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112 events for the month beginning 2018-09-01 by user drh
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2018-09-29
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| 19:38 | Add the PRAGMA table_vinfo command (with an extra "v" before "info") that works like PRAGMA table_info (without the "v") except that it also shows hidden columns on virtual tables. (check-in: 8bcd1a59 user: drh tags: pragma-table-vinfo) | |
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2018-09-28
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| 23:53 | Fix test cases so that they work with ICU. (check-in: d04b2013 user: drh tags: trunk) | |
| 18:51 | Fix a bug in the sqlite_memstat virtual table that was causing it to report the amount of memory used as zero bytes. (check-in: 8a758a87 user: drh tags: trunk) | |
| 14:01 | Add the geopoly_regular(X,Y,R,N) function to the geopoly extension. (check-in: 4505bbae user: drh tags: trunk) | |
| 13:18 | Make most geopoly functions pure. (check-in: 944e167a user: drh tags: trunk) | |
| 00:16 | Rig geopoly to use sqlite3AtoF() if it is available, as that routine is much faster than atof(). (check-in: 470c6c07 user: drh tags: trunk) | |
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2018-09-27
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| 23:57 | Small performance optimization in the JSON parser of Geopoly. (check-in: fb520e71 user: drh tags: trunk) | |
| 20:37 | Enhance the GeoPOLY extension so that it always stores its polygons in the binary format, which is faster and more compact. (check-in: dc35f7b1 user: drh tags: trunk) | |
| 20:20 | • Fixed ticket [69d64233]: The typeof() and length() functions fail in some virtual tables. plus 5 other changes (artifact: 8d26e66a user: drh) | |
| 20:20 | Ensure that the OP_VColumn opcode does set sqlite3_vtab_nochange() unless the OPFLAG_NOCHNG bit is set in P5. Fix for ticket [69d642332d25aa3b7315a6d385] (check-in: 322ab1fc user: drh tags: trunk) | |
| 20:04 | • New ticket [69d64233] The typeof() and length() functions fail in some virtual tables.. (artifact: 43a256c6 user: drh) | |
| 17:15 | Modify the memstat virtual table so that it works with SQLite version 3.9.2. (check-in: 7171d8ae user: drh tags: trunk) | |
| 17:03 | Add the sqlite_memstat extension - an eponymous virtual table that shows memory usages statistics for SQLite. (check-in: 954ef61f user: drh tags: trunk) | |
| 16:57 | Enhancements to sqlite_memstat: (1) Add an extra "schema" column to show the schema name for ZIPVFS stats. (2) Only show ZIPVFS stats to schema that use ZIPVFS (3) Put a NULL in unused columns of the output. (Closed-Leaf check-in: 9351135b user: drh tags: memstat-vtab) | |
| 15:45 | Add initial ZIPVFS support for the "main" database to the sqlite_memstat virtual table. (check-in: 9cd27350 user: drh tags: memstat-vtab) | |
| 15:21 | Initial prototype of a eponymous virtual table that accesses sqlite3_status64() and sqlite3_db_status(). (check-in: 0b44e1f6 user: drh tags: memstat-vtab) | |
| 14:24 | Minor enhancement to the pager so that it remembers if the underlying database files is immutable. (Leaf check-in: 64db614e user: drh tags: immutable-pager) | |
| 13:10 | Disallow the use of window functions in the recursive part of a recursive CTE. Fix for ticket [e8275b415a2f03bee]. (check-in: b2849570 user: drh tags: branch-3.25) | |
| 13:02 | • Fixed ticket [e8275b41]: Assertion fault from window function inside of recursive CTE plus 5 other changes (artifact: 8e72ee7c user: drh) | |
| 12:42 | • Edit [7fc2994434c7d9ed|7fc29944]: Edit check-in comment. (artifact: 65a8953e user: drh) | |
| 11:03 | • New ticket [e8275b41] Assertion fault from window function inside of recursive CTE. (artifact: 0d057e12 user: drh) | |
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2018-09-26
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| 18:02 | Further improvements to the ".help" command in the CLI. (check-in: edc3d18e user: drh tags: trunk) | |
| 16:53 | Begin revamping the ".help" command in the command-line shell so that it can accept an argument and will do a search for commands that match that argument. (check-in: 209afb8d user: drh tags: trunk) | |
| 03:43 | Fix typos in the header comment for the sha1 and sha3 hash extensions in the ext/misc folder. (check-in: 4ed9d83a user: drh tags: trunk) | |
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2018-09-25
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| 19:08 | Version 3.25.2 (check-in: fb90e718 user: drh tags: release, version-3.25.2, branch-3.25) | |
| 01:38 | Bump the version number to 3.25.2. (check-in: 996d74f5 user: drh tags: branch-3.25) | |
| 01:35 | Fix a compilation issue in the "userauth" extension. Also fix a few test script errors that occur with SQLITE_USER_AUTHENTICATION=1 builds. (check-in: e7db5f59 user: drh tags: branch-3.25) | |
| 01:17 | Fix a problem building on Android with SQLITE_ENABLE_BATCH_ATOMIC_WRITE set. (check-in: b9ffa77c user: drh tags: branch-3.25) | |
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2018-09-24
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| 21:07 | Avoid incrementing the SQLITE_LOOKASIDE_MISS_SIZE stat before sqlite3_open() returns. Fix test script problem in lookaside.test. (check-in: 3bd94e43 user: drh tags: branch-3.25) | |
| 20:50 | Fix missing space in 'configure.ac' reported on the mailing list. (check-in: 4407e15a user: drh tags: branch-3.25) | |
| 20:48 | Add the "PRAGMA legacy_alter_table=ON" command to enable the pre-3.25.0 behavior of ALTER TABLE that does not modify the bodies of triggers or views or the WHERE clause of a partial index. Enable the legacy behavior by default when running the xRename method of virtual tables. (check-in: 31dc8b19 user: drh tags: branch-3.25) | |
| 19:41 | Allow a writable virtual table to have a schema with an INTEGER PRIMARY KEY and WITHOUT ROWID. This fixes ticket [f25d5ceebe1d710ff61a571e395356869d8272ef]. Test case in TH3. (check-in: 3139af99 user: drh tags: branch-3.25) | |
| 19:32 | Fix a faulty assert() in the validation logic for the LEFT JOIN strength reduction optimization. Problem found by OSSFuzz. (check-in: 8694c3d5 user: drh tags: branch-3.25) | |
| 19:21 | Fix the "sqlite3" command in the TCL interface so that it correctly returns an error if invoked with no arguments. (check-in: 8a82fcf0 user: drh tags: branch-3.25) | |
| 18:29 | Fix a problem with views that use window functions as part of complex expressions. (check-in: 1c0ecbbd user: drh tags: branch-3.25) | |
| 15:39 | Slightly smaller and faster alternative to [507d892c3a40a0bacbd47] that fixes a problem with views that use window function as part of complex expressions. (check-in: d7c816ae user: drh tags: trunk) | |
| 14:12 | • Edit [5a38d9281b4ad63b|5a38d928]: Edit check-in comment. (artifact: 7e8b3d0a user: drh) | |
| 14:11 | • Fixed ticket [f25d5cee]: INTEGER PRIMARY KEY WITHOUT ROWID virtual table crash plus 5 other changes (artifact: b01c7b39 user: drh) | |
| 14:10 | Allow a writable virtual table to have a schema with an INTEGER PRIMARY KEY and WITHOUT ROWID. This fixes ticket [f25d5ceebe1d710ff61a571e395356869d8272ef]. Test case in TH3. (check-in: 5a38d928 user: drh tags: trunk) | |
| 14:10 | • New ticket [f25d5cee] INTEGER PRIMARY KEY WITHOUT ROWID virtual table crash. (artifact: 0f28c7fc user: drh) | |
| 12:37 | Use compile-time options SQLITE_QUERY_PLANNER_LIMIT and SQLITE_QUERY_PLANNER_LIMIT_INCR to control the value for WhereLoopBuilder.iPlanLimit, rather than embedding magic numbers in the code. (check-in: 903e5018 user: drh tags: trunk) | |
| 10:47 | Increase the initial value of WhereLoopBuilder.iPlanLimit to 20K. Issue a warning if the iPlanLimit reaches zero. (check-in: 3dd35f51 user: drh tags: trunk) | |
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2018-09-23
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| 02:01 | Fix a faulty assert() in the validation logic for the LEFT JOIN strength reduction optimization. Problem found by OSSFuzz. (check-in: 2fd62fcc user: drh tags: trunk) | |
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2018-09-22
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| 15:05 | Enhance WhereLoopBuilder.iPlanLimit to handle a case involving the OR optimization discovered overnight by OSSFuzz. (check-in: 7b59930a user: drh tags: trunk) | |
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2018-09-21
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| 19:06 | Comment typo fixed. No code changes. (check-in: 7e68cdab user: drh tags: trunk) | |
| 18:43 | Put a limit counter on the query planner that restricts the number of index+constraint options that can be considered for each table in a join. This prevents certain pathological queries from taking up too much time in the query planner. (check-in: 8690b5a0 user: drh tags: trunk) | |
| 13:07 | Optimization to the OP_MakeRecord opcode makes speed-check.sh run about 1.1 million cycles faster, and results in a slightly smaller library. (check-in: d10e6362 user: drh tags: trunk) | |
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2018-09-20
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| 20:43 | Minor code simplification. (check-in: 22ae8a52 user: drh tags: trunk) | |
| 20:15 | Add the "PRAGMA legacy_alter_table=ON" command to enable the pre-3.25.0 behavior of ALTER TABLE that does not modify the bodies of triggers or views or the WHERE clause of a partial index. Enable the legacy behavior by default when running the xRename method of virtual tables. (check-in: 7edd26ed user: drh tags: trunk) | |
| 19:02 | Combine the Expr.pTab and Expr.pWin fields into a union named "y". Add a new EP_WinFunc property that is only true if Expr.y.pWin is a valid pointer. This reduces the size of the Expr object by 8 bytes, reduces the overall amount of code, and shaves over 1 million cycles off of the speed test. (check-in: ad130bb8 user: drh tags: trunk) | |
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2018-09-19
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| 20:14 | Reduce the size of Expr to 64-bytes. This works somewhat, but there are test failures. More importantly, the size reduction from 80- to 64-bytes has not lowered the schema memory usage, but it has made the code a little bigger and a little slower. So the initial evidence is that this Expr refactoring experiment is not working... (Leaf check-in: 24b0f66a user: drh tags: expr-simplify) | |
| 18:17 | A minor code simplification, saved in a branch for future reference. (Leaf check-in: 5e458f4a user: drh tags: minor-altertab-simplification) | |
| 17:24 | Fix an issue in virtual table handling associated with the new Expr.x.pRight field. (check-in: 8487f84a user: drh tags: expr-simplify) | |
| 16:35 | Make sure Expr.eX changes back to EX_None after Expr.x.pRight is set to NULL due to an OOM. (check-in: e4129cd3 user: drh tags: expr-simplify) | |
| 15:08 | Fix the "sqlite3" command in the TCL interface so that it correctly returns an error if invoked with no arguments. (check-in: 2034fa80 user: drh tags: trunk) | |
| 14:54 | Reduce the size of Expr from 80 to 72 bytes moving the pRight field inside the "x" union. This is an incremental check-in that still has issues. (check-in: 147c61a6 user: drh tags: expr-simplify) | |
| 11:59 | Make sure temporary Expr objects are fully initialized prior to sending them into sqlite3ExprCodeTemp(). (check-in: de02a1d9 user: drh tags: expr-simplify) | |
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2018-09-18
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| 21:35 | In the Expr object, the Expr.eX field determines what value is stored in the Expr.x union. This mostly works, but there are issues identified by valgrind. (check-in: 8849a463 user: drh tags: expr-simplify) | |
| 20:20 | Version 3.25.1 (check-in: 2ac9003d user: drh tags: release, version-3.25.1, branch-3.25) | |
| 18:08 | Merge all recent trunk enhancements. (check-in: 655f0654 user: drh tags: expr-simplify) | |
| 18:00 | • Edit [fc90a53de7ebca5d|fc90a53d]: Move to branch expr-simplify-branch1. Mark "Closed". (artifact: e40b7162 user: drh) | |
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2018-09-17
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| 20:47 | Further optimizations to the UPDATE logic to avoid making changes to partial indexes if none of the columns mentioned in the WHERE clause are modified by the UPDATE. (check-in: d1365a5b user: drh tags: trunk) | |
| 15:30 | • Fixed ticket [510cde27]: Endless loop on a query with window functions, ORDER BY, and LIMIT plus 5 other changes (artifact: c0db9c39 user: drh) | |
| 15:29 | • Fixed ticket [b41031ea]: ALTER TABLE returns an error on certain schemas plus 3 other changes (artifact: fea593b6 user: drh) | |
| 15:25 | Disable the ORDER BY LIMIT optimization in queries using window functions. This fixes a problem that was introduced by check-in [206720129ed2fa8875a286] which attempted to fix ticket [9936b2fa443fec03ff25f9]. This changes is a fix for the follow-in tocket [510cde277783b5fb5de628]. (check-in: 36c75fd5 user: drh tags: branch-3.25) | |
| 15:19 | Disable the ORDER BY LIMIT optimization in queries using window functions. This fixes a problem that was introduced by check-in [206720129ed2fa8875a286] which attempted to fix ticket [9936b2fa443fec03ff25f9]. This changes is a fix for the follow-in tocket [510cde277783b5fb5de628]. (check-in: c6c9585f user: drh tags: trunk) | |
| 14:28 | • New ticket [510cde27] Endless loop on a query with window functions, ORDER BY, and LIMIT. (artifact: 614870a8 user: drh) | |
| 14:18 | Fix a false-positive in the post-ALTER-TABLE schema verification logic that prevents ALTER TABLE from working if the table being altered has a trigger that references any column of a virtual table. Ticket [b41031ea2b537237]. (check-in: 5ce568c0 user: drh tags: branch-3.25) | |
| 14:13 | Fix a false-positive in the post-ALTER-TABLE schema verification logic that prevents ALTER TABLE from working if the table being altered has a trigger that references any column of a virtual table. Ticket [b41031ea2b537237]. (check-in: 84105ea4 user: drh tags: trunk) | |
| 13:55 | Restore an assert() that was present on trunk. (Closed-Leaf check-in: a7b572ca user: drh tags: tkt-b41031ea) | |
| 11:36 | Increase the version number to 3.25.1. (check-in: f3c8cfdb user: drh tags: branch-3.25) | |
| 00:15 | Add assert()s to the new code in the previous check-in. (check-in: b12f23a5 user: drh tags: tkt-b41031ea) | |
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2018-09-16
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| 23:27 | First proposed fix for the ALTER TABLE problem described by ticket [b41031ea2b5372378cb3d2d] (check-in: 05a9d129 user: drh tags: tkt-b41031ea) | |
| 20:33 | • Ticket [b41031ea] ALTER TABLE returns an error on certain schemas status still Open with 3 other changes (artifact: 90eeaef7 user: drh) ... 2 similar events omitted. | |
| 18:23 | Remove an unreachable branch from the index-on-expression optimization. (check-in: 2df2cf4f user: drh tags: trunk) | |
| 16:34 | Fix a memory leak in the explain extension. (check-in: d0c92b04 user: drh tags: trunk) | |
| 16:18 | Add the new "explain" virtual table in ext/misc. Use this virtual table for additional test cases for the optimization that avoids updating indexes on expressions when none of the columns changed by the UPDATE are in the expression. (check-in: 2404304c user: drh tags: trunk) | |
| 15:01 | Improved presentation on the new code that prevents unnecessary writes to expressions on indexes during an UPDATE when the expression does not reference any of the columns that are changing. (check-in: c9f04529 user: drh tags: trunk) | |
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2018-09-15
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| 21:43 | Increase the version number to 3.26.0 as we start the next development cycle. (check-in: 885f0f82 user: drh tags: trunk) | |
| 21:38 | Optimization: when doing an UPDATE on a table with indexes on an expression, do not update the expression indexes if they do not refer to any of the columns of the table being updated. (check-in: a71b1016 user: drh tags: trunk) | |
| 04:01 | Version 3.25.0 (check-in: b63af6c3 user: drh tags: trunk, release, version-3.25.0) | |
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2018-09-14
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| 17:42 | Fix minor typos in comments that get carried over into documentation. No changes to code. (check-in: 7921dd91 user: drh tags: trunk) | |
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2018-09-13
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| 17:07 | Make sure the %z optimization for printf() is not invoked if there has been a prior error (SQLITE_NOMEM or SQLITE_TOOBIG) associated with the same printf() call. (check-in: a2304a34 user: drh tags: trunk) | |
| 13:17 | Fix a requirement mark on a test script. No changes to code. (check-in: 628d5c0a user: drh tags: trunk) | |
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2018-09-12
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| 15:51 | Restrict the scope of internal-use functions in alter.c. (check-in: 4396914f user: drh tags: trunk) | |
| 14:28 | Improvements to the documentation for SQLITE_FCNTL_DATA_VERSION. No changes to code. (check-in: 27837624 user: drh tags: trunk) | |
| 00:21 | Fix a harmless compiler warning that arose from the ENABLE_CURSOR_HINTS fix of check-in [0af18674ca5b34e67e] (check-in: f578e62a user: drh tags: trunk) | |
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2018-09-11
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| 19:05 | Do not do the byte-by-byte modifications in the resetdb.test script if the reserved-byte flag in the DB header is non-zero, because in that case the bytes will be in the wrong place and the test won't work. (check-in: 0af18674 user: drh tags: trunk) | |
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2018-09-10
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| 17:21 | Add the ability for loadable extensions to access the new sqlite3_create_window_function() interface. (check-in: 3def6d8e user: drh tags: trunk) | |
| 14:49 | • Fixed ticket [9936b2fa]: Infinite loop due to the ORDER BY LIMIT optimization plus 3 other changes (artifact: 7fafa41f user: drh) | |
| 14:43 | New testcase() macros on virtual table xBestIndex logic. (check-in: 3bbd9c5f user: drh tags: trunk) | |
| 12:41 | • Fixed ticket [c94369ca]: Wrong answer due to the LIKE optimization plus 3 other changes (artifact: 0606ed8e user: drh) | |
| 12:40 | Fix the LIKE optimization so that it is disabled when the LHS of the expression does not have TEXT affinity and the RHS is the pattern '/%' or the RHS begins with the escape character. Fix for ticket [c94369cae9b561b1f996d0054b]. (check-in: f191431d user: drh tags: trunk) | |
| 10:16 | • Ticket [c94369ca] Wrong answer due to the LIKE optimization status still Open with 6 other changes (artifact: 9aeb839f user: drh) ... 1 similar event omitted. | |
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2018-09-08
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| 20:29 | Fix an unreachable branch in the new sqlite3WhereOrderByLimitOptLabel() function of the query planner. (check-in: 5a954533 user: drh tags: trunk) | |
| 20:09 | Fix multiple issues with the ORDER BY LIMIT optimization. This is the proposed resolution to ticket [9936b2fa443fec03ff25]. (check-in: 20672012 user: drh tags: trunk) | |
| 03:22 | • New ticket [9936b2fa] Infinite loop due to the ORDER BY LIMIT optimization. (artifact: 9b89fdd3 user: drh) | |
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2018-09-07
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| 19:12 | Remove a faulty ALWAYS() macro added by check-in [8fa254aa6329bdd0]. (check-in: fc47316e user: drh tags: trunk) | |
| 18:52 | Add assert() and ALWAYS() to identify two unreachable branches. (check-in: 8fa254aa user: drh tags: trunk) | |
| 11:08 | Fix an uninitialized variable in the OP_ParseSchema opcode that comes up only if the schema is corrupt. (check-in: 725808d4 user: drh tags: trunk) | |
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2018-09-06
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| 19:36 | Fix a harmless compiler warning in os_unix.c. (check-in: b9d1fb5d user: drh tags: trunk) | |
| 14:01 | Add the randomshape.tcl test-case generator script to the util subdirectory of the rtree extension. (check-in: 8f48991d user: drh tags: trunk) | |
| 11:14 | Fix excess memory usage in the JSON parser of GEOPOLY. (check-in: 9057e27e 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: 14c95515 user: drh tags: trunk) | |
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2018-09-05
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| 16:16 | Remove an old testcase() macro that is no longer valid. (check-in: e6287133 user: drh tags: trunk) | |
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2018-09-01
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| 20:02 | Fixes for harmless compiler warnings. (check-in: 41b8f38b user: drh tags: alter-table-rename-column) | |
| 16:55 | Fix some harmless compiler warnings and improve defenses against OOM errors. (check-in: 2e2cf992 user: drh tags: alter-table-rename-column) | |
| 15:55 | Merge fixes from the alter-table-rename-column branch that occurred after this branch separated from that one. (check-in: 22e785aa user: drh tags: alter-table-rename-table) | |
| 15:49 | Merge fixes and enhancements from trunk. (check-in: 589186c0 user: drh tags: alter-table-rename-table) | |