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50 descendants of a51d8c9249643648

2013-06-10
12:17
Add a high-speed bypass for the NGQP for the common case of a simply query with quality constraints that outputs a single row. (check-in: 8d1ba30921 user: drh tags: nextgen-query-plan-exp)
12:15
Minor problems in the high-speed NGQP fixed. (Closed-Leaf check-in: 20eeccf1f2 user: drh tags: nextgen-query-plan-fast)
2013-06-09
17:21
High-speed version of NGQP. Still has some minor problems. (check-in: db2415fa67 user: drh tags: nextgen-query-plan-fast)
2013-06-07
02:04
Must faster computation of estimated logarithm. (check-in: dfbca3acae user: drh tags: nextgen-query-plan-exp)
00:29
Further prepare-time performance improvements. (check-in: 02741d177b user: drh tags: nextgen-query-plan-exp)
2013-06-06
23:44
Performance improvements. (check-in: 9f8e84ab98 user: drh tags: nextgen-query-plan-exp)
23:02
Improved management of the space to hold WhereLoop.aLTerm[]. (check-in: d4141ecbea user: drh tags: nextgen-query-plan-exp)
19:25
Remove some commented-out code that was mistakenly left in the previous check-in. (check-in: b4a5dbad36 user: drh tags: nextgen-query-plan-exp)
19:16
Clean up and reorganize the elements of the various objects in the analysis tree for the NGQP. (check-in: bfc76ae1e9 user: drh tags: nextgen-query-plan-exp)
2013-06-05
23:39
Move the definitions of the WhereLevel and WhereInfo objects out of sqliteInt.h and into where.c. This will facilitate future refactoring of the internal query planner data structures. (check-in: 1574653b9b user: drh tags: nextgen-query-plan-exp)
17:53
Performance improvement for the OR-clause analysis in the NGQP. (check-in: 9b1c4954e4 user: drh tags: nextgen-query-plan-exp)
16:19
Minor performance tuning of the NGQP. (check-in: cbef38c2d1 user: drh tags: nextgen-query-plan-exp)
12:47
Performance tweak to whereLoopInsert(). (check-in: 1c4a78807b user: drh tags: nextgen-query-plan-exp)
12:18
Add a test case contributed on the mailing list that works in NGQP but fails in legacy. (check-in: 96afe50866 user: drh tags: nextgen-query-plan-exp)
2013-06-04
23:40
Update some variable names and comments in the ORDER BY optimizer. Fix a bug in the ORDER BY optimizer dealing with IS NULL constraints. Updates to test cases. (check-in: cf96eb5945 user: drh tags: nextgen-query-plan-exp)
18:27
Restore the PRAGMA reverse_unordered_selects behavior. (check-in: f49cd6c4e7 user: drh tags: nextgen-query-plan-exp)
18:03
Get the index-only optimization working for OR queries. (check-in: 774d5ff857 user: drh tags: nextgen-query-plan-exp)
15:31
Test case updates. (check-in: 0360fec7c0 user: drh tags: nextgen-query-plan-exp)
13:37
Better determination of when an index is UNIQUE. (check-in: 63fd025ad9 user: drh tags: nextgen-query-plan-exp)
13:07
Increase the estimated full-scan cost for an FTS3 table. (check-in: 8d9f29f847 user: drh tags: nextgen-query-plan-exp)
12:58
Fix a display issue with EXPLAIN QUERY PLAN. (check-in: ff2fa40755 user: drh tags: nextgen-query-plan-exp)
12:42
Refactor the ORDER BY optimizer in the NGQP so that it is easier to maintain and so that it can support optimizing out GROUP BY and DISTINCT clauses. (check-in: e605c468e3 user: drh tags: nextgen-query-plan-exp)
2013-06-03
22:08
Remove more vestiges of sqlite_query_plan from the test cases. (check-in: eb27086e8a user: drh tags: nextgen-query-plan-exp)
21:25
Adjust the xBestIndex methods on both the fuzzer and transitive_closure virtual tables so that an unused MATCH operator gets a really large cost. Remove ambiguities from the fuzzer test cases. (check-in: e2c1af78b6 user: drh tags: nextgen-query-plan-exp)
20:46
Pull in recent trunk changes. Fix the ORDER BY optimizer so that it is better able to deal with COLLATE clauses. Clean up ambiguities in the descidx1.test script. (check-in: 6bc71dfcf0 user: drh tags: nextgen-query-plan-exp)
19:17
Do not use an index fullscan for an UPDATE or DELETE or if disabled by sqlite3_test_control() or sqlite3_config(). (check-in: fabb21854e user: drh tags: nextgen-query-plan-exp)
19:01
Resolve ambiguities in test cases in collate2.test. (check-in: dcbbcb2e6c user: drh tags: nextgen-query-plan-exp)
18:50
Fix a bug in the transitive_closure virtual table that NGQP exposes. Update between.test module to avoid using sqlite_query_plan. (check-in: aa66b86420 user: drh tags: nextgen-query-plan-exp)
18:14
Fix EXPLAIN QUERY PLAN row counts for the rtree virtual table tests. (check-in: 15328987cc user: drh tags: nextgen-query-plan-exp)
17:35
Update the NGQP to make use of STAT3 information if it is available. (check-in: ff134e6ee9 user: drh tags: nextgen-query-plan-exp)
16:56
Honor the orderByConsumed boolean returned from virtual table query planner. (check-in: aaf7f5896d user: drh tags: nextgen-query-plan-exp)
16:03
Fix to the logic that disables constraints on virtual tables. (check-in: 62d382406b user: drh tags: nextgen-query-plan-exp)
15:34
Fix an issue that was causing ORDER BY DESC to come out in ascending order. (check-in: 0298401240 user: drh tags: nextgen-query-plan-exp)
15:24
Virtual tables now always report 25 rows instead of 0 rows in the EXPLAIN QUERY PLAN output. Adjust tests accordingly. (check-in: 7d91f68881 user: drh tags: nextgen-query-plan-exp)
15:07
Set the WHERE_UNIQUE flag on loops that can only run once. (check-in: 510f4d8ecf user: drh tags: nextgen-query-plan-exp)
14:15
Add test cases to verify that ticket [bc1aea7b725f2761] has been fixed in the NGQP. (check-in: 9b97af94ae user: drh tags: nextgen-query-plan-exp)
2013-05-31
20:43
The NGQP might not find a solution if INDEXED BY constraints on the query are set wrong. If that is the case, print a "no query solution" error and abort before trying to use the non-existant solution. (check-in: 42511a7e12 user: drh tags: nextgen-query-plan-exp)
20:28
Do not search using ON clause constraints of LEFT JOINs to the right of the table. (check-in: 723f901a63 user: drh tags: nextgen-query-plan-exp)
20:00
Make sure a unique cursor number is allocated for automatic indices. (check-in: 433d1aecd3 user: drh tags: nextgen-query-plan-exp)
19:14
Do not attempt to generate code in the NGQP if there have been prior errors, since with prior errors some of the expressions might not be fully named resolved. (check-in: 665e4291c6 user: drh tags: nextgen-query-plan-exp)
18:20
Fix a problem with code generation on LEFT JOIN of tables without an index. (check-in: 0b1bee92a0 user: drh tags: nextgen-query-plan-exp)
18:13
Another virtual table fix in NGQP. (check-in: 2f2ce41677 user: drh tags: nextgen-query-plan-exp)
17:55
Fix problems in the virtual table logic for NGQP. (check-in: 23af28e24b user: drh tags: nextgen-query-plan-exp)
15:50
Remove the definitions of objects that are no longer used: WhereCost, WherePlan, and WhereBestIdx. (check-in: 816f8add7e user: drh tags: nextgen-query-plan-exp)
15:18
Allow tracing of whereLoopInsert() when the 0x8 bit is set on ".wheretrace". Remove the use of sqlite_query_plan from where2.test. Fix a bug in the code generator for OR clause optimizations. (check-in: 707f032326 user: drh tags: nextgen-query-plan-exp)
14:31
Enhance the shell to provide more flexibility when entering numeric arguments on dot-commands. In particular, allow hex arguments to .wheretrace. (check-in: b9578c371e user: drh tags: nextgen-query-plan-exp)
13:36
Futher enhancements to the ORDER BY optimizer. (check-in: d8efa5f8b6 user: drh tags: nextgen-query-plan-exp)
12:43
Improved detection of unnecessary ORDER BY clauses. (check-in: 58805eb36b user: drh tags: nextgen-query-plan-exp)
11:57
Fix the constructAutomaticIndex() routine so that it works with NGQP. (check-in: 5e1e613995 user: drh tags: nextgen-query-plan-exp)
2013-05-30
23:21
Improvements to the ORDER BY suppressor in the NGQP. (check-in: 24a2e9ddce user: drh tags: nextgen-query-plan-exp)
22:27
Incremental check-in with various NGQP fixes. Many tests still fail. (check-in: a51d8c9249 user: drh tags: nextgen-query-plan-exp)