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100 check-ins occurring around 67602e40f122cbb6.
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2016-11-22
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| 01:26 | Remove unnecessary OP_Close opcodes for a size reduction and performance increase. check-in: 32be7aae user: drh tags: trunk | |
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2016-11-21
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| 21:33 | Remove unnecessary OP_Close opcodes at the end of INSERT operations, resulting in smaller and faster code. check-in: abeddb6d user: drh tags: trunk | |
| 18:15 | Enhance speedtest1.c so that is works on older versions of SQLite, before the introduction of the group_concat() aggregate function. check-in: 9979ba80 user: drh tags: trunk | |
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2016-11-20
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| 17:59 | Fix harmless compiler warnings. check-in: b3b7b42d user: drh tags: trunk | |
| 12:00 | Prevent a possible use-after-free bug in the query optimizer. check-in: 0a98c8d7 user: drh tags: trunk | |
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2016-11-19
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| 18:31 | Remove the requirement to open the wal file before sqlite3_snapshot_recover() is called. Also add some comments to new functions. check-in: 28393c41 user: dan tags: serializable-snapshot | |
| 17:30 | Test some extra error conditions in sqlite3_recover_snapshot(). check-in: db314213 user: dan tags: serializable-snapshot | |
| 17:20 | Add another fault-injection test for sqlite3_snapshot_recover(). check-in: 7e040406 user: dan tags: serializable-snapshot | |
| 16:35 | Fix a problem causing sqlite3_snapshot_recover() to return SQLITE_IOERR_SHORT_READ. check-in: 525f75fa user: dan tags: serializable-snapshot | |
| 14:53 | Fix a bug in sqlite3_snapshot_recover() that could cause subsequent read transactions to use out-of-data cache entries. check-in: 9abeb798 user: dan tags: serializable-snapshot | |
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2016-11-18
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| 20:49 | Add experimental sqlite3_snapshot_recover() API. check-in: 174a6076 user: dan tags: serializable-snapshot | |
| 18:43 | Require that the database handle be in autocommit mode for sqlite3_snapshot_get() to succeed. This is because it may open a read transaction on the database file. check-in: 83b658da user: dan tags: serializable-snapshot | |
| 18:22 | Add tests for snapshot interfaces. check-in: 1f7ee7af user: dan tags: serializable-snapshot | |
| 14:38 | Enhance existing snapshot tests to serialize/deserialize snapshots. No new tests. check-in: 16b9bf92 user: dan tags: serializable-snapshot | |
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2016-11-17
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| 21:52 | Experimental changes for faster in-memory DB operation for large databases. Closed-Leaf check-in: 4fe94b0f user: drh tags: memdb-opt | |
| 20:05 | Fix a problem in rtreeD.test causing it to fail in OMIT_BUILTIN_TEST builds. check-in: d6b3779e user: dan tags: trunk | |
| 14:02 | When opening the *-shm file for a readonly database, try to open it in read-write mode before falling back to readonly. This is in case some other read/write connection within the same process uses the same file descriptor. check-in: a07c581e user: dan tags: apple-osx | |
| 13:54 | Change the --enable-debug option on configure so that it enables the ".selecttrace" and ".wheretrace" commands in the command-line shell. check-in: 2331192b user: drh tags: trunk | |
| 13:13 | Disable the query flattener optimization for SELECT statements that are on the RHS of vector IN operators. This is a hack that fixes the bug described in ticket [da7841375186386c]. A better solution that does not disable the query flattener is needed, but this will server for the time being. check-in: 005d5b87 user: drh tags: trunk | |
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2016-11-15
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| 21:17 | Add a needed #include to speedtest1.c. check-in: 77aeb705 user: drh tags: trunk | |
| 17:37 | Experimental changes toward making snapshots serializable. check-in: b6a81fa1 user: drh tags: serializable-snapshot | |
| 04:00 | Change the OP_Last opcode so that it is a no-op if the cursor is already pointing at the end of the b-tree. check-in: 66347385 user: drh tags: trunk | |
| 02:46 | Make the VACUUM command about 9% faster by avoiding unnecessary calls to sqlite3BtreeMovetoUnpacked() while copying rowid tables. check-in: 5ed0bd38 user: drh tags: trunk | |
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2016-11-14
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| 20:47 | Add 8794 new test cases received from the OSS-FUZZ project. check-in: 03f75a67 user: drh tags: trunk | |
| 20:08 | Fix a potential use-after-free error during parsing of malformed CREATE TABLE statement. check-in: c5dbc599 user: drh tags: trunk | |
| 18:27 | Enhance fuzzcheck.c to accept database-specific configuration parameters in the option CONFIG table. Add the fuzzdata5.db fuzz database containing test cases from OSS-FUZZ. check-in: a71fad45 user: drh tags: trunk | |
| 17:25 | Fix the ossfuzz.c test module so that it does not segfault after a "PRAGMA empty_result_callbacks=1;". Add the ossshell.c program for simple command-line testing of ossfuzz.c. check-in: 6f2d43ec user: drh tags: trunk | |
| 15:28 | Avoid unnecessary calls to sqlite3ExprCacheAffinityChange() when generating OP_MakeRecord opcodes that do not change any register affinities. check-in: e211c579 user: drh tags: trunk | |
| 08:19 | Fix an fts5 problem causing a crash in phrase queries where the first token of the phrase matches one or more rows but some other token within the phrase matches zero. check-in: e78f6f3b user: dan tags: trunk | |
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2016-11-11
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| 20:37 | Fix harmless compiler warnings in test code for MSVC. check-in: 7b76be41 user: drh tags: trunk | |
| 19:08 | Avoid storing redundant fields in sorter records when the sort-key and data have fields in common. check-in: b835cf3e user: drh tags: trunk | |
| 19:01 | Enhance the OP_IdxInsert opcode so that it can used unpacked key values if they are available. Update the code generator to take advantage of this new capability. The speedtest1.c test is about 2.6% faster as a result. Later: This also introduced bug [30027b613b]. Bummer. check-in: 925840cf user: drh tags: trunk | |
| 18:45 | Merge trunk with this branch. Closed-Leaf check-in: dd62d2de user: dan tags: sorter-opt | |
| 18:19 | Remove obselete and unused logic in the update code generator. Fix the sqlite3BtreeMovetoUnpacked() routine so that it remembers the rowid of the row that it landed on. Closed-Leaf check-in: 1a587d72 user: drh tags: unpacked-IdxInsert | |
| 18:08 | Reenable the SQLITE_EXPR_REF optimization for "SELECT DISTINCT ... ORDER BY" queries. check-in: 6e2e9d38 user: dan tags: sorter-opt | |
| 17:52 | Merge enhancements and bug-fixes from trunk. check-in: 5515b827 user: drh tags: unpacked-IdxInsert | |
| 17:08 | Fix a problem with switching from wal to rollback mode when SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE is configured. check-in: 46e00162 user: dan tags: trunk | |
| 16:33 | Add the test/ossfuzz.c interface adaptor for OSS-FUZZ. Make previsions for testing the adaptor using fuzzcheck.c. check-in: 119d6ef8 user: drh tags: trunk | |
| 15:49 | Handle some obscure "row value misused" cases that could cause segfaults or assertion failures. check-in: fba5fddb user: dan tags: trunk | |
| 14:54 | Back out the "--raw" option on ".read" in the command-line shell. Instead, fix the command-line shell so that if EOF is reached without seeing a final semicolon, it goes ahead and passes the accumulated SQL text to SQLite. check-in: f98c8ac8 user: drh tags: trunk | |
| 09:51 | Add extra tests for the xBestIndex() virtual table method. check-in: 642a8fba user: dan tags: trunk | |
| 05:19 | In the command line shell, avoid using utf8_printf() in a couple places where it is superfluous. check-in: 6311a8bd user: mistachkin tags: trunk | |
| 04:37 | Add the --raw option to the ".read" dot-command of the command-line shell, to cause the named file to be read and sent directly into sqlite3_exec() without any interpretation. check-in: 09233770 user: drh tags: trunk | |
| 03:37 | Take care not to try to generate code for the ATTACH and DETACH commands if there were syntax errors during parsing. Fix for ticket [2f1b168ab4d4844] check-in: b0ff183b user: drh tags: trunk | |
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2016-11-10
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| 21:19 | Break up the sqlite3BtreeMovetoUnpacked() routine into an eponymous routine and sqlite3BtreeMovetoIntkey(). Each routine specializes in a single kind of btree. Leaf check-in: 9a64a4f2 user: drh tags: split-moveto | |
| 20:42 | Avoid a few unnecessary calls to sqlite3BtreeMovetoUnpacked(). check-in: eac0e827 user: drh tags: unpacked-IdxInsert | |
| 20:14 | Avoid storing redundant fields in sorter records when the sort-key and data have fields in common (as in "SELECT a FROM t1 ORDER BY 1"). check-in: 0af62fdb user: dan tags: sorter-opt | |
| 17:01 | When doing a REPLACE on a WITHOUT ROWID table with no secondary indexes, bypass the OP_NoConflict/OP_Delete sequence and directly overwrite any preexisting row, for a performance increase. check-in: f7041cbb user: drh tags: unpacked-IdxInsert | |
| 16:07 | Remove C++ style comments. No code changes. check-in: 42f8aa62 user: drh tags: unpacked-IdxInsert | |
| 14:24 | Add the unpacked key fields to OP_IdxInsert for INSERT and UPDATE statements. check-in: 67602e40 user: drh tags: unpacked-IdxInsert | |
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2016-11-09
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| 20:14 | Comment changes that attempt to better explain the behavior of the "seekResult" field on VdbeCursor objects and the seekResult parameter to sqlite3BtreeInsert() and the OPFLAG_USESEEKRESULT flag on insert opcodes. No changes to code. check-in: 345b46be user: drh tags: unpacked-IdxInsert | |
| 16:03 | Fix a simple comment typo. No changes to code. check-in: 51d0aed8 user: drh tags: unpacked-IdxInsert | |
| 01:46 | Fix typo in the CSV extension. check-in: b4889588 user: mistachkin tags: trunk | |
| 01:38 | Make use of the unpacked key on the OP_IdxInsert on sorters with a LIMIT. check-in: 42db7cd2 user: drh tags: unpacked-IdxInsert | |
| 01:19 | Fix a typo on the OP_IdxInsert documentation. No code changes. check-in: e4acd982 user: drh tags: unpacked-IdxInsert | |
| 01:07 | Add a DISTINCT query to speedtest1.c. Also change INSERT OR REPLACE into just REPLACE. check-in: 754ee844 user: drh tags: trunk | |
| 00:57 | Remove the "experimental" marking from the sqlite3_preupdate interfaces. But be sure all the interface definitions are within documentation. check-in: d6dd2ad3 user: drh tags: trunk | |
| 00:10 | Enhance the OP_IdxInsert opcode to optionally accept unpacked key material. check-in: 89d958ab user: drh tags: unpacked-IdxInsert | |
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2016-11-08
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| 19:22 | Avoid superfluous cursor seeks in "INSERT OR REPLACE" statements. check-in: bec5b6d4 user: dan tags: trunk | |
| 17:19 | Avoid generating OP_TableLock unnecessary instructions on btrees that are not sharable. check-in: 8cb8516d user: drh tags: trunk | |
| 16:27 | Fix the speedtest1.c test program so that it gives closing "%" wildcards on LIKE searches. check-in: c2f84f63 user: drh tags: trunk | |
| 00:30 | Tweaks to speedtest1.c to better reflect mobile usage based on findings in the "Pocket Data" paper by Kennedy, Ajay, Challen, and Ziarek. check-in: b5733cae user: drh tags: trunk | |
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2016-11-07
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| 18:18 | Fix OOM error reporting in the json1_group_object() SQL function. Remove an unreachable branch from the JSON1 logic. check-in: b5409849 user: drh tags: trunk | |
| 15:15 | Replace some unreachable branches from the JSON1 extension with assert(). check-in: 145cd13e user: drh tags: trunk | |
| 13:37 | Fix the JSON1 extension so that the JSON validator correctly rejects malformed backslash escapes within string literals. check-in: 7a635391 user: drh tags: trunk | |
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2016-11-04
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| 19:09 | Merge recent trunk changes, including all the fixes that appeared in version 3.15.1. check-in: 0e5ffd91 user: drh tags: apple-osx | |
| 12:08 | Version 3.15.1 check-in: 1136863c user: drh tags: release, version-3.15.1, branch-3.15 | |
| 12:05 | Avoid a crash that can occur after an obscure OOM in the built-in INSTR() function. check-in: b86b79c4 user: dan tags: trunk | |
| 12:03 | Mark the ICU extension functions as deterministic. check-in: afbbb6c6 user: drh tags: trunk | |
| 11:23 | Add an assert() to silence a coverity false-positive. check-in: 97354093 user: drh tags: trunk | |
| 07:25 | Fix a test case in vacuum5.test so that it works with the in-memory journal permutation. check-in: 81c86401 user: dan tags: trunk | |
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2016-11-03
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| 21:35 | Replace a couple more references to Tcl 8.5 in the Windows build tools. check-in: 1d0e43c5 user: mistachkin tags: trunk | |
| 19:27 | Fix a test case in vacuum5.test so that it works with -DSQLITE_TEMP_STORE=2 and -DSQLITE_ENABLE_ATOMIC_WRITE.. check-in: 752e14d9 user: dan tags: branch-3.15 | |
| 19:24 | Fix a test case in vacuum5.test sot aht it works with -DSQLITE_ENABLE_ATOMIC_WRITE. check-in: 3ca80010 user: dan tags: trunk | |
| 19:01 | Fix a test case in vacuum5.test so that it works with -DSQLITE_TEMP_STORE=2. check-in: f5dd95e2 user: dan tags: trunk | |
| 18:49 | Add the SQLITE_FCNTL_WIN32_GET_HANDLE file control. check-in: 5221e3cc user: drh tags: branch-3.15 | |
| 18:44 | Increase the version number to 3.15.1. check-in: ccdcce46 user: drh tags: branch-3.15 | |
| 18:38 | Escape non-ASCII character from an ICU extension comment. check-in: ee16fedd user: drh tags: branch-3.15 | |
| 18:36 | Fix an issue that was causing the new database image to be assembled entirely in heap memory when VACUUMing a database, even if it should use a temp file. This could cause SQLITE_NOMEM errors when vacuuming very large databases on 32-bit systems. check-in: 3fae483f user: drh tags: branch-3.15 | |
| 18:35 | Make sure left-join markings are transferred to the virtual scalar subexpressions when decomposing a vector comparison in the ON clause of a LEFT JOIN. Fix for ticket [fef4bb4bd9185ec8f]. check-in: aba1e22b user: drh tags: branch-3.15 | |
| 18:33 | If all branches of an OR optimize scan that is the rhs of a LEFT JOIN use the same index, set the index cursor to return NULL values if there are no matches for a row on the lhs. Fix for ticket [34a579141b2c5ac] check-in: 54eeddec user: drh tags: branch-3.15 | |
| 18:31 | In the sessions module, avoid recording a change if an UPDATE statement overwrites a column with REAL affinity containing an integer value with the same value. check-in: 0fc4f0f4 user: drh tags: branch-3.15 | |
| 18:30 | Avoid using the "direct overflow read" optimization to read large blobs if the pager layer has a wal file open - even if the database header indicates that the db is not a wal database. check-in: 63cfe197 user: drh tags: branch-3.15 | |
| 13:12 | In the command-line shell, fix the .imposter command so that it works with indexes on expressions. Fix the ".mode quote" mode so that it works with ".headers ON". check-in: ba9873da user: drh tags: trunk | |
| 13:01 | Add the ".imposter" command to the command-line shell. check-in: be3ec8fd user: drh tags: trunk | |
| 02:25 | Fix an possible NULL pointer deference in the command-line shell that can occur when using imposter mode. check-in: ad08753a user: drh tags: trunk | |
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2016-11-02
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| 19:49 | Adjust the MSVC makefile to use Tcl8.6 by default. check-in: def8f598 user: drh tags: trunk | |
| 16:29 | When the block sorting optimization is used in a scalar subquery, be sure to exit the loop as soon as the first valid output row is received. Fix for ticket [cb3aa0641d9a4] backported to the 3.8.9 branch. check-in: 8e4ba115 user: drh tags: branch-3.8.9 | |
| 14:50 | Fix an issue that was causing the new database image to be assembled entirely in heap memory when VACUUMing a database, even if it should use a temp file. This could cause SQLITE_NOMEM errors when vacuuming very large databases on 32-bit systems. check-in: 30288453 user: dan tags: trunk | |
| 13:18 | Fix a requirement mark. No changes to code. check-in: d18f61b7 user: drh tags: trunk | |
| 02:17 | Use NOT NULL partial indexes when the query is constrained by a single LIKE or GLOB. check-in: 9b3a3b41 user: drh tags: trunk | |
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2016-10-31
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| 16:49 | Add the SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE sqlite3_dbconfig() option - for disabling SQLite's default checkpoint-on-close behaviour. check-in: 6d142025 user: dan tags: trunk | |
| 16:16 | Add the SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE sqlite3_dbconfig() option - for disabling SQLite's default checkpoint-on-close behaviour. Closed-Leaf check-in: 093d2fc2 user: dan tags: no-ckpt-on-close | |
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2016-10-27
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| 14:51 | Remove the mutex from test_multiplex.c. check-in: 6374978e user: dan tags: trunk | |
| 01:02 | Make sure left-join markings are transferred to the virtual scalar subexpressions when decomposing a vector comparison in the ON clause of a LEFT JOIN. Fix for ticket [fef4bb4bd9185ec8f]. check-in: 619f5cc7 user: drh tags: trunk | |
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2016-10-26
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| 18:41 | Small size reduction and performance enhancement in whereScanInit(). check-in: c23f5ef3 user: drh tags: trunk | |
| 17:57 | Small size reduction and performance improvement in whereScanNext(). check-in: d861ee17 user: drh tags: trunk | |
| 16:05 | If all branches of an OR optimize scan that is the rhs of a LEFT JOIN use the same index, set the index cursor to return NULL values if there are no matches for a row on the lhs. Fix for ticket [34a579141b2c5ac] check-in: ec9dab80 user: dan tags: trunk | |
| 15:46 | If all branches of an OR optimize scan that is the rhs of a LEFT JOIN use the same index, set the index cursor to return NULL values if there are no matches for a row on the lhs. Closed-Leaf check-in: e7b9bc67 user: dan tags: leftjoin-or-fix | |
| 13:58 | Merge the SQLITE_ENABLE_URI_00_ERROR compile-time option. check-in: 86675ae0 user: drh tags: trunk | |