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path: root/src/backend/executor/nodeUnique.c
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* Pgindent run for 8.0.Bruce Momjian2004-08-29
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* Update copyright to 2004.Bruce Momjian2004-08-29
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* Update obsolete comment.Tom Lane2004-03-02
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* $Header: -> $PostgreSQL Changes ...PostgreSQL Daemon2003-11-29
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* Update copyrights to 2003.Bruce Momjian2003-08-04
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* pgindent run.Bruce Momjian2003-08-04
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* Fix nodeUnique to behave correctly when reversing direction after reachingTom Lane2003-02-02
| | | | | either end of subplan results. This prevents misbehavior of cursors on SELECT DISTINCT ... queries. Per bug report 1-Feb-02.
* Create a new file executor/execGrouping.c to centralize utility routinesTom Lane2003-01-10
| | | | shared by nodeGroup, nodeAgg, and soon nodeSubplan.
* Revise executor APIs so that all per-query state structure is built inTom Lane2002-12-15
| | | | | | a per-query memory context created by CreateExecutorState --- and destroyed by FreeExecutorState. This provides a final solution to the longstanding problem of memory leaked by various ExecEndNode calls.
* Phase 1 of read-only-plans project: cause executor state nodes to pointTom Lane2002-12-05
| | | | | | | | | | to plan nodes, not vice-versa. All executor state nodes now inherit from struct PlanState. Copying of plan trees has been simplified by not storing a list of SubPlans in Plan nodes (eliminating duplicate links). The executor still needs such a list, but it can build it during ExecutorStart since it has to scan the plan tree anyway. No initdb forced since no stored-on-disk structures changed, but you will need a full recompile because of node-numbering changes.
* Update copyright to 2002.Bruce Momjian2002-06-20
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* pgindent run on all C files. Java run to follow. initdb/regressionBruce Momjian2001-10-25
| | | | tests pass.
* Remove dashes in comments that don't need them, rewrap with pgindent.Bruce Momjian2001-03-22
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* Change Copyright from PostgreSQL, Inc to PostgreSQL Global Development Group.Bruce Momjian2001-01-24
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* First stage of reclaiming memory in executor by resetting short-termTom Lane2000-07-12
| | | | | | memory contexts. Currently, only leaks in expressions executed as quals or projections are handled. Clean up some old dead cruft in executor while at it --- unused fields in state nodes, that sort of thing.
* Remove unused include files. Do not touch /port or includes used by defines.Bruce Momjian2000-05-30
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* Ye-old pgindent run. Same 4-space tabs.Bruce Momjian2000-04-12
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* Redesign DISTINCT ON as discussed in pgsql-sql 1/25/00: syntax is nowTom Lane2000-01-27
| | | | | | | | | | | | | SELECT DISTINCT ON (expr [, expr ...]) targetlist ... and there is a check to make sure that the user didn't specify an ORDER BY that's incompatible with the DISTINCT operation. Reimplement nodeUnique and nodeGroup to use the proper datatype-specific equality function for each column being compared --- they used to do bitwise comparisons or convert the data to text strings and strcmp(). (To add insult to injury, they'd look up the conversion functions once for each tuple...) Parse/plan representation of DISTINCT is now a list of SortClause nodes. initdb forced by querytree change...
* Add:Bruce Momjian2000-01-26
| | | | | | * Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files.
* New NameStr macro to convert Name to Str. No need for var.data anymore.Bruce Momjian1999-11-07
| | | | | | Fewer calls to nameout. Better use of RelationGetRelationName.
* Move some system includes into c.h, and remove duplicates.Bruce Momjian1999-07-17
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* Final cleanup.Bruce Momjian1999-07-16
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* Update #include cleanupsBruce Momjian1999-07-16
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* Remove unused #includes in *.c files.Bruce Momjian1999-07-15
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* Change my-function-name-- to my_function_name, and optimizer renames.Bruce Momjian1999-02-13
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* Replace typtoout() and gettypelem() with a single routine,Tom Lane1999-01-24
| | | | | | so that fetching an attribute value needs only one SearchSysCacheTuple call instead of two redundant searches. This speeds up a large SELECT by about ten percent, and probably will help GROUP BY and SELECT DISTINCT too.
* New HeapTuple structure/interface.Vadim B. Mikheev1998-11-27
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* pgindent run before 6.3 release, with Thomas' requested changes.Bruce Momjian1998-02-26
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* ExecReScan for Unique & Sort nodes.Vadim B. Mikheev1998-02-23
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* New nodeGroup.c code uses own copy of first tuple in a group.Vadim B. Mikheev1998-02-18
| | | | Free memory after comparison in nodeUnique.c
* Pass around typmod as int16.Bruce Momjian1998-02-10
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* Pass attypmod through to executor by adding to Var and Resdom.Bruce Momjian1998-02-10
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* Inline fastgetattr and others so data access does not use functionBruce Momjian1998-01-31
| | | | calls.
* heapattr functions now return a Datum, not char *.Bruce Momjian1997-09-12
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* Used modified version of indent that understands over 100 typedefs.Bruce Momjian1997-09-08
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* Another PGINDENT run that changes variable indenting and case label ↵Bruce Momjian1997-09-08
| | | | indenting. Also static variable indenting.
* Massive commit to run PGINDENT on all *.c and *.h files.Bruce Momjian1997-09-07
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* Inlined heap_getattr().Bruce Momjian1997-08-26
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* include sem.h added, include string.h neede, from Erik Bertelsen for UltrixBruce Momjian1997-01-10
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* More compile cleanupsBruce Momjian1996-11-08
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* Compile and warning cleanupBruce Momjian1996-11-08
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* add #include "postgres.h", as required by all .c filesMarc G. Fournier1996-10-31
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* Fixes:Marc G. Fournier1996-07-19
| | | | | | 'select distinct on' causes backend to crash submitted by: Chris Dunlop chris@onthe.net.au
* Postgres95 1.01 Distribution - Virgin SourcesPG95-1_01Marc G. Fournier1996-07-09
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