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100 check-ins occurring around 2015-06-02.
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2015-06-12
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| 13:49 | Add a fast-path implementation of pcache1Fetch() for the common case of separate caches that do not use a mutex. (check-in: 760700edb3 user: drh tags: faster-pcache1-fetch) | |
| 13:04 | Minor performance optimization in pcache1.c. (check-in: 2e8ad2ead9 user: drh tags: trunk) | |
| 12:54 | Add the OP_ColumnsUsed opcode (when compiled with SQLITE_ENABLE_COLUMN_USED_MASK) as a hint to the b-tree layer as to which columns of a btree cursor will be used. (check-in: 711a176cbf user: drh tags: trunk) | |
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2015-06-11
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| 18:01 | Merge recent trunk enhancements and fixes. (check-in: c39cb0e257 user: drh tags: sessions) | |
| 17:58 | Merge trunk fixes. (Leaf check-in: 1df8cbbea6 user: drh tags: view-optimization) | |
| 17:26 | Add the sqlite3changegroup_xxx() APIs to the sessions module. For combining multiple changesets or patchsets. (check-in: 0c1a901cd6 user: dan tags: sessions) | |
| 14:19 | Remove stray outputs from the test suite. (check-in: afc6db9b10 user: drh tags: trunk) | |
| 13:58 | When generating code for partial indexes, be sure not to modify the index condition expression in the schema. (check-in: e63d01c69c user: drh tags: trunk) | |
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2015-06-10
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| 23:02 | More test output refinements. (Closed-Leaf check-in: e64a568179 user: mistachkin tags: testerOutput) | |
| 22:51 | Remove possibly stray output from various tests. (check-in: f38e0be56f user: mistachkin tags: testerOutput) | |
| 22:03 | Fix minor typo in the quicktest MSVC makefile target. (check-in: 75b65f9d49 user: mistachkin tags: trunk) | |
| 20:00 | Merge enhancements from trunk. (check-in: 0e23a079bd user: drh tags: view-optimization) | |
| 18:53 | "test" targets on all makefiles use --verbose=file --output=test-out.txt. Add the new "quicktest" target to all makefiles - designed to run in under three minutes. The --quick option on releasetest.tcl now uses quicktest. (check-in: 6ddef2ad35 user: drh tags: trunk) | |
| 17:20 | Resolve FROM-clause subqueries after query planning instead of before. Greatly reduce the estimated cost of automatic indexes for VIEWs and ephemeral tables since performance problems there cannot be mitigated via a CREATE INDEX. (check-in: a1eaf1718e user: drh tags: view-optimization) | |
| 14:27 | Avoid passing constraints that are unusable due to LEFT or CROSS joins to virtual table xBestIndex() methods. (check-in: 7b446771ca user: dan tags: trunk) | |
| 10:45 | Fix the fts5 xRename() method. (check-in: 0f7fd51325 user: dan tags: fts5) | |
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2015-06-09
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| 20:58 | Add the "columnsize=" option to fts5, similar to fts4's "matchinfo=fts3". (check-in: aa12f9d9b7 user: dan tags: fts5) | |
| 15:58 | Add the --output=$file and --verbose=(0|1|file) options to tester.tcl. (check-in: f7b2c70362 user: dan tags: trunk) | |
| 10:58 | Remove some repeated lines of source code. Probably introduced by careless cut'n'pasting. (Closed-Leaf check-in: a34cd71c8a user: dan tags: vtab-left-join) | |
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2015-06-08
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| 22:59 | Code refactoring to try to shift FROM-clause subquery manifesting until after the query planner runs. Except this does not currently work because the query planner needs an estimated of the number of rows in the manifested table. Work in progress. (check-in: cabf218716 user: drh tags: view-optimization) | |
| 19:15 | Add the valgrindfuzz target to unix makefile. (check-in: e62aed01f1 user: drh tags: trunk) | |
| 18:48 | If a query contains "FROM t1 LEFT JOIN t2, t3, t4", ensure that tables t3 and t4 are not scanned before t2. The trunk already does this. (check-in: 0d9edfab9f user: dan tags: vtab-left-join) | |
| 18:05 | Avoid passing constraints that are unusable due to LEFT or CROSS joins to virtual table xBestIndex() methods. (check-in: 80ee56dda7 user: dan tags: vtab-left-join) | |
| 17:42 | Fix typo in comment. No changes to code. (check-in: e49c291735 user: mistachkin tags: trunk) | |
| 17:40 | Split out some source code into new files: wherecode.c, whereexpr.c, and treeview.c. Other minor refactoring changes. (check-in: 50f336818c user: drh tags: trunk) | |
| 15:08 | Factor out the TreeView parse tree printing module into a separate file. (check-in: c32ce54ca4 user: drh tags: view-optimization) | |
| 14:23 | Split more subfunctions of where.c out into a new whereexpr.c source file, for improved maintainability. (check-in: 46ef95c108 user: drh tags: view-optimization) | |
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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) | |
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2015-06-05
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| 22:33 | Split FROM-clause subquery flattening and code generation into separate loops. (check-in: be8e3fc70e user: drh tags: view-optimization) | |
| 20:27 | Provide one final Select tree dump prior to WHERE clause analysis when ".selecttrace 0x400" tracing bit is set with SELECTTRACE_ENABLED. Analysis and debug changes only - normal builds are unaffected. (check-in: 283bf0b64d user: drh tags: trunk) | |
| 19:05 | Make use of range constraints on the rowid field of an fts5 table in full-text queries. (check-in: 32cbc0ed36 user: dan tags: fts5) | |
| 15:59 | Add a new opcode to the VDBE that gives the b-tree a hint about the set of columns in a table or index that are actually used by the query. (Closed-Leaf check-in: f167bba446 user: drh tags: column-usage-hint) | |
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2015-06-04
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| 12:08 | Change the name of SrcList.a[].zIndex to the more descriptive SrcList.a[0].zIndexedBy. (check-in: 6a9cf06337 user: drh tags: trunk) | |
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2015-06-03
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| 11:23 | Fix an fts5 problem in extracting columns from position lists containing large varints. (check-in: 4ea015ab98 user: dan tags: fts5) | |
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2015-06-02
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| 19:38 | Change the fts5 multi-column syntax to use parenthesis instead of square brackets. (check-in: ab85a6fc4f user: dan tags: fts5) | |
| 19:36 | Always check for cell overflow before returning a slot from the pageFindSlot routine in btree.c. (check-in: 9f035c45a4 user: drh tags: trunk) | |
| 18:09 | For FROM-clause subqueries that cannot be flattened, try to push relevant WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. Call this the "WHERE-clause push-down optimization". Do not confuse this with the completely different MySQL push-down optimization. (check-in: 6df18e949d user: drh tags: trunk) | |
| 18:07 | Merge latest trunk changes with this branch. (check-in: c9ffda4abb user: dan tags: fts5) | |
| 17:57 | Reimplement [ec69e09a] so that each call to the xNext() method does not involve two iterations of the match expression tree (only one). (check-in: 80fe305b3e user: dan tags: fts5) | |
| 17:25 | Add test cases for type affinity rules. (check-in: 9678646d9a user: drh tags: trunk) | |
| 16:19 | Rename SQLITE_AFF_NONE to SQLITE_AFF_BLOB to avoid confusion with "no affinity". (check-in: 29ad9e9173 user: drh tags: trunk) | |
| 16:09 | Add the built-in affinity() SQL function. This turns out to be not as useful as originally envisioned, so abandon it on a branch. (Leaf check-in: 80889306bf user: drh tags: affinity-func) | |
| 15:32 | Rename SQLITE_AFF_NONE to SQLITE_AFF_BLOB. (Closed-Leaf check-in: bce3f04186 user: drh tags: blob-affinity-rename) | |
| 14:02 | Fix a faulty assert() in btree.c. Update the database fuzz test file with new test cases. (check-in: 4e621af134 user: drh tags: trunk) | |
| 09:20 | Add the "finish_test" command to the end of new test script sessionE.test. (check-in: fb39140707 user: dan tags: sessions) | |
| 09:19 | Modify the sessions module to ignore all operations on tables with no primary keys as documented. (check-in: bdaf9575cd user: dan tags: sessions) | |
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2015-06-01
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| 20:28 | For FROM-clause subqueries that cannot be flattened, try to push WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. (Closed-Leaf check-in: 297fae7551 user: drh tags: subquery-opt) | |
| 19:17 | Improve performance of the fts5 AND operator. (check-in: b43e9a5b7a user: dan tags: fts5) | |
| 18:13 | Corrections to comments in expr.c. No code changes. (check-in: f925389eaf user: drh tags: trunk) | |
| 17:32 | Break out the query flattener into a separate source-code file. (Closed-Leaf check-in: e3fa8b936b user: drh tags: flattener-in-new-file) | |
| 11:10 | Typo fixes and additional background information in README.md. (check-in: 9b8e5823bc user: drh tags: trunk) | |
| 09:15 | Change fts5 expression processing to avoid linear scans of long doclists caused by phrases that match specific columns only. (check-in: ec69e09a55 user: dan tags: fts5) | |
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2015-05-30
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| 22:57 | Updates to configure.ac to help it find where the TCL libraries hidden on Ubuntu 14.04. (check-in: c864ff912d user: drh tags: trunk) | |
| 22:05 | Fix minor typo in comment. No changes to code. (check-in: 73fc058b3a user: mistachkin tags: trunk) | |
| 11:49 | Remove the "#include sqlite3Int.h" from fts5Int.h. (check-in: e008c3c8e2 user: dan tags: fts5) | |
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2015-05-29
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| 19:04 | Import recent enhancements from trunk. (check-in: 54bec164eb user: drh tags: sessions) | |
| 19:00 | Add extra tests and fixes for multi-column matches. (check-in: ae6794ffa2 user: dan tags: fts5) | |
| 18:42 | Ensure that allocateBtreePage() always clears the MemPage pointer when it fails due to an I/O or memory allocation error. (check-in: 09a38bf665 user: drh tags: trunk) | |
| 17:51 | Move two unreachable conditionals inside of NEVER() or assert(). (check-in: db4e9728fa user: drh tags: trunk) | |
| 17:13 | Remove a corruption test in balance_nonroot that is superceded by a prior better check. (check-in: 00693682d8 user: drh tags: trunk) | |
| 15:55 | Add syntax to fts5 used to specify that a phrase or NEAR group should match a subset of columns. For example "[col1 col2 ...] : <phrase>". (check-in: 0fc0ea2092 user: dan tags: fts5) | |
| 15:15 | Omit the rowallock.test script (Read-Only WAL lock) from the inmemory_journal permutation. (check-in: d21db33089 user: drh tags: trunk) | |
| 14:47 | Add support for automatic indexes on FROM-clause subqueries that are implemented via co-routine. (check-in: 020b8b106f user: drh tags: trunk) | |
| 14:36 | Add some extra source-code comments and a test case. (Closed-Leaf check-in: 6d410442fb user: drh tags: coroutine-autoindex) | |
| 13:55 | An attempt to allow automatic index creation on subqueries accessed via co-routine. (check-in: 521345add6 user: drh tags: coroutine-autoindex) | |
| 01:35 | Using "SELECT ALL" instead of just "SELECT" on a query that uses a single unflattenable subquery or view in its FROM clause will force the subquery to be manifested into a temporary table rather than run incrementally using a co-routine. This is a stop-gap means of controlling the decision to manifest while we try to work out a better to make that decision automatically. (check-in: a29e117d7e user: drh tags: trunk) | |
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2015-05-28
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| 19:57 | Optimizations for fts5 queries that match against a specific column. (check-in: b29ac50af0 user: dan tags: fts5) | |
| 15:14 | Added comments and testcase() macros to error cases in the btree search. (check-in: 7da7dc714b user: drh tags: trunk) | |
| 14:37 | Remove some dead code from fts5. Add auxiliary function api tests to the same. (check-in: 0f9df202cc user: dan tags: fts5) | |
| 11:23 | Earlier detection of incompatible sibling pages in balance_nonroot. (check-in: 60a09f17d8 user: drh tags: trunk) | |
| 03:45 | Add new test cases to the fuzzdata3.db set of database fuzz tests. (check-in: 467b13a401 user: drh tags: trunk) | |
| 03:28 | Add the btreeGetUnusedPage() routine to btree.c, and use it to detect content pages on the freelist and to cause that condition to trigger an SQLITE_CORRUPT. (check-in: fe15d1f703 user: drh tags: trunk) | |
| 00:54 | Do not attempt to take any write lock on a read-only database on Windows. (check-in: a47ff0cdab user: drh tags: trunk) | |
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2015-05-27
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| 19:35 | The fuzzoomtest makefile target is no longer supported, so update releasetest.tcl accordingly. (check-in: 06959d4ada user: drh tags: trunk) | |
| 18:19 | Fix a minor and harmless memory leak in fuzzcheck. Adjust the makefiles to run fuzzcheck with --quiet on valgrind tests. (check-in: 8bfe834432 user: drh tags: trunk) | |
| 18:13 | All bytes of a page are initialized, even bytes that follow a 2-byte cell on a malformed page. (check-in: 7373a004ed user: drh tags: trunk) | |
| 15:42 | A different approach to preventing buffer overreads when comparing a vector of values with a corrupt index record that spans at least one overflow page. (check-in: 95eaa49f4e user: drh tags: trunk) | |
| 15:10 | Disallow the use of "rowid" in CTEs - it has never worked correctly and it makes no sense, so we might as well make it an explicit error. Also: add the PRAGMA cell_size_check=ON command. (check-in: 19e2cebc12 user: drh tags: trunk) | |
| 14:21 | A different approach to preventing buffer overreads when comparing a vector of values with a corrupt index record that spans at least one overflow page. (Closed-Leaf check-in: 7e9e1b6123 user: dan tags: avoid-buffer-overread) | |
| 13:06 | CTEs have never had working rowids. So disallow the use of the "rowid" column within CTEs. (Closed-Leaf check-in: 0055df0445 user: drh tags: no-rowid-in-cte) | |
| 03:46 | Add the "PRAGMA cell_size_check=ON" command. (Closed-Leaf check-in: 2ead43f074 user: drh tags: cell-size-check-pragma) | |
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2015-05-26
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| 20:31 | Avoid a buffer overread when comparing against a corrupt record that spans at least one overflow page. (check-in: 62a5b3633a user: dan tags: trunk) | |
| 20:07 | Avoid branching on an uninitalized variable when comparing SQL values with the undefined serial types 10 and 11 (which only appear in corrupt databases). (check-in: b4a45d3b78 user: dan tags: trunk) | |
| 19:08 | The "make fuzztest" target now uses fuzzcheck instead of fuzzershell. Test data is added for database fuzz testing. (check-in: 5e3e410bf4 user: drh tags: trunk) | |
| 19:01 | Merge accidental fork. (Closed-Leaf check-in: e85628e34a user: dan tags: test-using-fuzzcheck) | |
| 18:58 | Fix a one-byte buffer overread that may follow a syntax error while preparing an SQL statement. (check-in: 075003930d user: dan tags: test-using-fuzzcheck) | |
| 18:58 | Fix fuzzcheck so that it responds correctly to the TEST_FAILURE environment variable. (check-in: 76770c9e06 user: drh tags: test-using-fuzzcheck) | |
| 18:22 | Simplifications and minor optimizations to fts5 prefix queries that cannot use a prefix index. (check-in: aef89d9f6a user: dan tags: fts5) | |
| 18:15 | The "make fuzztest" target now uses fuzzcheck instead of fuzzershell. (check-in: 4a5f6f1f01 user: drh tags: test-using-fuzzcheck) | |
| 17:57 | Enhance fuzzcheck with the ability to store descriptions in each source database and to run multiple source databases in a single invocation. (check-in: 193364c81c user: drh tags: trunk) | |
| 17:33 | Add a cast to one side of the test added by [97806a78] in order to avoid a signed/unsigned comparison warning. (check-in: 5b46d2a78a user: dan tags: trunk) | |
| 17:29 | Avoid using a zero-sized array within a struct in fts3 code. (check-in: b05cae36ce user: dan tags: trunk) | |
| 16:12 | Fix another bug in the in-memory VFS for fuzzcheck. (check-in: 16878a314b user: drh tags: trunk) | |
| 14:57 | Update test cases in corruptI.test so that they work with both SQLITE_ENABLE_OVERSIZE_CELL_CHECK and SQLITE_DEFAULT_AUTOVACUUM builds. (check-in: 22a1466378 user: dan tags: trunk) | |
| 12:18 | Return SQLITE_CORRUPT to the user if an attempt is made to add database page 1 to the free page list. (check-in: 68876003f9 user: dan tags: trunk) | |
| 11:53 | Fix a problem with ignoring UNIQUE constraints on WITHOUT ROWID tables rendered redundant by the PRIMARY KEY. (check-in: 3b936913f3 user: dan tags: trunk) | |