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200 descendants and 200 ancestors of 52559ad58ce412af
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2018-09-06
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| 16:01 | Ensure that the tbl_name column in the sqlite_temp_master table is updated correctly as part of a RENAME TABLE operation. (check-in: ffecfca511 user: dan tags: alter-table-rename-column) | |
| 14:01 | Add the randomshape.tcl test-case generator script to the util subdirectory of the rtree extension. (check-in: 8f48991dcb user: drh tags: trunk) | |
| 11:14 | Fix excess memory usage in the JSON parser of GEOPOLY. (check-in: 9057e27e12 user: drh tags: trunk) | |
| 02:40 | Fix a problem with geopoly trying to update both the _shape and an auxiliary column in the same UPDATE statement. (check-in: 14c955152d user: drh tags: trunk) | |
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2018-09-05
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| 17:52 | Merge latest trunk changes into this branch. (check-in: 6f4f707f9c user: dan tags: alter-table-rename-column) | |
| 17:45 | Fix some test script errors. And an incorrect assert() in fts5. (check-in: f804336f08 user: dan tags: alter-table-rename-column) | |
| 16:16 | Remove an old testcase() macro that is no longer valid. (check-in: e628713338 user: drh tags: trunk) | |
| 14:36 | Avoid comparing pointer values after the object that they point to has been deleted. (check-in: 2ec7e50cbc user: dan tags: alter-table-rename-column) | |
| 08:28 | Fix minor code issues in alter.c. (check-in: 18ba35b86f user: dan tags: alter-table-rename-column) | |
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2018-09-04
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| 18:23 | Merge latest trunk changes into this branch. (check-in: ef9e088290 user: dan tags: alter-table-rename-column) | |
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2018-09-03
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| 20:05 | Improve the error messages emitted by RENAME TABLE. (check-in: 6805b5900d user: dan tags: alter-table-rename-column) | |
| 17:11 | Ensure that FTS5 queries of the form "WHERE rowid BETWEEN ? AND ? AND tbl MATCH ? ORDER BY rank" do rowid filtering before sorting. (check-in: f1138a38bd user: dan tags: trunk) | |
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2018-09-01
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| 20:38 | Add another test case to altertab.test. (check-in: 828e8849fa user: dan tags: alter-table-rename-column) | |
| 20:23 | Fix a problem with renaming a column in a table that has a temp trigger that references another attached database. (check-in: 336b8a0923 user: dan tags: alter-table-rename-column) | |
| 20:02 | Fixes for harmless compiler warnings. (check-in: 41b8f38b97 user: drh tags: alter-table-rename-column) | |
| 16:55 | Fix some harmless compiler warnings and improve defenses against OOM errors. (check-in: 2e2cf992f5 user: drh tags: alter-table-rename-column) | |
| 16:13 | Merge alter-table-rename-table back into this branch. (check-in: ad704a7c86 user: dan tags: alter-table-rename-column) | |
| 16:05 | Have "ALTER TABLE ADD COLUMN" reload the entire db schema, as "RENAME COLUMN" and "RENAME TABLE" do. (Closed-Leaf check-in: 8d89ddc1a6 user: dan tags: alter-table-rename-table) | |
| 15:55 | Merge fixes from the alter-table-rename-column branch that occurred after this branch separated from that one. (check-in: 22e785aa2b user: drh tags: alter-table-rename-table) | |
| 15:49 | Merge fixes and enhancements from trunk. (check-in: 589186c083 user: drh tags: alter-table-rename-table) | |
| 06:13 | Update test script snapshot_fault.test to account for the new sqlite3_snapshot_open() error code. (check-in: c1aca7673a user: dan tags: trunk) | |
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2018-08-31
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| 23:22 | New hyperlink on the README.md file. (check-in: c663961e34 user: drh tags: trunk) | |
| 19:00 | If a call to sqlite3_snapshot_open() fails because the requested snapshot no longer exists, return SQLITE_ERROR_SNAPSHOT instead of SQLITE_BUSY_SNAPSHOT. (check-in: e07923128b user: dan tags: trunk) | |
| 18:23 | Ensure b-tree mutexes are always held when sqlite3FindTable() is called. Do not invoke the authorizer callback when parsing schema items as part of ALTER TABLE commands. Fix test script issues. (check-in: eac2aa7dce user: dan tags: alter-table-rename-table) | |
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2018-08-30
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| 20:28 | Try to identify the places in WAL code where thread-safety depends on the underlying architecture supporting atomic load and store of aligned 32-bit values. (check-in: 47d44be4a6 user: drh tags: trunk) | |
| 20:03 | Test the schema after renaming a table. Ensure that temp database triggers and views are updated when renaming a column. (check-in: f3c27d916d user: dan tags: alter-table-rename-table) | |
| 18:53 | Give the debugging routine print_pager_stats() external linkage in order to suppress harmless compiler and TSAN warnings. (check-in: ff4dc08298 user: drh tags: trunk) | |
| 16:26 | Fix an ALTER TABLE problem with processing temp schema views and triggers. (check-in: 72cfb1be29 user: dan tags: alter-table-rename-table) | |
| 01:52 | Improved JSON parser caching. (check-in: 58078c0d26 user: drh tags: trunk) | |
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2018-08-29
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| 21:01 | Additional test cases for geopoly. (check-in: 19b5eb45e0 user: drh tags: trunk) | |
| 21:00 | Extend RENAME TABLE to edit triggers and views. Still buggy. (check-in: 01308bae3a user: dan tags: alter-table-rename-table) | |
| 20:52 | Fixes to the UPDATE logic in Geopoly. (check-in: 7c3cee0a2a user: drh tags: trunk) | |
| 20:24 | Also free up the MEM_RowSet bit in the Mem.flags field and have RowSet objects be destroyed using Mem.xDel. This change results in faster code. (check-in: f48e9feb3f user: drh tags: trunk) | |
| 18:47 | Free up the MEM_Frame bit in Mem.flags object. Store VdbeFrame objects as MEM_Blob with a special Mem.xDel pointer instead. (check-in: 62db5fd476 user: drh tags: trunk) | |
| 15:50 | Add the geopoly_group_bbox() aggregate function to the Geopoly module. (check-in: 2d4debccbc user: drh tags: trunk) | |
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2018-08-28
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| 21:12 | Disable the server1.test script on old PPC Macs due to problems in the pthreads implementation on those archaic machines. (check-in: 43efdd8c7e user: drh tags: trunk) | |
| 19:23 | Stricter enforcement of the JSON and GeoJSON standards in the Geopoly extension. (check-in: c0bf3ff3af user: drh tags: trunk) | |
| 15:51 | Fix new issues in the geopoly module discovered by TH3. (check-in: 22fff9afc2 user: drh tags: trunk) | |
| 11:23 | Fix a problem causing spurious SQLITE_CORRUPT errors when using the snapshot API to read from old database snapshots. (check-in: 535155be58 user: dan tags: trunk) | |
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2018-08-27
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| 17:13 | Add support for the Geopoly extension to the R-Tree extension. This also involves adding the SQLITE_INDEX_CONSTRAINT_FUNCTION capability to the xFindFunction method of the sqlite3_module object, and to the sqlite3_index_info.aConstraint.op field in the xBestIndex implementation of virtual tables. (check-in: 666133e32c user: drh tags: trunk) | |
| 17:05 | Minor changes to the visual01.txt test script. (Closed-Leaf check-in: 4bc28eed32 user: drh tags: rtree-geopoly) | |
| 15:55 | Split the three-argument version of geopoly_within() off into a separate function named geopoly_contains_point(). (check-in: 5a0e154103 user: drh tags: rtree-geopoly) | |
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2018-08-25
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| 23:03 | Enhance the geopoly virtual table so that it does a better job of optimizing geopoly_within() queries. (check-in: 1f71738534 user: drh tags: rtree-geopoly) | |
| 19:51 | Provide the two-argument geopoly_within(P1,P2) routine that determines if polygon P2 is contained within polygon P1. Make this function available to the query planner for optimized rtree lookups. Update the visual01.txt script to verify that the new functionality actually works. (check-in: 6eb5d09b7f user: drh tags: rtree-geopoly) | |
| 18:57 | Fix a harmless compiler warning. (check-in: d49be9838d user: drh tags: rtree-geopoly) | |
| 16:22 | Fix a minor issue in the altercol.test script so that it runs on Windows. (check-in: 62089c6daf user: drh tags: alter-table-rename-column) | |
| 16:14 | Invoke the authorizer for ALTER TABLE RENAME COLUMN. (check-in: fc293bcb34 user: drh tags: alter-table-rename-column) | |
| 03:29 | Remove an unnecessary IN_RENAME_COLUMN macro from resolve.c. (check-in: 5858c0bde7 user: drh tags: alter-table-rename-column) | |
| 02:04 | The implementation of sqlite_rename_column() must be holding the schema mutexes. (check-in: f0eed21d4e user: drh tags: alter-table-rename-column) | |
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2018-08-24
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| 20:20 | Fix a problem by renaming a column when the schema contains an trigger program featuring an UPSERT that uses an "excluded.*" reference to a different table. (check-in: 83d5f5abce user: dan tags: alter-table-rename-column) | |
| 20:10 | Fix a problem with renaming a column that occurs as an "excluded.colname" construction in an UPSERT that is part of a trigger program. (check-in: bb2f723496 user: dan tags: alter-table-rename-column) | |
| 19:04 | Set SQLITE_PTRSIZE to 4 when compiling with xlc on 32-bit AIX. (check-in: d158e5b12e user: mistachkin tags: trunk) | |
| 17:55 | After modifying and reparsing the schema as part of an ALTER TABLE RENAME COLUMN, check that no new schema errors have been introduced (e.g. ambiguous column names in views) before committing the operation. (check-in: a0e06d2c5e user: dan tags: alter-table-rename-column) | |
| 16:04 | Avoid incorrectly replacing tokens that refer to a column being renamed via an alias. For example, do not overwrite "xyz" when "a" is renamed in "CREATE VIEW v1 AS SELECT a AS xyz FROM tbl WHERE xyz=1" (check-in: ad072a835f user: dan tags: alter-table-rename-column) | |
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2018-08-23
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| 20:09 | Add the "atrc" test program to the Makefiles. Fix a typo in the instructions in the header comment of the atrc program. (check-in: 2130a407dd user: drh tags: alter-table-rename-column) | |
| 19:32 | Fix harmless compiler warnings in the ALTER TABLE logic. Rephrase an error message to use active voice. (check-in: a7dae59a7e user: drh tags: alter-table-rename-column) | |
| 18:56 | Automatically detect when compiling for AArch64 on windows and set SQLITE_BYTEORDER to little-endian to avoid compile-time testing. (check-in: ef6729be85 user: drh tags: trunk) | |
| 18:50 | The Expr.iColumn field must also be initialized in tokenExpr(). (check-in: 772985f18b user: drh tags: alter-table-rename-column) | |
| 18:22 | Make sure the Expr.iTable field is initialized by tokenExpr(). (check-in: 02a05a3b3c user: drh tags: alter-table-rename-column) | |
| 14:54 | Merge enhancements from trunk. (check-in: c446c88411 user: drh tags: rtree-geopoly) | |
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2018-08-21
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| 17:03 | Fix a test case that was failing for SQLITE_ENABLE_STAT4 builds. (check-in: 1e29fd430d user: dan tags: trunk) | |
| 16:32 | Rename internal function sqlite3RenameToken() to sqlite3RenameTokenMap() and sqlite3MoveRenameToken() to sqlite3RenameTokenRemap(). (check-in: b9ae9a0a18 user: dan tags: alter-table-rename-column) | |
| 15:06 | Rationalize some duplicated code in alter.c. Also improve error messages for ALTER TABLE RENAME COLUMN in some cases. (check-in: 5d2163c734 user: dan tags: alter-table-rename-column) | |
| 12:46 | Further attempts to reduce the number of false-positives genenerated by static analysis tools. (check-in: 38f9ce6503 user: drh tags: trunk) | |
| 12:16 | Fix various harmless warnings generated by static analysis tools. (check-in: a04a0ea9e3 user: drh tags: trunk) | |
| 08:29 | Minor changes to function tokenExpr() in order to claw back cycles lost to the rename-column change. (check-in: 479976955e user: dan tags: alter-table-rename-column) | |
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2018-08-20
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| 20:01 | Add further tests for RENAME COLUMN. (check-in: 82c4c10a96 user: dan tags: alter-table-rename-column) | |
| 16:16 | Ensure that it is not possible to rename columns of system tables, views or virtual tables. (check-in: 786b5991dc user: dan tags: alter-table-rename-column) | |
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2018-08-18
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| 18:27 | Additional fixes for harmless compiler warnings that are specific to this branch. (check-in: 9d8e73bf71 user: drh tags: alter-table-rename-column) | |
| 18:14 | Merge trunk fixes. (check-in: ccad277927 user: drh tags: alter-table-rename-column) | |
| 18:01 | Have ALTER TABLE RENAME COLUMN also edit trigger and view definitions. (check-in: 7908e8a4a3 user: dan tags: alter-table-rename-column) | |
| 17:35 | Improvements to error handling in ALTER TABLE RENAME COLUMN. (Closed-Leaf check-in: 7fa1faeaff user: dan tags: edit-trigger-wrapper) | |
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2018-08-17
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| 21:14 | Fix harmless compiler warnings only seen with STAT4 enabled. (check-in: 6f5e84bafc user: mistachkin tags: trunk) | |
| 18:08 | Allow an ALTER TABLE RENAME COLUMN to proceed even if the schema contains a virtual table for which the module is unavailable. (check-in: 7b72b2360a user: dan tags: edit-trigger-wrapper) | |
| 17:18 | Ensure that CREATE VIEW, TRIGGER or INDEX statements can be edited by ALTER TABLE RENAME COLUMN even if they use collation-sequences or user-defined-functions that are not available. (check-in: 540014efd6 user: dan tags: edit-trigger-wrapper) | |
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2018-08-16
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| 19:49 | Further progress on updating trigger programs as part of ALTER TABLE RENAME COLUMN. (check-in: 3f47222b6e user: dan tags: edit-trigger-wrapper) | |
| 16:24 | Fix a harmless unused-variable compiler warning that only came up in certain compile-time configurations. (check-in: 456842924b user: drh tags: trunk) | |
| 15:29 | Fix EXPLAIN QUERY PLAN so that it describes IN operators implemented using a ROWID lookup. (check-in: 60045fbf52 user: drh tags: trunk) | |
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2018-08-15
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| 20:28 | Have ALTER TABLE RENAME COLUMN edit trigger programs. Only partly working. (check-in: e272dc2b1c user: dan tags: edit-trigger-wrapper) | |
| 14:03 | Allow sqlite3_snapshot_open() to be called to change the snapshot after a read transaction is already open on database. (check-in: 4139916995 user: dan tags: trunk) | |
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2018-08-14
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| 21:05 | Fix a problem when renaming an IPK column that is also part of a child key. (check-in: 6e6a2bfdbb user: dan tags: edit-trigger-wrapper) | |
| 21:03 | Fix a problem when renaming an IPK column that is also part of a child key. (check-in: ad15486022 user: dan tags: alter-table-rename-column) | |
| 20:40 | Merge latest trunk and ALTER TABLE error message improvements into this branch. (check-in: 7a45802daf user: dan tags: edit-trigger-wrapper) | |
| 20:38 | Do not allow ALTER TABLE RENAME COLUMN on a virtual table. (check-in: f6d6b47271 user: drh tags: alter-table-rename-column) | |
| 20:18 | Have ALTER TABLE RENAME edit column references in CREATE VIEW statements. (check-in: db829dc1a2 user: dan tags: edit-trigger-wrapper) | |
| 19:27 | Improved error messages when an ALTER TABLE RENAME COLUMN fails due to a duplicate column name. (check-in: 37d11b8e82 user: drh tags: alter-table-rename-column) | |
| 18:12 | Merge fixes and enhancements from trunk. (check-in: dff0314b7e user: drh tags: alter-table-rename-column) | |
| 16:18 | Fix ALTER TABLE RENAME COLUMN in cases where the column being renamed is an IPK declared with a separate PRIMARY KEY clause - "CREATE TABLE x(y INTEGER, PRIMARY KEY(y))". (check-in: 32ca8418df user: dan tags: alter-table-rename-column) | |
| 15:12 | Fix UPSERT so that it checks the target-constraint first and fires the DO UPDATE if that constraint is violated regardless of whether or not other constraints are in violation. This aligns SQLite behavior with what PostgreSQL does. Fix for ticket [908f001483982c43cdb476dfb590a1a]. (check-in: 529fb55e3d user: drh tags: trunk) | |
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2018-08-13
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| 22:50 | Stop requiring the global VFS mutex to access the unixInodeInfo.pUnused field. The unixInodeInfo mutex is sufficient. (check-in: e3ea43dabf user: drh tags: trunk) | |
| 20:46 | Take extra precautions to ensure access to unixInodeInfo.pUnused is protected by all necessary mutexes. (check-in: 8b1e0010b9 user: drh tags: trunk) | |
| 17:14 | Edit the WHEN and UPDATE OF clauses of trigger programs as part of ALTER TABLE RENAME COLUMN. (check-in: 5fdb6b0aaf user: dan tags: edit-trigger-wrapper) | |
| 17:02 | Make the sqlite_rename_column() SQL function resistant to problems caused by OOMs and/or malformed parameters submitted by hostile application code. Also add additional comments to the RENAME COLUMN logic. (check-in: 87743ddef1 user: drh tags: alter-table-rename-column) | |
| 15:09 | Fix legacy comments on Token. Begin commenting the new ALTER TABLE RENAME COLUMN code. Fix a memory leak in the sqlite_rename_column() SQL function. (check-in: 32edc89203 user: drh tags: alter-table-rename-column) | |
| 13:43 | Fix issues with ALTER TABLE RENAME COLUMN associated with OOM errors. (check-in: 0b28dd5c2e user: drh tags: alter-table-rename-column) | |
| 12:58 | Fix a heap-corruption causing race condition in os_unix.c that could occur when one thread wal opening a database file while another is unlocking the same file. Edit: Let's go in a slightly different direction with this fix. (Closed-Leaf check-in: 2447e0fd98 user: dan tags: unix-lock-fix-attempt) | |
| 11:32 | Fix an incorrect comment on the unix-nolock VFS object. No functional code changes. (check-in: 90f7c193b4 user: drh tags: trunk) | |
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2018-08-11
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| 20:46 | Add the "atrc" test program. "Atrc" is short for "ALTER TABLE RENAME COLUMN". See the header comment on the program itself for further information. (check-in: ed64a55a22 user: drh tags: alter-table-rename-column) | |
| 20:38 | If the new column name in an ALTER TABLE RENAME COLUMN statement is quoted, then also use quotes for the column name in the edited SQL statements. (check-in: ca5184a25f user: dan tags: alter-table-rename-column) | |
| 18:34 | Avoid an assert() sometimes triggered by ALTER TABLE RENAME COLUMN in non-debug builds. (check-in: 520c1c75da user: dan tags: alter-table-rename-column) | |
| 17:49 | Fix a bug causing ALTER TABLE RENAME COLUMN to fail when renaming an IPK column that is used in a CHECK constraint. (check-in: 6595c8811f user: dan tags: alter-table-rename-column) | |
| 17:34 | Fix a bug causing all ALTER TABLE RENAME COLUMN commands to fail if ANALYZE had been run on the database. Also prevent the user from renaming the columns of system tables. (check-in: ca644a2877 user: dan tags: alter-table-rename-column) | |
| 13:40 | Reload the entire schema after renaming a column in order to ensure that the schema for any tables for which parent key definitions were changed are reloaded. (check-in: f4497b0136 user: dan tags: alter-table-rename-column) | |
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2018-08-10
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| 20:19 | Ensure the schema cookie is changed when a column is renamed. (check-in: 2dec9ea4ab user: dan tags: alter-table-rename-column) | |
| 19:33 | Fix harmless compiler warnings. (check-in: 9564d7008c user: drh tags: alter-table-rename-column) | |
| 19:19 | When a column is renamed, update any references to it in REFERENCES clauses that belong to other tables. (check-in: 191079bd4f user: dan tags: alter-table-rename-column) | |
| 15:27 | Merge latest trunk changes with this branch. (check-in: c355a83707 user: dan tags: alter-table-rename-column) | |
| 14:23 | Fix a problem with renaming columns on tables with REFERENCES clauses that specify a large number of columns. (check-in: d48f7bbdf4 user: dan tags: alter-table-rename-column) | |
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2018-08-09
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| 21:45 | Fix the isLikeOrGlob() routine in the WHERE clause processing logic so that it avoids signed/unsigned character comparisons, as that can lead to an incorrect answer if the ESCAPE clause is an invalid UTF8 string. Problem found by OSSFuzz. (check-in: 4195a3f8b5 user: drh tags: trunk) | |
| 20:47 | Experimental implementation of ALTER TABLE ... RENAME COLUMN. Still buggy. (check-in: fa0fc01eb4 user: dan tags: alter-table-rename-column) | |
| 18:36 | When a column must be a constant due to WHERE clause and the value of that column is being coded as a constant, make sure the affinity is correct. (check-in: 7404ea8316 user: drh tags: trunk) | |
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2018-08-08
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| 20:46 | Minor style improvements. (check-in: 60bbca2b9a user: mistachkin tags: trunk) | |
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2018-08-06
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| 17:12 | Allow sqlite3_snapshot_open() to be called to change the snapshot after a read transaction is already open on database. (Closed-Leaf check-in: 051ac01520 user: dan tags: exp-snapshot-open) | |
| 02:08 | Enhance the edit() function so that it converts text from \r\n back into \n only if the original unedited copy contained no \r\n values. (check-in: 20c995d3f0 user: drh tags: trunk) | |
| 01:39 | Add the --info option to the fuzzcheck test utility. (check-in: 1caaaaa70f user: drh tags: trunk) | |
| 01:21 | Fix an overzealous assert() statement discovered by OSSFuzz. (check-in: d9c9fe9f5a user: drh tags: trunk) | |
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2018-08-04
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| 20:30 | Remove the column-cache from the code generator. The column-cache has been a persistent source of bugs for years and with recent improvements in the performance of OP_Column, it no longer provides a benefit. After the column cache is removed, the binary is almost 2KB smaller and the speed-check.sh performance test is over 3 million cycles faster. (check-in: cdff3af7be user: drh tags: trunk) | |
| 20:12 | Remove a testcase() that is no longer reachable without the column cache. Provide an assert() to help prove that the testcase is no longer reachable. (Closed-Leaf check-in: a500893b6f user: drh tags: omit-column-cache) | |
| 17:15 | Fix comments that were made obsolete by the removal of the column cache. (check-in: 2041231d56 user: drh tags: omit-column-cache) | |
| 16:54 | Remove more column-cache residue: The OP_SetColTab and OP_VerifyColTab opcodes and the associated SQLITE_DEBUG_COLUMNCACHE logic. (check-in: 80236e81ce user: drh tags: omit-column-cache) | |
| 15:53 | Further logic simplifications that flow out of the omission of the column cache. (check-in: 7d9072b027 user: drh tags: omit-column-cache) | |
| 15:28 | Add test cases for the constant expression fix of the previous check-in. (check-in: 95db5bd9fe user: drh tags: trunk) | |
| 15:16 | Ensure that all expressions that are to be evaluated once at the start of a prepared statement (the Parse.pConstExpr expressions) pass the sqlite3ExprIsConstantNotJoin() test. It is not sufficient to pass just the sqlite3ExprIsConstant() test as that would allow through column references that are bound to constants by the WHERE clause in the constant propagation optimization. This fixes a problem discovered by OSSFuzz. (check-in: 8bc7f84c39 user: drh tags: trunk) | |
| 14:30 | Remove additional traces of the column cache. (check-in: db6052e972 user: drh tags: omit-column-cache) | |
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2018-08-03
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| 23:04 | Completely remove the column cache logic, which has been a persistent source of bugs for many years. Due to recent enhancements to the performance of the OP_Column opcode, removing the column cache actually makes speed-check.sh run faster. Removing the column cache also saves about 1,800 bytes of code space. (check-in: 3f5f60cd75 user: drh tags: omit-column-cache) | |
| 20:19 | Fix the handling of sub-queries with LIMIT clauses by the optimization activated by compile-time symbol SQLITE_COUNTOFVIEW_OPTIMIZATION. (check-in: 21235d9a41 user: dan tags: trunk) | |
| 15:58 | Fix the OP_SeekRowid opcode so that it has no type-change side-effects on the key register in P3. This fixes an obcure problem that arises when doing equi-joins between a table with a TEXT column against another table with an INTEGER PRIMARY KEY. The original problem was discovered when OSSFuzz created such a query and hit an assert() in OP_VerifyTabCol that was specifically designed to catch these kinds of errors at run-time. Test cases for this fix are in TH3. (check-in: fa94b49e02 user: drh tags: trunk) | |
| 13:56 | Improve "PRAGMA vdbe_trace=ON" to always show the key values for the OP_IdxGT and related opcodes. (check-in: 0f881955ed user: drh tags: trunk) | |
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2018-07-29
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| 18:56 | In the command-line shell, always exit if realloc() fails. (check-in: e390023c8e user: drh tags: trunk) | |
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2018-07-28
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| 21:01 | Add a small cost penalty to sorting to bias the query planner in favor of plans that do not require a final sorting pass. (check-in: 85b9beb460 user: drh tags: trunk) | |
| 16:24 | Do not allow a column reference that is converted into a constant by the WHERE-clause constant propagation optimization to be moved to the init-time constant expression list, as the table reference will not work there. This fixes a problem found by OSSFuzz. (check-in: d30b2a9473 user: drh tags: trunk) | |
| 14:56 | Fix an assert() statement that was made obsolete by the constant propagation enhancement. Problem discovered by OSSFuzz. (check-in: e4b4737e34 user: drh tags: trunk) | |
| 14:34 | Improved debugging output when the ".selecttrace" option is used in the shell. (check-in: fcb88dd6b0 user: drh tags: trunk) | |
| 13:37 | An early attempt at refactoring Expr (Closed-Leaf check-in: fc90a53de7 user: drh tags: expr-simplify-branch1) | |
| 01:30 | Add assert() statements to sqlite3ExprDelete() that prove various symmetry properties of the Expr object that might be exploited to make the Expr object smaller and faster. (check-in: 81f25d5c84 user: drh tags: expr-simplify) | |
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2018-07-27
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| 23:33 | Improvements to the parser to increase coverage. Fix the parser so that at least one expresssion is required after PARTITION BY and within the list of expressions on VALUES(). (check-in: 02204f8b24 user: drh tags: trunk) | |
| 22:55 | When doing a DROP VIEW do not try to delete entries from the sqlite_stat1 table as there are none. (check-in: 7efdba2bbc user: drh tags: trunk) | |
| 22:14 | Minor grammar changes that help the parser run faster by reducing the number of NUL rule reductions. (check-in: cfd1b00592 user: drh tags: trunk) | |
| 20:45 | Enhance Makefile for MSVC to support building the shell tool without using the amalgamation. (check-in: 3d815d83a6 user: mistachkin tags: trunk) | |
| 20:37 | The WHERE-clause constant propagation optimization attempts to use transitive laws to replace column values with constants in the WHERE clause in order to help to query planner make more aggressive optimizations. (check-in: f4229707ac user: drh tags: trunk) | |
| 20:01 | Reduce the performance cost of the constant propagation optimization to less than 200,000 cycles. (Closed-Leaf check-in: 865249de68 user: drh tags: propagate-const-opt) | |
| 18:19 | Performance improvement to sqlite3ExprCollSeq(). With this change, the performance of speed-check.sh is within 400,000 cycles of trunk. (check-in: a5f86f49b7 user: drh tags: propagate-const-opt) | |
| 18:12 | Faster implementation of sqlite3IsBinary(). (check-in: be05d0db09 user: drh tags: propagate-const-opt) | |
| 17:51 | Only run the constant propagation optimization on joins since that is the only scenario where it is useful. This saves prepare time for the common case of a simple query. (check-in: 598d608359 user: drh tags: propagate-const-opt) | |
| 16:57 | Constant propagation is now restricted to just the WHERE clause. The mechanism is changed to take affinity and collation into account. This seems to give correct answers. But the search for constant propagation costs 4 million cycles in the speed test. (check-in: 82c67efb72 user: drh tags: propagate-const-opt) | |
|
2018-07-26
| ||
| 23:54 | Add a test case demonstrating the collation problem with constant propagation. (check-in: 50add839fd user: drh tags: propagate-const-opt) | |
| 23:47 | Generalize the constant propagation optimization so that it applies on every WHERE close, not just those that contain a subquery. This then demonstrates that the current implementation is inadequate since it does not take into account collating sequences. (check-in: 57eb2abd5b user: drh tags: propagate-const-opt) | |
| 21:48 | In the unix VFS, give every unixInodeInfo object its own mutex, rather than using the global VFS mutex, to improve concurrency in cases where there are many threads operating on separate database files. (check-in: 22f47cf430 user: drh tags: trunk) | |
| 21:16 | Initial implementation of the WHERE-clause constant propagation optimization. (check-in: 2fb82ad8eb user: drh tags: propagate-const-opt) | |
|
2018-07-25
| ||
| 15:25 | Fix a buffer overread in fts5. (check-in: 0e3de8abbb user: dan tags: trunk) | |
| 15:12 | Keep generated opcode values grouped together when required, even when they do not correspond to a token. (check-in: 6ee2950b27 user: mistachkin tags: trunk) | |
| 07:29 | Fix a typo in the documentation for sqlite3_snapshot_get(). (check-in: cd9713c9a8 user: dan tags: trunk) | |
|
2018-07-24
| ||
| 22:02 | Do not abort running queries due to a CREATE INDEX statement. Allow them to run to completion before being reprepared. Fix for ticket [c694113e50321afdf9]. (check-in: 2bd593332d user: drh tags: trunk) | |
| 13:57 | Add missing SQLITE_OMIT_WINDOWFUNC check to the json1 extension. (check-in: fe19f8239d user: mistachkin tags: trunk) | |
|
2018-07-23
| ||
| 22:55 | Return an SQLITE_NOMEM error if the locking mutex fails to allocate. (Closed-Leaf check-in: 1c94834879 user: drh tags: separate-lock-mutex) | |
| 21:10 | First attempt at reducing mutex contention in the unix VFS by providing a separate mutex for each unixInodeInfo object. (check-in: f69afaf00a user: drh tags: separate-lock-mutex) | |
| 18:53 | Fix typo of 'SQLITE_OMIT_WINDOWFUNC'. (check-in: 8607b84a5c user: mistachkin tags: trunk) | |
| 18:32 | Attempt to improve the documentation for snapshots. No changes to code. (check-in: 46dd076af5 user: drh tags: trunk) | |
| 10:57 | Fix the macros used to generate the output of "PRAGMA compile_options" so that they handle valid values for the SQLITE_DEFAULT_LOOKASIDE macro (which contain a "," character). (check-in: 1cc72845f9 user: dan tags: trunk) | |
|
2018-07-22
| ||
| 21:23 | Fix more harmless compiler warnings seen with MSVC. (check-in: edab5666f8 user: mistachkin tags: trunk) | |
| 21:08 | Another minor revision to the 'fulltestonly' set of tests. (check-in: 61f8e2a4c6 user: mistachkin tags: trunk) | |
| 20:24 | Fix harmless compiler warning. (check-in: ead4762dfc user: mistachkin tags: trunk) | |
| 06:25 | In the Win32 VFS, when truncating a file, unmap it first. (check-in: 21510a66dc user: mistachkin tags: trunk) | |
| 00:45 | Remove an unused branch in the FK logic. (Closed-Leaf check-in: 523ff77925 user: drh tags: dropViewNoStat) | |
|
2018-07-21
| ||
| 23:15 | In 'resetdb.test', close a database prior to trying to delete it. (check-in: 45137053a5 user: mistachkin tags: trunk) | |
|
2018-07-20
| ||
| 20:56 | When dropping a view, skip trying to delete from 'sqlite_stat*'. (check-in: 2f5be3a2dd user: mistachkin tags: dropViewNoStat) | |
| 19:24 | Change the SQLITE_Stat34 bit of the optimization test-control so that it prevents STAT4 data from being used but allows it to be loaded into the Index objects. This permits STAT4 to be turned on and off on a per-statement basis. (check-in: 489f3caf5d user: drh tags: trunk) | |
| 18:01 | Experimental change to ANALYZE so that when computing values for sqlite_stat1, it uses the maximum number for the number of rows having equivalent values, rather than the average. (Leaf check-in: 085f17e124 user: drh tags: stat1-max) | |
| 15:44 | New checks in PRAGMA integrity_check to validate the autovacuum settings in the header. (check-in: a4663f09c9 user: drh tags: trunk) | |
| 13:39 | Enhanced detection of problems on the freelist and on overflow list in PRAGMA integrity_check. (check-in: 11e58f5b37 user: drh tags: trunk) | |
|
2018-07-19
| ||
| 15:27 | Avoid a branch in the commit logic that is unreachable when compiled without SQLITE_ENABLE_BATCH_ATOMIC_WRITE. (check-in: 271b8980c3 user: drh tags: trunk) | |
| 14:40 | Allow the VACUUM following SQLITE_DBCONFIG_RESET_DATABASE to proceed even if the write-version in the header indicates that the database file is not writable. (check-in: 3dca8b9d5a user: drh tags: trunk) | |
| 11:44 | Experimental fix for resetting databases that have been deemed read-only due to a corrupt "read-version" header field. (Closed-Leaf check-in: e2394002d0 user: dan tags: exp-dbreset-fix) | |
|
2018-07-18
| ||
| 19:09 | Add the SQLITE_FCNTL_DATA_VERSION file control (check-in: a5087c5c87 user: drh tags: trunk) | |
| 17:37 | Fix a harmless compiler warning in the pager. Enhance the docs for sqlite3_changes() and sqlite3_total_changes() to refer to the data_version pragma. (check-in: 4c70ea5b0e user: drh tags: trunk) | |
|
2018-07-17
| ||
| 14:01 | If an SQLITE_IOERR error is encountered as part of an atomic commit on an F2FS file-system, retry the commit in legacy journal mode. (check-in: 2e0357c2ed user: dan tags: trunk) | |
| 13:55 | Fix for builds without SQLITE_ENABLE_BATCH_ATOMIC_WRITE. (Closed-Leaf check-in: b10ec14ef7 user: dan tags: exp-retry-atomic-commit) | |
|
2018-07-16
| ||
| 20:44 | Add new file doc/F2FS.txt, containing notes on the way SQLite uses the F2FS atomic commit feature. (check-in: 59efb1bfab user: dan tags: exp-retry-atomic-commit) | |
| 11:32 | Minor simplification to sqlite3RollbackAll(). (check-in: 432fdc2215 user: drh tags: trunk) | |
|
2018-07-14
| ||
| 20:25 | If an SQLITE_IOERR error is encountered as part of an atomic commit on an F2FS file-system, retry the commit in legacy journal mode. (check-in: 1c41250f67 user: dan tags: exp-retry-atomic-commit) | |
|
2018-07-13
| ||
| 20:28 | Remove an unused function declaration from fts5. (check-in: 148d9b6147 user: dan tags: trunk) | |
| 19:52 | Add the "categories" option to the unicode61 tokenizer in fts5. (check-in: 80d2b9e635 user: dan tags: trunk) | |
|
2018-07-12
| ||
| 19:39 | Merge latest begin-concurrent changes with this branch. (check-in: d33527d223 user: dan tags: begin-concurrent-pnu) | |
| 19:28 | Merge latest trunk changes into this branch. (check-in: 6a00a34e19 user: dan tags: begin-concurrent) | |
| 19:14 | Add a test-control to disable the skip-scan optimization. (check-in: 650a3fe03d user: dan tags: trunk) | |
| 11:28 | Add a test case to check that SQLITE_DBCONFIG_RESET_DATABASE can be used with wal mode databases even if there are active readers. (check-in: 6145f5b3ba user: dan tags: trunk) | |
|
2018-07-11
| ||
| 13:34 | On an UPSERT when the order of constraint checks is rearranged, make sure that the affinity transformations on the inserted content occur before any of the constraint checks. Fix for ticket [79cad5e4b2e219dd197242e9e5f4e]. (check-in: d120c45f3d user: drh tags: trunk) | |
| 03:27 | Adjustments to VdbeCoverage macros to deal with byte-code branches that can never be taken in some directions. (check-in: b170c0092b user: drh tags: trunk) | |
|
2018-07-10
| ||
| 23:31 | Remove incorrect ALWAYS() macros from the window function logic. (check-in: 94ac51cc4e user: drh tags: trunk) | |
| 22:24 | Add VdbeModuleComment()s on the three main code generators for window functions. (check-in: f7c239e959 user: drh tags: trunk) | |
| 20:50 | Minor comment changes. Add ALWAYS() macros on some unreachable branches in the xStep() methods of built-in window functions. (check-in: f2057542cf user: drh tags: trunk) | |
| 19:48 | Identify Select objects within a single statement using small sequential integers rather than "0x%p". This is more readable and yields the same result on successive runs. (check-in: a7cdc5bc85 user: drh tags: trunk) | |
| 18:50 | Modify tests in window3.test to be tolerant of rounding errors when comparing floating point values. (check-in: 7c26c443e7 user: dan tags: trunk) | |
| 17:26 | Fix a problem with using scalar sub-selects in window function queries. (check-in: 687fe532c2 user: dan tags: trunk) | |
| 17:10 | Further improvements to bytecode branch testing. Fix cases where the macros said a branch could not be taken when in fact it could be. Alter some window function branch coverage macros to indicate that comparison operands cannot be NULL. (check-in: 76e42b7071 user: drh tags: trunk) | |
| 16:04 | Enhancements and improved documentation to the byte-code branch coverage testing logic. Provide new macros that allow the code to specify that some branch instructions can never take the NULL path and that the OP_Jump opcode is only interested in equal/not-equal. The SQLITE_TESTCTRL_VDBE_COVERAGE file control callback now works slightly differently (it provides the callback with a bitmask of the branch action, rather than an integer). (check-in: cd2da7e1ba user: drh tags: trunk) | |
| 15:55 | Experimental planner change to avoid a skip-scan if a regular index scan on the same index columns can be done instead. (Leaf check-in: 350f29ea1c user: dan tags: exp-begin-concurrent-pnu) | |
| 15:48 | Merge begin-concurrent changes into this branch. (check-in: af17432eb1 user: dan tags: begin-concurrent-pnu) | |
| 15:45 | Merge latest trunk changes into this branch. (check-in: e9a3e8642e user: dan tags: begin-concurrent) | |
| 07:39 | Fix a harmless warning about comment formatting in the previous check-in. Simplify the ORDER BY dereferencing logic so that it avoids unreachable branches. (check-in: 0f6ec605e1 user: drh tags: trunk) | |
| 07:25 | Assert that if two functions compare equal in every other way, then they must both have OVER clauses, or neither has an OVER clause. Use this fact to simplify expression comparison. (check-in: 52559ad58c user: drh tags: trunk) | |
| 06:47 | Enhance the sqlite3ExprCompare() routine so that it knows to compare the OVER clause of window functions. (check-in: 0a7649afeb user: drh tags: trunk) | |
| 06:32 | Enhance the TreeView mechanism so that it shows the window function data structures as part of the abstract syntax tree. (check-in: a2c0e1bec0 user: drh tags: trunk) | |
| 05:11 | New VDBE comments and coverage macros. (check-in: a9a307265b user: drh tags: trunk) | |
|
2018-07-09
| ||
| 22:49 | Fixes for various harmless compiler warnings. (check-in: 5023b1b85b user: drh tags: trunk) | |
| 20:58 | Add a comment to restriction (6) of the push-down optimization. No changes to code. (check-in: 0c8a2f257f user: drh tags: trunk) | |
| 20:41 | Add an ALWAYS() around a branch in sqlite3BtreeSkipNext() that we believe must always be true. (check-in: 12be361a53 user: drh tags: trunk) | |
| 18:55 | Avoid leaving view-definitions with an incomplete set of column names/types in the in-memory schema if an OOM strikes while allocating the same. (check-in: 1ddbb5372e user: dan tags: trunk) | |
| 18:11 | Add a couple of OOM tests. (check-in: 50de2a0d2d user: dan tags: trunk) | |
| 17:33 | Remove redundant branches in window function processing. (check-in: 8fdaf3f37e user: drh tags: trunk) | |
| 16:24 | Simplification to the grammar rules for window functions. Fix a memory leak that can follow an OOM while parsing a comma-separated list of window definitions. (check-in: a568f9c9db user: drh tags: trunk) | |
| 13:31 | Throw an error if the second argument passed to nth_value() is not a positive integer. (check-in: 1a06e57a0b user: dan tags: trunk) | |
| 06:51 | Fix a bad assert() in window.c. (check-in: fe8aaf0c80 user: dan tags: trunk) | |
| 02:37 | Simplification to the logic that detects misuse of the application-defined function creation interfaces. (check-in: 8f21d77845 user: drh tags: trunk) | |
| 02:02 | During WITHOUT ROWID table creation, if the sqlite3CreateTable() call fails due to an authorizer denying the INSERT into the sqlite_master table, then detect this fact and abort the CREATE TABLE early, to avoid an assertion fault. (check-in: 164b1641e3 user: drh tags: trunk) | |
|
2018-07-08
| ||
| 01:02 | Identify specific FuncDef objects for window functions using the pointer to the function name (FuncDef.zName) rather than the pointer to the xStep method. This allows xStep method pointer to be replaced with a single noopStepFunc() procedure, and thus save having lots of different no-op step functions. (check-in: 410e13b0e0 user: drh tags: trunk) | |
|
2018-07-07
| ||
| 20:55 | Simplifications to the implementation of the sum() SQL function. (check-in: a8b1300237 user: drh tags: trunk) | |
| 20:26 | Fix another problem with reusing LSM cursors for range scans. (check-in: ae3fc7652f user: dan tags: trunk) | |
| 20:23 | Fix the JSON extension so that it can be compiled separately from the amalgamation. (check-in: 4b8cfe7bfe user: drh tags: trunk) | |
| 20:13 | Fix an LSM problem caused by using the same cursor for equality and range scans. (check-in: f05bead371 user: dan tags: trunk) | |
| 19:47 | Add ALWAYS() macros on results of sqlite3_aggregate_context() calls in xInverse() implements, since they can never fail. (check-in: fdef2a921d user: drh tags: trunk) | |
| 19:36 | Add an assert() to help verify that OP_AggInverse is never called on an accumulator that has not previously been processed by OP_AggStep. (check-in: 4213889103 user: drh tags: trunk) | |
| 17:38 | Add missing VdbeCoverage() macro to window.c. (check-in: 63f4d306ba user: dan tags: trunk) | |
| 17:30 | Fix a problem with the handling of NULL values in the min() window function. (check-in: b76f35b092 user: dan tags: trunk) | |
|
2018-07-06
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| 17:19 | Try to improve the error messages for misformed frame specifications in window definitions. (check-in: 927b95a081 user: drh tags: trunk) | |
| 14:31 | Also disallow non-constant expressions in "<expr> PRECEDING" or "<expr> FOLLOWING" clauses. (check-in: a6dffecc6b user: dan tags: trunk) | |
| 14:15 | Ensure an error is returned if the user specifies an unsupported frame type. (check-in: 0f3f8fcde1 user: dan tags: trunk) | |
| 13:48 | Prevent "UNBOUNDED FOLLOWING" from being used as the starting boundary of a window-frame. And "UNBOUNDED PRECEDING" from being used as the ending boundary. (check-in: e51fdf66a2 user: dan tags: trunk) | |
| 13:25 | Remove some bad assert() statements from the implementations of window functions percent_rank() and cume_dist(). (check-in: 443f0c286f user: dan tags: trunk) | |
| 07:42 | Return an error if DISTINCT is used with a window-function (e.g. "count(DISTINCT <expr>) OVER (...)"). (check-in: d59bcc8eea user: dan tags: trunk) | |
|
2018-07-05
| ||
| 21:22 | Use separate opcodes, OP_AggValue and OP_AggInverse, for the new callbacks associated with Window Functions, for improved readability of EXPLAIN output. (check-in: fa65380509 user: drh tags: trunk) | |
| 20:33 | Update the recipe for resetting a database using SQLITE_DBCONFIG_RESET_DATABASE. (check-in: c43dd23fb0 user: dan tags: trunk) | |
| 20:05 | Get the json_group_array() and json_group_object() SQL functions working as window functions. (check-in: 916cdc83f5 user: drh tags: trunk) | |
| 18:34 | Return an error if a "RANGE" window-frame uses "<expr> PRECEDING" or "<expr> FOLLOWING". (check-in: 786c87ba41 user: dan tags: trunk) | |
| 18:19 | Fix a problem in the xInverse method of window-function group_concat(1). (check-in: 7339128310 user: dan tags: trunk) | |
| 17:35 | Fix the .dump command in the command-line shell so that it does not show extraneous SELECT statements when ".echo on" is enabled. (check-in: 11763cac33 user: drh tags: trunk) | |
| 17:16 | In wal mode, if a "BEGIN EXCLUSIVE" command (or any other command that upgrades from no transaction directly to a write transaction) hits an SQLITE_BUSY_SNAPSHOT error, change the error code to SQLITE_BUSY to indicate to the caller that the condition may be transient. (check-in: e6108047cb user: dan tags: trunk) | |
| 17:03 | Fix a typo inside an assert() statement introduced by the previous commit. (Closed-Leaf check-in: e335772847 user: dan tags: exp-busy-snapshot-fix) | |
| 15:46 | In wal mode, if a "BEGIN EXCLUSIVE" command (or any other command that upgrades from no transaction directly to a write transaction) hits an SQLITE_BUSY_SNAPSHOT error, change the error code to SQLITE_BUSY to indicate to the caller that the condition may be transient. (check-in: 221ff63e79 user: dan tags: exp-busy-snapshot-fix) | |
|
2018-07-03
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| 20:17 | Test that a race condition can cause a "BEGIN EXCLUSIVE" to return SQLITE_BUSY_SNAPSHOT in wal mode. (check-in: 5a12db75d1 user: dan tags: trunk) | |
|
2018-07-02
| ||
| 17:45 | Fix a problem in the xInverse callback for the built-in sum() window function. (check-in: b656364738 user: dan tags: trunk) | |
| 17:14 | Fix a segfault caused by having identical window functions in the select-list and ORDER BY clause of a SELECT statement. (check-in: 693b4350d7 user: dan tags: trunk) | |
| 15:03 | Fix a crash caused by a LIKE pattern that consists of a single escape character. Problem found by OSSFuzz. (check-in: bb9bfc3a12 user: dan tags: trunk) | |
| 12:07 | Fix a segfault caused by invoking a regular aggregate as a window-function. And some problems with count(*) when used as a window-function. (check-in: 4f3c8a82fd user: dan tags: trunk) | |
|
2018-07-01
| ||
| 16:05 | Quick patch to the Lemon parser template to avoid an array overread reported by OSSFuzz. A proper fix involves enhancements to the table generators in Lemon to make the overread impossible. That fix will take longer to implement. The current check-in is a stop-gap. (check-in: 3f6730be4c user: drh tags: trunk) | |
|
2018-06-30
| ||
| 20:26 | Avoid a warning in fts5.c due to not using generated routine sqlite3Fts5ParserFallback(). (check-in: 65ff5144a5 user: dan tags: trunk) | |
| 20:15 | Merge implementation of SQL window functions from the exp-window-functions into trunk. (check-in: 17198a1206 user: dan tags: trunk) | |
| 20:00 | Fix a minor problem in the code for determining whether or not an SQL statement is SQLITE_TOOBIG. (Closed-Leaf check-in: 763e6c9e2b user: dan tags: exp-window-functions) | |
| 19:12 | Merge all changes from the weak-fallback branch except those related to the weak-fallback feature itself. (check-in: aad718fb1a user: dan tags: exp-window-functions) | |
| 18:54 | Have the tokenizer handle fallback for tokens "OVER" and "FILTER" in the same way as it does for "WINDOW". (Leaf check-in: 12d819e1c1 user: dan tags: weak-fallback) | |
|
2018-06-29
| ||
| 20:43 | Further performance related tweaks for sqlite3RunParser(). (check-in: 5eb4776598 user: dan tags: weak-fallback) | |
| 20:21 | Further tweaks to sqlite3RunParser(). (check-in: eef61ffab7 user: dan tags: weak-fallback) | |
| 19:54 | Improve on the previous checkin. Still a bit slow. (check-in: c1fb41aa7b user: dan tags: weak-fallback) | |
| 17:44 | Instead of using a lemon %fallback directive, have the tokenizer try to figure out whether an instance of "WINDOW" should be TK_WINDOW or TK_ID. (check-in: 022079cb0d user: dan tags: weak-fallback) | |
|
2018-06-28
| ||
| 20:05 | Modifications to parse.y to better support backwards compatibility for the "window" keyword. (check-in: 7c4b879bdb user: dan tags: weak-fallback) | |
| 03:38 | Introduce the concept of "weak fallback" in the parser. A weak fallback only occurs if a syntax error would result otherwise. (check-in: c41d7079fb user: drh tags: weak-fallback) | |
|
2018-06-27
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| 20:24 | Add missing VdbeCoverage() and VdbeCoverageNeverTaken() macros to window.c. (check-in: 4383cb68a1 user: dan tags: exp-window-functions) | |
| 19:48 | Avoid redundant ORDER BY operations when rewriting SELECT statements that contain window functions. (check-in: 336de43a47 user: dan tags: exp-window-functions) | |
|
2018-06-26
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| 20:19 | Merge latest trunk changes. (check-in: d9f814b443 user: dan tags: exp-window-functions) | |
|
2018-06-25
| ||
| 20:34 | Add documentation comment for sqlite3_create_window_function(). And further tests. (check-in: 3f2705b933 user: dan tags: exp-window-functions) | |
| 11:42 | Fix another problem that could cause a crash when a window function was used in a view. (check-in: e954145a3a user: dan tags: exp-window-functions) | |
|
2018-06-23
| ||
| 19:29 | Fix problems with using window-functions in correlated sub-queries. (check-in: 3e23cfc813 user: dan tags: exp-window-functions) | |
| 16:26 | Fix a problem with using LIMIT in window-function queries. (check-in: c1abd2dda4 user: dan tags: exp-window-functions) | |
| 07:59 | Fix a problem with using a window-function SELECT as a FROM clause sub-query in some circumstances. (check-in: 11d733396f user: dan tags: exp-window-functions) | |
|
2018-06-22
| ||
| 20:51 | Omit all window-function related code when building with SQLITE_OMIT_WINDOWFUNC. (check-in: 5f04b01646 user: dan tags: exp-window-functions) | |
| 17:57 | Merge latest trunk changes. (check-in: ebe65b2386 user: dan tags: exp-window-functions) | |
|
2018-06-21
| ||
| 23:53 | Improved context for error_log message coming from sqlite3_prepare(). (check-in: fea7ade649 user: drh tags: trunk) | |
| 23:43 | Improved context for error_log message coming from sqlite3_prepare(). (Leaf check-in: 64df1189b3 user: drh tags: ieee754) | |
| 19:20 | Fix a problem with handling single row partitions in the percent_rank() window function. (check-in: b84fbf16ea user: dan tags: exp-window-functions) | |
|
2018-06-20
| ||
| 09:23 | Add tests to improve coverage of code in window.c. Fix a problem with "SELECT row_number() OVER ()". (check-in: f41b6b7317 user: dan tags: exp-window-functions) | |
|
2018-06-19
| ||
| 19:15 | Merge latest trunk changes with this branch. (check-in: 6ad0e64b46 user: dan tags: exp-window-functions) | |
| 18:11 | Fix a problem caused by a sub-query containing a window function in the FROM clause of a query that itself uses a window function. (check-in: f4b1b6f85b user: dan tags: exp-window-functions) | |
| 17:13 | Fix a problem with using min() or max() as a window function. (check-in: 801074ce63 user: dan tags: exp-window-functions) | |
| 11:15 | Minor change to the input grammar to make the parser tables slightly smaller. (check-in: 320fa69e6a user: drh tags: trunk) | |
|
2018-06-18
| ||
| 20:34 | Fix problems with using window functions in CREATE VIEW statements. (check-in: 943bccd2a6 user: dan tags: exp-window-functions) | |
| 20:08 | Add test case for the fix in the previous commit. (check-in: 39434262d5 user: dan tags: trunk) | |
| 19:09 | Fix typo in the 'normalize' extension. (check-in: 0c9163ea23 user: mistachkin tags: trunk) | |
| 17:36 | Ensure that all four callbacks are provided when registering a window function (otherwise SQLITE_MISUSE is returned). (check-in: 5720dcd8b1 user: dan tags: exp-window-functions) | |
| 16:55 | Add new API function sqlite3_create_window_function(), for creating new aggregate window functions. (check-in: da03fb4318 user: dan tags: exp-window-functions) | |
|
2018-06-15
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| 20:46 | Add extra OOM test. (check-in: ac251f7260 user: dan tags: exp-window-functions) | |
| 19:01 | Fix another problem in lead()/lag(). And some errors that could occur following OOM faults. (check-in: fadd4dc119 user: dan tags: exp-window-functions) | |
| 16:10 | Fix a bug in the lead() and lag() window functions causing them to fail when used in queries featuring multiple window functions. (check-in: 3839fb18f9 user: dan tags: exp-window-functions) | |
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2018-06-14
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| 20:52 | Fix a problem with handling of statements containing two or more different windows. (check-in: 567e09ef2a user: dan tags: exp-window-functions) | |
| 19:06 | Fix problem with window functions min() and max() when used with a PARTITION clause and a frame starting point other than "UNBOUNDED PRECEDING". (check-in: 43eb1e75a4 user: dan tags: exp-window-functions) | |
| 14:30 | Merge latest trunk changes into this branch. (check-in: 5cf5f1808a user: dan tags: exp-window-functions) | |
| 14:27 | Improve comments and code legibility in new file window.c. (check-in: bb915854d4 user: dan tags: exp-window-functions) | |
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2018-06-13
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| 20:29 | Fix problems with "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" window frames. (check-in: c34f31dbd7 user: dan tags: exp-window-functions) | |
| 17:19 | Output infinity as 1e999 in the ".dump" command of the command-line shell. (check-in: ee431d55eb user: drh tags: trunk) | |
| 16:52 | Pad out the sqlite3_value structure to be a multiple of 8 bytes. (check-in: f76dc33bde user: drh tags: trunk) | |
| 16:08 | Fix some test case numbers in expert1.test. (check-in: b90c3c16c0 user: dan tags: trunk) | |
| 11:41 | Unless SQLITE_OMIT_AUTOINIT is defined, allow sqlite3_vfs_unregister() to be called before sqlite3_initialize(). (check-in: ab6c1ae46d user: dan tags: trunk) | |
| 11:11 | Check that malloc() has not already failed when invoking the xUpdate() method of a virtual table implementation. This fixes an assert() failure in FTS5 that could occur following an OOM condition. (check-in: e9a7e4d58f user: dan tags: trunk) | |
| 02:20 | Add the unused SQLITE_CANTOPEN_DIRTYWAL result code. This code was used in some historical versions on the apple-osx branch but was removed by check-in [27e20d699872b2b8]. Restore it so that old code that actually references that result code will still compile. (check-in: 9f40383eed user: drh tags: trunk) | |
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2018-06-12
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| 20:53 | Fix another issue to do with window-functions in aggregate queries. (check-in: 6413e38a17 user: dan tags: exp-window-functions) | |
| 19:35 | Documentation update: clarify that sqlite3_errcode() and related interfaces do not themselves modify the error code. (check-in: 858fc52b23 user: drh tags: trunk) | |
| 19:22 | Documentation updates: clarify the behavior of sqlite3_column and sqlite3_value interfaces following an OOM error. (check-in: 428c581e4b user: drh tags: trunk) | |
| 18:40 | Fix some problems with using window-functions in aggregate queries. (check-in: fe7081e095 user: dan tags: exp-window-functions) | |
| 13:52 | Improvements to SCopy correctness tracking when SQLITE_DEBUG is enabled. (check-in: b2973f2357 user: drh tags: trunk) | |
| 13:16 | Fix the "Synopsis" on the OP_BitNot opcode. (check-in: acd78df611 user: drh tags: trunk) | |
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2018-06-11
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| 21:33 | Improvements to the --enable and --disable options for the amalgamation tarball. (check-in: 02e337e080 user: drh tags: trunk) | |
| 20:50 | Clarify the relationship between a Window object and its associated Expr. (check-in: 0cd55e98a4 user: dan tags: exp-window-functions) | |
| 19:47 | Fix various --enable and --disable options on the top-level configure script. (check-in: 6fd7e8ceb9 user: drh tags: trunk) | |
| 18:16 | Fix handling of window frames containing negative number of rows. e.g. "ROWS x PRECEDING AND y PRECEDING" where (x<y). (check-in: b6d9c7eda8 user: dan tags: exp-window-functions) | |
| 18:06 | Fix the column cache invalidation logic in the code for ROWID uniqueness constraint checking in the INSERT command. This fixes ticket [c2432ef9089ee73bd]. (check-in: 0b485a571c user: drh tags: trunk) | |
| 17:35 | Add the OP_SetTabCol and OP_VerifyTabCol opcodes, only when compiling with SQLITE_DEBUG, to do run-time verification of the column cache. (check-in: b37614a367 user: drh tags: trunk) | |
| 13:10 | Strengthen the sqlite3VdbeMemAboutToChange() run-time verification mechanism to better detect missed calls to AboutToChange(). (check-in: 793e942205 user: drh tags: trunk) | |
| 11:19 | Fix a typon in main.mk. (check-in: e74f86f271 user: dan tags: exp-window-functions) | |
| 01:30 | Always initialize the WhereClause.hasOr field that was added by check-in [292724ffc4]. Error detected by OSSFuzz. (check-in: 9faf41713e user: drh tags: trunk) | |
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2018-06-10
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| 07:42 | Update Makefile.msc to include window.c in the build. (check-in: 16db73842a user: dan tags: exp-window-functions) | |
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2018-06-09
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| 20:52 | Fix a typo in the amalgamation autoconf file. (check-in: de0857f396 user: drh tags: trunk) | |
| 18:09 | Merge recent trunk changes with this branch. (check-in: c71f23590c user: dan tags: exp-window-functions) | |
| 17:58 | Update the amalgamation build script to include window.c. (check-in: 21d2f4a62e user: dan tags: exp-window-functions) | |
| 17:43 | Add support for FILTER clause on aggregate window functions. (check-in: ceaf798ea0 user: dan tags: exp-window-functions) | |
| 16:49 | Slightly smaller and faster code by encapsulating wal-index hash table location information in a separate WalHashLoc object rather than passing around the various elements as separate variables. (check-in: 538a365b7a user: drh tags: trunk) | |
| 14:13 | Improved comments an presentation for the recent IN operator decision improvement. (check-in: 31e480f68d user: drh tags: trunk) | |
| 02:49 | Performance improvement to sqlite3WhereExprUsage(). (check-in: fd09341390 user: drh tags: trunk) | |
| 01:12 | Compute the bitmask of indexed columns for each index once when the Index objecct is constructed, instead of recomputing it every time it is needed. (check-in: d735872ec3 user: drh tags: trunk) | |
| 00:09 | Avoid invoking the whereLoopAddOr() routine in the query planner if there are no OR operators in the WHERE clause, thus speeding up query planning slightly. (check-in: 292724ffc4 user: drh tags: trunk) | |
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2018-06-08
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| 23:23 | When the query planner has the opportunity to use an IN operater constraint on a term of an index other than the left-most term, use the estimated number of elements on the right-hand side of the IN operator to determine if makes sense to use the IN operator with index lookups, or to just do a scan over the range of the table identified by the index terms to the left. Only do this if sqlite_stat1 measurements are available as otherwise the performance estimates will not be accurate enough to discern the best plan. Bias the decision slightly in favor of using index lookups on each element of the IN operator. (check-in: 2cbbabdf5e user: drh tags: trunk) | |
| 21:21 | Only choose to scan an IN operator rather than use an index if we have real STAT1 data to suggest it is advantageous. (Closed-Leaf check-in: 30e874661d user: drh tags: in-scan-vs-index) | |
| 20:58 | Add support for the WINDOW clause. (check-in: 19c983b511 user: dan tags: exp-window-functions) | |
| 19:54 | Merge the btreeNext() assertion bug fix from trunk. (check-in: 11bd66e090 user: drh tags: in-scan-vs-index) | |
| 19:13 | Fix an assert() that can be false for a corrupt database and a strange query that uses a recursive SQL function to delete content from a corrupt database file while it is being queried. (check-in: 99057383ac user: drh tags: trunk) | |
| 18:22 | Consider doing a partial table scan to fulfill an IN operator rather than using an index. Try to pick the plan with the lowest cost. (check-in: 1fa40a78fe user: drh tags: in-scan-vs-index) | |
| 16:11 | Do not flatten sub-queries that contain window functions. (check-in: 236cb75bd1 user: dan tags: exp-window-functions) | |
| 11:45 | Fixes to allow group_concat() to be used as a window function. (check-in: 89bbc9ba8f user: dan tags: exp-window-functions) | |
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2018-06-07
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| 20:35 | Merge latest trunk changes with this branch. (check-in: 2510220342 user: dan tags: exp-window-functions) | |
| 20:08 | Add window functions lag() and lead(). (check-in: ef34207073 user: dan tags: exp-window-functions) | |
| 18:13 | The IN-early-out optimization: When doing a look-up on a multi-column index and an IN operator is used on a column other than the left-most column, then if no rows match against the first IN value, check to make sure there exist rows that match the columns to the right before continuing with the next IN value. (check-in: 09fffbdf9f user: drh tags: trunk) | |
| 18:01 | Fix the assert()s in the byte-code engine that prove that cursors are unidirectional. (Closed-Leaf check-in: 4b0b4e1403 user: drh tags: multikey-opt-idea) | |
| 17:45 | Add support for window function first_value(). (check-in: 060b264028 user: dan tags: exp-window-functions) | |
| 17:32 | Remove the NextIfOpen and PrevIfOpen opcodes which are no longer needed when the IN-early-out optimization is working. (check-in: 439c816227 user: drh tags: multikey-opt-idea) | |
| 16:07 | Test cases. (check-in: 085e863713 user: drh tags: multikey-opt-idea) | |
| 15:54 | Fix problems with the nth_value() function. (check-in: 63002b9a09 user: dan tags: exp-window-functions) | |
| 15:28 | Merge the ".stat/.eqp" CLI fix from trunk. (check-in: a91cad3381 user: drh tags: multikey-opt-idea) | |
| 15:23 | Avoid using a prepared statement for ".stats on" after it has been closed by the ".eqp full" logic. Fix for ticket [7be932dfa60a8a6b3b26bcf76]. (check-in: bb87c054b1 user: drh tags: trunk) | |
| 14:59 | Add the WHERE_IN_EARLYOUT flag and use it to clarify the logic of this optimization. (check-in: 522f1eacc2 user: drh tags: multikey-opt-idea) | |
| 14:32 | Merge recent trunk enhancements. (check-in: e9d7bf4f7b user: drh tags: multikey-opt-idea) | |
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2018-06-06
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| 23:31 | Change a comma into a logically equivalent but semantically clearer semicolon. (check-in: 71f97f0f82 user: drh tags: trunk) | |
| 20:55 | More space and performance enhancements to sqlite3VdbeRecordCompare(). (check-in: 83a60ff056 user: drh tags: trunk) | |
| 20:51 | Add implementation of nth_value() window function. (check-in: eb1fb420ac user: dan tags: exp-window-functions) | |
| 20:29 | Small performance optimization in sqlite3VdbeRecordCompareWithSkip() for the common case where the comparison is equal. (check-in: 1e616e256a user: drh tags: trunk) | |
| 19:48 | Rearrange the order of some checks in the integrity_check pragma for a very slight performance gain. (check-in: 4b853f0205 user: drh tags: trunk) | |
| 18:50 | Fix the sqlite3BeginTrans() calls within the snapshot extension. (check-in: 1fef7ad25b user: drh tags: trunk) | |
| 17:45 | Another minor optimization to OP_Transaction. (check-in: d80077aee3 user: drh tags: trunk) | |
| 16:28 | Change sqlite3BtreeBeginTrans() to return the BTREE_SCHEMA_COOKIE, for a small speed improvement when starting new transactions. (check-in: a10662aa91 user: drh tags: trunk) | |
| 01:18 | Fix the ".archive" command in the CLI (and the corresponding -A command-line option) so that it silently ignores filenames that contain "../" in their names. This prevents the "Zip Slip" attack. (check-in: 27291f2d7f user: drh tags: trunk) | |
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2018-06-05
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| 23:51 | Update the version number to 3.25.0 for the next development cycle. (check-in: 7598236c35 user: drh tags: trunk) | |
| 23:21 | Avoid unnecessary loads of columns in an aggregate query that are not within an aggregate function and that are not part of the GROUP BY clause. (check-in: e15e100660 user: drh tags: trunk) | |
| 20:45 | Add the OP_IfNoHope and OP_SeekHit opcodes used to reduce the number of unnecessary sqlite3BtreeMovetoUnpacked() calls when checking for an early exit on IN-operator loops. Futher optimizations are likely possible here. (check-in: 6bf251af43 user: drh tags: multikey-opt-idea) | |
| 20:04 | Calculate non-aggregate expressions in the SELECT list of an aggregate query that does not use min() or max() once per group, instead of once per row visited. (Closed-Leaf check-in: dce2dfbe15 user: dan tags: exp-agg-opt) | |
| 16:16 | Add implementation of last_value() window function. (check-in: 2493ce1a40 user: dan tags: exp-window-functions) | |
| 15:16 | Use an OP_NotFound opcode to cancel futile IN operators early. The current implementation is suboptimal because it always runs teh OP_NotFound. This still needs to be enhanced to only do the OP_NotFound if no results have been seen on the current loop. (check-in: 87a9fc504f user: drh tags: multikey-opt-idea) | |
| 13:54 | Merge trunk changes. (check-in: 047295c588 user: drh tags: multikey-opt-idea) | |
| 13:43 | Update and correct the documentation on the OP_OpenRead, OP_OpenWrite, and OP_ReopenIdx opcodes. No code changes other than the addition of an assert(). (check-in: 8a0b730d0e user: drh tags: trunk) | |
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2018-06-04
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| 19:24 | Version 3.24.0 (check-in: c7ee083322 user: drh tags: trunk, release, version-3.24.0) | |
| 18:55 | Add implementation of window function ntile(). (check-in: 3f093f608c user: dan tags: exp-window-functions) | |
| 13:27 | Merge recent changes from trunk. (check-in: f8df2a8e28 user: drh tags: multikey-opt-idea) | |
| 08:28 | Merge latest trunk changes into this branch. (check-in: 83d6416a86 user: dan tags: exp-window-functions) | |
| 08:22 | Add support for window function cume_dist(). Improve tests for percent_rank(). (check-in: 76543f7dd3 user: dan tags: exp-window-functions) | |
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2018-06-02
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| 21:04 | Add support for window functions row_number(), rank(), dense_rank() and percent_rank(). (check-in: 91c1cb7a21 user: dan tags: exp-window-functions) | |
| 19:14 | Avoid using a misaligned pointer. (check-in: 1ecb3aa13d user: drh tags: trunk) | |
| 19:01 | Fix the usage of posix_fallocate() so that it correctly responds to EINVAL returns. (check-in: ce2c3e7a87 user: drh tags: trunk) | |
| 17:00 | Update a test case in malloc5.test to take into account that malloc() sometimes returns slightly more space than requested. (check-in: 3d5eae1c26 user: dan tags: trunk) | |
| 16:32 | Work around a sanitizer warning about a pointer being only 4-byte aligned instead of 8-byte aligned. (Closed-Leaf check-in: 1b807b51cd user: drh tags: align8-fix) | |
| 14:37 | Proposed fix for the use of posix_fallocate() so that it handles EINVAL returns correctly. (Closed-Leaf check-in: ab3a5539db user: drh tags: einval-from-fallocate) | |
| 12:05 | Fix the CSV extension so that it works with single-column CSV files. (check-in: e336cf0048 user: drh tags: trunk) | |
| 11:31 | Ensure that sqlite3AuthRead() is only call for TK_COLUMN and TK_TRIGGER expression nodes. This fixes a harmless assert() identified by OSSFuzz. Move the assert() into a position where it is tested even if the authorizer is disabled. (check-in: d0c3beef7c user: drh tags: trunk) | |
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2018-06-01
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| 21:00 | Allow an entire partition to be cached in a temp table for all types of window frames. This is required by nth_value() and others. (check-in: b5b18f6613 user: dan tags: exp-window-functions) | |
| 13:30 | Fix a bug in the SQLITE_ENABLE_SORTER_REFERENCES code causing an out-of-bounds array reference. (check-in: 8cadaf587d user: dan tags: trunk) | |
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2018-05-31
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| 19:14 | More documentation typo fixes. No code changes. (check-in: 66c24513c2 user: drh tags: trunk) | |
| 19:00 | Fix a harmless typo in a comment used to generate documentation. (check-in: 5a2a88cb01 user: drh tags: trunk) | |
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2018-05-30
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| 20:44 | Allow min() and max() to be used as window functions. (check-in: c16125a884 user: dan tags: exp-window-functions) | |
| 14:17 | Add the Makefile.fallback makefile to the amalgamation tarball. (check-in: ce3d045633 user: drh tags: trunk) | |
| 07:36 | Do not use the codec on the resetdb.test script. (check-in: fe55cea0c8 user: drh tags: trunk) | |
| 07:24 | Fix a typo in an error message in the CLI. (check-in: 8088398081 user: drh tags: trunk) | |
| 01:14 | Fix the parser so that it builds with -DSQLITE_OMIT_CTE. (check-in: 86ee267ee8 user: drh tags: trunk) | |
| 00:59 | Fix a harmless compiler warning. (check-in: 8d02c7a6a0 user: drh tags: trunk) | |
| 00:54 | Demonstration code on a possible technique for optimizing the use of IN operator on columns to the right of multicolumn indexes. If the OP_Noop generated where were really a new opcode that checked to see if there existed any entries in the index with a matching prefix, it might prevent unnecessary iterations of the IN operator. (check-in: 92f0fe155d user: drh tags: multikey-opt-idea) | |
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2018-05-29
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| 19:12 | Increase the number of database handles opened by test script oserror.test to provoke an "out of file-descriptors" error to 20000 (from 2000). (check-in: 3b00f73456 user: dan tags: trunk) | |
| 16:37 | Fix autoinc.test and resetdb.test so that they work with all permutations. (check-in: 89f56d6b0a user: dan tags: trunk) | |
| 15:18 | Add a comment to justify a goto statement. No code changes. (check-in: f141d80647 user: drh tags: trunk) | |
| 14:29 | More minor changes to test scripts. (check-in: ce9b756f09 user: dan tags: trunk) | |
| 14:06 | Fix some test script issues caused by recent EXPLAIN QUERY PLAN enhancements. (check-in: f808e22831 user: dan tags: trunk) | |
| 13:25 | Do not run test file "resetdb.test" as part of permutation "inmemory_journal". (check-in: 4921e5bae4 user: dan tags: trunk) | |
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2018-05-28
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| 18:30 | Further window frame tests and fixes. (check-in: e74c6e9185 user: dan tags: exp-window-functions) | |
| 18:29 | Do not require a statement journal in cases where REPLACE conflict handling is used to insert a single row, so long as the REPLACE operation cannot fire any triggers or foreign key actions. (check-in: 469a62ca33 user: dan tags: trunk) | |
| 18:25 | When compiling with SQLITE_DEBUG, add run-time checks to ensure that no statement aborts unless either there have been no writes or else there is a statement journal. (check-in: ce99c77244 user: drh tags: trunk) | |
| 17:43 | Fix the build so that it works with -DSQLITE_TEST_REALLOC_STRESS (Closed-Leaf check-in: 90ba2b2e5c user: drh tags: stmt-journal-testing) | |
| 17:31 | When compiling with SQLITE_DEBUG, add run-time checks to ensure that no statement aborts unless either there have been no writes or else there is a statement journal. (check-in: 5a4542dbcf user: drh tags: stmt-journal-testing) | |
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2018-05-26
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| 21:17 | More fixes for different window frame types. (check-in: 2c85668a0f user: dan tags: exp-window-functions) | |
| 16:00 | Store application-defined function names as lower-case to avoid the need for case conversions before calling xFindFunction on virtual tables. Avoid using lookaside to store the destructors for application defined functions, as lookaside should be reserved for transient allocations. (check-in: 777189ce88 user: drh tags: trunk) | |
| 13:55 | Add a single sentence of documentation about the virtual table scan flags. No changes to code. (check-in: 27b4fa5dd0 user: drh tags: trunk) | |
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2018-05-25
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| 20:30 | Fix "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" window frame processing. (check-in: b4e9c68669 user: dan tags: exp-window-functions) | |
| 09:36 | Merge latest trunk changes into this branch. (check-in: 6232519899 user: dan tags: exp-window-functions) | |
| 09:29 | Fixes for "ROWS BETWEEN <expr> FOLLOWING AND <expr> FOLLOWING" and "ROWS BETWEEN <expr> FOLLOWING AND UNBOUNDED FOLLOWING" (check-in: 5ac44872fd user: dan tags: exp-window-functions) | |
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2018-05-24
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| 23:51 | When doing a one-pass UPDATE or DELETE on virtual tables, close the cursor prior to running VUpdate. This allows one-pass to work on virtual tables that do not allow concurrent reads and writes. Enhance rtree to take advantage of this new capability. (check-in: b816023ce0 user: drh tags: trunk) | |
| 22:42 | New test case for reading and writing the same rtree concurrently. (check-in: 3ba08e53d5 user: drh tags: trunk) | |
| 22:31 | Do not allow RTree writes when a read cursor is active on the same virtual table, as the writes might rebalance and disrupt the read cursors. Return the new SQLITE_LOCKED_VTAB error code if this happens. (check-in: d4ce666108 user: drh tags: trunk) | |
| 21:10 | Allow "<expr> PRECEDING" to be used to specify the end of a window frame. (check-in: 7b709a989c user: dan tags: exp-window-functions) | |
| 17:49 | Support other frame types that use "<expr> PRECEDING" or "<expr> FOLLOWING" as start or end conditions. (check-in: ec7b648c7f user: dan tags: exp-window-functions) | |