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120 events for the month beginning 2013-10-01 by user drh
Following month ↑|
2013-10-31
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| 20:34 | Fix the Synopsis on OP_Concat. Added test_addop_breakpoint() during SQLITE_DEBUG. Enhanced sqlite3VdbeChangeToNoop() to omit the instruction if it is the most recent added. Continue to fix problems with UPDATE and WITHOUT ROWID. (check-in: 9b6d9e106a user: drh tags: omit-rowid) | |
| 17:38 | Fix issues with quering from an auxiliary index that must refer back to the PRIMARY KEY index of a WITHOUT ROWID table. (check-in: cff1f55c52 user: drh tags: omit-rowid) | |
| 15:37 | Improved comments and variable names in infrastructure routines of UPDATE, DELETE, and INSERT. (check-in: ad90e762e5 user: drh tags: omit-rowid) | |
| 12:13 | Moving UPDATE towards the iDataCur/iIdxCur representation. Still not working for WITHOUT ROWID, though. (check-in: deacbd21b5 user: drh tags: omit-rowid) | |
| 11:15 | Refactor the INSERT, DELETE, and UPDATE code generators to distinguish between the "data cursor" and the "first index cursor", which are no longer consecutive in the case of a WITHOUT ROWID table. (check-in: 1adfca6019 user: drh tags: omit-rowid) | |
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2013-10-30
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| 20:22 | Continue working to get UPDATE operational for WITHOUT ROWID tables. Fix PRAGMA integrity_check so that it works on WITHOUT ROWID tables. (check-in: 0d4fea7462 user: drh tags: omit-rowid) | |
| 15:52 | Make sure KeyInfo objects on multi-column indices of WITHOUT ROWID tables have the correct nField and nXField values. Also, add the SQLITE_ENABLE_MODULE_COMMENT compile-time option and the VdbeModuleComment() macro and use it to label entry and exit points of some key routines. (check-in: 6d9af6065f user: drh tags: omit-rowid) | |
| 13:46 | In the P4 column of the EXPLAIN listing, abbreviate "keyinfo" as just "k" and "BINARY" as just "B". (check-in: 72d45eb79b user: drh tags: omit-rowid) | |
| 12:43 | Enhance the timer in the shell to show wall-clock time in addition to user and kernel CPU time. (check-in: 908e2c2124 user: drh tags: trunk) | |
| 03:25 | Add the "Esri Spatially-Enabled Database" file format to the magic.txt file. (check-in: 8530a18f40 user: drh tags: trunk) | |
| 02:37 | Merge EXPLAIN enhancements from trunk. (check-in: 2fcac05607 user: drh tags: omit-rowid) | |
| 02:28 | Add the SQLITE_ENABLE_EXPLAIN_COMMENTS compile-time option to enable extra commentary in the EXPLAIN output. Formerly, this was only available with SQLITE_DEBUG. (check-in: e1a89b56f7 user: drh tags: trunk) | |
| 00:25 | Enhanced display of register ranges in the auxiliary comments added to EXPLAIN. (check-in: d6b0c39281 user: drh tags: trunk) | |
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2013-10-29
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| 20:47 | Import the automatic comment generating changes from trunk. (check-in: 8bb51da130 user: drh tags: omit-rowid) | |
| 20:46 | • Edit [5f310c6a22b8bb5f|5f310c6a22]: Edit check-in comment. (artifact: f6bd688f37 user: drh) | |
| 20:40 | Automatically generated comments on many VDBE opcodes when in SQLITE_DEBUG mode. Comments derive from the "Synopsis:" field added to each opcode definition in vdbe.c. (check-in: 5f310c6a22 user: drh tags: trunk) | |
| 16:14 | Improved comments on the constraint checking logic. (check-in: 141a38a7a6 user: drh tags: omit-rowid) | |
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2013-10-28
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| 22:47 | Merge all trunk changes since 3.8.1 into the sessions branch. (check-in: aa72ea8a00 user: drh tags: sessions) | |
| 22:39 | Merge recent fixes from trunk. (check-in: 9f8191d1d8 user: drh tags: omit-rowid) | |
| 22:33 | Formatting improvements to the WHERE-clause constraint display in the wheretrace debugging logic. (check-in: 3a9e3ed94b user: drh tags: trunk) | |
| 20:39 | • Fixed ticket [c620261b5b]: Incorrect result on query involving LEFT JOIN and transitive constraints plus 5 other changes (artifact: 566ec6c0bb user: drh) | |
| 20:38 | Add regression tests for ticket [c620261b5b5]. (check-in: 05a35b09b1 user: drh tags: trunk) | |
| 20:15 | Do not use transitive WHERE-clause constraints on LEFT JOINs. Fix for ticket [c620261b5b5dc]. (check-in: 9aac4e588c user: drh tags: trunk) | |
| 19:59 | More wheretrace debugging support: Show a listing of all WHERE clause terms (on wheretrace bit 0x100) and include important flags such as TERM_VIRTUAL, WO_EQUIV, and EP_FromJoin. (check-in: 92ccd70541 user: drh tags: trunk) | |
| 19:03 | Bug fix and enhancements to the improved wheretrace logic that shows the constraint expressions. (check-in: 10f125f5da user: drh tags: trunk) | |
| 15:50 | • New ticket [c620261b5b] Incorrect result on query involving LEFT JOIN and transitive constraints. (artifact: 06e06d2c96 user: drh) | |
| 14:34 | Improved "wheretrace" capabilities: Show the constraint expression if the wheretrace flag has the 0x100 bit set and if compiled with SQLITE_ENABLE_TREE_EXPLAIN. (check-in: 710a18ac79 user: drh tags: trunk) | |
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2013-10-26
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| 15:40 | Work on the UPDATE and INSERT logic. This is an incremental check-in so that can switch over to trunk to work on an unrelated issue there. (check-in: 086ec2a177 user: drh tags: omit-rowid) | |
| 13:36 | Replace the OP_IsUnique opcode with OP_NoConflict. This code simplification might be useful to move onto trunk even if this branch is never merged. (check-in: e6650e16dd user: drh tags: omit-rowid) | |
| 00:58 | Minor refactoring of variable names and fixes to comments in insert.c. (check-in: ae61a34378 user: drh tags: omit-rowid) | |
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2013-10-25
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| 19:17 | Progress toward getting UPDATE to work in WITHOUT ROWID tables. (check-in: e557b7d80f user: drh tags: omit-rowid) | |
| 14:46 | Basic DELETE operations now working on WITHOUT ROWID tables. (check-in: 9eafafa31c user: drh tags: omit-rowid) | |
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2013-10-24
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| 19:48 | Update the interface to the sqlite3GenerateRowDelete() utility so that it is able to handle WITHOUT ROWID tables. The implementation still needs to be completed. (check-in: 85daf51746 user: drh tags: omit-rowid) | |
| 15:20 | Add the ".open" command to the command-line shell. (check-in: 21eccb9194 user: drh tags: trunk) | |
| 14:16 | Delete PRIMARY KEY index entries last. Only construct the unique prefix of an index key when deleting entries from an index. (check-in: 0e56ba69f0 user: drh tags: omit-rowid) | |
| 11:55 | Remove an obsolete comment from the VDBE. No code changes. (check-in: 53bb070c85 user: drh tags: omit-rowid) | |
| 00:18 | Correctly handle queries that use secondary indices of WITHOUT ROWID tables. (check-in: d8bc859530 user: drh tags: omit-rowid) | |
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2013-10-23
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| 23:37 | Change the sqlite3OpenTable() utility to open the PRIMARY KEY index when reading a WITHOUT ROWID table. (check-in: 247f389930 user: drh tags: omit-rowid) | |
| 22:23 | Construct secondary indices on WITHOUT ROWID tables. (check-in: 2c028ddc85 user: drh tags: omit-rowid) | |
| 17:39 | Report an error when trying to resolve column name "rowid" in a WITHOUT ROWID table. (check-in: 36bcc9cb88 user: drh tags: omit-rowid) | |
| 16:03 | Get VACUUM and the xfer optimization working with WITHOUT ROWID. (check-in: 579815fff1 user: drh tags: omit-rowid) | |
| 13:30 | Some inserts and queries working for multi-column primary keys and WITHOUT ROWID. (check-in: b21d831b2a user: drh tags: omit-rowid) | |
| 01:57 | Some simple inserts and queries working on WITHOUT ROWID tables. (check-in: 3f8016dee2 user: drh tags: omit-rowid) | |
| 00:32 | Build internal data structures appropriately for WITHOUT ROWID tables. (check-in: 35a3606071 user: drh tags: omit-rowid) | |
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2013-10-22
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| 18:01 | The Index object now has nKeyCol and nColumn. nColumn is the total number of columns and nKeyCol is the number of key columns. Currently these always differ by one. Refactor aiColumn[] to be of type i16 instead of int. (check-in: a106ce86cd user: drh tags: omit-rowid) | |
| 14:28 | Add a procedure to handle the messy details of allocating an Index object from the heap. (check-in: 45efc94f9a user: drh tags: omit-rowid) | |
| 10:23 | Extra backwards-compatibility tests verify that UNIQUE and PRIMARY KEY indices are created in the correct order. Other backwards-compatibility tests already cover this, but it does not hurt to double up. (check-in: 5ca0ea2e9b user: drh tags: omit-rowid) | |
| 01:18 | • Edit [4e69dd5f9bc566e7|4e69dd5f9b]: Mark "Closed". (artifact: d91aa0d1fd user: drh) | |
| 01:18 | Previous refactor is not going to be helpful because implied indices must be created in the same order that they appear in the CREATE TABLE statement for backwards compatibility. This is a much smaller change to clean up a few loose ends. (check-in: 824b549f9b user: drh tags: omit-rowid) | |
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2013-10-21
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| 23:55 | Minor refactoring of the PRIMARY KEY parsing logic to facilitate enhancements. (Closed-Leaf check-in: 4e69dd5f9b user: drh tags: omit-rowid) | |
| 13:15 | Drop the mutex on the multiplexor before entering the xRead VFS call. (Closed-Leaf check-in: a00d2ed49c user: drh tags: multiplex-parallel-read) | |
| 02:14 | Simplification of the syntax: Merely append "WITHOUT rowid" to the end of the table definition. (check-in: 131cc6e152 user: drh tags: omit-rowid) | |
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2013-10-19
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| 23:31 | Experimental changes toward "index only" tables. Add the ability to specify options on CREATE TABLE statements using the WITH clause modeled after PostgreSQL and SQL Server. Only the "omit_rowid" option is currently recognized and that option is currently a no-op. (check-in: 0248ec5e6e user: drh tags: omit-rowid) | |
| 16:51 | Improved header comment with better instructions on the vfslog.c extension. (check-in: 4bd592c8f0 user: drh tags: trunk) | |
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2013-10-18
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| 20:03 | Add the SQLITE_FCNTL_TRACE file control and generate it for OP_Trace when compiled with SQLITE_USE_FCNTL_TRACE. Update vfslog.c to make use of the new file control. Also update vfslog.c to log UNLOCK events before the fact, rather than afterwards. (check-in: e801f35a96 user: drh tags: trunk) | |
| 17:42 | Further enhance the vfslog extension to record the number of freelist pages and the first freelist page in CHNGCTR-READ and CHNGCTR-WRITE records. (check-in: 08157524ca user: drh tags: trunk) | |
| 14:37 | In the vfslog extension for FILECONTROL records, show the pragma name for SQLITE_FCNTL_PRAGMAs and the requested size for SQLITE_FCNTL_SIZE_HINT. (check-in: f062969548 user: drh tags: trunk) | |
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2013-10-17
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| 12:57 | Version 3.8.1 (check-in: c78be6d786 user: drh tags: trunk, release, version-3.8.1) | |
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2013-10-16
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| 23:58 | Fix a typo in a requirements mark comment. No changes to code. (check-in: e5a439cfa5 user: drh tags: trunk) | |
| 14:32 | Merge the latest trunk changes. (check-in: 5806546822 user: drh tags: sessions) | |
| 11:31 | Fix memory and resource leaks for WinCE and Cygwin, and a compiler warning on windows with SQLITE_THREADSAFE=0. (check-in: 9905cea9d4 user: drh tags: trunk) | |
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2013-10-15
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| 14:29 | Fix an 8-byte alignment problem on the "crash test" harness (test code, not in the core) that causes problems on Sparc. (check-in: bcbc65030f user: drh tags: trunk) | |
| 14:10 | Merge the latest trunk changes into the sessions branch. This merge should fix the build for WinRT. (check-in: e111e4edf9 user: drh tags: sessions) | |
| 11:58 | Fix harmless macro redefinition warnings in the totype extension. (check-in: c9c1f8d670 user: drh tags: trunk) | |
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2013-10-14
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| 21:14 | Move the tointeger() and toreal() functions out of core and make them into a run-time loadable extension. (check-in: 9f66dd7e37 user: drh tags: trunk) | |
| 19:35 | Add implementations for the toInteger() and toReal() SQL functions. (check-in: a0f7cbc068 user: drh tags: trunk) | |
| 14:30 | Update the foreign_key_check pragma so that when a parent table is undefined it is treated as an empty table. (check-in: 208b259ad7 user: drh tags: trunk) | |
| 14:21 | Corrects to comments on the STAT4 implementation. (check-in: e06f74d32d user: drh tags: trunk) | |
| 13:21 | Make subroutines sampleCopy() and valueFromExpr() have file scope. (check-in: 1660efbe46 user: drh tags: trunk) | |
| 10:46 | Add a new application_id for GeoPackage version 1.0. (check-in: 98ddfe4571 user: drh tags: trunk) | |
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2013-10-12
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| 20:22 | Restore the index_list pragma back to its former operation. Create a new PRAGMA stats used to access the table and index widths and heights. (check-in: f0cf8c85dc user: drh tags: trunk) | |
| 13:16 | Add tests that demonstrate that PRAGMA defer_foreign_keys will reset to off at the conclusion of the next transaction. (check-in: 67e28a11de user: drh tags: trunk) | |
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2013-10-11
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| 23:37 | Identify requirements text in the SQLITE_CONFIG_ documentation. Fix a typo (a duplicated word) in part of that documentation. Add some requirements marks for DETACH to the test scripts. No code changes. (check-in: 1be0a3adab user: drh tags: trunk) | |
| 23:01 | Fix a harmless compiler warning in lemon.c. (check-in: 62959c0ce3 user: drh tags: trunk) | |
| 20:14 | Add requirements marks. No code changes. (check-in: 5e0d43ab55 user: drh tags: trunk) | |
| 16:35 | Additional test cases and requirements marks for the unlikely(), likelihood() and instr() functions. (check-in: 5f01cd36ee user: drh tags: trunk) | |
| 15:05 | Fix various harmless compiler warnings. Change the "warnings.sh" script to work with STAT4 instead of STAT3. (check-in: 7df06684ab user: drh tags: trunk) | |
| 13:27 | Make sure the sqlite3.h file occurs at the very top of the sqlite3.c amalgamation. (check-in: 03593817ab user: drh tags: trunk) | |
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2013-10-10
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| 20:15 | • Edit [de78250ad2a6210d|de78250ad2]: Mark "Closed". (artifact: 1fd220c6a9 user: drh) | |
| 20:13 | Synchronize with the trunk. (check-in: 136445ba02 user: drh tags: sessions) | |
| 17:33 | Add a rule to the main.mk makefile for building showdb. (check-in: fc5552da0d user: drh tags: trunk) | |
| 15:04 | Enhancements to the vfslog.c module to show all change-counter changes and to show the hostname and pid of the process that creates each log file. (check-in: af7abebeb1 user: drh tags: trunk) | |
| 13:41 | Another fix to the hash signature algorithm in vfslog.c. (check-in: 34212aa8c4 user: drh tags: trunk) | |
| 13:38 | Fix the hash signature algorithm in vfslog.c. Add a utility program to show the hash signatures for every page of a database file. (check-in: eaf4de13a6 user: drh tags: trunk) | |
| 12:38 | • Edit [e97d7d3044aa6c5e|e97d7d3044]: Mark "Closed". (artifact: 85086287ba user: drh) | |
| 12:38 | Estimate row sizes for tables and indices and use those estimates during query planning. Enhance the index_info pragma to show the estimated row sizes and to show the estimated row size for the main table as well. Allow an alternative row size estimate to be specified in the sqlite_stat1 table. (check-in: d27b88b8c2 user: drh tags: trunk) | |
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2013-10-09
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| 19:07 | Make sure the correct printf format is used for type tRowcnt regardless of whether 32-bit or 64-bit row counts are specified at compile-time. (Closed-Leaf check-in: e97d7d3044 user: drh tags: row-size-est) | |
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2013-10-08
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| 23:16 | Move a conditional inside of an #ifdef in order to make all branches reachable regardless of compile-time options used. (check-in: f7cc30d45b user: drh tags: row-size-est) | |
| 22:25 | Fix test cases for the new information in PRAGMA index_list. (check-in: dd03be1065 user: drh tags: row-size-est) | |
| 20:42 | Rollback some of the previous changes in the branch such that the estimated row sizes are now only used as a tie-breaker for index scans. (check-in: 65553ff34b user: drh tags: row-size-est) | |
| 20:01 | Use #ifdefs to omit unused code in the columnType() routine depending on compile-time options. (check-in: 3fd5e33217 user: drh tags: row-size-est) | |
| 18:40 | Further refinement of the idea of multiplying run-time cost estimates by the estimated row size. (check-in: 18bd6ba96d user: drh tags: row-size-est) | |
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2013-10-07
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| 17:32 | Multiply all cursor step cost estimates by the estimated size of the row in bytes, in order to get the query planner ot make use of estimated row sizes. This check-in uses magic numbers in a few places (for example, estimates of the size of output rows) and needs lots of refinement. Consider this a proof-of-concept only. (check-in: cb34cfe57c user: drh tags: row-size-est) | |
| 16:53 | Try to remember statistics from ANALYZE using LogEst instead of u64. (Leaf check-in: 8e78557a40 user: drh tags: log-stats) | |
| 10:48 | Merge bug fixes from trunk. (check-in: 1d7b2dc0ea user: drh tags: row-size-est) | |
| 00:36 | Restore the hexrekey pragma which was accidently deleted during the pragma refactoring. Make sure the hexkey and hexrekey pragmas do not overflow buffers with a over-length key. (check-in: 0aca31e151 user: drh tags: trunk) | |
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2013-10-06
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| 22:52 | Remove an incorrect debugging assert() that was accidently added during the STAT4 enhancement. (check-in: 2bb7f74bbd user: drh tags: trunk) | |
| 22:12 | Accept the sz=N parameter on table-only lines of sqlite_stat1. (check-in: e9e932aa40 user: drh tags: row-size-est) | |
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2013-10-05
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| 20:18 | Fix an issue in the test8.c test module that arises because of the change to PRAGMA index_list(). Remove an unused local variable. (check-in: 029430c503 user: drh tags: row-size-est) | |
| 19:18 | Completely remove the iScanRatio field. The PRAGMA index_list(TABLE) command shows the estimated row size in the forth column. It also generates a row for the table with an index name of NULL. The query planner still does not take row size estimates into account - that is the next step. (check-in: 8b4aa0c7a2 user: drh tags: row-size-est) | |
| 18:32 | Improvements to the LogEst command-line tool used to convert between ordinary numbers and the LogEst representation. (check-in: 5252aeb619 user: drh tags: row-size-est) | |
| 18:16 | Begin an experimental refactoring to estimate the average number of bytes in table and index rows and to use that information in query planner. Begin by renaming WhereCost to LogEst and making that type and its conversion routines available outside of where.c. (check-in: 66c4a251d6 user: drh tags: row-size-est) | |
| 02:56 | In the index_list pragma, make sure the "r" column is the same on output as it was on input in the sqlite_stat1 table. (Closed-Leaf check-in: de78250ad2 user: drh tags: index-scan-rate) | |
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2013-10-04
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| 20:39 | Merge trunk changes. (check-in: c6ac80ed8d user: drh tags: index-scan-rate) | |
| 18:29 | Further refinements of the index scanning speed logic. (check-in: e5d9371da9 user: drh tags: index-scan-rate) | |
| 15:58 | Fix test cases so that they work when the query planner uses index size estimates to determine whether or not to try an covering index scan. (check-in: 2f394de88f user: drh tags: index-scan-rate) | |
| 15:30 | Improved estimates of the relative speed of index scans based on declared datatypes of columns in the table. Add "r" column to PRAGMA index_info, showing the estimated relative scan rate. (check-in: 07462bb605 user: drh tags: index-scan-rate) | |
| 02:36 | Progress toward using the iScanRatio information on indices. Many tests are still failing. (check-in: 6c352edbba user: drh tags: index-scan-rate) | |
| 00:07 | • Fixed ticket [a5c8ed66ca]: Incorrect count(*) when partial indices exist plus 5 other changes (artifact: ec7c3f4ce7 user: drh) | |
| 00:00 | Make sure the count(*) optimization works correctly even when partial indices are present. Ticket [a5c8ed66cae]. (check-in: 9f2f4c0a50 user: drh tags: trunk) | |
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2013-10-03
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| 23:45 | • New ticket [a5c8ed66ca] Incorrect count(*) when partial indices exist. (artifact: e97050abae user: drh) | |
| 19:21 | Experimental branch allowing different postulated scan rates for each index. (check-in: d59d97b0a8 user: drh tags: index-scan-rate) | |
| 15:39 | The sqlite3FixInit() routine cannot fail. So change the return type from "int" to "void". (check-in: 500c5932fe user: drh tags: trunk) | |
| 14:08 | Rework the PRAGMA implementation to only call sqlite3ReadSchema() from a single place, based on a flag in the pragma table, rather than separately from each case which needs the schema. (check-in: 8338232a11 user: drh tags: trunk) | |
| 11:27 | Remove unnecessary memset() calls from test code. (check-in: eec3187bc6 user: drh tags: trunk) | |
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2013-10-02
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| 20:46 | In the lemon parser generator, change all hashes to unsigned to avoid potential problems with signed integer overflow. (check-in: 8d399a03de user: drh tags: trunk) | |
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2013-10-01
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| 20:29 | Bring some file format comments in btreeInt.h up to date. (check-in: 012d54d0d2 user: drh tags: trunk) | |
| 19:36 | Fix comments in the fast_vacuum.c demonstration program. (check-in: e0db7b38e1 user: drh tags: trunk) | |
| 19:02 | Add the "fast_vacuum.c" demonstration program to the tool/ subdirectgory. (check-in: 2b60320d57 user: drh tags: trunk) | |
| 15:30 | Change the ".dump" command in the command-line shell so that it COMMITs if there are database corruption errors but invokes ROLLBACK on any other kind of error. (check-in: 473234632f user: drh tags: trunk) | |