fe879d4b5 user: drh tags: trunk) | |
| 19:53 | Fix a couple comment typos. No changes to code. (check-in: 2a2e7d86b2 user: mistachkin tags: trunk) | |
| 19:45 | Avoid redundant table b-tree cursor seeks in UPDATE statements that use the two-pass strategy. (check-in: dc555b1039 user: dan tags: trunk) | |
| 15:26 | Updates to the sqlite3_blob documentation. No changes to code. (check-in: 426b440a57 user: drh tags: trunk) | |
| 13:40 | In the speed-check.sh script, automatically invoke "fossil test-diff --tk" on the cachegrind output against trunk, if not generating a trunk run. (check-in: aa1ab37100 user: drh tags: trunk) | |
| 06:50 | Fix a typo in the docs for sqlite3_update_hook(). (check-in: 7c029655cc user: dan tags: trunk) | |
5 Years Ago (more context)
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2016-01-28
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| 18:22 | Modify the order of terms in an "if" condition to avoid implicitly comparing a dangling pointer to NULL following an OOM error. (check-in: 5372f80083 user: dan tags: trunk) | |
| 17:06 | Modifications to ensure the nExtraDelete-related assert() statement does not fail. (check-in: f43ff8f82d user: dan tags: fordelete-assert) | |
| 08:58 | Remove a duplicate "p->magic = VDBE_MAGIC_RUN;" line from vdbeaux.c. (check-in: 688eb3b400 user: dan tags: trunk) | |
| 02:47 | Fix for pthread detection in the configure scripts. (check-in: 47633ffdbf user: drh tags: trunk) | |
| 00:08 | • Edit [1edd5f31b9e6f91b|1edd5f31b9]: Edit check-in comment. (artifact: 9218526e3e user: mistachkin) | |
| 00:04 | Minor correction to the batch tool changes in the previous check-in. (check-in: 7c89d75de1 user: mistachkin tags: trunk) | |
10 Years Ago (more context)
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2011-01-28
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| 17:03 | • Edit [38ca1daa2347eedb|38ca1daa23]: Move to branch mistake. Change background color to "#d3b5a8". Mark "Closed". Edit check-in comment. (artifact: 1b078bb303 user: drh) | |
| 17:02 | Bogus release candidate. (Closed-Leaf check-in: 38ca1daa23 user: drh tags: mistake) | |
| 16:45 | Add test script pagerfault3.test. No changes to code or existing tests. (check-in: 682fe41efd user: dan tags: trunk) | |
| 15:46 | Change pager_truncate() to a different method for extending files while also ensuring that writes are page-size and page-aligned. (check-in: 874bc8844f user: drh tags: trunk) | |
| 15:07 | When extending a database file, do so by writing one or more page-size chunks of data to the file, instead of just a single byte to the end. (check-in: 58577135a8 user: dan tags: trunk) | |
| 03:13 | Reactivate the analyze5.test script. (Closed-Leaf check-in: a2a9f6401c user: drh tags: stat2-enhancement) | |
| 01:57 | Change the weighting of binary searches on tables to 1/10th the cost of a search on an index. Change the assumed reduction in search space from a indexed range constraint from 1/3rd to 1/4th. Do not let the estimated number of rows drop below 1. (check-in: 4847c6cb71 user: drh tags: stat2-enhancement) | |