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50 check-ins occurring around a17712bf8d98dd48.

2016-02-05
01:55
Improvements to the way that OOM errors are processed. (check-in: c3ef03478a user: drh tags: oom-handling)
2016-02-04
19:50
Temporarily back out the 0.5% performance improvement from check-in [632071bac5ff32]. Need a more elaborate solution that works with reentrant virtual tables and SQL functions. (check-in: 42736fb0ad user: drh tags: trunk)
19:45
Further improve performance of unindexed fts5 prefix queries. (check-in: c9c6457d8e user: dan tags: trunk)
17:31
Avoid running some particularly time-consuming tests as part of veryquick.test. (check-in: f465944b75 user: dan tags: trunk)
11:48
Remove unnecessary sets of db->mallocFailed. (check-in: b787165b25 user: drh tags: trunk)
11:15
Use sqlite3_malloc64() instead of sqlite3_malloc() in the spellfix extension. (check-in: 634d008c34 user: drh tags: trunk)
10:28
Escape control characters in JSON. Fix for ticket [ad2559db380abf8]. (check-in: 4f1b5229a3 user: drh tags: trunk)
09:48
Refinements to synchronous logic: (1) Use PAGER_SYNCHRONOUS_FULL rather than the corresponding magic number. (2) Honor SQLITE_NO_SYNC on xDelete calls with sync (3) Count xDelete syncs during testing (4) Fix #ifs on SQLITE_EXTRA_DURABLE so that directory syncs on journal unlink are off by default. (check-in: e3157cb5ad user: drh tags: trunk)
02:34
Add and use the sqlite3VdbeZeroRegister() interface for coding the common operation of writing zero into a register. (Leaf check-in: 1c8d300189 user: drh tags: zero-register)
2016-02-03
22:14
In the VDBE loop, only check for OOM errors at jumps rather than after every opcode, for about a 0.5% performance increase. (check-in: 632071bac5 user: drh tags: trunk)
20:04
Improve performance of fts5 prefix queries on detail=col tables. (check-in: ca11f46db0 user: dan tags: trunk)
19:52
Fix markup errors in comments used to generate the documentation - specifically in the documentation on the OP_Seek opcode. (check-in: ef252bc4b5 user: drh tags: trunk)
19:20
Add "PRAGMA synchronous=EXTRA" which syncs the directory containing the rollback journal when the rollback journal is deleted in order to commit a transaction in DELETE mode. (check-in: af92401826 user: drh tags: trunk)
01:55
Enhance the internal sqlite3VdbeAddOpList() interface to automatically update jump destinations. Use this feature to simplify the AUTOINCREMENT code generator. (check-in: ae8b9d2edf user: drh tags: trunk)
2016-02-02
21:19
Add tests to restore full coverage of fts5 code. (check-in: 063755c815 user: dan tags: trunk)
17:40
Enhance the performance of fts5 AND and OR queries. (check-in: 62ea9e5ab8 user: dan tags: trunk)
02:53
Merge recent enhancements from trunk. (check-in: 347f6a80c2 user: drh tags: begin-concurrent)
02:30
Merge recent enhancements from trunk. (check-in: e6a4a16312 user: drh tags: apple-osx)
02:22
Merge all recent enhancements from trunk. (check-in: f3f9200115 user: drh tags: sessions)
02:04
Enhance the comment on the sqlite3_index_constraint object to bring attention to the fact than iColumn field can be negative for a rowid. (check-in: d8b7b1996e user: drh tags: trunk)
00:59
Add the SQLITE_DBCONFIG_REQUIRE_WRITE_TXN connection setting, which if enabled requires all write operations to be enclosed within BEGIN ... COMMIT. (Leaf check-in: 7453790c3b user: drh tags: require-write-txn)
2016-02-01
21:48
Change the OP_SetCookie instruction to write the literal P3 value, not the value in register P3. (check-in: 6d7d4703eb user: drh tags: trunk)
20:12
Improve performance of fts5 queries. (check-in: 2334e88244 user: dan tags: trunk)
17:20
Number VDBE opcodes starting with 0 instead of 1, as this obviates the lower-bound test on "switch(opcode){...}", making the code smaller and faster. (check-in: 4c9222f75b user: drh tags: trunk)
16:36
Update walcrash.test to ensure that, during a particular test, enough data is written to cause SQLite to sync the wal file 14 times. (check-in: 5d7c092869 user: dan tags: trunk)
13:58
Fix a problem causing the OR/covering-index optimization to be disabled if compile time parameter SQLITE_MAX_ATTACHED were set to greater than 30. (check-in: a17712bf8d user: dan tags: trunk)
13:21
Minor simplification to the OP_AutoCommit opcode. Fix some code comments related to transaction control. (check-in: a9b6a0672f user: drh tags: trunk)
00:21
Fix an assert() that might fail on a corrupt database. (check-in: 22eaced727 user: drh tags: trunk)
2016-01-30
21:09
Fix new test cases in stat.test so that they work with -DSQLITE_DEFAULT_AUTOVACUUM=1 builds. (check-in: a2810cf65d user: dan tags: trunk)
19:16
Performance enhancement for fts5 column filter queries on detail=full tables. (check-in: 13fb4aa6a8 user: dan tags: trunk)
16:59
Merge the implementation of OP_IdxRowid and OP_Seek so that OP_Seek no longer requires the rowid register and a separate OP_IdxRowid call. Shorter and faster prepared statements result. (check-in: 9bec50a1e7 user: drh tags: trunk)
15:52
Only honor the register subtype value if the MEM_Subtype flag is set. Revised and improved fix for ticket [f45ac567eaa9f9]. (check-in: 1f4c667f37 user: drh tags: trunk)
15:46
A different way to clear the subtype on VDBE registers when the value of the register is overwritten with new content. To fix [[f45ac567eaa9f93]. (Closed-Leaf check-in: 2e9fb1295c user: dan tags: clear-subtype-flag)
14:53
Take care to clear the subtype on VDBE registers when the value of the register is overwritten with new content. (Closed-Leaf check-in: ec653cbcae user: drh tags: clear-subtype-fail)
14:17
Output subtype information on register traces for PRAGMA vdbe_trace. (check-in: 96b780209c user: drh tags: trunk)
13:32
Add the BTREE_FORDELETE and BTREE_AUXDELETE flags to the b-tree layer interface and use them. Add assert() statement to verify that they are correct. (check-in: 85c467041c user: drh tags: trunk)
12:50
Simplification and size reduction to the printf logic. Remove the bFlags parameter from sqlite3VXPrintf() and sqlite3XPrintf(). Use sqlite3XPrintf() instead of sqlite3_snprintf() for rendering P4 values in EXPLAIN output. (check-in: 0bdb41c45a user: drh tags: trunk)
02:10
Make use of covering indexes in the OR optimization. (check-in: 9de3d71230 user: drh tags: trunk)
00:45
Change the P4_INTARRAY so that always begins with a length integer. Print the content of the INTARRAY on EXPLAIN output. (Closed-Leaf check-in: 6c520d5726 user: drh tags: covering-or)
2016-01-29
21:16
Add tests for the change on this branch. (check-in: 7cb697f829 user: dan tags: covering-or)
20:58
Different comment on the alternative cursor fields of VdbeCursor. (check-in: 6e3dcb6d7d user: drh tags: covering-or)
19:29
Experimental attempt to make better use of covering indexes within OR queries. (check-in: a323ac3a9d user: dan tags: covering-or)
19:04
Improvements to FORDELETE processing, including bug fixes and adding assert() statements to help verify correct operation. (Closed-Leaf check-in: 46080b0474 user: drh tags: btree-fordelete-flag)
18:48
Remove a stray "exit" in a test script. (Closed-Leaf check-in: 10c88bf9f2 user: drh tags: fordelete-assert)
18:11
Avoid unnecessary WHERE clause term tests when coding a join where one of the tables contains a OR constraint. (check-in: 512caa1ad3 user: drh tags: trunk)
18:04
Prepend "rc!=SQLITE_OK || " to the nExtraDelete assert() condition. (check-in: 2a055ed0af user: dan tags: fordelete-assert)
16:57
Avoid unnecessary WHERE clause term tests when coding a join where one of the tables contains a OR constraint. (Closed-Leaf check-in: ab94603974 user: drh tags: OR-clause-improvement)
08:38
Avoid two more instances of pointer arithmetic on freed pointers. (check-in: 2910ef6409 user: dan tags: trunk)
2016-01-28
18:22
Modify the order of terms in an "if" condition to avoid implicitly comparing a dangling pointer to NULL following an OOM error. (check-in: 5372f80083 user: dan tags: trunk)
17:06
Modifications to ensure the nExtraDelete-related assert() statement does not fail. (check-in: f43ff8f82d user: dan tags: fordelete-assert)