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100 check-ins occurring around 19e2cebc12aaa4e7.
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2015-06-06
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| 00:18 | Minor cleanup of the sqlite3Select() procedure. (check-in: f4c90d06 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: be8e3fc7 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: 283bf0b6 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: 32cbc0ed 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: f167bba4 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: 6a9cf063 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: 4ea015ab 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: ab85a6fc user: dan tags: fts5) | |
| 19:36 | Always check for cell overflow before returning a slot from the pageFindSlot routine in btree.c. (check-in: 9f035c45 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. (check-in: 6df18e94 user: drh tags: trunk) | |
| 18:07 | Merge latest trunk changes with this branch. (check-in: c9ffda4a 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: 80fe305b user: dan tags: fts5) | |
| 17:25 | Add test cases for type affinity rules. (check-in: 9678646d user: drh tags: trunk) | |
| 16:19 | Rename SQLITE_AFF_NONE to SQLITE_AFF_BLOB to avoid confusion with "no affinity". (check-in: 29ad9e91 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: 80889306 user: drh tags: affinity-func) | |
| 15:32 | Rename SQLITE_AFF_NONE to SQLITE_AFF_BLOB. (Closed-Leaf check-in: bce3f041 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: 4e621af1 user: drh tags: trunk) | |
| 09:20 | Add the "finish_test" command to the end of new test script sessionE.test. (check-in: fb391407 user: dan tags: sessions) | |
| 09:19 | Modify the sessions module to ignore all operations on tables with no primary keys as documented. (check-in: bdaf9575 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: 297fae75 user: drh tags: subquery-opt) | |
| 19:17 | Improve performance of the fts5 AND operator. (check-in: b43e9a5b user: dan tags: fts5) | |
| 18:13 | Corrections to comments in expr.c. No code changes. (check-in: f925389e user: drh tags: trunk) | |
| 17:32 | Break out the query flattener into a separate source-code file. (Closed-Leaf check-in: e3fa8b93 user: drh tags: flattener-in-new-file) | |
| 11:10 | Typo fixes and additional background information in README.md. (check-in: 9b8e5823 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: ec69e09a 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: c864ff91 user: drh tags: trunk) | |
| 22:05 | Fix minor typo in comment. No changes to code. (check-in: 73fc058b user: mistachkin tags: trunk) | |
| 11:49 | Remove the "#include sqlite3Int.h" from fts5Int.h. (check-in: e008c3c8 user: dan tags: fts5) | |
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2015-05-29
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| 19:04 | Import recent enhancements from trunk. (check-in: 54bec164 user: drh tags: sessions) | |
| 19:00 | Add extra tests and fixes for multi-column matches. (check-in: ae6794ff 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: 09a38bf6 user: drh tags: trunk) | |
| 17:51 | Move two unreachable conditionals inside of NEVER() or assert(). (check-in: db4e9728 user: drh tags: trunk) | |
| 17:13 | Remove a corruption test in balance_nonroot that is superceded by a prior better check. (check-in: 00693682 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: 0fc0ea20 user: dan tags: fts5) | |
| 15:15 | Omit the rowallock.test script (Read-Only WAL lock) from the inmemory_journal permutation. (check-in: d21db330 user: drh tags: trunk) | |
| 14:47 | Add support for automatic indexes on FROM-clause subqueries that are implemented via co-routine. (check-in: 020b8b10 user: drh tags: trunk) | |
| 14:36 | Add some extra source-code comments and a test case. (Closed-Leaf check-in: 6d410442 user: drh tags: coroutine-autoindex) | |
| 13:55 | An attempt to allow automatic index creation on subqueries accessed via co-routine. (check-in: 521345ad 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: a29e117d 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: b29ac50a user: dan tags: fts5) | |
| 15:14 | Added comments and testcase() macros to error cases in the btree search. (check-in: 7da7dc71 user: drh tags: trunk) | |
| 14:37 | Remove some dead code from fts5. Add auxiliary function api tests to the same. (check-in: 0f9df202 user: dan tags: fts5) | |
| 11:23 | Earlier detection of incompatible sibling pages in balance_nonroot. (check-in: 60a09f17 user: drh tags: trunk) | |
| 03:45 | Add new test cases to the fuzzdata3.db set of database fuzz tests. (check-in: 467b13a4 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: fe15d1f7 user: drh tags: trunk) | |
| 00:54 | Do not attempt to take any write lock on a read-only database on Windows. (check-in: a47ff0cd 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: 06959d4a 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: 8bfe8344 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: 7373a004 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: 95eaa49f 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: 19e2cebc 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: 7e9e1b61 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: 0055df04 user: drh tags: no-rowid-in-cte) | |
| 03:46 | Add the "PRAGMA cell_size_check=ON" command. (Closed-Leaf check-in: 2ead43f0 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: 62a5b363 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: b4a45d3b 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: 5e3e410b user: drh tags: trunk) | |
| 19:01 | Merge accidental fork. (Closed-Leaf check-in: e85628e3 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: 07500393 user: dan tags: test-using-fuzzcheck) | |
| 18:58 | Fix fuzzcheck so that it responds correctly to the TEST_FAILURE environment variable. (check-in: 76770c9e user: drh tags: test-using-fuzzcheck) | |
| 18:22 | Simplifications and minor optimizations to fts5 prefix queries that cannot use a prefix index. (check-in: aef89d9f user: dan tags: fts5) | |
| 18:15 | The "make fuzztest" target now uses fuzzcheck instead of fuzzershell. (check-in: 4a5f6f1f 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: 193364c8 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: 5b46d2a7 user: dan tags: trunk) | |
| 17:29 | Avoid using a zero-sized array within a struct in fts3 code. (check-in: b05cae36 user: dan tags: trunk) | |
| 16:12 | Fix another bug in the in-memory VFS for fuzzcheck. (check-in: 16878a31 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: 22a14663 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: 68876003 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: 3b936913 user: dan tags: trunk) | |
| 03:31 | Silence harmless compiler warnings when building the command line utilities with MSVC. (check-in: d26060c4 user: mistachkin tags: trunk) | |
| 03:24 | Add fuzzcheck to makefile clean targets. Also, for consistency, replace a few tabs with spaces. (check-in: eda2a437 user: mistachkin tags: trunk) | |
| 00:28 | Add the --result-trace option to fuzzcheck, and other interface enhancements. (check-in: c415bb7b user: drh tags: trunk) | |
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2015-05-25
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| 23:14 | Fix an important bug in the xRead method of the in-memory VFS for fuzzcheck. (check-in: 58cd40e8 user: drh tags: trunk) | |
| 22:38 | Add the fuzzcheck test program. (check-in: 341cb6ab user: drh tags: trunk) | |
| 22:29 | Add fuzzcheck to all makefiles and fix compiler warnings. (Closed-Leaf check-in: 7b3d2190 user: drh tags: fuzzcheck) | |
| 22:18 | Merge in trunk fixes. (check-in: c71c2e1a user: drh tags: fuzzcheck) | |
| 22:17 | Improved tracing capabilities in fuzzcheck. (check-in: 864bfdbf user: drh tags: fuzzcheck) | |
| 21:59 | Add the --native-vfs option on fuzzcheck. (check-in: 12e95e3f user: drh tags: fuzzcheck) | |
| 20:04 | Fix a case of a corrupt database causing SQLite to read from up to 4 bytes before the start of a memory allocation. (check-in: 7d2c4f7b user: dan tags: trunk) | |
| 19:37 | Merge the btree fixes out of trunk. (check-in: f3cd8cec user: drh tags: fuzzcheck) | |
| 19:35 | Add the --dbid and --sqlid parameters to fuzzcheck. Other fuzzcheck fixes. (check-in: 75ec9299 user: drh tags: fuzzcheck) | |
| 19:24 | Have the b-tree layer return SQLITE_CORRUPT to any attempt to open a cursor with a root page number less than 1. (check-in: aa18c8e9 user: dan tags: trunk) | |
| 18:48 | First code for a new utility program to rerun checks on a large number of fuzzer-generated test cases. (check-in: c5b4e363 user: drh tags: fuzzcheck) | |
| 18:47 | Fix a couple of btree asserts that would fail when encountering 32-bit rollover in cell payload size fields (cell payloads this large always indicate corruption). (check-in: 8fa0937a user: dan tags: trunk) | |
| 17:07 | Fix a case where database corruption may cause SQLite to write past the end of a buffer. (check-in: 97806a78 user: dan tags: trunk) | |
| 15:03 | Fix an assert() in btree routine freeSpace() that may be false if the database is corrupt. (check-in: 00a473c5 user: dan tags: trunk) | |
| 11:46 | Avoid redundant loads from the %_data table in the fts5 code. (check-in: 02069782 user: dan tags: fts5) | |
| 10:57 | Fix an fts4 matchinf() problem triggered by deferred tokens that are part of phrases that are part of AND expressions. (check-in: f1e942a1 user: dan tags: trunk) | |
| 10:29 | Fix an obsolete comment - no changes to code. (check-in: 4e4228c4 user: drh tags: trunk) | |
| 09:33 | Remove an incorrect and pointless assert(). (check-in: 8c3929bd user: drh tags: trunk) | |
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2015-05-24
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| 21:46 | The assert() changes removed in the previous check-in are needed after all. (check-in: 336fccc8 user: drh tags: trunk) | |
| 21:09 | Better detection of corruption in allocateSpace() in btree.c. (check-in: bf7bb53e user: drh tags: trunk) | |
| 10:18 | Detect database corruption in the modifyPagePointer() routine and abort. (check-in: 4f0bba42 user: drh tags: trunk) | |
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2015-05-23
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| 19:53 | Instead of early detection of corruption in balance_nonroot, simply ignore the error, as it is harmless and exceedingly uncommon. (check-in: 7bbf9b3c user: drh tags: trunk) | |
| 19:29 | Earlier detection of a specific kind of corruption in the balance_nonroot() routine. (check-in: ee6dc991 user: drh tags: trunk) | |
| 15:43 | Avoid making redundant copies of position-lists within the fts5 code. (check-in: 5165de54 user: dan tags: fts5) | |
| 02:44 | Minor documentation improvements. No changes to code. (check-in: e446d9ce user: drh tags: trunk) | |
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2015-05-22
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| 23:51 | Merge bug fixes from trunk. (check-in: 519054bb user: drh tags: sessions) | |
| 23:50 | Improved error messages in fuzzershell when unable to open the database. (check-in: c404fcac user: drh tags: trunk) | |
| 23:45 | Fix a bug in fuzzershell caused by an uninitialized local variable. (check-in: 745deab8 user: drh tags: trunk) | |