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38 check-ins tagged with "window-functions"

2019-03-22
13:56
Fix a problem with a window function in a correlated sub-query where at least one reference to the outer SELECT appears in a FROM clause sub-select. Closed-Leaf check-in: 9aca86f9 user: dan tags: window-functions
2019-03-21
13:51
Remove assert() statements based on the counter-factual proposition that 0 is not a valid cursor number. check-in: c7b33618 user: dan tags: window-functions
2019-03-19
19:39
Add further tests to window8.test. check-in: ec7e224f user: dan tags: window-functions
19:19
Fix a problem with EXCLUDE clauses on window frames with no ORDER BY. check-in: e0255063 user: dan tags: window-functions
17:45
Add tests to ensure that the window functions implementation is not generating code for unnecessary sorts. check-in: e195948a user: dan tags: window-functions
16:49
Add missing VdbeCoverage() macros to new code in window.c. check-in: 4f9b93e6 user: dan tags: window-functions
11:56
Revert the OP_MustBeInt opcode implementation on this branch so that it again matches trunk. The extra functionality is no longer required. check-in: c02f77b1 user: dan tags: window-functions
11:17
Update this branch with latest trunk changes. check-in: 98cc2659 user: dan tags: window-functions
06:40
Ensure that all the new window-function keywords can still be used as SQL identifiers. check-in: a6d61dfd user: dan tags: window-functions
2019-03-18
21:19
Add further tests for new window function functionality. check-in: 1fbddf01 user: dan tags: window-functions
18:55
Always evaluate window functions using the alternative path usually only used by EXCLUDE frames if the SQLITE_QueryFlattener test flag is set. check-in: 2879a691 user: dan tags: window-functions
16:51
Fixes for RANGE windows and NULL values. check-in: 723c84be user: dan tags: window-functions
2019-03-16
20:29
Fix problems with RANGE windows and string, blob and NULL values. check-in: cebe09e1 user: dan tags: window-functions
10:15
In order to identify the first row of each partition, check if the rowid in the ephemeral table is 1 instead of using a dedicated flag register. check-in: f2d5f7a2 user: dan tags: window-functions
2019-03-15
20:46
Implement the EXCLUDE clause for window frames. check-in: 9b43c3ee user: dan tags: window-functions
2019-03-14
20:53
Parse EXCLUDE clauses in window frames. They do not yet work. check-in: d03c7533 user: dan tags: window-functions
16:36
Add things to this branch that will be required to support the EXCLUDE clause. check-in: 7d66cd20 user: dan tags: window-functions
2019-03-13
17:31
Merge latest trunk changes into this branch. check-in: 0b904517 user: dan tags: window-functions
17:20
Avoid allocating excessive registers for the PARTITION BY expressions when processing window functions. check-in: 180be266 user: dan tags: window-functions
15:29
Remove rows from the ephemeral table used by window functions once they are no longer required. check-in: 6ad55319 user: dan tags: window-functions
08:28
Minor optimization in sqlite3WindowCodeStep(). check-in: b1322ffb user: dan tags: window-functions
2019-03-12
18:28
Allow real values to be used in PRECEDING and FOLLOWING expressions for RANGE window frames. check-in: 25ff7091 user: dan tags: window-functions
15:21
Expand on header comment for sqlite3WindowCodeStep(). Further simplify the implementation of the same. check-in: 5129bcc9 user: dan tags: window-functions
2019-03-11
19:50
Remove "cache mode" from the window frame code generator. Handle the same cases by editing the window frame specification itself. check-in: 08126353 user: dan tags: window-functions
18:17
Simplify the windows frame code some. Add a comment explaining some of the VM code generated by sqlite3WindowCodeStep(). check-in: 6bd1a079 user: dan tags: window-functions
11:12
Fix problems with "RANGE ... ORDER BY <expr> DESC" window frames. check-in: e7bced73 user: dan tags: window-functions
2019-03-09
20:49
Add support for RANGE window frames. Some cases still do not work. check-in: ffc32b24 user: dan tags: window-functions
07:38
Merge latest trunk changes into this branch. check-in: 53ea550c user: dan tags: window-functions
2019-03-08
20:57
Add simple tests for GROUPS window frames. check-in: 2872702d user: dan tags: window-functions
20:02
Finish consolidation of window frame code. Add untested support for GROUPS frames. check-in: 954bf369 user: dan tags: window-functions
2019-03-07
20:47
Fix other "ROWS BETWEEN" cases on this branch. check-in: a5f68f66 user: dan tags: window-functions
19:26
Modify new window functions function so that cursors are stepped immediately after each operation, instead of immediately before. check-in: 093d2b25 user: dan tags: window-functions
2019-03-06
21:04
Simplify the window function code generator some more. check-in: 45cbd3b4 user: dan tags: window-functions
17:12
Improvements to the way built-in window functions are handled. check-in: e8eee566 user: dan tags: window-functions
2019-03-05
19:29
Extend windowCodeStep() to handle any ROWS PRECEDING/FOLLOWING frame specification. check-in: af0ea136 user: dan tags: window-functions
2019-03-04
21:08
Merge trunk changes into this branch. check-in: 9b4d561f user: dan tags: window-functions
21:07
Support some "ROWS BETWEEN N PRECEDING AND M FOLLOWING" window functions without caching entire partitions. check-in: e7a91f12 user: dan tags: window-functions
2019-02-16
17:27
Add support for chaining of WINDOW definitions. check-in: c155125f user: dan tags: window-functions