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184,645 Commits 3,295 Branches 1,099 Tags
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59 Commits

Author SHA1 Message Date
Sergei Petrunia
be15858245 MDEV-9526: Compute Aggregate functions as window functions 
- Add temporary code: clone_read_record() clones READ_RECORD structure,
  as long as it is used for reading filesort() result that fits into
  memory.
- Add frame bounds for ROWS-type frames. ROWS n PRECEDING|FOLLOWING,
  ROWS UNBOUNDED PRECEDING|FOLLOWING, CURRENT ROW are supported.
- Add Item_sum_count::remove() which allows "streaming" computation
  of COUNT() over a moving frame.
 2016-02-18 01:25:26 +03:00
Vicențiu Ciorbaru
0c223a96c1 Fix review comments. 2016-02-16 00:43:57 +02:00
Vicențiu Ciorbaru
9a673e0a88 Implement DENSE_RANK function. 2016-02-16 00:22:12 +02:00
Sergei Petrunia
d8a20d4db7 Post-merge fixes. win.test passes but further cleanup is needed. 2016-02-14 21:00:05 +03:00
Sergei Petrunia
64ab10ffff Initial implementation of RANK() window function 2016-02-14 11:30:36 +03:00
Sergei Petrunia
30c9450af7 More comments 2016-02-14 11:30:14 +03:00
Sergei Petrunia
346c1a0ad0 Got sort-and-read single-pass window function computation to work 2016-02-14 11:29:53 +03:00
Sergei Petrunia
6399187ebc Added comments 2016-02-14 11:14:34 +03:00
Igor Babaev
9d9c60fb12 Initial patch for the implementation of window functions (MDEV-6115): 
- All parsing problems look like resolved
- Stub performing name resolution of window functions
in simplest queries has been added.
 2016-02-12 20:33:56 -08:00