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100 ancestors of [36e54cd8]

2017-06-28
15:01
Faster parser stack overflow detection. check-in: 36e54cd8 user: drh tags: trunk
14:26
Minor tweak to the SQL grammar to make the parser tables a few bytes smaller. check-in: cc4810b2 user: drh tags: trunk
13:47
In the lemon-generated parser, store the number of symbols on the RHS of each rule as a negative number and add it to the stack pointer, rather than storing the value as a positive and subtracting it. This makes the parser faster. check-in: b362f0d8 user: drh tags: trunk
11:56
In the lemon-generated parser, automatically promote SHIFTREDUCE actions on nonterminal systems to pure REDUCE actions, for a performance enhancement. check-in: c46d94a8 user: drh tags: trunk
01:21
Simplify error handling logic in sqlite3_exec() to save about 40 bytes. check-in: 6480916c user: drh tags: trunk
01:12
Minor code simplification in the ALTER TABLE logic. check-in: bfc4e7f3 user: drh tags: trunk
00:55
Avoid an unnecessary call to sqlite3XPrintf() in the code generator, for a performance improvement. check-in: 29d6ceb3 user: drh tags: trunk
2017-06-27
23:36
Add SQLITE_DBCONFIG_ENABLE_QPSG that forces the query planner stability guarantee. This is the fix for ticket [b9f010107724c] check-in: b82efd2a user: drh tags: trunk
16:39
Fix a virtual table problem that can occur when the vtab is on the RHS of a LEFT JOIN and there is a MATCH constraint in the ON clause, or when the vtab is in a sub-query that is the RHS of a LEFT JOIN and there is a MATCH constraint in the WHERE clause of the sub-query. check-in: 87b38166 user: dan tags: trunk
2017-06-26
21:08
Add the -withoutnulls option to the "db eval" method in the TCL interface. check-in: 18f0616e user: drh tags: trunk
18:42
The ".import" command of the shell, and the csv virtual table extension both ignore a single UTF-8 BOM at the beginning of their input. check-in: 7c15d762 user: drh tags: trunk
14:46
Make sure sqlite3VdbeSetVarmask() is never invoked when QPSG is enabled. Closed-Leaf check-in: ebcfa73e user: drh tags: enable-QPSG
13:57
Add the SQLITE_DBCONFIG_ENABLE_QPSG option to activate the query planner stability guarantee. This involves refactoring the sqlite3.flags bitvector to carve out a free bit to use. check-in: 7076e828 user: drh tags: enable-QPSG
2017-06-24
19:21
Disable shell tests for the .schema command if virtual tables are not available. check-in: c8186874 user: drh tags: trunk
16:35
Make sure the config.h header is included by ctime.c, if that header exists. check-in: c2ea6293 user: drh tags: trunk
16:03
Query planner tuning: When deciding between two plans with the same cost, bias the selection toward the one that does not use the sorter. check-in: f0ec36d4 user: drh tags: trunk
13:31
Make sure enough memory is allocated for pathological quoting cases when computing a quoted table name in the command-line shell. check-in: 0583b84a user: drh tags: trunk
2017-06-23
15:47
When generating individual loops for each ORed term of an OR scan, move any constant WHERE expressions outside of the loop, as is done for top-level loops. check-in: 712267c9 user: dan tags: trunk
2017-06-22
16:51
When generating individual loops for each ORed term of an OR scan, move any constant WHERE expressions outside of the loop, as is done for top-level loops. Closed-Leaf check-in: e4a022be user: dan tags: or-optimization
2017-06-21
01:36
Enable pragma virtual tables for the integrity_check, quick_check, and foreign_key_check pragmas. check-in: 118f7bb3 user: drh tags: trunk
2017-06-20
18:19
Rename the azCompileOpt global constant to avoid a harmless compiler warning about a name conflict with a local variable. check-in: 94e420ec user: drh tags: trunk
17:43
Ensure that the query planner knows that any column of a flattened LEFT JOIN can be NULL even if that column is labeled with "NOT NULL". Fix for ticket [892fc34f173e99d8]. check-in: 48346268 user: dan tags: trunk
2017-06-17
18:49
Fix a missing comma in the previous check-in. check-in: f3db02f4 user: drh tags: trunk
17:55
Rework the code in ctime.c a bit to report on more compile time options. And to only output configuration options passed in to SQLite, not the default values of #define symbols set automatically. Also generate the large array in ctime.c using new script tool/mkctime.tcl, instead of entering it manually. check-in: 9a443397 user: dan tags: trunk
17:29
Ensure that the value of the THREADSAFE symbol is always included when reporting compile time options, even if it was not explicitly configured. Closed-Leaf check-in: 95141c64 user: dan tags: ctime-refactor
16:39
Add extra test cases for sqlite3changeset_apply() and ALTER TABLE ADD COLUMN. check-in: 603838fc user: dan tags: trunk
2017-06-16
19:51
Rework the code in ctime.c a bit to report on more compile time options. And to only output configuration options passed in to SQLite, not the default values of #define symbols set automatically. Also generate the large array in ctime.c using new script tool/mkctime.tcl, instead of entering it manually. check-in: bc1951d6 user: dan tags: ctime-refactor
18:31
Minor refactoring change to clarify how ATTACH works. No functional changes. check-in: 3944a32e user: drh tags: trunk
13:43
Prevent pagesize changes on VACUUM in encrypted databases even when running the VACUUM on an attached database. check-in: 11693849 user: drh tags: trunk
2017-06-15
16:56
Move the "shell_add_schema()" SQL function used by the ".schema" command of the command-line shell to a different spot in the shell.c source file so that it is not in the middle of an unrelated module. check-in: 254617a1 user: drh tags: trunk
16:45
Fix typo and improve the wording of the description of "Metadata" in the output of the sqlite3_analyzer tool. check-in: ca1ff707 user: drh tags: trunk
13:07
Fix harmless compiler warnings in the shell.c file check-in: 9afd7a2f user: drh tags: trunk
12:50
Improvements to the ".tables" command in the command-line shell so that it shows the name of all schemas if the name is anything other than "main". check-in: c7f778b7 user: drh tags: trunk
12:21
In the command-line shell, enhance the ".schema" command show that it shows the schema for ATTACH-ed databases in addition to "main". check-in: 48e08628 user: drh tags: trunk
00:52
Enhance the sqlite3_analyzer.exe utility so that it computes and shows the number of bytes of metadata on btree pages and per table and index entry. check-in: 43ad41ef user: drh tags: trunk
2017-06-13
16:52
Fix sqlite3rbu_close() so that the pzErrmsg parameter may be passed NULL. check-in: c433672d user: dan tags: trunk
04:31
Fix the processing of double-negatives in WHERE clause constraints with STAT4. Ticket [cfa2c908f2182] check-in: 35b34bdf user: drh tags: trunk
2017-06-11
20:17
Fix an off-by-one error that messes up the display of loop codes in the ".wheretrace" debugging output for queries with more than 62 candidate loops when SQLITE_ENABLE_WHERETRACE is on. check-in: 0bbdaf28 user: drh tags: trunk
19:51
When reusing a materialized view, make sure the estimated number of output rows is correctly initialized to avoid confusing the query planner. check-in: 87aceb41 user: drh tags: trunk
19:40
Fix the sessiondiff test module so that it does not run if the session extension is not enabled. check-in: 8f92b7a6 user: drh tags: trunk
18:26
Fix a potential null-pointer deference following OOM introduced by check-in [e39795d7] (unreleased). check-in: a2f77285 user: drh tags: trunk
2017-06-09
11:43
Update the documentation to make it clear that the table name parameter to sqlite3_table_column_metadata() may not be NULL. check-in: 2881ab1e user: drh tags: trunk
02:27
Adjust the implementation of the ".selftest" feature of the shell to avoid using the deprecated sqlite3_get_table() interface. check-in: 3168e2c9 user: drh tags: trunk
2017-06-08
14:35
Add a testcase() to confirm that an OOM on sqlite3DbStrNDup() is handled correctly in trigger.c. check-in: 343e5599 user: drh tags: trunk
11:14
Ensure pointer map entries are always added when a row that does use overflow pages replaces one that does not in an auto-vacuum database. Fix for [fda22108]. check-in: b30dfba8 user: dan tags: trunk
2017-06-07
22:32
In SQLITE_DEBUG mode, attempt to log the page number of the database that contained the problem when SQLITE_CORRUPT errors are seen. check-in: e39795d7 user: drh tags: trunk
2017-06-06
18:20
Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. check-in: 234ede26 user: drh tags: trunk
2017-06-05
19:20
Fix a subtle bug in the remember UDF of the kvtest.exe utility program. check-in: 9eea3670 user: drh tags: trunk
16:33
Fix a bug in test_fs.c that occurs when the first component of a path contains a GLOB or LIKE escape character. check-in: 73c70590 user: dan tags: trunk
13:28
For the kvtest utility, add the --vacuum option to "kvtest stat" and also run PRAGMA integrity_check with "kvtest stat". check-in: f3c25df4 user: drh tags: trunk
12:29
Fix the column width deduction logic in the command-line shell to account for multi-byte utf8 characters. check-in: ed0842c1 user: drh tags: trunk
10:31
Omit some of the fstree tests in vtabH if the PWD contains LIKE wildcards. check-in: ead29f9c user: drh tags: trunk
2017-06-03
20:09
Initialize a variable to zero to prevent an (incorrect) compiler warning of it potentially being uninitialized. check-in: 65182ce0 user: drh tags: trunk
19:16
Fix the SQLITE_PTR_TO_INT macro so that works on recent versions of LLVM on Macs. check-in: c4089ffb user: drh tags: trunk
18:27
Remove unused header file from kvtest. check-in: dd7e043f user: drh tags: trunk
17:24
In kvtest, add the ability to work with a hierarchy of files on disk, in addition to having all files in the same directory. check-in: f568f666 user: drh tags: trunk
15:17
Add the --nocheckpoint and --multitrans options to kvtest. check-in: 5828633c user: drh tags: trunk
2017-06-02
23:32
Add the --fsync flag to kvtest, and document the --nosync flag. check-in: 7fdc78a6 user: drh tags: trunk
19:31
Work toward enhancing kvtest to measure write performance. check-in: fc73e7d2 user: drh tags: trunk
15:44
Change the name of the OP_Seek opcode into OP_DeferredSeek for better clarity of function. No functional code changes. check-in: ab33d299 user: drh tags: trunk
13:16
Fix a typo in the header comment of the "series.c" virtual table extension. check-in: d637feb4 user: drh tags: trunk
2017-06-01
01:53
Add a comment to the Lemon documentation regarding the security of the lemon.exe command-line tool. check-in: 4c2458c1 user: drh tags: trunk
2017-05-31
17:30
Add the SQLITE_STMTSTATUS_MEMUSED opcode to sqlite3_stmt_status() for finding the heap memory usage by a single prepared statement. check-in: c26cf978 user: drh tags: trunk
16:21
Add the SQLITE_STMTSTATUS_MEMUSED option for sqlite3_stmt_status() that reports the amount of heap memory used for a single prepared statement. Closed-Leaf check-in: b57d5104 user: drh tags: stmtstatus-memused
16:09
Add the experimental "stmts" virtual table for introspection of prepared statements. check-in: cb4c5c66 user: drh tags: trunk
13:45
Avoid allocating excess memory to the KeyInfo objects. check-in: df785943 user: drh tags: trunk
13:27
Remove a completely unnecessary memset() from the INSERT code generator. check-in: 7d58836b user: drh tags: trunk
11:24
Very small performance increase in sqlite3VdbeSetNumCols(). check-in: 8885b446 user: drh tags: trunk
03:20
Reorder fields in the PgHdr object for a performance increase. check-in: 326e63d7 user: drh tags: trunk
02:58
Avoid unnecessary memory zeroing during expression list allocation. check-in: de28e651 user: drh tags: trunk
00:49
Size and performance optimizations to sqlite3ResolveExprNames(). check-in: af8c0fed user: drh tags: trunk
2017-05-30
18:34
Change sqlite3BtreeNext() and sqlite3BtreePrevious() so that they return SQLITE_DONE if they have already reached the end (or beginning) of the table. This gives a performance increase and size reduction. check-in: e972a386 user: drh tags: trunk
18:14
Omit a test of codepoint 0x202F (non-break narrow space) from the fts3 ICU tests. Different versions of ICU apparently handle this obscure codepoint slightly differently. check-in: 69ae6889 user: dan tags: trunk
2017-05-29
22:44
More efficient error handling and reset in the binding mechanism. check-in: 9a3e3b34 user: drh tags: trunk
17:59
Omit unnecessary fstat() calls for determining the database file size, resulting in smaller and faster code. check-in: dd61c736 user: drh tags: trunk
17:43
Fix an issue with OPT_FEATURE_FLAGS in configure.ac. check-in: 43ce3bd3 user: drh tags: trunk
16:45
Avoid unnecessary fstat() calls to determine the database size when transitioning into a read transaction on a rollback-mode database. Closed-Leaf check-in: 6c3476b5 user: drh tags: io-opt
14:57
Avoid unnecessary calls to fstat() to determine the database file size. check-in: c733a1de user: drh tags: io-opt
14:30
Fix a typo in a comment. No code changes. check-in: cb29b838 user: drh tags: trunk
14:26
Optimizations to the Walker object and its methods to make the code a little smaller and to help it run a little faster. check-in: 6854a34e user: drh tags: trunk
13:09
Correctly initialize the iSelectId of FROM clause terms that are a self join of a reused materialized subquery. Without this, the EXPLAIN QUERY PLAN output for the query will identify the subquery using the uninitialized (and arbitrary) iSelectId. check-in: 43c9ae37 user: drh tags: trunk
03:48
Improve shell help text for the '.open' command. check-in: 7cc940a9 user: mistachkin tags: trunk
2017-05-27
22:42
Smaller and faster vdbeSorterCompareText(). check-in: 542dc4c5 user: drh tags: trunk
2017-05-25
21:35
Small performance increase and size decrease in the btreeInitPage() routine. check-in: 6f415833 user: drh tags: trunk
17:27
Merge the LEFT JOIN query flattener fixes from 3.19.2. check-in: 6513e4a1 user: drh tags: trunk
16:50
Version 3.19.2 check-in: edb4e819 user: drh tags: release, branch-3.19, version-3.19.2
11:39
The SQLITE_EXTRA_IFNULLROW compile-time option causes OP_IfNullRow opcodes to be issued for references to the right-hand side table of *any* flattened join, not just LEFT JOINs. This puts extra stress on the OP_IfNUllRow opcodes for testing purposes. check-in: 1a074c8a user: drh tags: branch-3.19
00:28
The TK_IF_NULL_ROW expression node must be treated as a variable that references the table Expr.iTable. Proposed fix for ticket [7fde638e94287d2c]. check-in: b30a364a user: drh tags: branch-3.19
00:12
Increase the version number to 3.19.2 since ticket [7fde638e94287d2] is going to necessitate another patch release. check-in: c315727a user: drh tags: branch-3.19
00:08
The TK_IF_NULL_ROW expression node must be treated as a variable that references the table Expr.iTable. Proposed fix for ticket [7fde638e94287d2c]. check-in: 77fc2301 user: drh tags: trunk
2017-05-24
15:32
Fix harmless compiler warnings in FTS5. check-in: 57a60e95 user: mistachkin tags: trunk
13:08
Version 3.19.1 check-in: f6d7b988 user: drh tags: release, branch-3.19, version-3.19.1
04:18
Fix a problem in STAT4 equality estimation for multi-column indexes introduced by check-in [3e0590dee0e68cc1599]. check-in: cfb0d9e0 user: drh tags: trunk
2017-05-23
20:00
Remove the msvc.h header file from the autoconf tarball. check-in: 84996aef user: drh tags: trunk
19:35
Do not use strcpy() in the (obsolete) amatch extension. In releasetest.tcl, run Apple tests using -Os instead of -O1 check-in: 4440e420 user: drh tags: trunk
15:33
Disable the LEFT JOIN flattening optimization for aggregate queries, as it does not currently work. Further fix for ticket [cad1ab4cb7b0fc344]. check-in: 05ada741 user: drh tags: branch-3.19
15:21
Disable the LEFT JOIN flattening optimization for aggregate queries, as it does not currently work. Further fix for ticket [cad1ab4cb7b0fc344]. check-in: 44b21e35 user: drh tags: trunk
12:44
Ensure that the expression rewriter inside the query flattener decends into the substructure of the TK_IF_NULL_ROW operator. This is a continuation of the fix for ticket [cad1ab4cb7b0fc344]. check-in: 28d2902d user: drh tags: branch-3.19
12:36
Ensure that the expression rewriter inside the query flattener decends into the substructure of the TK_IF_NULL_ROW operator. This is a continuation of the fix for ticket [cad1ab4cb7b0fc344]. check-in: 941d8142 user: drh tags: trunk
01:35
Change the version number to 3.19.1. check-in: 16656b8f user: drh tags: branch-3.19
01:30
Remove a surplus semicolon, which was harmless on gcc and clang but caused compile-time errors on msvc. This only comes up using the encryption extension. check-in: 4510d55d user: drh tags: branch-3.19