14 Commits (cecde97577fafddc6b3aa354b9b77a3a54b063a9)

Author	SHA1	Message	Date
Tom Lane	53e757689c	Make NestLoop plan nodes pass outer-relation variables into their inner ... relation using the general PARAM_EXEC executor parameter mechanism, rather than the ad-hoc kluge of passing the outer tuple down through ExecReScan. The previous method was hard to understand and could never be extended to handle parameters coming from multiple join levels. This patch doesn't change the set of possible plans nor have any significant performance effect, but it's necessary infrastructure for future generalization of the concept of an inner indexscan plan. ExecReScan's second parameter is now unused, so it's removed.	15 years ago
Peter Eisentraut	c248d17120	Message tuning	16 years ago
Bruce Momjian	65e806cba1	pgindent run for 9.0	16 years ago
Robert Haas	e26c539e9f	Wrap calls to SearchSysCache and related functions using macros. ... The purpose of this change is to eliminate the need for every caller of SearchSysCache, SearchSysCacheCopy, SearchSysCacheExists, GetSysCacheOid, and SearchSysCacheList to know the maximum number of allowable keys for a syscache entry (currently 4). This will make it far easier to increase the maximum number of keys in a future release should we choose to do so, and it makes the code shorter, too. Design and review by Tom Lane.	16 years ago
Tom Lane	ec4be2ee68	Extend the set of frame options supported for window functions. ... This patch allows the frame to start from CURRENT ROW (in either RANGE or ROWS mode), and it also adds support for ROWS n PRECEDING and ROWS n FOLLOWING start and end points. (RANGE value PRECEDING/FOLLOWING isn't there yet --- the grammar works, but that's all.) Hitoshi Harada, reviewed by Pavel Stehule	16 years ago
Bruce Momjian	0239800893	Update copyright for the year 2010.	16 years ago
Heikki Linnakangas	84d723b6ce	Previous fix for temporary file management broke returning a set from ... PL/pgSQL function within an exception handler. Make sure we use the right resource owner when we create the tuplestore to hold returned tuples. Simplify tuplestore API so that the caller doesn't need to be in the right memory context when calling tuplestore_put* functions. tuplestore.c automatically switches to the memory context used when the tuplestore was created. Tuplesort was already modified like this earlier. This patch also removes the now useless MemoryContextSwitch calls from callers. Report by Aleksei on pgsql-bugs on Dec 22 2009. Backpatch to 8.1, like the previous patch that broke this.	16 years ago
Tom Lane	421d7d8edb	Remove no-longer-needed ExecCountSlots infrastructure.	16 years ago
Tom Lane	82480e28f5	Fix things so that array_agg_finalfn does not modify or free its input ... ArrayBuildState, per trouble report from Merlin Moncure. By adopting this fix, we are essentially deciding that aggregate final-functions should not modify their inputs ever. Adjust documentation and comments to match that conclusion.	16 years ago
Bruce Momjian	d747140279	8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list ... provided by Andrew.	16 years ago
Tom Lane	25bf7f8b9b	Fix possible failures when a tuplestore switches from in-memory to on-disk ... mode while callers hold pointers to in-memory tuples. I reported this for the case of nodeWindowAgg's primary scan tuple, but inspection of the code shows that all of the calls in nodeWindowAgg and nodeCtescan are at risk. For the moment, fix it with a rather brute-force approach of copying whenever one of the at-risk callers requests a tuple. Later we might think of some sort of reference-count approach to reduce tuple copying.	17 years ago
Bruce Momjian	511db38ace	Update copyright for 2009.	17 years ago
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.	17 years ago
Tom Lane	95b07bc7f5	Support window functions a la SQL:2008. ... Hitoshi Harada, with some kibitzing from Heikki and Tom.	17 years ago