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126 events for the month beginning 2015-08-01 by user drh
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2015-08-31
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| 23:09 | Fix a bug in error reporting when a UNIQUE index on expressions fails its uniqueness test. (check-in: 5a2c0e90 user: drh tags: index-expr) | |
| 21:16 | Not only date/time functions, but also functions like sqlite_version() and changes() need to be prohibited from use inside of indexes. (check-in: 48713130 user: drh tags: index-expr) | |
| 19:38 | Always assume that indexed expressions can generate a NULL. Get indexed expressions working for the case of two or more expressions in the same index. (check-in: cc60321a user: drh tags: index-expr) | |
| 18:13 | Case should not be significant when comparing function names. (check-in: e2f1caf1 user: drh tags: index-expr) | |
| 17:34 | Make the distinction between truly deterministic functions and date/time functions which only return the same answer for a single query. Only truly deterministic functions are allowed in indexes. Add new expression index test cases. (check-in: c77554b5 user: drh tags: index-expr) | |
| 15:58 | Improved analysis and usage of indexed expressions in the query planner. (check-in: f8893696 user: drh tags: index-expr) | |
| 14:27 | Merge the latest enhancements from trunk. (check-in: 7bde6d4d user: drh tags: index-expr) | |
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2015-08-29
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| 19:41 | Enhance the json_extract() function so that if given multiple PATH arguments it will return a JSON array with all of the answers. Also update comments within the json1 extension to reflect stricter interpretation of JSON and PATH arguments. (check-in: 1da60c3d user: drh tags: trunk) | |
| 19:03 | Link the json1 extension into the command-line shell by default. (check-in: 2e8e239c user: drh tags: trunk) | |
| 18:30 | New test cases for the json1 extension. (check-in: daff4832 user: drh tags: trunk) | |
| 17:22 | Fix the build with -DSQLITE_OMIT_VIRTUALTABLE. (check-in: 752918de user: drh tags: trunk) | |
| 16:02 | Do not consider an empty string to be valid JSON. Add some additional JSON test cases. (check-in: fd19ff02 user: drh tags: trunk) | |
| 00:54 | Change the json1.c module so that it throws an error if any of the JSON selector paths are malformed. (check-in: 3aa0855f user: drh tags: trunk) | |
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2015-08-28
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| 20:07 | Back out the json_check() routine. Instead, throw an error if the input to a json function (other than json_valid()) is not valid JSON. (check-in: dc9ce7b1 user: drh tags: trunk) | |
| 15:35 | Fix a potential segfault in the VFS logic that checks for fail renames out from under SQLite. (check-in: 650111f6 user: drh tags: apple-osx) | |
| 13:27 | Disable the read-only WAL-mode database tests on the apple-osx branch because read-only WAL-mode databases are specifically disallowed by Apple-specific changes. (check-in: bd911496 user: drh tags: apple-osx) | |
| 03:48 | Add the json_check() function, which returns its argument if the argument is well-formed JSON or which throws an error otherwise. (check-in: 64abb65d user: drh tags: trunk) | |
| 03:33 | Enhance the json_insert(), json_replace(), and json_set() functions with the ability to add JSON instead of text if the argument is text and if the PATH begins with '$$' instead of just '$'. (check-in: 44f103d8 user: drh tags: trunk) | |
| 02:12 | Merge trunk enhancements into the apple-osx branch. Most tests works, but there are yet a few issues to be resolved. (check-in: da864658 user: drh tags: apple-osx) | |
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2015-08-27
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| 23:42 | Fix the OR-optimization so that it always ignores subplans that do not use an index. (check-in: cf452028 user: drh tags: index-expr) | |
| 23:18 | Fix the OR-optimization so that it always ignores subplans that do not use an index. (check-in: 66f92a16 user: drh tags: trunk) | |
| 20:33 | Fix EXPLAIN QUERY PLAN output for indexed-expressions. Fix another obscure fault in the WHERE term scanner. (check-in: 73d361ce user: drh tags: index-expr) | |
| 19:56 | Fix problems in the indexed-expression handling in the optimizer. (check-in: 03375017 user: drh tags: index-expr) | |
| 18:24 | Activate the ability to use expressions in indexes in a query. There are some test failures, but mostly this seems to work. (check-in: 42f93f58 user: drh tags: index-expr) | |
| 16:07 | Merge changes from trunk. (check-in: c80e9e8e user: drh tags: index-expr) | |
| 15:58 | Adjustments to the WHERE term scanning, to better handle scanning terms of an index. (check-in: 5611130a user: drh tags: index-expr) | |
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2015-08-26
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| 21:08 | Reduce the size of the WhereScan object by 24 bytes while also clarifying its operation. (check-in: cbc3c9a8 user: drh tags: trunk) | |
| 18:04 | Merge enhancements from trunk. (check-in: ec6ddb3d user: drh tags: index-expr) | |
| 14:01 | Evaluate expressions only once when the same expression is used in both the result set and in the ORDER BY clause. (check-in: c2f3bbad user: drh tags: trunk) | |
| 11:40 | Refactor With.a.zErr into With.a.zCteErr. No logic changes. (check-in: 58ba7363 user: drh tags: trunk) | |
| 11:34 | Update the TreeView output for compound SELECT statements so that all entries are shown vertically aligned rather than each successive entry being indented. (check-in: 65a89187 user: drh tags: trunk) | |
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2015-08-25
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| 19:42 | Move sqlite3IndexColumnAffinity() inside of SQLITE_ENABLE_STAT3_OR_STAT4. (check-in: b3732a4e user: drh tags: trunk) | |
| 19:24 | Merge trunk enhancements. (check-in: e8b02902 user: drh tags: index-expr) | |
| 19:20 | Use the sqlite3IndexColumnAffinity() routine to quickly and correctly find the affinity of an index column. (check-in: 1ee089a7 user: drh tags: trunk) | |
| 16:57 | Add code to maintain indexes with expression arguments across DELETE, INSERT, and UPDATE statements. Legacy tests pass, but the new code paths are still largely untested. The query planner currently makes no effort to use expression indexes. (check-in: efaabdb7 user: drh tags: index-expr) | |
| 00:34 | Fix a memory leak that might occur when compiling with SQLITE_OMIT_CHECK. (check-in: 8f1d9f1f user: drh tags: trunk) | |
| 00:27 | • Edit [0ad0f8d77d8f95ca|0ad0f8d7]: Edit check-in comment. (artifact: d6eff13a user: drh) | |
| 00:27 | Changes toward being able to process indexes on expressions. Not there yet - this check-in is just movement in that direction. Some tests are failing. (check-in: 0ad0f8d7 user: drh tags: index-expr) | |
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2015-08-24
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| 20:54 | Remove some redundant code: Call sqlite3ResolveExprListNames() rather than calling sqlite3ResolveExprNames() in a loop - in two places. (check-in: bdaf6646 user: drh tags: trunk) | |
| 20:21 | Enhances the parser so that it accepts arbitrary expressions for the arguments of an index, though the code generator still rejects everything other than simple column names. The sqlite3RestrictColumnListSyntax() routine is removed since that feature is now handled by the parser. (check-in: bed42116 user: drh tags: trunk) | |
| 17:42 | Enhance the CREATE VIEW syntax so that the names of columns of the view can be specified after the view name. (check-in: d794b34d user: drh tags: trunk) | |
| 15:39 | Disallow the use of COLLATE clauses and the ASC and DESC keywords within foreign key constraints and in the argument list to common table expressions. (check-in: 83cbc4d8 user: drh tags: trunk) | |
| 12:42 | Improvements to JSON string dequoting. (check-in: 196d66d3 user: drh tags: trunk) | |
| 02:32 | Fix corner-case problems in the type and atom columns of json_each() and json_tree(). (check-in: f0aba0e1 user: drh tags: trunk) | |
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2015-08-23
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| 20:48 | Fix a comment typo on sqlite3ExprAlloc(). No code changes. (check-in: 518d6220 user: drh tags: trunk) | |
| 20:44 | Fix minor glitches in the json1.c extension, mostly having to do with OOM behavior. (check-in: cc520414 user: drh tags: trunk) | |
| 02:42 | Fixes to json_each() and json_tree(). Improved json_parse() debugging output. (check-in: fc1b24f3 user: drh tags: trunk) | |
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2015-08-22
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| 19:39 | Add the json_valid() function to the json1.c extension. Fix various minor problems in the json1.c extension. (check-in: 380a9734 user: drh tags: trunk) | |
| 03:05 | Fix a couple instances of OOM handling in the json extension. (check-in: 213a6c5c user: drh tags: trunk) | |
| 01:32 | • Fixed ticket [c2a19d81]: Incorrect LEFT JOIN when FROM clause contains nested subqueries plus 5 other changes (artifact: 05ca3244 user: drh) | |
| 01:32 | Do not apply the WHERE-clause pushdown optimization to terms that originate in the ON or USING clause of a LEFT JOIN. Fix for ticket [c2a19d81652f40568c]. (check-in: 351bc22f user: drh tags: trunk) | |
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2015-08-21
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| 23:25 | • New ticket [c2a19d81] Incorrect LEFT JOIN when FROM clause contains nested subqueries. (artifact: 7b645a97 user: drh) | |
| 20:43 | Add extension functions for processing JSON. (check-in: 178f9a35 user: drh tags: trunk) | |
| 20:37 | Fixes for compiler warnings and errors in the makefiles. Rename the one test script to json101.test. (Closed-Leaf check-in: 9ff6ccde user: drh tags: json) | |
| 20:12 | Change the name of the json loadable extension to "json1.c", in anticipation of having future major changes to the interface. (check-in: d0d4bec9 user: drh tags: json) | |
| 20:02 | Add the fullkey column to both json_each() and json_tree(). (check-in: 15dd9943 user: drh tags: json) | |
| 19:56 | Merge header file fixes from trunk. (check-in: 7c2713e9 user: drh tags: json) | |
| 19:53 | Add a missing #define for sqlite3_vsnprintf to sqlite3ext.h. (check-in: da3c9df0 user: drh tags: trunk) | |
| 17:39 | Reserve the SQLITE_IOERR_VNODE error code name. (check-in: 53b593fc user: drh tags: trunk) | |
| 17:33 | Add the json_tree() virtual table. (check-in: 08c36e45 user: drh tags: json) | |
| 17:16 | Merge in trunk fixes for table-valued functions. (check-in: 67375f32 user: drh tags: json) | |
| 17:14 | Fix a corner-case bug in table-valued functions. Update the generate_series() virtual table to increase the performance estimate penalty for being underspecified. (check-in: 552bc9cb user: drh tags: trunk) | |
| 12:37 | Fix typo in comment. No changes to code. (check-in: 7b8d17dd user: drh tags: trunk) | |
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2015-08-20
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| 23:54 | Merge recent trunk enhancements, include table-valued functions. (check-in: e9196d56 user: drh tags: sessions) | |
| 23:45 | Merge recent enhancements from trunk, including table-valued expressions. (check-in: b9927c87 user: drh tags: cursor-hints) | |
| 23:39 | Merge the latest changes from trunk, including the table-valued function implementation. (check-in: 10c44432 user: drh tags: json) | |
| 23:33 | Compiler-warning fixes in the sqldiff.exe utility. (check-in: 64d13339 user: drh tags: trunk) | |
| 23:28 | Fix a couple C99-isms that cause compile errors on MSVC. (check-in: bc577fe6 user: drh tags: trunk) | |
| 23:21 | Fix corner-case memory management issues in table-valued functions. Change virtual table handling so that if xDestroy is missing the table is eponymous only even if xCreate is present. (check-in: 774e6a14 user: drh tags: trunk) | |
| 20:13 | Correctly handle empty function argument lists on table-valued functions. (check-in: a7acc787 user: drh tags: trunk) | |
| 19:55 | Add support for table-valued functions in the FROM clause implemented as virtual tables. (check-in: 9b718b06 user: drh tags: trunk) | |
| 18:28 | Prevent the series.c extension from loading on older versions of SQLite that do not support xCreate==NULL. (Closed-Leaf check-in: 3efc7942 user: drh tags: table-valued-functions) | |
| 17:18 | Make SQLITE_BUSY_SNAPSHOT and SQLITE_BUSY_RECOVERY retryable, just as a plain SQLITE_BUSY is. (check-in: fd13dd95 user: drh tags: trunk) | |
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2015-08-19
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| 23:02 | Fix the path lookup for objects so that it can handle quoted identifier names and non-alphanumerics in the identifier. (check-in: 87f58730 user: drh tags: json) | |
| 22:47 | Add the json_each(JSON,PATH) table-valued-function. (check-in: 3335ac17 user: drh tags: json) | |
| 19:26 | Merge the table-valued-function rowid fix. (check-in: a06a6392 user: drh tags: json) | |
| 19:01 | Fix eponymous virtual tables so that they do not automatically make the first column the rowid. Enhance the generate_series virtual table to support rowid. (check-in: a325a085 user: drh tags: table-valued-functions) | |
| 18:31 | Merge support for table-valued functions. (check-in: 96a5d44d user: drh tags: json) | |
| 18:19 | Improved comments on the generate_series virtual table. Test cases for ORDER BY rowid DESC with generate_series. (check-in: fef44c37 user: drh tags: table-valued-functions) | |
| 17:11 | A list of arguments following a table name translates into equality constraints against hidden columns in that table. (check-in: 40e12cfe user: drh tags: table-valued-functions) | |
| 15:20 | Minor refactor of the SrcList object so that it is able to hold the argument list to a table-valued-function in the FROM clause. (check-in: b9193761 user: drh tags: table-valued-functions) | |
| 13:54 | Virtual table modules with a null xCreate method act as eponymous-only modules - they cannot be used in a CREATE VIRTUAL TABLE statement. Add the series.c extension that implements a postgres-like generate_series virtual table to demonstrate this capability. (check-in: c58426db user: drh tags: table-valued-functions) | |
| 12:53 | • Edit [c1f43a7799a9298a|c1f43a77]: Move to branch table-valued-functions. (artifact: 9fd70f4f user: drh) | |
| 12:52 | Merge changes from trunk. (check-in: dddd792d user: drh tags: table-valued-functions) | |
| 12:45 | Simplification to error handling in addModuleArgument() in the virtual table processing. (check-in: c573b0a1 user: drh tags: trunk) | |
| 02:32 | Initial implementation of eponymous virtual table instances. (check-in: c1f43a77 user: drh tags: table-valued-functions) | |
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2015-08-18
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| 15:58 | Provide hints for all terms in a range constraint if there are any equality terms anywhere in the constraint. Range constraint terms are only omitted for a pure range constraint with no equality prefix. (check-in: b5897bc0 user: drh tags: cursor-hints) | |
| 12:59 | Comment clarification. No changes to code. (check-in: 71a96695 user: drh tags: json) | |
| 02:28 | Initial implementation of json_set() and json_insert(). (check-in: 4aa49656 user: drh tags: json) | |
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2015-08-17
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| 21:22 | Initial implementation of json_replace(). (check-in: 3c4bee65 user: drh tags: json) | |
| 20:14 | Add an initial implementation for json_remove(). (check-in: 2a826720 user: drh tags: json) | |
| 17:19 | Avoid generating hints using constraints that are also used to initialize the cursor, since presumably the cursor already knows about those constraints. (check-in: 142b048a user: drh tags: cursor-hints) | |
| 15:17 | Initial implementation for json_array_length(), json_extract(), and json_type(). (check-in: 39983204 user: drh tags: json) | |
| 11:28 | Abandon the JSONB format for now. (We may return to it in the future.) Add a function to render a JSON parse. (check-in: 9703c0aa user: drh tags: json) | |
| 10:28 | • Changes to wiki page "Bug Reports" (artifact: ae6ed384 user: drh) | |
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2015-08-15
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| 21:29 | Fix off-by-one error when parsing primitive JSON types "true", "false", and "null". (check-in: 42c15c1e user: drh tags: json) | |
| 21:25 | Add a prototype JSON parser. (check-in: 789ba487 user: drh tags: json) | |
| 16:32 | Minor fix to the display of oversized KeyInfo structures in the P4 operand of Open opcodes in EXPLAIN output. (check-in: f65a9b4a user: drh tags: trunk) | |
| 00:51 | Change the display of the P4 operand of CursorHint in EXPLAIN output to function notation. (check-in: bee73d42 user: drh tags: cursor-hints) | |
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2015-08-14
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| 23:57 | Always provide the BTREE_BULKLOAD hint, even when SQLITE_ENABLE_CURSOR_HINTS is not defined, as that hint gives a 4% performance increase. (check-in: 83a84435 user: drh tags: cursor-hints) | |
| 20:08 | Updated testing of cursor-hints. Remove the test_cursorhint.c file and associated logic in the core and do tests based purely on the newly enhanced EXPLAIN output. (check-in: bf383e66 user: drh tags: cursor-hints) | |
| 18:50 | Fix the cursor hint mechanism so that it does the right thing for indexed lookups. (check-in: 581e3d49 user: drh tags: cursor-hints) | |
| 15:05 | Refactor the sqlite3BtreeCursorHint() interface for improved maintainability. (check-in: fc3fb5cd user: drh tags: cursor-hints) | |
| 12:53 | Duplicate the output of releasetest.tcl into releasetest-out.txt (check-in: 5e06a9c1 user: drh tags: trunk) | |
| 01:03 | Fix the CursorHint so that it includes the scan boundary constraints. On the expression text for the CursorHint opcode, show rowid correctly. (check-in: f0d428d1 user: drh tags: cursor-hints) | |
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2015-08-13
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| 21:43 | Convert the hint expression of the CursorHint opcode into a string for display by EXPLAIN. (Leaf check-in: 12640cb2 user: drh tags: cursor-hints-displayP4) | |
| 21:38 | Fix a harmless compiler warning. (check-in: 608ab4ac user: drh tags: cursor-hints) | |
| 21:32 | Convert the hint expression of the CursorHint opcode into a string for display by EXPLAIN. (check-in: 20688471 user: drh tags: cursor-hints) | |
| 20:34 | Fix a bug in sqlite3ExprContainsSubquery(). (check-in: be254715 user: drh tags: cursor-hints) | |
| 20:07 | Merge in all the trunk changes from the previous year. This breaks the cursor-hint mechanism, but provides a baseline for trouble-shooting. (check-in: 82a7a61b user: drh tags: cursor-hints) | |
| 13:54 | Experimental code (untested) for a JSONB datatype. (check-in: e3596ac7 user: drh tags: json) | |
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2015-08-12
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| 17:23 | Add the json_object() function. (check-in: 414a95f3 user: drh tags: json) | |
| 16:49 | Begin adding an extension that provides JSON SQL functions. (check-in: dde8afdd user: drh tags: json) | |
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2015-08-11
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| 18:18 | Fix the retry mechanism on file locks. (check-in: 600df309 user: drh tags: apple-osx) | |
| 01:45 | Two more places where logging of freelist trunk pages is needed. (check-in: 56ff336e user: drh tags: experimentalIoLog) | |
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2015-08-10
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| 20:53 | Record when an allocated page is taken from the freelist trunk. (check-in: bb5d7782 user: drh tags: experimentalIoLog) | |
| 20:22 | Add the sqlite3_experimental_log_open() interface. This is for diagnostic use only and is not intended to ever go on trunk. (check-in: ac5d2e9d user: drh tags: experimentalIoLog) | |
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2015-08-08
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| 23:30 | Fix compiler warnings and remove unreachable code. (check-in: fd5608fb user: drh tags: trunk) | |
| 23:23 | Fix an assert() that was in the wrong spot. (Closed-Leaf check-in: 962b6cd6 user: drh tags: warnings) | |
| 22:48 | • Edit [be190fe7826d157f|be190fe7]: Move to branch warnings. (artifact: 8d92b57b user: drh) | |
| 22:47 | Fix compiler warnings and remove unreachable code. (check-in: be190fe7 user: drh tags: warnings) | |
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2015-08-07
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| 20:57 | Enhance the query planner so that it is able to use partial indexes that use AND-connected terms in the WHERE clause. (check-in: 06576590 user: drh tags: trunk) | |
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2015-08-06
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| 12:54 | increase the version number to 3.8.12 (check-in: e596a6b6 user: drh tags: trunk) | |
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2015-08-04
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| 19:06 | Improve the usage comment on sqlite3_analyzer: show the available switches. (check-in: 783f78e3 user: drh tags: trunk) | |
| 14:18 | In the sqlite3_analyzer.exe utility, show the depth of each btree and report the average fanout of indexes and WITHOUT ROWID tables. (check-in: cd997770 user: drh tags: trunk) | |
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2015-08-03
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| 13:44 | Allow a VIEW to reference undefined tables and functions when initially created. The error report is deferred until the VIEW is used. This allows views to be created before subviews and tables that the view references. (check-in: 70b57daf user: drh tags: trunk) | |