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100 check-ins occurring around edc9db41f3ee200b.

2017-01-03
18:05
Use the GCC built-in __sync_fetch_and_sub() to make the sqlite3StatusDown() routine atomic, and thereby avoid some mutexing. (check-in: f69ce75b3d user: drh tags: gnu-safe-math)
17:33
Make use of the __buildin_OP_overflow() functions from GCC when doing 64-bit signed integer arithmetic. (check-in: 82cbebb8ee user: drh tags: gnu-safe-math)
16:03
Bump the version number up to 3.16.1. (check-in: a60b60d6b6 user: drh tags: branch-3.16)
15:59
Defer size checking on row-value assignments for when the RHS is a SELECT until after the "*" wildcards have been expanded. (check-in: 5c892938a5 user: drh tags: branch-3.16)
15:57
Fix the row-values in UPDATE statements within TRIGGER problem identified by ticket [8c9458e7]. (check-in: bf984e980c user: drh tags: branch-3.16)
14:45
Add the experimental affinity() SQL function when SQLITE_DEBUG is defined. (check-in: bed0eaa5f5 user: drh tags: trunk)
14:39
Put the affinity() function implementation inside of #ifdef SQLITE_DEBUG. (Closed-Leaf check-in: f778f58ae4 user: drh tags: affinity-sql-func)
14:30
Merge all the latest changes from trunk. (check-in: c27cd8a812 user: drh tags: affinity-sql-func)
13:45
Defer size checking on row-value assignments for when the RHS is a SELECT until after the "*" wildcards have been expanded. (check-in: 36944be6be user: drh tags: trunk)
11:59
Fix a typo on a comment. No code changes. (check-in: abc27b6023 user: drh tags: trunk)
08:11
Add test cases for the fix in [f12ed3ce]. No problems discovered. (check-in: 548532fdcf user: dan tags: trunk)
02:58
Improvements to the way vector assignment size checking is done. Size checks when the RHS is a SELECT are deferred until after "*" wildcards are expanded. (Closed-Leaf check-in: 696219b110 user: drh tags: vector-size-check)
01:24
Fix the row-values in UPDATE statements within TRIGGER problem identified by ticket [8c9458e7]. (check-in: f12ed3ce0b user: drh tags: trunk)
00:27
Improved assert()s on the sqlite3ExprListDup() logic for TK_SELECT_COLUMN. (Closed-Leaf check-in: 14da99d41f user: drh tags: rowvalue-update-trigger)
2017-01-02
23:43
Test cases for the row-value UPDATE TRIGGER fix. (check-in: b9b964373c user: drh tags: rowvalue-update-trigger)
23:18
Put an ALWAYS() on an unreachable branch in the sqlite3ExprListDup() routine. (check-in: 2caaaab5e0 user: drh tags: rowvalue-update-trigger)
22:36
Proposed fix for the row-value TRIGGER UPDATE problem described in ticket [8c9458e7]. (check-in: 61a442ea2c user: drh tags: rowvalue-update-trigger)
19:10
Increase the version number to 3.17.0 for the next release cycle. (check-in: 16415b5aad user: drh tags: trunk)
19:02
Provide the SQLITE_DEFAULT_LOOKASIDE compile-time option and make it's default value be 1200,100 (raised from 512,125 in the latest release). (check-in: 584da48f9e user: drh tags: trunk)
18:40
Change SQLITE_DEFAULT_PCACHE_INITSZ from 100 to 20, which is experimentally determined to be slightly faster. (check-in: 12d9493cb2 user: drh tags: trunk)
18:19
Avoid unnecessary calls to sqlite3BtreeEnterAll() and sqlite3BtreeLeaveAll() when no btree is using shared-cache. (check-in: cfb3158204 user: drh tags: trunk)
12:20
Add the --all option to the wordcount test program. Fix the speedtest1 test program so that it builds on MSVC and so that the --lookaside 0 0 option works. (check-in: cb338f367e user: drh tags: trunk)
11:57
Version 3.16.0 (check-in: 04ac0b75b1 user: drh tags: trunk, release, version-3.16.0)
2017-01-01
12:44
Detect row-value comparison size mismatches even when the size of one operand is obscured by an unexpanded subquery. (check-in: 2c4d167ccd user: drh tags: trunk)
2016-12-31
21:55
Add the --help and --all options to the wordcount test utility. (Closed-Leaf check-in: 18baeadfc8 user: drh tags: wordcount-enhancement)
18:37
In speedtest1.c, make the "--lookaside 0 0" option completely disable lookaside. (Closed-Leaf check-in: 52b99bcbf1 user: drh tags: speedtest1)
14:33
Minor #include change to speedtest1.c so that it will compile under MSVC. (check-in: 8c28fde004 user: drh tags: speedtest1)
2016-12-30
17:40
Fix a crash that could occur following an OOM in the group_concat() function if the second argument is an SQLITE_BLOB value. (check-in: 14d855d2b2 user: dan tags: trunk)
15:16
Strengthen the defense against OOM in the instr() SQL function. (check-in: a0971e7136 user: drh tags: trunk)
14:25
Add a test to ensure that the app-defined pcache xFetch() method is never passed a key of zero. (check-in: 0bdbe49c6d user: drh tags: trunk)
14:15
Avoid passing NULL pointers to memcmp() or memcpy(), even when the "number-of-bytes" argument is passed 0. (check-in: 56ff72ab44 user: dan tags: trunk)
13:55
Clarify the expectations for the behavior of the xFetch method on the sqlite3_pcache_methods object for the case when the key is zero. (Closed-Leaf check-in: b0810ac1b2 user: drh tags: pcache1-zero-page)
13:40
Improved detection of zero page numbers in the page cache. (check-in: 5550e815dd user: drh tags: pcache1-zero-page)
12:10
Fix a harmless compiler warning in fuzzcheck.c (check-in: 2842bc6053 user: drh tags: trunk)
12:06
Disable the pagerAcquireMapPage() routine if memory-mapped I/O is disabled. This fixes a harmless compiler warning on OpenBSD. (check-in: 3e25ba6e42 user: drh tags: trunk)
00:09
Encode a 64-bit integer literal in date.c as a constant expression so that it works on older compilers. Also fix a harmless compiler warning in vdbe.c. (check-in: f57952bac6 user: drh tags: trunk)
2016-12-29
19:48
Fix harmless compiler warnings in the command-line shell and in Lemon. (check-in: afcdc4a60e user: drh tags: trunk)
17:25
In kvtest.c, use stat() instead of fseek()/ftell() to determine the size of a BLOB to be read directly from disk. This makes the pile-of-files database more competative against SQLite. (check-in: a7dca29f03 user: drh tags: trunk)
16:58
Add the kvtest.c test program used to show that it is many times faster to read thumbnail and similar BLOBs out of an SQLite database than it is to read them as separate files from the filesystem. (check-in: 8074d59cf1 user: drh tags: trunk)
16:49
Add more detail to the header command to further explain how to compile and use the kvtest.c utility. (Closed-Leaf check-in: 55d29839c9 user: drh tags: kvtest)
16:18
Fix kvtest.c so that it compiles using MSVC. (check-in: e2bbeae7e7 user: drh tags: kvtest)
15:26
In kvtest.c: do not show the --cache-size setting on fopen() runs. Show progress for the (potentially slow) "export" command. (check-in: b0f58d2470 user: drh tags: kvtest)
14:44
Improvements to the kvtest.c utility. Added the --cache-size option. Additional reporting of version and settings at the end of "./kvtest run". (check-in: f6fcac6ae8 user: drh tags: kvtest)
03:57
Add the kvtest.c test program for measuring key/value read performance under various scenarios. (check-in: 489e0787c1 user: drh tags: kvtest)
2016-12-27
15:59
Do not allow the nockpt.test module to run under the inmemory_journal permutation. (check-in: a6af06f164 user: drh tags: trunk)
13:33
Allow sqlite3_interrupt() to be invoked on a database connection that is in the process of being closed even if SQLITE_ENABLE_API_ARMOR is defined. (check-in: 7854bee260 user: drh tags: trunk)
12:45
Adjust a corruption test case to accommodate the sqlite3BtreeInsert() optimization of check-in [0b86fbca66]. (check-in: 4cb0945f13 user: drh tags: trunk)
12:35
Disable new test modules nockpt.test and interrupt2.test for incompatible permutations. Add a CORRUPT_DB term to an assert() in vdbe.c. (check-in: a54e619e6f user: drh tags: trunk)
12:08
Avoid a potential (harmless) signed integer overflow in memory usage accounting when calling sqlite3_realloc() to reduce the size of an allocation. (check-in: 2d71cbdf6b user: drh tags: trunk)
02:43
Minor changes to make some newer test cases work under more compile-time options. (check-in: 382eea36c5 user: drh tags: trunk)
2016-12-26
12:25
During fuzz testing with the fuzzcheck utility program, impose a record length limit of 100MB and a limit on the length of LIKE strings of 50 bytes. (check-in: edc9db41f3 user: drh tags: trunk)
12:14
Enable ossfuzz.c to build even if SQLITE_OMIT_PROGRESS_CALLBACK is defined. (check-in: a37c00dcd1 user: drh tags: trunk)
01:41
Remove an incorrect ALWAYS() macro from balance_nonroot(), which could result in corrupt databases if it were optimized out. This ALWAYS was added only two weeks ago (check-in [f9f2e23bbd68a]) and has never appeared in an official release. (check-in: e447b23cfd user: drh tags: trunk)
00:18
Add the built-in affinity() SQL function. (check-in: 57e40e1cb1 user: drh tags: affinity-sql-func)
00:15
Enhance the fuzztest utility with the --prng-seed option. Always reseed the PRNG prior to each test. (check-in: 8c5187f69d user: drh tags: trunk)
2016-12-24
21:32
Combine the implementations of the ".tables" and ".indexes" commands in the command-line shell. The ".indexes" command now puts the indexes in multiple columns, just like ".tables" and shows all indexes in all attached databases. (check-in: def2933365 user: drh tags: trunk)
19:37
The schema name "main" is always an acceptable alias for the primary database even if the primary database is renamed using SQLITE_DBCONFIG_MAINDBNAME. (check-in: 2f481b854f user: drh tags: trunk)
18:18
Change the output format of the ".databases" command in the command-line shell so that it shows the schema name, a colon, and the corresponding filename. (check-in: 8558512e9c user: drh tags: trunk)
18:04
In the command-line shell, improve the formatting to the ".databases" command and on the ".tables" command, only show the schema prefix for databases past the first ("main") database. (check-in: c0d5626e27 user: drh tags: trunk)
2016-12-23
16:05
Fill in missing opcode documentation entries for OP_SorterNext and OP_SorterSort. (check-in: 2940661b8c user: drh tags: trunk)
13:54
Use the VList object to capture the mapping between SQL parameter names and variable numbers in a single memory allocation. (check-in: 99fddf2ecb user: drh tags: trunk)
13:52
Add check to prevent a VList from growing after pointers to labels have been taken. (Closed-Leaf check-in: aa23d7eaf6 user: drh tags: VList)
13:30
Fix the VList object so that it actually works. (check-in: 9dcd85698a user: drh tags: VList)
03:59
Use the VList object to replace Parse.azVar for tracking the mapping between SQL parameter names and parameter numbers. There is a performance improvement, though there are still a few hiccups in the current code. (check-in: 68ecafa142 user: drh tags: VList)
2016-12-22
14:53
Fix harmless compiler warnings. (check-in: fa86db2f91 user: drh tags: trunk)
2016-12-21
21:26
Change the default lookaside configuration from 500 slots of 128 bytes each to 125 slots of 512 bytes each. This uses the same amount of memory (64,000 bytes) but seems to perform much better in test applications. (check-in: 52a12e47de user: drh tags: trunk)
19:45
Simplifications to the way UnpackedRecord objects are allocated. Smaller and faster code that also fixes a subtle (currently unreachable) bug. (check-in: f7ab01f254 user: drh tags: trunk)
2016-12-18
17:42
Change the OP_IfNotZero opcode so that it decrements register P1 by 1 rather than the value in P3, and so that it only decrements if originally positive. This avoids decrementing the smallest 64-bit signed integer. (check-in: 165c044686 user: drh tags: trunk)
2016-12-17
21:07
Refinements to the new dbfuzz test program. (check-in: 50325abe79 user: drh tags: trunk)
20:27
Enhance fuzzershell.c to read and execute SQL commands in the autoexec table of the database under test. Add the dbfuzz.c test program combining selected features of fuzzershell.c and fuzzcheck.c. (check-in: ef6e071a62 user: drh tags: trunk)
08:18
Fix a problem in the shell tools readfile() command causing blobs to be truncated at the first embedded 0x00 byte in release builds, or an assert() to fail in a debug build. (check-in: 8dedd6ad44 user: dan tags: trunk)
2016-12-16
21:29
Merge recent enhancements from trunk, and especially the pragma-as-vtab change. (check-in: 4b1e780433 user: drh tags: apple-osx)
21:15
Merge the pragma-as-vtab enhancement from trunk. (check-in: 89250777b2 user: drh tags: est_count_pragma)
21:02
Fix a potential memory leak following an OOM error in the pragma processing. (check-in: 396ab8f87e user: drh tags: est_count_pragma)
18:43
Add the ".lint fkey-indexes" command to the command-line shell. (check-in: 94689e3bda user: drh tags: trunk)
18:41
Fix minor issues with the ".lint" command implemention in the shell and the shell help text related to ".lint". (Closed-Leaf check-in: 1268dc7771 user: drh tags: fkey-missing-indexes)
18:14
Built-in PRAGMA statements without side-effects can be invoked as table-valued functions by prefixing their name with "pragma_". (check-in: d66ec5cfb6 user: drh tags: trunk)
17:28
Change ".fkey_missing_indexes" to ".lint fkey-indexes". (check-in: ee621ade38 user: dan tags: fkey-missing-indexes)
16:49
Experimental merge of the est_count_pragma and the pragma-as-vtab branches. (Closed-Leaf check-in: 4b73ee33f3 user: drh tags: est-count-pragma-vtab)
16:44
Update .fkey_missing_indexes to use the built-in pragma vtabs. (check-in: 3ab05987b0 user: dan tags: fkey-missing-indexes)
16:13
Merge the pragma-as-vtab change into this branch. (check-in: 4ba45e7223 user: dan tags: fkey-missing-indexes)
15:57
Merge recent trunk enhancements. (check-in: 74a0ca1f15 user: drh tags: est_count_pragma)
15:05
Fix a problem causing the planner to generate sub-optimal plans for some queries that use recursive WITH sub-queries with LIMIT clauses. (check-in: 053a149cc8 user: dan tags: trunk)
04:20
Fix an error in the way the "schema" argument to some pragma virtual tables is handled. (Closed-Leaf check-in: 546821e29e user: drh tags: pragma-as-vtab)
02:31
Simplifications to facilitate full test coverage. (check-in: 01afc51597 user: drh tags: pragma-as-vtab)
02:14
Minor bug fixes and enhancements to the pragma eponymous virtual tables. (check-in: 3f8f461504 user: drh tags: pragma-as-vtab)
01:09
Merge enhancements from trunk, and especially the ability to use temp.sqlite_master as an alias for sqlite_temp_master. (check-in: 994a4401f5 user: drh tags: pragma-as-vtab)
01:00
All temp.sqlite_master to be used as an alias for sqlite_temp_master. (check-in: 8d646905b8 user: drh tags: trunk)
2016-12-15
21:33
Fix the cost estimation in the BestIndex method of the eponymous pragma virtual table implementation. (check-in: 7126807a18 user: drh tags: pragma-as-vtab)
21:11
The pragma as eponymous virtual table mechanism now appears to work. (check-in: 2c274a1a7b user: drh tags: pragma-as-vtab)
20:59
Code to automatically create eponymous virtual tables for read-only pragmas. Compiles, but does not yet work. (check-in: 988a61e8b0 user: drh tags: pragma-as-vtab)
18:59
Do exponential rather than linear expansion of the SrcList.a array when appending new elements, to reduce the number of malloc() calls. (check-in: 4e3749127e user: drh tags: trunk)
16:01
Do more pragma processing from tables rather than in-line code. (Closed-Leaf check-in: a88ca3524b user: drh tags: table-driven-pragma)
06:01
Add the -groupbyparent option to the ".fkey_missing_indexes" command. (check-in: 976c51b483 user: dan tags: fkey-missing-indexes)
2016-12-14
19:28
Add the experimental ".fkey_missing_indexes" command to the shell tool. To identify indexes that should be created on child keys if FK processing is to be enabled. (check-in: 7df23aca1f user: dan tags: fkey-missing-indexes)
14:07
Refactor the Table.nRef field as Table.nTabRef for easier grepping. (check-in: 9cae4c2e30 user: drh tags: trunk)
13:54
Increase the size of the reference count on Table objects to 32 bits. (check-in: d08b72c38f user: drh tags: trunk)
11:39
Fix the configure makefile to align it with the manual makefile. Unsaved changes from the previous check-in. (check-in: 00a184b65f user: drh tags: trunk)
11:23
Adjust the unix makefiles so that "make test" runs fuzzcheck prior to even attempting to build the other test programs. (check-in: bb48f7a559 user: drh tags: trunk)
11:14
Three times faster sqlite3SrcListAppend() in the common case by avoiding the call to sqlite3SrcListEnlarge() for the first allocation. (check-in: 0ea2762f1d user: drh tags: trunk)