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232 ancestors of trunk:202102191432 back to version-3.34.0

2021-02-19
14:32
Add support for "ALTER TABLE ... DROP COLUMN ..." commands. (check-in: c844a331 user: dan tags: trunk)
14:13
Fix a crash that could occur in ALTER TABLE DROP COLUMN if the sqlite_schema table was corrupt. (Closed-Leaf check-in: 126ee1ec user: dan tags: alter-table-drop-column)
09:46
Omit an branch made unreachable by the improved error message from dropping the last column of a table. (check-in: c5719fc5 user: drh tags: alter-table-drop-column)
09:36
The COLUMN keyword in ALTER TABLE DROP COLUMN is optional. (check-in: a22f87fb user: drh tags: alter-table-drop-column)
09:09
Give a better error message on DROP COLUMN when attempting to drop the last column of a table. (check-in: 5e1f362b user: drh tags: alter-table-drop-column)
02:30
Add a NEVER() to an unreachable branch in the DROP COLUMN logic. (check-in: 963f498a user: drh tags: alter-table-drop-column)
2021-02-18
23:53
Add missing VdbeCoverage() macros. (check-in: 9bb720e6 user: drh tags: alter-table-drop-column)
23:03
Enhance renameParseSql() to better handle OOMs. (check-in: 68bcde7a user: drh tags: alter-table-drop-column)
22:47
Merge changes from trunk into the alter-table-drop-column branch. (check-in: 9ea64007 user: drh tags: alter-table-drop-column)
20:27
Fix DROP COLUMN so that it works even if the user has registered an authorizer callback. (check-in: e5f14418 user: dan tags: alter-table-drop-column)
19:25
Fix a problem with schema error detection when processing ALTER TABLE DROP COLUMN commands. (check-in: 565a6fd0 user: dan tags: alter-table-drop-column)
17:48
Add test cases for ALTER TABLE DROP COLUMN. (check-in: 204ee5e2 user: dan tags: alter-table-drop-column)
15:59
Avoid invoking the update or pre-update hooks during VACUUM operations. (check-in: 3c25cb4a user: dan tags: trunk)
15:45
Improvement to the INSERT optimization of check-in [16ac213c57196361] so that it works with SQLITE_ENABLE_HIDDEN_COLUMN but is also easier to maintain and a little faster as well. (check-in: f985a78e user: drh tags: trunk)
14:27
Disable the optimization of [16ac213c57196361] when the SQLITE_ENABLE_HIDDEN_COLUMN compile-time option is used, as the optimization does not work in that case. (check-in: 5168b06b user: drh tags: trunk)
12:18
Ensure that the pre-update hook is invoked for INSERT operations on WITHOUT ROWID tables that use the xfer optimization. (check-in: 66bbad23 user: dan tags: trunk)
01:02
Add missing VdbeCoverage() macros to some of the new RETURNING code. (check-in: 53a53909 user: drh tags: trunk)
00:59
Performance optimization in the resolver. (check-in: 1aafb94d user: drh tags: trunk)
00:26
Performance optimization in the code generator for INSERT for the common case where the target table has neither generated nor hidden columns. Also fix a redundant (and thus unreachable) branch in the resolver. (check-in: 16ac213c user: drh tags: trunk)
2021-02-17
21:13
Use the sqlite3ParserAddCleanup() mechanism to ensure that the AggInfo structure associated with an aggregate query is deallocated, for a performance increase and size reduction. (check-in: 7a139967 user: drh tags: trunk)
20:46
Fix a problem with OOM error handling in the new code on this branch. (check-in: ea999c9d user: dan tags: alter-table-drop-column)
20:19
Merge trunk changes into this branch. (check-in: 0cd5e2f9 user: dan tags: alter-table-drop-column)
20:08
Fix various issues with the changes on this branch. Add test cases for the same. (check-in: 10538ec6 user: dan tags: alter-table-drop-column)
13:19
Enhance the ".once" and ".output" commands in the CLI so that if the filename argument begins with "|" the name becomes the concatenation of all subsequent arguments. Hence, commands like ".once | open -f" become possible without the need for quotes. (check-in: c46a94a6 user: drh tags: trunk)
2021-02-16
20:43
Add experimental implementation of ALTER TABLE DROP COLUMN. Only some cases work so far. (check-in: f0217937 user: dan tags: alter-table-drop-column)
20:32
Simplification to the resolveAlias() routine. (check-in: 00bead39 user: drh tags: trunk)
20:01
New SELECTTRACE macros more clearly deliniate when the query planner is invoked in the middle of PRAGMA vdbe_addoptrace output. (check-in: 7c03ce49 user: drh tags: trunk)
2021-02-15
17:02
Fix an issue with the LIKE operator when it includes the "ESCAPE '_'" clause. Ticket [c0aeea67d58ae0fd]. (check-in: 27d41179 user: drh tags: trunk)
14:32
Add tests for sqlite3_column_count(). (check-in: 7cc65ae5 user: dan tags: trunk)
13:17
Ensure that the ALTER TABLE statements return 0 for sqlite3_column_count(). (check-in: 29c1932a user: drh tags: trunk)
11:14
Fix an error in the test case fix in [ecd71203]. (check-in: 5411bfa4 user: dan tags: trunk)
2021-02-13
18:14
Fix incorrect test name labels in the select1.test script. (check-in: 179c79ea user: drh tags: trunk)
16:39
Avoid manifesting a CTE (or other view) multiple times when it is possible to reuse the first manifestation. (check-in: 9692f510 user: drh tags: trunk)
14:26
Fix a problem in the unreleased union-all flattening enhancement (check-in: e4f8a79f user: dan tags: trunk)
2021-02-12
21:22
Fix a test case to account for the fact that different versions of OpenBSD behave differently when a program tries to read() from a file-descriptor open on a directory. (check-in: ecd71203 user: dan tags: trunk)
11:37
Ensure all RBU tests are run as part of release testing. (check-in: a18dc08b user: dan tags: trunk)
2021-02-10
20:00
Fix a longstanding problem causing an RBU vacuum to omit releasing some locks before finishing. (check-in: 66c07a07 user: dan tags: trunk)
19:49
Remove an assert() added by the previous commit that is sometimes false. (Closed-Leaf check-in: fb36ac4d user: dan tags: shm-lock-fix)
19:40
Fix a longstanding problem causing an RBU vacuum to omit releasing some locks before finishing. (check-in: cb5bdf82 user: dan tags: shm-lock-fix)
17:31
In RBU, avoid passing VFS xShmLock calls through to the underlying VFS in cases where xShmMap calls may not be. This fixes a bad interaction with ZipVFS. (check-in: bd1e9e0a user: dan tags: trunk)
2021-02-08
15:56
Correctly detect correlated subqueries when resolving names in RETURNING clauses. (check-in: b43cfa04 user: drh tags: trunk)
13:41
Improved name resolution for references to a table begin modified from within a subquery in the RETURNING clause. (check-in: 799d205b user: drh tags: trunk)
2021-02-07
23:28
Do not allow RETURNING in the DML statements of a trigger. (check-in: 7a8fe646 user: drh tags: trunk)
12:59
Fix harmless compiler warnings. (check-in: 5f8bf995 user: drh tags: trunk)
2021-02-06
14:56
Remove an ALWAYS() and NEVER() in the authorizer that become reachable as of [078dbff04a95a001]. Test case for coverage in TH3. (check-in: b469327e user: drh tags: trunk)
14:37
Fix the OSSFuzz-discovered shift problem from two days ago. This patch was omitted from [078dbff04a95a001] apparently because I made the edit to "sqlite3.c" rather than "resolve.c" where it belongs. (check-in: 864772ff user: drh tags: trunk)
2021-02-05
17:34
Remove unreachable code. Fix a shift UB problem introduced yesterday and discovered by OSSFuzz. (check-in: 078dbff0 user: drh tags: trunk)
2021-02-04
23:20
Change the RETURNING algorithm so that outputs accumulate in an ephemeral table until all modifications have been completed, and only then do results start being returned. This should help prevent problems with interleaved sqlite3_step() calls on two separate DML statements. It also seems to be closer to how PostgreSQL works, which might prevent compatibility problems. (check-in: c4615eb2 user: drh tags: trunk)
22:59
Remove dead code. Fix RETURNING for INSERT into a virtual table. (Closed-Leaf check-in: dbfa3869 user: drh tags: returning-manifested)
21:17
Fix an issue with RETURNING from UPSERT. (check-in: 757b74ba user: drh tags: returning-manifested)
20:52
Snapshot. New design appears to work on a simple test case. (check-in: 8a65fbee user: drh tags: returning-manifested)
17:29
Preliminary changes for a new implementation of RETURNING that captures all results in a buffer and plays them all back after the DML statement completes. This avoids problems with interleaved DML statements. This particular check-in is a non-functional work in progress. (check-in: 04b77d63 user: drh tags: returning-manifested)
13:52
Add NEVER() to a branch that check-in [5d54d9fd40638138] apparently made unreachable. (check-in: 5c8e6296 user: drh tags: trunk)
13:44
Performance optimization in sqlite3FinishCoding(). (check-in: 0f34f241 user: drh tags: trunk)
2021-02-03
19:38
Corrections to the 'filepath_normalize' test suite helper procedure. (check-in: 32f4d044 user: mistachkin tags: trunk)
18:32
Change the name of Vdbe.magic to Vdbe.iVdbeMagic to disambiguate with sqlite3.magic. (check-in: 6b29e549 user: drh tags: trunk)
14:20
Avoid doing any foreign-key constraint related processing for an UPDATE statement that does not modify any columns that are part of FK constraints, even if the table has a self-referencing FK. (check-in: 7f3b036e user: dan tags: trunk)
13:20
Fix a harmless compiler warning. (check-in: 1eb69c64 user: drh tags: trunk)
13:08
Add support for the RETURNING clause following PostgreSQL syntax. Also change the behavior of SQLITE_DBCONFIG_ENABLE_TRIGGER so that TEMP triggers are always allowed, regardless of the setting. (check-in: 416c898b user: drh tags: trunk)
12:35
Fix an assert() that might be off-by-one in the case of a prior errors in the parse. (check-in: 06b15b17 user: drh tags: trunk)
00:55
Modify the SQLITE_DBCONFIG_ENABLE_TRIGGER setting so that it only disables main-schema triggers and allows TEMP trigger to continue operating. This is safe, since only the application (not an attacker) can add TEMP triggers. It will also all us to disengage SQLITE_DBCONFIG_ENABLE_TRIGGER on Fossil databases since Fossil has no main-schema triggers but does use TEMP triggers. (Closed-Leaf check-in: a10c5a25 user: drh tags: returning)
00:05
Load enhancements from trunk into the returning branch. (check-in: b84c7f60 user: drh tags: returning)
2021-02-02
20:46
Do not allow aggregates in a RETURNING clause. Fix a memory leak that occurs when window functions are used in a RETURNING clause. (check-in: 2e9bd94b user: drh tags: returning)
20:41
Modify the sessions extension to use more efficient SQL when applying a changeset or patchset. (check-in: e4ccfac0 user: dan tags: trunk)
12:01
Report an error if RETURNING is used for DELETE or UPDATE of a virtual table. (check-in: bd5dee84 user: drh tags: returning)
00:16
Allow the RETURNING trigger to exist for virtual tables. (check-in: 2f244ab4 user: drh tags: returning)
2021-02-01
21:26
Add a few test cases for RETURNING together with UPDATE/DELETE LIMIT. (check-in: 7611c77d user: drh tags: returning)
12:39
Improved corrupt database detection in balance_nonroot(). (check-in: 5d54d9fd user: drh tags: trunk)
01:57
Modify RETURNING so that it does not return changes implemented by cascading foreign keys or by triggers. (check-in: 6e62470a user: drh tags: returning)
2021-01-31
16:45
Mark an unreachable branch as ALWAYS(). (check-in: cb8b797a user: drh tags: returning)
15:50
New opcode OP_ChngCntRow used to output the result of PRAGMA change_count. Only this new opcode, and not OP_ResultRow, checks for foreign key errors. Faster performance, and now also works with RETURNING. (check-in: 154fc2b1 user: drh tags: returning)
12:41
When setting the number of result columns in a RETURNING trigger, be sure to set that value in the top-level bytecode program, not in the immediate caller of the trigger. (check-in: 1f1ce7ce user: drh tags: returning)
2021-01-30
21:55
Improved comments on the new code. (check-in: a38f0c1d user: drh tags: returning)
16:16
Add an ALWAYS() to an unreachable branch. (check-in: 6bb6de42 user: drh tags: returning)
14:17
Change the OP_ResultRow opcode so that it does not cancel pending statement transactions. (check-in: fea91e3a user: drh tags: returning)
12:07
Fix a obsolete assert() in the bytecode engine. Improved OOM detection in sqlite3AddReturning(). (check-in: 138b10d5 user: drh tags: returning)
03:06
Fix handling of an OOM condition in sqlite3AddReturning(). (check-in: 52204cd7 user: drh tags: returning)
02:43
Fix a memory deallocation problem that comes up when doing a RETURNING query on a corrupt database. I think I fixed this before, but it got unfixed with stale editor content. (check-in: 02b1415e user: drh tags: returning)
02:34
Another attempt to get trigger selection correct for RETURNING triggers. (check-in: 1b8ed522 user: drh tags: returning)
02:22
When running the RETURNING trigger, if it is tagged as a DELETE trigger, do not use it as INSERT or UPDATE. (check-in: 3c7a6e04 user: drh tags: returning)
01:30
Test cases added. RETURNING works with UPSERT as does PG. (check-in: f5698f96 user: drh tags: returning)
2021-01-29
22:33
Better handling of errors in RETURNING due to corrupt database files. (check-in: 6aa2a058 user: drh tags: returning)
21:31
RETURNING works even if "PRAGMA count_changes=ON" is set. (check-in: a9122d97 user: drh tags: returning)
21:18
Allow "*" wildcards in the RETURNING clause. (check-in: b0e3ae30 user: drh tags: returning)
19:32
Working prototype. (check-in: b7ef4dc2 user: drh tags: returning)
16:20
Fix possible division-by-zero in the new log() SQL functions. Problemm discovered by OSSFuzz. (check-in: 1ffd321a user: drh tags: trunk)
14:22
Incorporate the sqlite3TriggerList() optimization from trunk. And move the pReturning field to the uninitialized area in the Parse object, to save memset() time. (check-in: 29fbaf0e user: drh tags: returning)
13:47
Performance optimization (and size reduction) in sqlite3TriggerList() for the common case where there are no TEMP triggers. (check-in: 0defaf73 user: drh tags: trunk)
2021-01-27
20:35
Merge recent enhancements from trunk. (check-in: 5fbcb208 user: drh tags: returning)
19:15
Fix an issue with IN operator optimization introduced by check-in [4a43430fd23f8835] and described by ticket [ee51301f316c09e9]. (check-in: 9dc7fc9f user: drh tags: trunk)
17:15
Ensure a cursor used by the SeekScan operator does not point to a valid row on the first iteration of the loop. Possible fix for [ee51301f316c09e]. (Closed-Leaf check-in: 390cf60a user: dan tags: fix-2d6e8400)
2021-01-25
21:24
Add an extra log message in the case of an SQLITE_CORRUPT_INDEX error. (check-in: 0571c241 user: drh tags: trunk)
2021-01-22
21:23
Enhance the query planner to enable it to use an index for IS NOT NULL constraints, even if STAT4 is not enabled. (check-in: 7b2a7c73 user: drh tags: trunk)
20:28
Merge fixes from trunk. Omit a conditional in sqlite3IsLikeFunction() that was made unreachable by this enhancement. (Closed-Leaf check-in: 0b42f9eb user: drh tags: isnotnull-opt)
2021-01-21
21:36
Do not allow VACUUM to resize the page_size to 512 if the reserve_byte value is 31 or greater. forum post e807885dc5. (check-in: d5ea75a0 user: drh tags: trunk)
20:42
Performance optimizations in exprAnalyze() (check-in: 6d60cf54 user: drh tags: isnotnull-opt)
17:54
Always enable the IS NOT NULL optimization, even if STAT4 is not enabled. (check-in: fc98218c user: drh tags: isnotnull-opt)
16:02
Fix a problem caused by using an SQL variable in an OVER clause within a trigger program. (check-in: 02264ab6 user: dan tags: trunk)
15:40
Fix a problem caused by using an SQL variable in an OVER clause within a trigger program. (Closed-Leaf check-in: 4f676466 user: dan tags: fix-over-trigger)
2021-01-20
23:01
Improvements to the auxiliary "main.mk" makefile so that it works better with multi-threaded builds. (check-in: d1873054 user: drh tags: trunk)
10:59
Add tests for sqlite3session_memory_used() interface. (check-in: 5596611f user: dan tags: trunk)
2021-01-18
19:28
Fix harmless compiler warnings seen with MSVC. (check-in: dc7938d2 user: mistachkin tags: trunk)
19:27
Update test helper procedure 'get_pwd' to handle the ComSpec environment variable being absent. (check-in: fe197955 user: mistachkin tags: trunk)
12:35
Enhance the query planner so that it is able to code EXISTS operators in the WHERE clause as if they were IN operators, when appropriate. (check-in: c1862abb user: drh tags: trunk)
00:11
More comments on the EXISTS-to-IN optimization logic. (Closed-Leaf check-in: 92cc2909 user: drh tags: exists-to-in)
2021-01-17
00:13
Minor simplification of the EXISTS-to-IN logic. (check-in: cac90a9f user: drh tags: exists-to-in)
2021-01-16
20:22
Improved handling of vector equalities in the EXISTS-to-IN translator. (check-in: ef49ee4a user: drh tags: exists-to-in)
18:55
Give the EXISTS-to-IN optimization the ability to handle some cases that involve vector comparisons, instead of throwing a mysterious error in those cases. (check-in: 87e78a19 user: drh tags: exists-to-in)
18:22
Add debugging output about the EXISTS-to-IN optimization when the ".wheretrace" flag has the 0x20 bit set. (check-in: 0dad5ce3 user: drh tags: exists-to-in)
12:15
Fix a hyperlink in the Lemon documentation. (check-in: 2ffb2ffa user: drh tags: trunk)
2021-01-15
17:51
Add OOM injection tests for new code on this branch. (check-in: 9a181dba user: dan tags: exists-to-in)
16:37
Update header comments for routines added by this branch. (check-in: 950030d6 user: dan tags: exists-to-in)
15:32
Ensure the EXISTS->IN transformation preserves the collation sequence of the comparison operation. (check-in: a373baae user: dan tags: exists-to-in)
15:21
Fix a potential NULL pointer dereference following OOM. (check-in: 8ce3cb90 user: drh tags: exists-to-in)
15:17
Add a new optimizer disabling bit to close off the exists-to-in optimization, for testing purposes. (check-in: a80c9a07 user: drh tags: exists-to-in)
14:25
Small performance improvement in the EXISTS-to-IN translator for the common case where the EXISTS operator is not found in the WHERE clause. (check-in: dcb7772d user: drh tags: exists-to-in)
14:15
Merge the latest trunk enhancements into the exists-to-in branch. (check-in: 13c4c908 user: drh tags: exists-to-in)
11:39
Add simple tests (and a fix) for the change on this branch. (check-in: 897f3f40 user: dan tags: exists-to-in)
2021-01-14
20:57
Improvements to the min/max optimization. Fix for a performance regression introduced at [b8ba2f17f938c035] reported by forum post 4050026ab8 (check-in: 249a71cc user: drh tags: trunk)
20:50
Allow the planner to convert an EXISTS(SELECT...) expression in a WHERE clause to the equivalent IN(...) expression in situations where this is possible and advantageous. (check-in: 9f90a882 user: dan tags: exists-to-in)
00:53
The early-out of the inner loop on the min/max optimization was overly aggressive for the cases where there is a join and outer loops contain IN operators. Fix this. Test case in TH3. (Closed-Leaf check-in: ccd3bae1 user: drh tags: minmax-opt-exp)
2021-01-13
21:05
Fix a harmless compiler warning. (check-in: 83ec01e3 user: drh tags: minmax-opt-exp)
19:28
Expand the number of optimization-disable bits from 16 to 32. Use one of the new bits to disable the min/max optimization, so that we can more easily verify that we get the same answer both with and within that optimization. (check-in: fd0c9a12 user: drh tags: minmax-opt-exp)
15:23
Further enhancements to the min/max optimization of check-in b8ba2f17f938c035 to fix the performance regression identified by forum post 4050026ab8. (check-in: 188772a1 user: drh tags: minmax-opt-exp)
12:59
cli: Omit surplus whitespace at the end of lines in .explain output. (check-in: 11e4eb09 user: drh tags: trunk)
11:44
In the .selecttrace output, show the ORDER BY clause added by the Min/Max optimization. (check-in: db0ecfe6 user: drh tags: trunk)
2021-01-12
20:16
Lexer and grammar rules for a RETURNING clause on DELETE/INSERT/UPDATE. Actually making this work, though, will involve a lot more code which will likely slow down processing for the common case where there is no RETURNING clause. Furthermore, RETURNING seems to be of limited usefulness and it is not standard SQL. So we abandon it here. These experimental changes are parked in a branch as an historical reference. If circumstances changes, we might take up the cause again some day. (check-in: abf8da81 user: drh tags: returning)
16:26
Merge the ParseCleanup enhancement to trunk. (check-in: 35824c1b user: drh tags: trunk)
15:30
Fix a potential use-after-free following an OOM in sqlite3ParserAddCleanup() and add a mechanism to detect situations where this might occur in the future. (Closed-Leaf check-in: 38ef8ab9 user: drh tags: parse-cleanup)
14:23
Rerun autoconf. (check-in: 8f3ab5da user: drh tags: trunk)
14:19
Fix for the top-level configure script so that it works with tcl 8.7. (check-in: 4810f814 user: dan tags: trunk)
2021-01-11
20:37
Add a linked list of ParseCleanup objects to the end of a Parse object and use that list as a place to put other sub-objects that need to be deallocated. Have a single such list for infrequently used sub-objects is more efficient than doing an a separate check for each kind of sub-object. Edit: Now possible to have use-after-free following an OOM. (check-in: affa2b7b user: drh tags: parse-cleanup)
2021-01-09
19:10
New CLI command: ".stats vmstep" enables the display of the virtual-machine step count only, after each command. Useful for optimization problems. (check-in: 49dfce46 user: drh tags: trunk)
18:24
More detailed compile-time testing before attempting to use atomic load intrinsics. See forum post fc0237a39b30ac0a. (check-in: 5204c2c4 user: drh tags: trunk)
2021-01-08
19:53
Fix an issue with sha3_query() when the first argument contains blank SQL statements. (check-in: 24baab9a user: drh tags: trunk)
2021-01-07
16:59
Update cksumvfs to check that the xCurrentTimeGetInt64 method of the underlying VFS is not NULL before invoking it. (check-in: c71f6cad user: dan tags: trunk)
16:29
Fix problems with some "crashsql" tests. (check-in: 0c8e2ede user: dan tags: trunk)
16:10
Fix harmless typos in comments per forum post 7849e58dd5 (check-in: d1e22e2f user: drh tags: trunk)
2021-01-04
18:28
Add extra test for handling of embedded nul characters in the fts4 unicode61 tokenizer. (check-in: c2c2c7e9 user: dan tags: trunk)
2021-01-02
23:56
In Lemon, factor the parser stack overflow detection logic out of the yy_reduce() subroutine and into the main parser routine, so that when overflow is detected, it can exit immediately. This saves a single conditional in the main loop of the parser. (check-in: 203c049c user: drh tags: trunk)
2021-01-01
22:06
Avoid allocating space to hold the prepared statements for CREATE statements when parsing the schema of an existing database, since those prepared statements are never used.. This helps to make startup faster, (check-in: d01e9f2d user: drh tags: trunk)
21:02
Faster and smaller test to ensure that the sqlite_schema.sql field is always a CREATE statement of some kind. (check-in: 76de2bb0 user: drh tags: trunk)
20:04
Change the unions of the Table.addColOffset field from characters to bytes. This makes the query that implements ALTER TABLE ADD COLUMN more complex and slightly slower, but also makes CREATE TABLE statement parsing faster by avoiding a call to sqlite3UtfCharLen(). Since, CREATE TABLE parsing is far more common than ALTER TABLE, this is a net win for performance. (check-in: 6f25f252 user: drh tags: trunk)
19:17
Use the column name hash to improve performance of column name collision detection while parsing CREATE TABLE statements. (check-in: d02820f0 user: drh tags: trunk)
18:32
Modify the makefile rule for "startup" so that it always builds with -Os and -DSQLITE_THREADSAFE=0 and no other options, for consistency of performance. (check-in: 5ac939e0 user: drh tags: trunk)
18:23
Size reduction and performance increase in sqlite3Prepare(). (check-in: 41f45c8e user: drh tags: trunk)
17:01
Small size reduction and performance improvement in sqlite3VdbeMakeReady() by linking the new prepared statement into the prepared statement list sooner rather than later. (check-in: 2996e800 user: drh tags: trunk)
16:43
Streamline processing of the authenticator callback for the common case when there is no callback. (check-in: d3196685 user: drh tags: trunk)
15:13
Add the "startup" test program designed to measure startup performance, and in particular schema parsing time. (check-in: 7b3b31ef user: drh tags: trunk)
01:44
Do not attempt to take a pointer to the ceil() and floor() functions as those routines are intrinsics on some versions of MSVC. (check-in: e5d7209e user: drh tags: trunk)
2020-12-30
13:20
New test case for the HAVING fix of check-in [f62f983b56623f0e]. (check-in: 45f46317 user: drh tags: trunk)
13:10
New test cases for cursor renumbering in the UNION ALL query flattener. (check-in: 270babf2 user: drh tags: trunk)
2020-12-29
15:06
Do not set the P3 parameter on OP_RowCell when copying an index btree, as P3 is not used in that case. (check-in: eef070a4 user: drh tags: trunk)
2020-12-28
21:42
Fix missing comma in ctime.c that would cause the ENABLE_MATH_FUNCTIONS output rw to merge with whatever row followed. Problem reported in forum post aacac97680. (check-in: 328bc4a0 user: drh tags: trunk)
2020-12-23
16:46
Add the sqlite3session_memory_used() API to the sessions module. For querying the amount of heap memory currently being used by a session object. (check-in: 823f75c2 user: dan tags: trunk)
2020-12-22
20:35
Fix SQLITE_OMIT_WINDOWFUNC builds by moving declaration of sqlite3ExpandSubquery out of "ifndef SQLITE_OMIT_WINDOWFUNC" block. (check-in: 9587fa8b user: dan tags: trunk)
19:57
Fix a couple spelling typos in comments. (check-in: 907ddf86 user: mistachkin tags: trunk)
16:23
Fix a problem handling sub-queries with both a correlated WHERE clause and a "HAVING 0" clause where the parent query is itself an aggregate. The problem was apparently introduced by check-in [6e6b3729e0549de0] (check-in: f62f983b user: dan tags: trunk)
14:54
Simplification to the aggregate-function analysis error detection logic at the end of sqlite3Select(). (check-in: 82884438 user: drh tags: trunk)
2020-12-21
19:50
Fix problems with joining UNION ALL sub-queries against other sub-queries that contain LEFT JOIN. (check-in: d554f710 user: dan tags: trunk)
18:39
Fix a problem when flattening joins between a UNION ALL sub-query and another sub-query that uses more than one window function. (check-in: ef9733fe user: dan tags: trunk)
14:51
Enhance documentation to show that "ro" is the correct way to say "readonly" in the mode= query parameter. (check-in: 788b9685 user: drh tags: trunk)
12:14
Add the --timer option to fuzzcheck. Get the --timeout option working in fuzzcheck when running dbsql tests. (check-in: 3b0c9b41 user: drh tags: trunk)
2020-12-20
14:51
Always declare the sqlite3WhereTrace variable, even for non-debug builds. (check-in: 88d93ee3 user: drh tags: trunk)
2020-12-19
15:39
Fix a broken assert() in fts5 that could be triggered by corrupt database records. (check-in: b79f59f9 user: dan tags: trunk)
13:58
Allow UNION ALL sub-queries to be flattened even if the parent query is a join. (check-in: df1d6482 user: drh tags: trunk)
2020-12-18
18:04
Fix for the previous fix in the case where a UNION ALL sub-query is joined against some other compound query. (Closed-Leaf check-in: 63c5cfb9 user: dan tags: union-all-flattener)
16:13
When flattening UNION ALL subqueries into a join query, ensure that separate cursor numbers are used for each segment of the newly flattened query. (check-in: c510377b user: dan tags: union-all-flattener)
2020-12-17
17:17
Fix a part of the header comment for flattenSubquery(). (check-in: dc0937ce user: dan tags: union-all-flattener)
16:48
Add test cases and minor fixes to this branch. (check-in: 5d6dc29d user: dan tags: union-all-flattener)
15:17
In the CLI, add the ".filectrl data_version" command. And put the various ".filectrl" subcommands in alphabetical order. (check-in: 34344521 user: drh tags: trunk)
11:24
Fix a problem with sqlite3_expanded_sql() that could occur with statements that use both numbered (e.g. "?1") and unnumbered (i.e. "?") parameters. (check-in: 2a6cd683 user: dan tags: trunk)
2020-12-16
21:09
Enhance the sqlite3BtreeTransferRow() routine so that it does more careful checks for corrupt database pages. (check-in: 85952e71 user: drh tags: trunk)
20:00
Allow sub-queries that use UNION ALL to be flattened, even if the parent query is a join. Still some problems on this branch. (check-in: 00e4bf74 user: dan tags: union-all-flattener)
14:20
Remove an unnecessary and incorrect #ifdef. Fix harmless compiler warnings. (check-in: 31cd1bbf user: drh tags: trunk)
13:17
Fix a typo in the sqlite3_free_filename() documentation. (check-in: 48301edc user: drh tags: trunk)
2020-12-15
19:27
Fix another integer overflow triggered by a corrupt database in recently modified vacuum code. (check-in: 4e2dd2a5 user: dan tags: trunk)
16:28
When the -statstep option is passed to the "rbu" executable, print out memory stats right before exiting, as well as every -statstep steps. (check-in: 94f81b51 user: dan tags: trunk)
13:55
Change an fts5 assert() that can be triggered by a corrupt database to an if() condition. (check-in: ea0a7f10 user: dan tags: trunk)
2020-12-14
15:39
Enhance UPSERT so that it allows multiple ON CONFLICT clauses and does not require a conflict target for DO UPDATE. (check-in: 6b01a24d user: drh tags: trunk)
15:25
Fix an integer overflow problem in new VACUUM code. (check-in: 59b4367f user: dan tags: trunk)
13:52
Minor changes for test coverage. (Closed-Leaf check-in: e5a8fa50 user: drh tags: generalized-upsert)
2020-12-12
00:43
More test cases. No new problems discovered. (check-in: f34dd67e user: drh tags: generalized-upsert)
00:28
New test cases with corresponding bug fixes. (check-in: f22c21a9 user: drh tags: generalized-upsert)
2020-12-11
19:36
Begin adding test cases. Fix one bug found so far. More are pending. (check-in: aadd67dd user: drh tags: generalized-upsert)
19:01
Fix an assert() broken by recent changes to vacuum. (check-in: dd058da8 user: dan tags: trunk)
17:11
Small performance tweaks. (check-in: 5321d60c user: drh tags: generalized-upsert)
16:49
Bug fixes so that legacy tests pass. New tests for new functionality have not yet been added. (check-in: aa76790e user: drh tags: generalized-upsert)
16:03
Add an "#ifndef SQLITE_AMALGAMATION" block around the typedef for u64 in shathree.c. (check-in: b411f29e user: dan tags: trunk)
14:34
Fix the configure script on the autoconf distribution so that the --disable-threadsafe option works. See FreeBSD bug 244459. (check-in: e64ff2cc user: drh tags: trunk)
14:22
Fix the expert extension so that it handles generated columns correctly. (check-in: c2ae7ba6 user: dan tags: trunk)
01:17
Logic is in place to handle multiple ON CONFLICT clauses, but it does not work. Any use of ON CONFLICT will likely lead to memory faults. This is an incremental check-in to save my place. (check-in: 15514231 user: drh tags: generalized-upsert)
2020-12-10
20:31
Use an iterator for the index loop in sqlite3GenerateConstraintChecks(). The idea is that this iterator can be enhanced to traverse the indexes in any order, as required by multi-index UPSERT. (check-in: 64a4a91e user: drh tags: generalized-upsert)
19:54
Remove a redundant branch added by [56a54258560]. (check-in: b4d6f6d7 user: dan tags: trunk)
19:51
Changes to avoid loading large records into memory within VACUUM. (check-in: 56a54258 user: dan tags: trunk)
19:20
Fix minor issues with new code on this branch. (Closed-Leaf check-in: f7fa76d0 user: dan tags: vacuum-lomem)
18:07
Merge trunk changes into this branch. (check-in: 7337eed6 user: dan tags: vacuum-lomem)
18:06
Better integrate the changes on this branch with OP_Insert and OP_IdxInsert. (check-in: 101cef14 user: dan tags: vacuum-lomem)
13:49
Add an optional function to the chsumvfs extension. When activated by the SQLITE_CKSUMVFS_INIT_FUNCNAME macro, this function will invoke the file-control that sets the number of reserved bytes to 8. This can be used to initialize a cksumvfs database file by programming languages that do not have access to the sqlite3_file_control() interface. (check-in: 01841fb4 user: drh tags: trunk)
12:49
The DO UPDATE code generator searches for the correct ON CONFLICT clause to use. (check-in: a47e35ee user: drh tags: generalized-upsert)
2020-12-09
23:35
Fix compilation issues with MSVC related to C99. (check-in: c0de6c1f user: mistachkin tags: trunk)
20:33
Transfer large index or WITHOUT ROWID records between b-trees when vacuuming without loading them into memory. (check-in: dfd4ca68 user: dan tags: vacuum-lomem)
20:30
For upsert, the constraint check code generator uses a copy of the index list for the target table, which can potentially be reordered. (check-in: 3194c00c user: drh tags: generalized-upsert)
16:49
Add tests for a 'delete' command on a contentless table where values that weren't actually inserted are NULL. (check-in: 818c647c user: dan tags: trunk)
16:32
Avoid loading large intkey rows when VACUUMing, even if the page-size is changing. (check-in: 0d2c3776 user: dan tags: vacuum-lomem)
13:11
Improved comments in sqliteInt.h. No changes to code. (check-in: 8ccb8d1d user: drh tags: generalized-upsert)
01:34
Initialize all terms in the ON CONFLICT clause stack. (check-in: 5e683fd1 user: drh tags: generalized-upsert)
2020-12-08
20:19
Experimental changes to vacuum to avoid loading large records entirely into memory. Currently only works in limited cases only - for rowid tables when the page-size does not change. (check-in: c90e063c user: dan tags: vacuum-lomem)
14:29
Enhance UPSERT parsing to allow multiple ON CONFLICT clauses. Only the very last clause may omit the conflict target, but the conflict target may now be omitted for the DO UPDATE resolution. (check-in: 2ca62f4c user: drh tags: generalized-upsert)
2020-12-07
23:14
Fix a bad assert() in math1Func(). (check-in: 4b286129 user: drh tags: trunk)
21:19
Fix to the --disable-math option to ./configure. (check-in: 99ff6418 user: drh tags: trunk)
21:13
Many more math functions. Semantics follows PG wherever possible. (check-in: 6b93627b user: drh tags: trunk)
17:15
Begin adding new SQL functions that depend on -lm: ceil(), ceiling(), floor(), ln(), log(), and log10() so far. More to follow. (check-in: 4db5f2f7 user: drh tags: trunk)
2020-12-04
17:05
Fix harmless compiler warnings associated with the recent FTS5 enhancements. (check-in: 1db7c751 user: drh tags: trunk)
16:58
Fix a bug in the ".eqp" command of the shell that was introduced by the recent sqlite3SelectTrace/SQLITE_TESTCTRL_TRACEFLAGS changes. (check-in: fd02dffc user: drh tags: trunk)
16:49
Ensure that fts5 function matchinfo() is registered before running tests that use it in fts5corrupt3.test. (check-in: 932e05e0 user: dan tags: trunk)
16:26
Fix a test script problem in walvfs.test. (check-in: 4c5076fb user: dan tags: trunk)
16:25
Fix an incorrect datatype no the sqlite3WhereTrace variable in test1.c. (check-in: 4e6dab30 user: drh tags: trunk)
16:09
Eliminate the sqlite3_unsupported_selecttrace global variable by creating a new test-control to control SELECT tracing. Note that SELECT tracing is only available on debug builds. (check-in: fb07c4e3 user: drh tags: trunk)
16:04
Further changes to the trace variables to try to eliminate (harmless) compiler warnings in all configurations. (Closed-Leaf check-in: 3a4c98b9 user: drh tags: traceflags-test-control)
01:17
Alternative implementation of ".selecttrace" and ".wheretrace" that uses a test-control rather than global variables. (check-in: d36d6f29 user: drh tags: traceflags-test-control)
2020-12-03
21:22
When merging prefix lists in fts5, use 16-way merges instead of 2-way merges. This faster. (check-in: 026a9350 user: dan tags: trunk)
19:25
Do not simulate OOM faults on the SQLITE_FCNTL_CKPT_START and SQLITE_FCNTL_CKPT_DONE file-controls, as those are write-only and the return value is always ignored. (check-in: 62a2d394 user: drh tags: trunk)
14:21
Enhance the generate_series() table-valued function to support negative step values. (check-in: 9b60fc48 user: drh tags: trunk)
2020-12-02
20:07
Prevent potential segfault in the sqlite-expert idxPopulateStat1 context cleanup code. (check-in: c24f1344 user: mistachkin tags: trunk)
19:08
Allow a search for an N character prefix in fts5 to use a prefix index of size N+1, if no prefix index of size N exists. (check-in: 78a7801d user: dan tags: trunk)
18:27
Fix the ".open" command in the CLI so that it accepts command-line options both before and after the filename. (check-in: d330bf0c user: drh tags: trunk)
16:23
Improve performance for fts5 column filters that filter for more than one column. e.g. "{col1 col2 col3}:phrase". (check-in: d8de2f23 user: dan tags: trunk)
02:58
Parameterize the hash function in mkkeywordhash.c. This was an attempt to find a better hash function, which turned out to not be successful. (check-in: 2195d731 user: drh tags: trunk)
00:22
Increase the version number to 3.35.0 to begin the next development cycle. (check-in: edbabaa3 user: drh tags: trunk)
00:20
Slightly faster tokenization of non-keyword identifiers. (check-in: 55fa22bd user: drh tags: trunk)
2020-12-01
23:18
Add the --lookaside SIZE COUNT command-line option to the dbfuzz2 testing tool. (check-in: 2466960c user: drh tags: trunk)
16:14
Version 3.34.0 (check-in: a26b6597 user: drh tags: trunk, release, version-3.34.0, major-release)