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56 check-ins using file src/util.c version 7f3e3543

2013-10-07
21:49
Fix compilation issue with MSVC. check-in: 36d64dc3 user: mistachkin tags: trunk
00:36
Restore the hexrekey pragma which was accidently deleted during the pragma refactoring. Make sure the hexkey and hexrekey pragmas do not overflow buffers with a over-length key. check-in: 0aca31e1 user: drh tags: trunk
2013-10-06
22:52
Remove an incorrect debugging assert() that was accidently added during the STAT4 enhancement. check-in: 2bb7f74b user: drh tags: trunk
2013-10-05
02:56
In the index_list pragma, make sure the "r" column is the same on output as it was on input in the sqlite_stat1 table. Closed-Leaf check-in: de78250a user: drh tags: index-scan-rate
2013-10-04
20:39
Merge trunk changes. check-in: c6ac80ed user: drh tags: index-scan-rate
18:29
Further refinements of the index scanning speed logic. check-in: e5d9371d user: drh tags: index-scan-rate
18:17
If an "INSERT INTO ... SELECT" can use the xfer optimization, pass the OPFLAG_BULKCSR hint to btree cursors used to update indices. This results in a tighter key packing. check-in: 087af29e user: dan tags: trunk
15:58
Fix test cases so that they work when the query planner uses index size estimates to determine whether or not to try an covering index scan. check-in: 2f394de8 user: drh tags: index-scan-rate
15:30
Improved estimates of the relative speed of index scans based on declared datatypes of columns in the table. Add "r" column to PRAGMA index_info, showing the estimated relative scan rate. check-in: 07462bb6 user: drh tags: index-scan-rate
02:36
Progress toward using the iScanRatio information on indices. Many tests are still failing. check-in: 6c352edb user: drh tags: index-scan-rate
00:00
Make sure the count(*) optimization works correctly even when partial indices are present. Ticket [a5c8ed66cae]. check-in: 9f2f4c0a user: drh tags: trunk
2013-10-03
20:41
Have FTS take advantage of "docid<?" constraints when they are present. Extend the FTS "incremental doclist" optimization so that it is used for tokens within multi-token phrases. check-in: baf8ce59 user: dan tags: trunk
20:28
Merge latest trunk changes. Closed-Leaf check-in: 24aa20da user: dan tags: fts4-docid-range-constraints
19:27
Allow FTS4 multi-token phrases to use a combination of in-memory and incrementally loaded doclists. This allows phrases to (partially) benefit from incremental doclists without disabling the deferred token optimization. check-in: f6819c5f user: dan tags: fts4-docid-range-constraints
19:21
Experimental branch allowing different postulated scan rates for each index. check-in: d59d97b0 user: drh tags: index-scan-rate
15:39
The sqlite3FixInit() routine cannot fail. So change the return type from "int" to "void". check-in: 500c5932 user: drh tags: trunk
14:08
Rework the PRAGMA implementation to only call sqlite3ReadSchema() from a single place, based on a flag in the pragma table, rather than separately from each case which needs the schema. check-in: 8338232a user: drh tags: trunk
12:29
Return an error if an attempt is made to create a trigger with an SQL variable embedded within it. If such a variable reference is found within a trigger definition loaded from the sqlite_master table, silently replace it with a NULL. check-in: f35f6ae3 user: dan tags: trunk
11:27
Remove unnecessary memset() calls from test code. check-in: eec3187b user: drh tags: trunk
2013-10-02
20:46
In the lemon parser generator, change all hashes to unsigned to avoid potential problems with signed integer overflow. check-in: 8d399a03 user: drh tags: trunk
08:04
Add a test to check that the new multi-token phrase optimization is actually helping. check-in: bc3a2ed5 user: dan tags: fts4-docid-range-constraints
2013-10-01
20:29
Bring some file format comments in btreeInt.h up to date. check-in: 012d54d0 user: drh tags: trunk
20:10
Merge trunk changes with this branch. check-in: 65d9c6fa user: dan tags: fts4-docid-range-constraints
20:02
Allow multi-token phrases to load doclists from the database incrementally. This allows queries that feature such phrases to benefit from the "docid<?" optimization. check-in: ea543f08 user: dan tags: fts4-docid-range-constraints
19:36
Fix comments in the fast_vacuum.c demonstration program. check-in: e0db7b38 user: drh tags: trunk
19:02
Add the "fast_vacuum.c" demonstration program to the tool/ subdirectgory. check-in: 2b60320d user: drh tags: trunk
15:30
Change the ".dump" command in the command-line shell so that it COMMITs if there are database corruption errors but invokes ROLLBACK on any other kind of error. check-in: 47323463 user: drh tags: trunk
2013-09-30
19:33
Fix a minor typo in a comment in where.c. check-in: 9c9fa151 user: drh tags: trunk
19:05
Add some timing tests to the amatch test script. check-in: ad71c72b user: drh tags: trunk
18:16
Merge trunk changes with this branch. check-in: e294a9c7 user: dan tags: fts4-docid-range-constraints
18:14
Fix a performance problem in the FTS4 auxiliary functions triggered by an OR clause in the full-text query. check-in: fa0f2f0e user: dan tags: trunk
17:37
Fix memory leaks in the amatch extension. Add a few simple test cases. check-in: 60413473 user: drh tags: trunk
11:42
Have fts4 full-text queries consider "docid<?" and similar constraints. check-in: 6622424a user: dan tags: fts4-docid-range-constraints
11:01
Update and modernize an obsolete comment associated with VACUUM. No changes to code. check-in: 94c914e3 user: drh tags: trunk
2013-09-29
04:56
Fix typo in comment. No changes to code. check-in: 0b7bd468 user: mistachkin tags: trunk
2013-09-28
16:43
Add new test file fts3defer3.test. check-in: a6cd14ef user: dan tags: trunk
13:28
In the nextchar.c extension, allow the second argument to the next_char() function to be a subquery. check-in: 59b9fa22 user: drh tags: trunk
12:40
Updates to the sqlite3_analyzer utility: Change the names of some labels, especially change "Fragmentation" to "Non-sequential pages". Revise the computation of non-sequential pages so that it ignores itercalated non-leaf pages (overflow and index pages). check-in: 3e5c7771 user: drh tags: trunk
2013-09-26
15:21
Obtain the required shared-cache write-lock when executing "DELETE FROM tbl" statements. Fix for [1e1321ee98]. check-in: 1f8f4fdf user: dan tags: trunk
11:04
Fix a faulty assert() in sqlite3BtreeBeginTrans() that may fail in shared-cache mode. check-in: 1e1321ee user: dan tags: trunk
2013-09-24
19:07
Merge updates from trunk. check-in: 435ce3b3 user: mistachkin tags: toTypeFuncs
2013-09-18
11:16
Test that the unicode61 tokenchars= and separators= options work with the fts3tokenize virtual table. check-in: ed240514 user: dan tags: trunk
2013-09-17
23:36
Clear the current time value on prepared statements when the prepared statement is reset. check-in: cebd6fc5 user: drh tags: trunk
2013-09-16
20:46
Readability improvements to the Win32 RC file. check-in: e6459062 user: mistachkin tags: trunk
19:27
Minor consistency fixes to the Win32 RC file. check-in: 619c5211 user: mistachkin tags: trunk
12:57
The date and time functions use the exact same notion of "now" for every invocation within the same call to sqlite3_step(). check-in: daf6ba41 user: drh tags: trunk
2013-09-13
23:27
Fix Windows SDK compiler warning. check-in: d5fc3f1d user: mistachkin tags: trunk
23:26
Fix test issues for Windows portability. check-in: 650b3282 user: mistachkin tags: trunk
22:38
VSIX tooling changes to support Visual Studio 2013. check-in: d56fac40 user: mistachkin tags: trunk
21:03
Fix the "const" qualifiers on the pragma name table. check-in: b74e6be8 user: drh tags: trunk
21:01
Add the soft_heap_limit pragma. check-in: c326356f user: drh tags: trunk
19:00
Tweak the new PRAGMA name parser to achieve full branch test coverage. check-in: c82e05c4 user: drh tags: trunk
18:15
Remove one unreachable branch and add asserts() to dupedExprStructSize(). New asserts verify that removed branch is unused and that constants that are ORed together in the output do not overlap. check-in: 86ad358b user: drh tags: trunk
17:47
Adjust the query planner to take into account WHERE clause terms that do not drive indices. Add the unlikely() and likelihood() functions used to give hints to the query planner about the selectivity of WHERE clause terms. check-in: bc446449 user: drh tags: trunk
16:56
Enhance the pragma lookup table generator script to output a comment that gives the number of pragmas. check-in: ca052050 user: drh tags: trunk
16:36
Change the PRAGMA parser to use a binary search for the pragma name. Also: Minor performance enhancement to sqlite3DbFree() and to the token dequoter. check-in: 870c030b user: drh tags: trunk