This Day In History For 2018-06-06
1 Year Ago (more context)
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2017-06-06
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| 18:22 | Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. (check-in: 802b82f342 user: drh tags: branch-3.8.9) | |
| 18:20 | Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. (check-in: 234ede26e3 user: drh tags: trunk) | |
| 16:14 | Fix a threading problem in lsm test code. (check-in: 501238b9fb user: dan tags: lsm-vtab) | |
2 Years Ago (more context)
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2016-06-06
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| 20:36 | In winFullPathname, translate '/X:' to 'X:' before doing anything else. (check-in: e404ad705d user: mistachkin tags: trunk) | |
| 20:27 | Translate filenames of the form "/c:/*" into just "c:/*" on WinRT and Cygwin. (SQLite has long done this for Win32/WinNT.) (check-in: f8470ffc49 user: drh tags: trunk) | |
| 18:17 | Fix lempar.c so that the shift-reduce optimization works for error processing. This is a Lemon issue only and has no impact on SQLite. (check-in: 3665a2f554 user: drh tags: trunk) | |
| 13:24 | Initialize the yyerrcnt variable in the lemon parser template. This has no effect on SQLite itself. (check-in: 45531654f7 user: drh tags: trunk) | |
| 01:54 | Small performance boost and size decrease in sqlite3BtreeMovetoUnpacked(). (check-in: e106a77d85 user: drh tags: trunk) | |
| 01:48 | Small performance improvement in the LIKE function. (check-in: 5fb0c35459 user: drh tags: trunk) | |
| 01:14 | Btree interface refactoring: (1) The sqlite3BtreeKeySize() interface is renamed to sqlite3BtreeIntegerKey() and modified to work only for table btrees with a rowid. (2) The sqlite3BtreeDataSize() interface is renamed to sqlite3BtreePayloadSize() and modified to work with any btree. (3) The sqlite3BtreeDataFetch() and sqlite3BtreeKeyFetch() routines are combined into a single sqlite3BtreePayloadFetch() routine. The result of these changes is a smaller binary and fewer CPU cycles needed to run queries. (check-in: 2d831074cf user: drh tags: trunk) | |
3 Years Ago (more context)
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2015-06-06
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| 20:12 | Split out the bulk of the actual VDBE code generation logic from where.c into a new file, leaving behind the analysis logic. This makes the original where.c smaller and hopefully easier to edit. (check-in: faa0e420e9 user: drh tags: view-optimization) | |
| 19:23 | Fix a comment in fts5.h. (check-in: e964b58774 user: dan tags: fts5) | |
| 18:30 | Code simplifications in select.c and where.c. (check-in: 4f20ac90bc user: drh tags: view-optimization) | |
| 16:28 | Fix handling of fts5 rowid constraints in the absence of a MATCH clause. Add tests to cover recently added branches. (check-in: 3a9cb64813 user: dan tags: fts5) | |
| 00:18 | Minor cleanup of the sqlite3Select() procedure. (check-in: f4c90d06bb user: drh tags: view-optimization) | |
4 Years Ago (more context)
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2014-06-06
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| 20:49 | Add a test case to ensure that estLog() works for negative numbers. (check-in: 813469d985 user: drh tags: trunk) | |
| 20:20 | Make sure the estLog() routine in the query planner handles negative values correctly (always returning 1). Prior to this change, estLog(-1) would return a large number which could throw off the cost computations in the query planner in obscure circumstances. (check-in: 75437bee49 user: drh tags: trunk) | |
| 17:09 | Fix an obsolete comment on the whereRangeScanEst() routine. No changes to code. (check-in: b16bf8518b user: drh tags: trunk) | |
5 Years Ago (more context)
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2013-06-06
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| 23:44 | Performance improvements. (check-in: 9f8e84ab98 user: drh tags: nextgen-query-plan-exp) | |
| 23:02 | Improved management of the space to hold WhereLoop.aLTerm[]. (check-in: d4141ecbea user: drh tags: nextgen-query-plan-exp) | |
| 19:25 | Remove some commented-out code that was mistakenly left in the previous check-in. (check-in: b4a5dbad36 user: drh tags: nextgen-query-plan-exp) | |
| 19:16 | Clean up and reorganize the elements of the various objects in the analysis tree for the NGQP. (check-in: bfc76ae1e9 user: drh tags: nextgen-query-plan-exp) | |
10 Years Ago (more context)
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2008-06-06
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| 16:14 | Avoid attempting to delete the journal file of a temporary pager when closing the pager. It will be deleted automatically by the OS layer. (CVS 5193) (check-in: de8b87d65a user: danielk1977 tags: trunk) | |
| 15:49 | Add the xGetLastError() member function to the sqlite3_vfs structure. It is neither called nor implemented at this point. (CVS 5192) (check-in: b8f1da52c3 user: danielk1977 tags: trunk) | |
| 15:04 | Remove the subroutine return stack from the VDBE. Return addresses for subroutines are now stored in registers. (CVS 5191) (check-in: ef1956eebc user: drh tags: trunk) | |
| 11:11 | Remove the xGetTempname() method from the vfs structure. Temp files are now opened by passing a NULL pointer as the filename to xOpen(). (CVS 5190) (check-in: 5173b3e816 user: danielk1977 tags: trunk) | |
15 Years Ago (more context)
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2003-06-06
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| 19:00 | Extend the authorization mechanism to disallow the ATTACH and DETACH commands. Ticket #340. (CVS 1010) (check-in: a97dca73ae user: drh tags: trunk) | |
| 16:13 | Add btree_rb.c and opcodes.c to the source built by the "target_source" target of the main makefile. (CVS 1009) (check-in: 0954697299 user: drh tags: trunk) | |
| 15:44 | Add a prototype for the sqlite_vmprintf() function to sqlite.h. (CVS 1008) (check-in: 048cf55c7d user: drh tags: trunk) | |