postgresql

Commit Graph

Author	SHA1	Message	Date
Tom Lane	8e8854daa2	Add some basic support for window frame clauses to the window-functions patch. This includes the ability to force the frame to cover the whole partition, and the ability to make the frame end exactly on the current row rather than its last ORDER BY peer. Supporting any more of the full SQL frame-clause syntax will require nontrivial hacking on the window aggregate code, so it'll have to wait for 8.5 or beyond.	2008-12-31 00:08:39 +00:00
Tom Lane	95b07bc7f5	Support window functions a la SQL:2008. Hitoshi Harada, with some kibitzing from Heikki and Tom.	2008-12-28 18:54:01 +00:00

Author

SHA1

Message

Date

Tom Lane

8e8854daa2

Add some basic support for window frame clauses to the window-functions

patch.  This includes the ability to force the frame to cover the whole
partition, and the ability to make the frame end exactly on the current row
rather than its last ORDER BY peer.  Supporting any more of the full SQL
frame-clause syntax will require nontrivial hacking on the window aggregate
code, so it'll have to wait for 8.5 or beyond.

2008-12-31 00:08:39 +00:00

Tom Lane

95b07bc7f5

Support window functions a la SQL:2008.

Hitoshi Harada, with some kibitzing from Heikki and Tom.

2008-12-28 18:54:01 +00:00

2 Commits