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50 check-ins occurring around 2015-06-02.
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2015-06-08
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| 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) | |