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17 check-ins using file src/vdbe.c version dede894c

2014-01-24
20:37
Select collation sequences for ORDER BY expressions attached to recursive CTEs in the same way as they are selected for other compound SELECT statements. (check-in: 9554519c user: dan tags: trunk)
17:03
Fix harmless compiler warnings in the Tcl interface. (check-in: 35bc81f5 user: mistachkin tags: trunk)
16:57
Add test cases for LIMIT and ORDER BY on recursive CTEs. (check-in: 67d6c42d user: dan tags: trunk)
16:36
Use an unsigned integer to accumulate the string hash. Avoids compiler warnings. (check-in: b1824344 user: drh tags: trunk)
15:42
Add a few more CTE test cases to closure.test. (check-in: 1b6405d9 user: drh tags: trunk)
14:37
Add test cases that compare the performance of the transitive_closure virtual table again common table expressions for walking a tree. (check-in: 9a23f020 user: drh tags: trunk)
11:16
Add test cases showing the use of ORDER BY on a recursive query to control depth-first versus breath-first search of a tree. (check-in: 83b0b291 user: drh tags: trunk)
2014-01-23
14:44
Modifications to test files to omit any tests that intentionally access out-of-bounds locations in clang -fsanitize=address builds. (check-in: f4a701d5 user: dan tags: trunk)
2014-01-22
19:23
Avoid an extra seek when inserting records into the epheremal index used to ensure that rows returned by UNION recursive queries are unique. (check-in: 72c4b3f0 user: dan tags: trunk)
18:31
Fix harmless compiler warnings. (check-in: dea2ca6a user: drh tags: trunk)
18:16
Change the WITH RECURSIVE implementation to use a queue instead of a pair of tables. Add support for ORDER BY, LIMIT, and OFFSET on recursive queries. (check-in: b6cea420 user: drh tags: trunk)
18:07
Add support for LIMIT and OFFSET in a recursive query. (Closed-Leaf check-in: 1945484e user: drh tags: cte-via-queue)
17:28
Get ORDER BY working for recursive queries. (check-in: 37b343b0 user: drh tags: cte-via-queue)
13:35
Add new SelectDest codes, SRT_Queue and SRT_DistQueue in anticipation of adding ORDER BY support on recursive queries. Factor out the recursive query code generator into a separate procedure. (check-in: 3eb5f9f8 user: drh tags: cte-via-queue)
10:22
Fix a typo in a comment. No changes to code or tests. (check-in: cceacc0e user: dan tags: cte-via-queue)
00:23
Remove an unnecessary parameter from selectInnerLoop(). Clean up comments. (check-in: 5e6c4a55 user: drh tags: cte-via-queue)
2014-01-21
22:25
Change the recursive common table expression algorithm to use a queue instead of a pair of tables. Runs about 25% faster on the sudoku solver query. The OP_SwapCursors opcode is no longer required. The current implementation uses just a fifo, but the plan is to change it into a queue that will support ORDER BY and LIMIT in a recursive query. (check-in: b2671e11 user: drh tags: cte-via-queue)