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100 check-ins occurring around a12d805977.

2016-08-22
20:10
Add support for the SQLITE_DBCONFIG_MAINDBNAME configuration option. check-in: 78395193 user: drh tags: trunk
14:30
Fix the vector BETWEEN operator so that it only evaluates the left-most vector expression once. Add support for vector comparisons in the CASE operator. check-in: 07e69f43 user: drh tags: rowvalue
00:48
Reinstate the mechanism in BETWEEN that avoids evaluating the first expression more than once, but fix the affinity extractor so that it works with this mechanism. The de-duplication of the first expression still does not work for vector expressions, though. check-in: 2f39987f user: drh tags: rowvalue
2016-08-20
22:49
The docs promise the in "x BETWEEN y AND z" the x expression is only evaluated once. That is no longer true, and so some tests are failing. This needs to be fixed before merging to trunk. check-in: e50d264f user: drh tags: rowvalue
21:11
Further comment enhancements. No changes to code. check-in: d4562a9e user: drh tags: rowvalue
21:02
Clarification of code comments in expr.c. Clean up the implementations of sqlite3ExprIsVector() and sqlite3ExprVectorSize() slightly. check-in: 4fb66d65 user: drh tags: rowvalue
18:06
Fixes for problems following OOM errors. check-in: 9041ee4a user: drh tags: rowvalue
17:23
Fix other minor problems with the fts5 snippet() function. check-in: b56b2a85 user: dan tags: fts5-snippet-bias
17:00
Do not duplicate the Expr.pLeft subtree of a TK_SELECT_COLUMN node. check-in: 8384c77e user: drh tags: rowvalue
15:01
Fix a segfault that could occur if a query that used a vector comparison contained certain types of syntax errors. check-in: 203f07c5 user: dan tags: rowvalue
12:00
Improvements to the vector comparison splitter in exprAnalyze(). check-in: a3ffd283 user: drh tags: rowvalue
01:06
Improvements to comments. No code changes. check-in: 4165d20f user: drh tags: rowvalue
00:51
Add support for vector assignments in the SET clause of an UPDATE statement. check-in: f320d47d user: drh tags: rowvalue
00:07
Change the way TK_SELECT_COLUMN is handled so that the subquery is only generated once even if part of the vector comparison is used for indexing and the other part is now. This change also is a pathway to vector assignment in UPDATE statements. check-in: d8feea7d user: drh tags: rowvalue
2016-08-19
19:58
Replace the magic number (-2) with its symbol XN_EXPR in the exprMightBeIndexed() routine. No logic changes. check-in: d4a5af69 user: drh tags: rowvalue
19:12
Improved comments on sqlite3CodeSubquery(). No changes to code. check-in: acea4ee1 user: drh tags: rowvalue
18:40
Show the WhereTerm.iField value on debugging output, when it is non-zero. check-in: 931c9535 user: drh tags: rowvalue
18:37
Register any built-in fts5 module before loading automatic extensions. This allows automatic extensions to register fts5 tokenizers and auxiliary functions. check-in: b10e31dc user: dan tags: fts5-snippet-bias
18:28
Fix an obsolete comment on codeEqualityTerm(). No changes to code. check-in: d07be5af user: drh tags: rowvalue
15:41
Merge recent enhancements from trunk. check-in: b1787236 user: drh tags: rowvalue
15:17
Merge the VACUUM attached database enhancement from trunk. Closed-Leaf check-in: 12d5e38d user: drh tags: dbconfig_maindbname
15:15
Enhance the VACUUM command so that it can operate on an attached database. check-in: 083f9e62 user: drh tags: trunk
15:12
Disable row counting on queries run while doing a VACUUM. Closed-Leaf check-in: ad35ef11 user: drh tags: vacuum-attached-db
14:25
Have the fts5 snippet() function avoid favouring snippets that begin with sentences that do not contain search terms. Add an extra bias in favour of the first sentence in the document. check-in: d8180af2 user: dan tags: fts5-snippet-bias
14:20
Add the capability to VACUUM an attached database by specifying the schema name as an argument to the VACUUM command. Since version 2.0, VACUUM has accepted an argument which was silently ignored. Now it has meaning. check-in: 29d63059 user: drh tags: vacuum-attached-db
2016-08-18
22:44
Add the SQLITE_DBCONFIG_MAINDBNAME interface. check-in: d6e3d579 user: drh tags: dbconfig_maindbname
22:19
Change the name of Db.zName to Db.zDbSName for improved long-term code maintainability. check-in: cb9865e1 user: drh tags: trunk
20:56
Fix a zName to zDbSName conversion missed in the previous check-in. Closed-Leaf check-in: d7cf423c user: drh tags: zDbSName
19:04
Fix a SQL NULL handling bug in the vector IN operator code generation. check-in: 936146b1 user: drh tags: rowvalue
18:09
Display SELECT_COLUMN expressions in the .wheretrace debugging output. check-in: 3b27a5da user: drh tags: rowvalue
17:55
Display VECTOR expressions in .wheretrace and .selecttrace debugging output. check-in: 157347e2 user: drh tags: rowvalue
15:36
Since the TK_VECTOR token is not actually used by the parser, make it an extra token code added by the tool/addopcodes.tcl script during parser build. check-in: b40b202c user: drh tags: rowvalue
15:21
Merge recent enhancements from trunk. check-in: 4768a106 user: drh tags: rowvalue
15:15
Simplify the vector comparison code generator logic, and the resulting VDBE code. check-in: e2ad0b5d user: drh tags: rowvalue
14:47
Adjust some tests to account for recent changes to the fts5 snippet function. check-in: 184ecbe9 user: dan tags: fts5-snippet-bias
14:33
Rename the Db.zName field to Db.zDbSName to make it more descriptive and to distinguish it from all of the other "zName" variables scattered throughout the code. check-in: 92a22f01 user: drh tags: zDbSName
2016-08-17
19:05
Bias the fts5 snippet() function to return snippets that look like they start at the start of sentences. check-in: 60de1594 user: dan tags: fts5-snippet-bias
11:14
Fix a problem in the fts5 snippet() auxiliary function. check-in: a861713c user: dan tags: trunk
2016-08-16
16:46
Fix a bug in destructor processing of Lemon. That has no impact on the SQLite grammar. The bug was introduced by prior work to optimize the Lemon-generated parser used by SQLite. check-in: f9035b8e user: drh tags: trunk
2016-08-13
14:30
Questionable changes to support interruptible checkpoint in ZipVFS. Leaf check-in: c7a9f26d user: dan tags: interruptible-checkpoint
14:17
Remove an unnecessary stack variable from sqlite3VdbeExec(). Closed-Leaf check-in: c54bd9c8 user: drh tags: vector-compare
13:03
Improvements to commits. No code changes. check-in: 18f5a3be user: drh tags: vector-compare
12:37
Fix to the vector less-than operator. All legacy tests passing now. check-in: ec70a67e user: drh tags: vector-compare
10:34
Fix an fts5 problem with corrupt database handling found by address-sanitizer. check-in: e22252e1 user: dan tags: trunk
10:02
Attempt to simplify the logic and generated code for vector comparisons. Basic comparison operators are working, but there are many indexing test failures still to be worked through. check-in: dfc028cf user: drh tags: vector-compare
06:38
Fix a buffer overread in fts5. check-in: fcfbee6c user: dan tags: trunk
2016-08-12
16:21
Have wal file checkpoints exit early if the sqlite3_interrupt() API function is called. check-in: 8a5f41c7 user: dan tags: interruptible-checkpoint
11:25
Add VdbeCoverage() macros on newly added VDBE branch operations. check-in: 381aa731 user: drh tags: rowvalue
11:01
Fix a post-OOM memory leak. check-in: 14009b32 user: drh tags: rowvalue
2016-08-11
19:12
Merge version 3.14 plus some subsequent patches (including the page-cache performance patch) from trunk. check-in: d9f8918c user: drh tags: begin-concurrent
18:53
Version 3.14.1 check-in: a12d8059 user: drh tags: release, branch-3.14, version-3.14.1
18:05
Add the "modeof=<filename>" URI parameter to os_unix.c - used to specify a file to copy permissions from when a new database is created. Also allow passing NULL as the second parameter to sqlite3rbu_vacuum(). check-in: ed406d31 user: dan tags: trunk
13:51
Fix a 1 byte buffer overwrite in the "sqldiff --rbu" command. check-in: 1adb22f5 user: drh tags: branch-3.14
13:08
Increase the version number to 3.14.1. check-in: 34aed3a3 user: drh tags: branch-3.14
13:03
Enhance sqlite3PcacheTruncate() to run faster in the common case where the cutoff is just a few pages less than the page number highwater mark. check-in: 03dceaea user: drh tags: branch-3.14
12:31
Merge recent changes from trunk. check-in: 959677b9 user: drh tags: rowvalue
12:01
Fix some problems with handling "no such collation sequence" errors. check-in: 8278be06 user: dan tags: rowvalue
09:55
Fix a 1 byte buffer overwrite in the "sqldiff --rbu" command. check-in: ab83d707 user: dan tags: trunk
01:24
Fix a harmless compiler warning in FTS5. check-in: 2ea0c8b4 user: drh tags: trunk
2016-08-10
20:02
Optimization to sqlite3WhereExprUsage(). check-in: 95493058 user: drh tags: trunk
19:43
List of MATCH operator names in isMatchOfColumn() should be constant. check-in: 7319d676 user: drh tags: trunk
18:56
Performance enhancement in the expression walker. check-in: ebccbd96 user: drh tags: trunk
15:02
Tweaks to pcache1TruncateUnsafe() to make it slightly smaller and faster and easier to test. check-in: 059f4e2e user: drh tags: trunk
14:40
Rearrange the code inside sqlite3RunParser() routine so that sqlite3Parser() is only called from a single place. This allows sqlite3Parser() to be in-lined, which results in a 0.25% overall performance gain. check-in: 25d1d02b user: drh tags: trunk
13:34
Increment the version number to 3.15. check-in: 8c2701e7 user: drh tags: trunk
13:30
Improved comments on the lempar.c parser template. Adjust the YY_SHIFT_USE_DFLT constant in the Lemon-generated parser tables so as to guarantee that it is always out of range of the yy_lookahead[] table. check-in: 83622f3f user: drh tags: trunk
11:50
Fix pcache1TruncateUnsafe() run faster for the case where iLimit is very close to iMaxKey. check-in: b07a26df user: drh tags: trunk
03:35
Try to make pcache1TruncateUnsafe() run faster for the case where iLimit is very close to iMaxKey. Leaf check-in: 9ab53605 user: drh tags: debug
02:54
Remove all timers and other debugging logs except for the one timer on pcache1TruncateUnsafe(). check-in: 5980e625 user: drh tags: debug
01:43
Performance optimization in the yy_find_shift_action() routine of the Lemon-generated parser. check-in: ba6663be user: drh tags: trunk
2016-08-09
21:08
Prototype for the remember(V,PTR) extension function. Closed-Leaf check-in: f0942c36 user: drh tags: rememberFunc
21:01
Fix harmless compiler warning. check-in: 9a5a4f6e user: drh tags: trunk
19:48
Minor update to the way fts5 column filters are parsed. check-in: 14864f2b user: dan tags: trunk
19:26
Have fts5 interpret column lists that begin with a "-" character as "match any column except" lists. check-in: e5175456 user: dan tags: trunk
11:44
Add another timer on pcache1TruncateUnsafe(). check-in: 42ce53f6 user: drh tags: debug
11:23
Add a debug timer to pcache1Truncate(). Change the formatting of some other messages to make them easier to read. check-in: 7d0af4b5 user: dan tags: debug
05:48
Add rowvalue5.test, which should have been part of the previous commit on this branch. check-in: ea03e219 user: dan tags: rowvalue
01:21
Refocus the timer on the pager_end_transaction() routine. check-in: 9d4eb6e4 user: drh tags: debug
2016-08-08
20:15
Fix some cases involving row values and virtual tables. check-in: 156a41f3 user: dan tags: rowvalue
18:42
Fix the EXPLAIN QUERY PLAN output for row value range constaints that use an index. check-in: bb606511 user: dan tags: rowvalue
16:52
Merge trunk changes with this branch. check-in: 0e927a7e user: dan tags: rowvalue
14:21
Merge all changes from the 3.14 release. check-in: c3cd543f user: drh tags: apple-osx
13:40
Version 3.14 check-in: d5e98057 user: drh tags: trunk, release, version-3.14.0
2016-08-07
18:52
Fix documentation typos. No changes to code. check-in: ebc396a1 user: drh tags: trunk
2016-08-05
20:54
Have the TEA package build without SQLITE_OMIT_DEPRECATED. As it uses recently deprecated interfaces sqlite3_profile() and sqlite3_trace(). check-in: 95578898 user: dan tags: trunk
16:16
Undo commit [f250166bb]. It is required to handle IO and other errors that occur within a VACUUM of a Zipvfs database. check-in: ae72513a user: dan tags: trunk
15:34
Remove an incorrect ALWAYS() statement and add a test case to show when the condition is sometimes false. check-in: 0f57effa user: drh tags: trunk
14:35
Fix a very obscure problem following OOM in sqlite3_declare_vtab(). check-in: 68eac748 user: drh tags: trunk
2016-08-04
14:08
Add extra logging calls to this branch. check-in: 491f1ef3 user: dan tags: debug
13:39
Merge all recent enhancements from trunk. check-in: dacfff51 user: drh tags: apple-osx
13:23
Revert the SQLITE_APICALL changes for now. That changes needs further research before it is released. Deferred until 3.15. check-in: 9adda385 user: drh tags: trunk
12:35
Add the experimental SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION compile-time option. When enabled, the "unknown function" error is suppressed for EXPLAIN and a no-op function named "unknown()" is substituted. This facilitiates using the command-line shell to analyze queries from applications that contain many application-defined functions that are not normally available to the shell. check-in: b7f30a9f user: drh tags: trunk
12:33
Add the experimental SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION compile-time option. When enabled, the "unknown function" error is suppressed for EXPLAIN and a no-op function named "unknown()" is substituted. This facilitiates using the command-line shell to analyze queries from applications that contain many application-defined functions that are not normally available to the shell. check-in: e22ca3cd user: drh tags: apple-osx
09:13
Merge the ORDER BY LIMIT fix, and other enhancements, from trunk. check-in: bf5a9542 user: drh tags: apple-osx
09:09
Make sure the ORDER BY LIMIT optimization is not applied if the inner-most loop can only have a single iteration and is hence not really a loop. check-in: 13e3bd3d user: drh tags: trunk
01:47
Add an experimental SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION compile-time option. This changes has been merged into main branches via cherry-pick. Closed-Leaf check-in: 4ada023c user: drh tags: unknown-function
2016-08-03
18:00
Fix a problem with estimating the number of rows visited by a query that uses a multi-column IN(SELECT...) constraint. check-in: 3c2f908f user: dan tags: rowvalue
16:39
Fix another problem involving vector range constraints and mixed ASC/DESC indexes. check-in: 1559f4c4 user: dan tags: rowvalue
16:14
Fix stat4-based cost estimates for vector range constraints. check-in: 18af74ab user: dan tags: rowvalue
14:51
Fix a typo in a comment in btree.c. No changes to code. check-in: 722c1281 user: drh tags: trunk