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200 most recent check-ins using file ext/fts3/fts3_unicode.c version 4b9af615
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2024-04-02
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| 18:48 | Fix typos in comments. Provided ".wheretrace" debugging output for the interstage heuristic module. Do omit automatic index loops in the interstage heuristic. (Leaf check-in: 357d9513 user: drh tags: branch-3.28) | |
| 18:31 | Fix table-valued functions so that they will work as the right table in a LEFT JOIN. Ticket [2ae0c599b735d59e] (check-in: 1f97086d user: drh tags: branch-3.28) | |
| 11:54 | Add a heuristic in between the two solver() passes of the query planner that tries to prevent a very slow query plan in cases where the output row count estimate is imprecise. (check-in: 74b247d9 user: drh tags: branch-3.28) | |
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2023-11-29
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| 16:26 | Fix a duplicate assert() caused by the second cherrypick in the previous check-in. (check-in: f10d4fc4 user: drh tags: branch-3.28) | |
| 16:07 | Remove Window objects from the corresponding Select.pWin list when they are deleted, as they are, for example, when the ORDER BY clause is optimized out. (check-in: f9c6e6a7 user: drh tags: branch-3.28) | |
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2023-10-19
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| 21:05 | Ensure that when an ephemeral cursor is reopened with a second invocation of to OP_OpenEphemeral, the sequence counter is reset and the cache marked as stale. Fix for [9cdc5c46]. (check-in: d4bfa8d2 user: drh tags: branch-3.28) | |
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2023-09-15
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| 20:04 | Drop support for the view-scan optimization as it was causing multiple performance regressions. In its place, reduce the estimated row count for DISTINCT subsqueries by a factor of 8. (check-in: 796a65fa user: drh tags: branch-3.28) | |
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2023-02-26
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| 11:52 | In the omit-unused-subquery-columns optimization, be sure to remove the EP_Skip and EP_Unlikely flags from the result set expressions that get nulled-out. dbsqlfuzz bf1d3ed6e0e0dd8766027797d43db40c776d2b15. Also fix an incorrect ".selecttrace" code block. (check-in: 83a7f13e user: drh tags: branch-3.28) | |
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2023-02-16
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| 21:01 | Fix an #ifdef that uses a different macro name from the main branch. (check-in: ad6ac5d3 user: drh tags: branch-3.28) | |
| 19:04 | Back-port omit-unused-subquery-column enhancements into the 3.28 branch. (check-in: 57a4e91f user: drh tags: branch-3.28) | |
| 14:29 | Do not compute result columns of subqueries that are never used. Make those columns NULL instead. This optimization potentially resolves the enhancement request described by [ticket baa5bb76c35a124c]. (check-in: 0163b697 user: drh tags: branch-3.28) | |
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2022-10-24
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| 13:50 | Improve the ability of the query planner to recognize covering indexes even on tables with more than 63 columns and where the index is over columns beyond the 63rd column. (check-in: 3d1992de user: drh tags: branch-3.28) | |
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2022-10-19
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| 11:22 | If a query uses an index where one or more of the columns of the index is an expression and if the corresponding expression is used elsewhere in the query, then strive to read the value of the expression out of the index, rather than recomputing it. This is the "Indexed Expression Optimizations". (check-in: 3da10328 user: drh tags: branch-3.28) | |
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2022-09-01
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| 10:41 | In the query planner, add a heuristic that will reduce the cost of a full table scan for a materialized view or subquery if the full scan is the outer-most loop. This is shown to speed up some queries. (check-in: e3754cc1 user: drh tags: branch-3.28) | |
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2022-08-10
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| 17:03 | Merge the branch-3.28a fixes into branch-3.28. (check-in: ba6bf331 user: drh tags: branch-3.28) | |
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2022-08-09
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| 20:22 | Fix a rounding error caused by scalar->logarithm->scalar conversion when using stat4 data to estimate some range scans. (check-in: 68d86f2b user: drh tags: branch-3.28) | |
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2021-08-11
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| 18:56 | Fix an RBU problem with restarting an update after the *-oal file is already larger than 4GiB. (Leaf check-in: 56869f54 user: dan tags: rbu-replace-hack) | |
| 18:44 | If the special "sqlite_rbu_replace_hack" table is present in an RBU database, use REPLACE instead of INSERT when writing index entries to imposter tables. (check-in: 4b73e151 user: dan tags: rbu-replace-hack) | |
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2021-07-13
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| 15:30 | Remove two incorrect assert() statements from the logic used to derive column names and types from subqueries. This allows the SQL associated with CVE-2020-13871 (ticket [c8d3b9f0a750a529]) to be tested. (Closed-Leaf check-in: d2e67220 user: dan tags: branch-3.28a) | |
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2021-07-12
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| 15:00 | Fix a defect in the query-flattener optimization identified by ticket [8f157e8010b22af0]. This fix is associated with CVE-2020-15358. (Leaf check-in: bcd014c4 user: dan tags: branch-3.32a) | |
| 14:38 | Fix a defect in the query-flattener optimization identified by ticket [8f157e8010b22af0]. This fix is associated with CVE-2020-15358. (check-in: 9e001b63 user: dan tags: branch-3.28a) | |
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2021-03-12
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| 18:24 | Attempt to use an index for DISTINCT aggregate queries that have GROUP BY clauses. (check-in: 3bca003c user: dan tags: distinct-agg-opt) | |
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2021-03-10
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| 19:32 | Fix further sanitizer complaints in the fts5 code. (check-in: 4cb00b9d user: dan tags: trunk) | |
| 18:21 | Improved testcase() related the SQLITE_MAX_ATTACHED vs. SQLITE_MAX_DB problem. (check-in: 27d3c00e user: drh tags: trunk) | |
| 17:52 | Improvement to the ATTACH-abuse authorizer logic in fuzzcheck. (check-in: 88132f69 user: drh tags: trunk) | |
| 17:43 | Do not run avfs.test when testing SQLITE_OMIT_VIRTUALTABLE builds. (check-in: 2ab6957a user: dan tags: trunk) | |
| 16:35 | Do not confuse the constant SQLITE_MAX_ATTACHED with the maximum number of schemas. Add the new SQLITE_MAX_DB constant for the maximum number of schemas. Forum post a006d86f72. (check-in: 7b65fb9f user: drh tags: trunk) | |
| 15:10 | Fix test file avfs.test so that it works with SQLITE_DEFAULT_AUTOVACUUM builds. Do not run avfs.test under test permutation "journaltest". (check-in: 2c6078eb user: dan tags: trunk) | |
| 14:57 | Fix a few sanitizer complaints in fts5. (check-in: 4fe4fee0 user: dan tags: trunk) | |
| 10:43 | Fix a problem preventing wapptest from setting SQLITE_ENABLE_LOCKING_STYLE for OSX tests. Also modify the "Sanitize" configuration in releasetest_data.tcl to subsume test item 6g. (check-in: f762d7df user: dan tags: trunk) | |
| 06:06 | When shell has no .ar, fake its effect w.r.t. page_size and table creation/filling. (check-in: 959f5c65 user: larrybr tags: trunk) | |
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2021-03-09
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| 23:38 | Add appendvfs.c to the MSVC makefile. (check-in: a6681fbb user: drh tags: trunk) | |
| 21:20 | Update a comment in btree.h. (check-in: 9645fe1a user: dan tags: trunk) | |
| 20:58 | Fix a bad comment (copy-paste error) in the byte code engine. No code changes. (check-in: 1c017457 user: drh tags: trunk) | |
| 19:52 | Improved comments on the NOT NULL strength reduction optimization. (check-in: a85d7229 user: drh tags: trunk) | |
| 19:32 | Extra comments and testcase() macros associated with the new sqlite3ParserAddCleanup() mechanism. No changes to release builds. (check-in: c3c86911 user: drh tags: trunk) | |
| 17:09 | Add --enable-math to the amalgamation autoconf. On be default. Improved logging of the amalgamation autoconf. (check-in: 85d28b52 user: drh tags: trunk) | |
| 16:47 | Add missing comment to new routine in select.c. (check-in: ef2f0cf2 user: dan tags: distinct-agg-opt) | |
| 16:35 | Math functions are enabled by default in the main configure script. (check-in: b7456e07 user: drh tags: trunk) | |
| 16:06 | Experimental optimization for distinct aggregates (e.g. "SELECT count(DISTINCT <expr) FROM ..."). (check-in: eb919611 user: dan tags: distinct-agg-opt) | |
| 13:53 | Improvements to the configure script. Math functions are enabled by --enable-all. (check-in: c79c6d18 user: drh tags: trunk) | |
| 13:12 | Update the authorizer in fuzzcheck to align with dbsqlfuzz. (check-in: f86d8fae user: drh tags: trunk) | |
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2021-03-08
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| 20:13 | Add tests for too-tiny appended DBs, clarify align macro. (check-in: eb40a8de user: larrybr tags: trunk) | |
| 17:22 | Add test cases for ALTER TABLE. (check-in: 9c9ba36e user: dan tags: trunk) | |
| 17:17 | Fix a bad assert in RENAME COLUMN. dbsqlfuzz 3f0a7245b69cd08617d7d7781ebaedb0fe765a93. (check-in: f13e0d12 user: drh tags: trunk) | |
| 16:29 | Fix a harmless compiler warning in appendvfs.c (check-in: f538961a user: drh tags: trunk) | |
| 16:13 | Enable internal functions for fuzzcheck. (check-in: 79281603 user: drh tags: trunk) | |
| 14:32 | Added test/avfs.test (missing from branch merge for some reason.) (check-in: 08fa6705 user: larrybr tags: trunk) | |
| 14:26 | Merge appendvfs updates and testing. (check-in: 63fcf301 user: larrybr tags: trunk) | |
| 13:45 | Require that the appendvfs suffix mark indicate that the appended database begins at an offset that is a muliple of 512 and that the appended database contains at least 512 bytes. (Leaf check-in: aeb87cc7 user: drh tags: appendvfs_tighten) | |
| 13:30 | Correct the precendence order for rules that determine how a database is opened by appendvfs when a database is appended to another database. (check-in: 92989fc5 user: drh tags: appendvfs_tighten) | |
| 12:59 | Minor comment and formatting changes. (check-in: cf2add06 user: drh tags: appendvfs_tighten) | |
| 01:31 | Add tests for sqlite3 shell with -append flag. (check-in: d1790288 user: larrybr tags: appendvfs_tighten) | |
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2021-03-07
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| 18:55 | Add grow/shrink tests. Fix truncate bug. Make appendvfs.c easier to inspect. (check-in: c9521fa5 user: larrybr tags: appendvfs_tighten) | |
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2021-03-06
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| 23:49 | Merge from trunk. (check-in: 729117cd user: larrybr tags: appendvfs_tighten) | |
| 23:36 | Create initial tests for appendvfs, and make it available as a statically loaded extension. (check-in: 9f33d451 user: larrybr tags: appendvfs_tighten) | |
| 15:13 | Limit parenthesis nesting depth in FTS3 expressions to SQLITE_MAX_EXPR_DEPTH. (check-in: 5ddd8032 user: drh tags: trunk) | |
| 14:46 | Ensure the correct collation sequence is used for comparisons when delimiting a RANGE window. (check-in: 01eae68e user: dan tags: trunk) | |
| 13:28 | Fix a crash in fts3 that could occur when running a NEAR query on a corrupt database. (check-in: 609d9499 user: dan tags: trunk) | |
| 13:02 | Fix a possible NULL pointer dereference when applying a DROP COLUMN to a corrupt database schema. dbsqlfuzz 419aa525df93db6e463772c686ac6da27b46da9e (check-in: 349ccf58 user: drh tags: trunk) | |
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2021-03-05
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| 20:52 | Merge last day of trunk changes, reverify build. (check-in: 1d67ed1c user: larrybr tags: appendvfs_tighten) | |
| 20:46 | Fix appendvfs bug exposed by docsapp build (in docsrc), and tighten/revise published behavior. (check-in: 7f0f2eac user: larrybr tags: appendvfs_tighten) | |
| 18:33 | Modify the SQLITE_DBCONFIG_ENABLE_VIEW option so that it always permits TEMP views, just as SQLITE_DBCONFIG_ENABLE_TRIGGER always permits TEMP triggers. (check-in: 83dab8b3 user: drh tags: trunk) | |
| 15:42 | Fix problems with RETURNING clauses attached to UPDATEs on tables with virtual columns. (check-in: 6b41b136 user: dan tags: trunk) | |
| 15:29 | Fix another problem with RETURNING clauses in UPDATEs against tables with virtual columns. (Closed-Leaf check-in: f0ef5c76 user: dan tags: returning-fix) | |
| 15:10 | Fix an assert() failure that could be triggered by a correlated sub-query in a RETURNING clause. (check-in: 551260c8 user: dan tags: returning-fix) | |
| 14:08 | Fix the processing of implied LIMIT clauses when flattening a compound query. (check-in: 90c6b9fc user: drh tags: trunk) | |
| 09:42 | Create new branch named "appendvfs_tighten" (check-in: 48c968bf user: larrybr tags: appendvfs_tighten) | |
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2021-03-04
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| 19:44 | Mark the NotUsed parameter to the dropColumnFunc() function as unused, to avoid a harmless compiler warning. (check-in: 23459071 user: drh tags: trunk) | |
| 18:34 | Put ALWAYS() on a branch that is now always true because of changes in OOM behavior due to check-in [9adf6e2469d18bc3]. (check-in: 8a1bb9c3 user: drh tags: trunk) | |
| 18:31 | Update shell.c.in so that SQLITE_SHELL_IS_UTF8 is set to 0 if the -municode option is passed to gcc on windows. (check-in: 99e6a0f0 user: dan tags: trunk) | |
| 16:32 | Remove a branch made unreachable by check-in [e893f88750ea64d4]. (check-in: 20d7dc12 user: drh tags: trunk) | |
| 16:10 | Fix a segfault that could occur following an OOM condition. (check-in: 9adf6e24 user: dan tags: trunk) | |
| 16:03 | Earlier detection of a misplaced ORDER BY or LIMIT clause in a compound SELECT. This prevents problems in recursive CTEs with multiple recursive terms in which there is an ORDER BY or LIMIT clause on the last non-recursive term. (check-in: e893f887 user: drh tags: trunk) | |
| 14:18 | Fix a crash that could occur if a sub-select inside an EXISTS expression features an ORDER BY clause containing one or more window functions. (check-in: 9768e7db user: dan tags: trunk) | |
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2021-03-03
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| 19:54 | Merge recent trunk enhancements into the reuse-schema branch. (check-in: 73bf458e user: drh tags: reuse-schema) | |
| 19:41 | Merge in recent enhancements. (check-in: b0fc8ca1 user: drh tags: begin-concurrent-pnu-wal2) | |
| 19:36 | Fix a buffer overrun that could occur in fts5 when running a prefix query against a corrupt db. (check-in: 4da40620 user: dan tags: trunk) | |
| 19:32 | Merge recent trunk enhancements into the wal2 branch. (check-in: 0ae81039 user: drh tags: wal2) | |
| 19:25 | Merge recent trunk enhancemenets into the begin-concurrent-pnu branch. (check-in: 59d3ec29 user: drh tags: begin-concurrent-pnu) | |
| 19:17 | Merge recent trunk changes into the begin-concurrent branch. (check-in: acdafef8 user: drh tags: begin-concurrent) | |
| 16:46 | Remove the --timeout option from the valgrindfuzz Makefile target. (check-in: 3f520b8b user: dan tags: trunk) | |
| 16:00 | Fix a case where fts3 was erroneously reporting corruption. (check-in: e6c7683c user: dan tags: trunk) | |
| 14:07 | Fix a harmless assertion fault resulting from [6e6b3729e0549de0] that was discovered by dbsqlfuzz. Enhance .selecttrace output to show omitted ORDER BY clauses. New dbsqlfuzz test cases added. (check-in: 27a0388a user: drh tags: trunk) | |
| 11:00 | Fix a problem with using ALTER TABLE commands on database schemas that contain expressions of the form "<expr> NOT NULL" or "<expr> IS NULL" that can be evaluated at prepare time. (check-in: d2630ffa user: dan tags: trunk) | |
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2021-03-02
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| 21:07 | Cast a string size variable to 64-bit to avoid any possibility of integer overflow. (check-in: a5940294 user: drh tags: trunk) | |
| 16:27 | Limit the size of the exponent input in the second argument to the ieee754() SQL function, to avoid integer overflow. Ticket [22dea1cfdb9151e4]. (check-in: 99aab32d user: drh tags: trunk) | |
| 13:50 | Change the timeout for test case "valgrindfuzz" from 600 seconds to 1200. (check-in: 7c6aa6f3 user: dan tags: trunk) | |
| 13:36 | Do not run test file windowpushd.test as part of the "no_optimization" permutation. (check-in: 275a75aa user: dan tags: trunk) | |
| 00:42 | Add ALWAYS() to an always-true conditional. (check-in: fa3506db user: drh tags: trunk) | |
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2021-03-01
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| 21:43 | Add #ifndef macros so that the build works again with -DSQLITE_OMIT_AUTHORIZATION and -DSQLITE_OMIT_WINDOWFUNC. (check-in: 9400bdc6 user: drh tags: trunk) | |
| 16:16 | Fix a couple of memory-sanitizer complaints that could be triggered by a corrupt database. (check-in: 39c8686c user: dan tags: trunk) | |
| 16:15 | Fix another msan complain triggered by a corrupt database. (Closed-Leaf check-in: d235d406 user: dan tags: msan-fix) | |
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2021-02-28
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| 08:24 | Initialize extra field in PgHdr1 to fix an msan complaint. (check-in: 4cb2ea57 user: dan tags: msan-fix) | |
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2021-02-27
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| 15:32 | Add OOM test case associated with the fix in the previous commit. (check-in: a631c38d user: dan tags: trunk) | |
| 15:12 | Remove a NEVER() that might sometimes be tree following an OOM. (check-in: ccb8cf52 user: drh tags: trunk) | |
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2021-02-26
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| 21:39 | Fix a segfault that could occur when optimizing a NOT NULL constraint against an IPK column of a sub-query. (check-in: e4d1970e user: dan tags: trunk) | |
| 20:39 | Attempt to optimize "x IS NULL" and "x IS NOT NULL" expressions when x is a column with a NOT NULL constraint. This addresses the performance issue described by forum post a5fc33cf9d8f4ff5. (check-in: de9c86c9 user: dan tags: trunk) | |
| 20:14 | Attempt to optimize "x IS NULL" and "x IS NOT NULL" expressions when x is a column with a NOT NULL constraint. (Closed-Leaf check-in: 5ecd8425 user: dan tags: ifnull-opt) | |
| 15:20 | Minor simplification in resolve.c. (check-in: 310dac34 user: dan tags: trunk) | |
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2021-02-25
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| 18:28 | Fix test case in altercorrupt.test so that it works with SQLITE_ENABLE_OVERSIZE_CELL_CHECK builds. (check-in: 062b338f user: dan tags: trunk) | |
| 18:23 | Fix a problem with UPDATE and DELETE statements that use both INDEXED BY and LIMIT clauses in SQLITE_ENABLE_UPDATE_DELETE_LIMIT builds. (check-in: cc2b4b38 user: dan tags: trunk) | |
| 16:55 | Fix handling of INSERT on views with implicitly named hidden columns in SQLITE_ENABLE_HIDDEN_COLUMNS builds. (check-in: 15795a96 user: dan tags: trunk) | |
| 15:50 | Ensure that tests like "rbu.test" and "notify2.test" that are only run by specific configurations during release testing are run for both release and debug versions of the tests. (check-in: 911df43f user: dan tags: trunk) | |
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2021-02-23
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| 16:40 | When a sub-transaction is released, if no pages required by containing sub-transactions were journaled, truncate the statement journal. This prevents out of control statement journal growth in some cases. See forum thread e78ffd751185a67e for context. (check-in: 23ca2389 user: dan tags: trunk) | |
| 15:53 | Allow WHERE terms to be pushed down into sub-queries that contain window functions, provided that the WHERE term is made up of entirely of constants and copies of expressions found in the PARTITION BY clauses of all window functions in the sub-query. (check-in: 20689468 user: dan tags: trunk) | |
| 15:36 | Further tests for the push-down optimization with window functions. (Closed-Leaf check-in: 4b089f70 user: dan tags: window-functions-pushdown) | |
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2021-02-22
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| 20:56 | Allow WHERE terms to be pushed down into sub-queries that contain window functions, provided that the WHERE term is made up of entirely of constants and copies of expressions found in the PARTITION BY clauses of all window functions in the sub-query. (check-in: dac51f30 user: dan tags: window-functions-pushdown) | |
| 19:57 | Add a few simple test cases for MATERIALIZED and NOT MATERIALIZED. (check-in: 64878124 user: drh tags: trunk) | |
| 16:42 | Implement the MATERIALIZED and NOT MATERIALIZED hints on common table expressions. (check-in: b5a0778c user: drh tags: trunk) | |
| 15:44 | When a sub-transaction is released, if no pages required by containing sub-transactions were journaled, truncate the statement journal. This might prevent out-of-control statement journal growth in some cases. (Closed-Leaf check-in: e36327fb user: dan tags: stmt-jrnl-truncate) | |
| 14:25 | Add an ALWAYS() on a branch that is now unreachable. (Closed-Leaf check-in: ace54c5b user: drh tags: as-materialize-redux) | |
| 11:07 | Fix inverted logic regarding the materialization hint on the push-down optimization. (check-in: b66a4957 user: drh tags: as-materialize-redux) | |
| 03:04 | Add the AS MATERIALIZED and AS NOT MATERIALIZED syntax that works like it does in PostgreSQL. (check-in: a6bb272e user: drh tags: as-materialize-redux) | |
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2021-02-21
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| 23:44 | Materialize any CTE that is used more than once. (check-in: ba59159f user: drh tags: as-materialize-redux) | |
| 21:04 | Rename the "struct SrcList_item" object to the more succinct "SrcItem". This is a symbolic change only. The logic is unmodified. (check-in: bfd5bf2c user: drh tags: trunk) | |
| 01:19 | Simplified resolution of CTE names. Slightly faster and about 100 bytes of code smaller. (check-in: 0d2c992f user: drh tags: trunk) | |
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2021-02-20
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| 21:20 | Performance improvement in resolving the INDEXED BY index name for the common case where there is no INDEXED BY clause. (check-in: 554b286a user: drh tags: trunk) | |
| 19:22 | Fix a case where FTS3/4 could pass a NULL pointer to memcpy() when handling a corrupt db. (check-in: 68bb541a user: dan tags: trunk) | |
| 18:02 | Update sqlite3changeset_apply_v2() so that it handles no-op UPDATE changes (UPDATE changes that modify no columns). This fixes a regression introduced by [e4ccfac09b]. Also modify sqlite3rebaser_rebase() so that it does not output changesets containing such UPDATEs. (check-in: 0288a801 user: dan tags: trunk) | |
| 14:57 | Break out the Cte object from the With object. This will make it simpler to add new kinds of Cte objects (ex: DML statements) and/or MATERIALIZED keywords in the future. It brings trunk into closer alignment with the experimental as-materialize branch. (check-in: f03efe90 user: drh tags: trunk) | |
| 13:36 | Simplification to where.c manually cherrypicked from the as-materialize branch. (check-in: 03805a61 user: drh tags: trunk) | |
| 12:47 | Merge changes from trunk. (Later:) Abandon this line of development. See the as-materialize-redux branch. (Closed-Leaf check-in: 7a90571e user: drh tags: as-materialize) | |
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2021-02-19
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| 18:39 | Fix another problem handling corrupt database files in the ALTER TABLE DROP COLUMN code. (check-in: 9edf2ddc user: dan tags: trunk) | |
| 15:34 | Add tests for ALTER TABLE DROP COLUMN commands. (check-in: 05dbea9b user: dan tags: trunk) | |
| 14:32 | Add support for "ALTER TABLE ... DROP COLUMN ..." commands. (check-in: c844a331 user: dan tags: trunk) | |
| 14:13 | Fix a crash that could occur in ALTER TABLE DROP COLUMN if the sqlite_schema table was corrupt. (Closed-Leaf check-in: 126ee1ec user: dan tags: alter-table-drop-column) | |
| 09:46 | Omit an branch made unreachable by the improved error message from dropping the last column of a table. (check-in: c5719fc5 user: drh tags: alter-table-drop-column) | |
| 09:36 | The COLUMN keyword in ALTER TABLE DROP COLUMN is optional. (check-in: a22f87fb user: drh tags: alter-table-drop-column) | |
| 09:09 | Give a better error message on DROP COLUMN when attempting to drop the last column of a table. (check-in: 5e1f362b user: drh tags: alter-table-drop-column) | |
| 02:30 | Add a NEVER() to an unreachable branch in the DROP COLUMN logic. (check-in: 963f498a user: drh tags: alter-table-drop-column) | |
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2021-02-18
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| 23:53 | Add missing VdbeCoverage() macros. (check-in: 9bb720e6 user: drh tags: alter-table-drop-column) | |
| 23:03 | Enhance renameParseSql() to better handle OOMs. (check-in: 68bcde7a user: drh tags: alter-table-drop-column) | |
| 22:47 | Merge changes from trunk into the alter-table-drop-column branch. (check-in: 9ea64007 user: drh tags: alter-table-drop-column) | |
| 20:27 | Fix DROP COLUMN so that it works even if the user has registered an authorizer callback. (check-in: e5f14418 user: dan tags: alter-table-drop-column) | |
| 19:25 | Fix a problem with schema error detection when processing ALTER TABLE DROP COLUMN commands. (check-in: 565a6fd0 user: dan tags: alter-table-drop-column) | |
| 17:48 | Add test cases for ALTER TABLE DROP COLUMN. (check-in: 204ee5e2 user: dan tags: alter-table-drop-column) | |
| 15:59 | Avoid invoking the update or pre-update hooks during VACUUM operations. (check-in: 3c25cb4a user: dan tags: trunk) | |
| 15:45 | Improvement to the INSERT optimization of check-in [16ac213c57196361] so that it works with SQLITE_ENABLE_HIDDEN_COLUMN but is also easier to maintain and a little faster as well. (check-in: f985a78e user: drh tags: trunk) | |
| 14:27 | Disable the optimization of [16ac213c57196361] when the SQLITE_ENABLE_HIDDEN_COLUMN compile-time option is used, as the optimization does not work in that case. (check-in: 5168b06b user: drh tags: trunk) | |
| 12:18 | Ensure that the pre-update hook is invoked for INSERT operations on WITHOUT ROWID tables that use the xfer optimization. (check-in: 66bbad23 user: dan tags: trunk) | |
| 01:02 | Add missing VdbeCoverage() macros to some of the new RETURNING code. (check-in: 53a53909 user: drh tags: trunk) | |
| 00:59 | Performance optimization in the resolver. (check-in: 1aafb94d user: drh tags: trunk) | |
| 00:26 | Performance optimization in the code generator for INSERT for the common case where the target table has neither generated nor hidden columns. Also fix a redundant (and thus unreachable) branch in the resolver. (check-in: 16ac213c user: drh tags: trunk) | |
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2021-02-17
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| 21:13 | Use the sqlite3ParserAddCleanup() mechanism to ensure that the AggInfo structure associated with an aggregate query is deallocated, for a performance increase and size reduction. (check-in: 7a139967 user: drh tags: trunk) | |
| 20:46 | Fix a problem with OOM error handling in the new code on this branch. (check-in: ea999c9d user: dan tags: alter-table-drop-column) | |
| 20:19 | Merge trunk changes into this branch. (check-in: 0cd5e2f9 user: dan tags: alter-table-drop-column) | |
| 20:08 | Fix various issues with the changes on this branch. Add test cases for the same. (check-in: 10538ec6 user: dan tags: alter-table-drop-column) | |
| 13:19 | Enhance the ".once" and ".output" commands in the CLI so that if the filename argument begins with "|" the name becomes the concatenation of all subsequent arguments. Hence, commands like ".once | open -f" become possible without the need for quotes. (check-in: c46a94a6 user: drh tags: trunk) | |
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2021-02-16
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| 20:43 | Add experimental implementation of ALTER TABLE DROP COLUMN. Only some cases work so far. (check-in: f0217937 user: dan tags: alter-table-drop-column) | |
| 20:32 | Simplification to the resolveAlias() routine. (check-in: 00bead39 user: drh tags: trunk) | |
| 20:01 | New SELECTTRACE macros more clearly deliniate when the query planner is invoked in the middle of PRAGMA vdbe_addoptrace output. (check-in: 7c03ce49 user: drh tags: trunk) | |
| 19:29 | Remove unnecessarily complexity from sqlite3WithReleaseByParse(). Improved TreeView output for the enhanced CTE structures. This code still does not work 100%. I'm saving my place in order to (maybe) come back to it later. (check-in: 30bb18b4 user: drh tags: as-materialize) | |
| 16:32 | Trying to get the new AS MATERIALIZE syntax of CTEs to work. There are still performance and memory management issues. This is a WIP check-in. (check-in: bf0fd9b2 user: drh tags: as-materialize) | |
| 00:48 | Change the syntax from "GENERATED AS" to "AS MATERIALIZED" so as to match the syntax of PostgreSQL 12+. (Closed-Leaf check-in: 78dcddd9 user: drh tags: with-generated-as) | |
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2021-02-15
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| 17:51 | Merge the LIKE operator fix from trunk. (check-in: 8c861878 user: drh tags: with-generated-as) | |
| 17:02 | Fix an issue with the LIKE operator when it includes the "ESCAPE '_'" clause. Ticket [c0aeea67d58ae0fd]. (check-in: 27d41179 user: drh tags: trunk) | |
| 14:55 | Merge minor fixes from trunk. (check-in: d876b287 user: drh tags: with-generated-as) | |
| 14:32 | Add tests for sqlite3_column_count(). (check-in: 7cc65ae5 user: dan tags: trunk) | |
| 13:17 | Ensure that the ALTER TABLE statements return 0 for sqlite3_column_count(). (check-in: 29c1932a user: drh tags: trunk) | |
| 11:14 | Fix an error in the test case fix in [ecd71203]. (check-in: 5411bfa4 user: dan tags: trunk) | |
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2021-02-13
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| 23:46 | If the GENERATED keyword occurs before the AS keyword in a common table expression (CTE) definition, then that CTE becomes an "optimization barrier". For now, that means the CTE is always materialized. It also means that query flattener or pushdown optimizations that cross the CTE boundary are omitted. (check-in: 186ec18b user: drh tags: with-generated-as) | |
| 21:01 | Add a test-control that allows setting a LIKE pattern for common table expression names such that CTEs with matching names become an optimization barrier - They are not flattened and are implemented by materialization. (Closed-Leaf check-in: 15692ec0 user: drh tags: optbarrier-test-ctrl) | |
| 18:14 | Fix incorrect test name labels in the select1.test script. (check-in: 179c79ea user: drh tags: trunk) | |
| 16:39 | Avoid manifesting a CTE (or other view) multiple times when it is possible to reuse the first manifestation. (check-in: 9692f510 user: drh tags: trunk) | |
| 14:26 | Fix a problem in the unreleased union-all flattening enhancement (check-in: e4f8a79f user: dan tags: trunk) | |
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2021-02-12
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| 21:22 | Fix a test case to account for the fact that different versions of OpenBSD behave differently when a program tries to read() from a file-descriptor open on a directory. (check-in: ecd71203 user: dan tags: trunk) | |
| 21:07 | Parsing of DML statements in a WITH clause. But at this point, it just generates an error about "not yet supported". (Leaf check-in: 964ff68d user: drh tags: dml-in-cte) | |
| 11:37 | Ensure all RBU tests are run as part of release testing. (check-in: a18dc08b user: dan tags: trunk) | |
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2021-02-11
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| 16:19 | In RBU, avoid passing VFS xShmLock calls through to the underlying VFS in cases where xShmMap calls may not be. This fixes a bad interaction with ZipVFS. (Leaf check-in: 0c3838d9 user: dan tags: reuse-schema-3.31) | |
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2021-02-10
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| 20:20 | Merge latest trunk changes into this branch. (check-in: d29c41bd user: dan tags: reuse-schema) | |
| 20:00 | Fix a longstanding problem causing an RBU vacuum to omit releasing some locks before finishing. (check-in: 66c07a07 user: dan tags: trunk) | |
| 19:49 | Remove an assert() added by the previous commit that is sometimes false. (Closed-Leaf check-in: fb36ac4d user: dan tags: shm-lock-fix) | |
| 19:40 | Fix a longstanding problem causing an RBU vacuum to omit releasing some locks before finishing. (check-in: cb5bdf82 user: dan tags: shm-lock-fix) | |
| 17:31 | In RBU, avoid passing VFS xShmLock calls through to the underlying VFS in cases where xShmMap calls may not be. This fixes a bad interaction with ZipVFS. (check-in: bd1e9e0a user: dan tags: trunk) | |
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2021-02-08
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| 15:56 | Correctly detect correlated subqueries when resolving names in RETURNING clauses. (check-in: b43cfa04 user: drh tags: trunk) | |
| 13:41 | Improved name resolution for references to a table begin modified from within a subquery in the RETURNING clause. (check-in: 799d205b user: drh tags: trunk) | |
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2021-02-07
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| 23:28 | Do not allow RETURNING in the DML statements of a trigger. (check-in: 7a8fe646 user: drh tags: trunk) | |
| 12:59 | Fix harmless compiler warnings. (check-in: 5f8bf995 user: drh tags: trunk) | |
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2021-02-06
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| 14:56 | Remove an ALWAYS() and NEVER() in the authorizer that become reachable as of [078dbff04a95a001]. Test case for coverage in TH3. (check-in: b469327e user: drh tags: trunk) | |
| 14:37 | Fix the OSSFuzz-discovered shift problem from two days ago. This patch was omitted from [078dbff04a95a001] apparently because I made the edit to "sqlite3.c" rather than "resolve.c" where it belongs. (check-in: 864772ff user: drh tags: trunk) | |
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2021-02-05
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| 17:34 | Remove unreachable code. Fix a shift UB problem introduced yesterday and discovered by OSSFuzz. (check-in: 078dbff0 user: drh tags: trunk) | |
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2021-02-04
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| 23:20 | Change the RETURNING algorithm so that outputs accumulate in an ephemeral table until all modifications have been completed, and only then do results start being returned. This should help prevent problems with interleaved sqlite3_step() calls on two separate DML statements. It also seems to be closer to how PostgreSQL works, which might prevent compatibility problems. (check-in: c4615eb2 user: drh tags: trunk) | |
| 22:59 | Remove dead code. Fix RETURNING for INSERT into a virtual table. (Closed-Leaf check-in: dbfa3869 user: drh tags: returning-manifested) | |
| 21:19 | Initial commit (Leaf check-in: e73dbce8 user: shearer tags: selective-debug) | |
| 21:17 | Fix an issue with RETURNING from UPSERT. (check-in: 757b74ba user: drh tags: returning-manifested) | |
| 20:52 | Snapshot. New design appears to work on a simple test case. (check-in: 8a65fbee user: drh tags: returning-manifested) | |
| 17:29 | Preliminary changes for a new implementation of RETURNING that captures all results in a buffer and plays them all back after the DML statement completes. This avoids problems with interleaved DML statements. This particular check-in is a non-functional work in progress. (check-in: 04b77d63 user: drh tags: returning-manifested) | |
| 13:52 | Add NEVER() to a branch that check-in [5d54d9fd40638138] apparently made unreachable. (check-in: 5c8e6296 user: drh tags: trunk) | |
| 13:44 | Performance optimization in sqlite3FinishCoding(). (check-in: 0f34f241 user: drh tags: trunk) | |
| 11:14 | Work toward handling interleaved RETURNING statements. Trunk does not handle that case correctly. This branch is a partial implementation of ideas that might, however. (Closed-Leaf check-in: e1eb6213 user: drh tags: interleaved-returning) | |
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2021-02-03
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| 19:38 | Corrections to the 'filepath_normalize' test suite helper procedure. (check-in: 32f4d044 user: mistachkin tags: trunk) | |
| 18:32 | Change the name of Vdbe.magic to Vdbe.iVdbeMagic to disambiguate with sqlite3.magic. (check-in: 6b29e549 user: drh tags: trunk) | |
| 14:20 | Avoid doing any foreign-key constraint related processing for an UPDATE statement that does not modify any columns that are part of FK constraints, even if the table has a self-referencing FK. (check-in: 7f3b036e user: dan tags: trunk) | |
| 13:20 | Fix a harmless compiler warning. (check-in: 1eb69c64 user: drh tags: trunk) | |
| 13:08 | Add support for the RETURNING clause following PostgreSQL syntax. Also change the behavior of SQLITE_DBCONFIG_ENABLE_TRIGGER so that TEMP triggers are always allowed, regardless of the setting. (check-in: 416c898b user: drh tags: trunk) | |
| 12:35 | Fix an assert() that might be off-by-one in the case of a prior errors in the parse. (check-in: 06b15b17 user: drh tags: trunk) | |
| 00:55 | Modify the SQLITE_DBCONFIG_ENABLE_TRIGGER setting so that it only disables main-schema triggers and allows TEMP trigger to continue operating. This is safe, since only the application (not an attacker) can add TEMP triggers. It will also all us to disengage SQLITE_DBCONFIG_ENABLE_TRIGGER on Fossil databases since Fossil has no main-schema triggers but does use TEMP triggers. (Closed-Leaf check-in: a10c5a25 user: drh tags: returning) | |
| 00:05 | Load enhancements from trunk into the returning branch. (check-in: b84c7f60 user: drh tags: returning) | |
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2021-02-02
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| 20:46 | Do not allow aggregates in a RETURNING clause. Fix a memory leak that occurs when window functions are used in a RETURNING clause. (check-in: 2e9bd94b user: drh tags: returning) | |