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path: root/src/backend/executor/nodeRecursiveunion.c
AgeCommit message (Collapse)Author
2016-01-02Update copyright for 2016Bruce Momjian
Backpatch certain files through 9.1
2015-01-06Update copyright for 2015Bruce Momjian
Backpatch certain files through 9.0
2014-05-06pgindent run for 9.4Bruce Momjian
This includes removing tabs after periods in C comments, which was applied to back branches, so this change should not effect backpatching.
2014-01-07Update copyright for 2014Bruce Momjian
Update all files in head, and files COPYRIGHT and legal.sgml in all back branches.
2013-01-01Update copyrights for 2013Bruce Momjian
Fully update git head, and update back branches in ./COPYRIGHT and legal.sgml files.
2012-01-01Update copyright notices for year 2012.Bruce Momjian
2011-04-11Clean up most -Wunused-but-set-variable warnings from gcc 4.6Peter Eisentraut
This warning is new in gcc 4.6 and part of -Wall. This patch cleans up most of the noise, but there are some still warnings that are trickier to remove.
2011-04-10pgindent run before PG 9.1 beta 1.Bruce Momjian
2011-01-01Stamp copyrights for year 2011.Bruce Momjian
2010-09-20Remove cvs keywords from all files.Magnus Hagander
2010-07-12Make NestLoop plan nodes pass outer-relation variables into their innerTom Lane
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.
2010-01-02Update copyright for the year 2010.Bruce Momjian
2009-09-27Remove no-longer-needed ExecCountSlots infrastructure.Tom Lane
2009-06-118.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef listBruce Momjian
provided by Andrew.
2009-01-01Update copyright for 2009.Bruce Momjian
2008-10-07Extend CTE patch to support recursive UNION (ie, without ALL). TheTom Lane
implementation uses an in-memory hash table, so it will poop out for very large recursive results ... but the performance characteristics of a sort-based implementation would be pretty unpleasant too.
2008-10-04Implement SQL-standard WITH clauses, including WITH RECURSIVE.Tom Lane
There are some unimplemented aspects: recursive queries must use UNION ALL (should allow UNION too), and we don't have SEARCH or CYCLE clauses. These might or might not get done for 8.4, but even without them it's a pretty useful feature. There are also a couple of small loose ends and definitional quibbles, which I'll send a memo about to pgsql-hackers shortly. But let's land the patch now so we can get on with other development. Yoshiyuki Asaba, with lots of help from Tatsuo Ishii and Tom Lane