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postgres/src/include/executor/nodeGroup.h

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Postgres95 1.01 Distribution - Virgin Sources
30 years ago
/*-------------------------------------------------------------------------
*
Change my-function-name-- to my_function_name, and optimizer renames.
28 years ago
* nodeGroup.h
Massive commit to run PGINDENT on all *.c and *.h files.
29 years ago
* prototypes for nodeGroup.c
Postgres95 1.01 Distribution - Virgin Sources
30 years ago
*
*
Add: * Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files.
27 years ago
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
Postgres95 1.01 Distribution - Virgin Sources
30 years ago
*
Redesign DISTINCT ON as discussed in pgsql-sql 1/25/00: syntax is now 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...
27 years ago
* $Id: nodeGroup.h,v 1.15 2000/01/27 18:11:41 tgl Exp $
Postgres95 1.01 Distribution - Virgin Sources
30 years ago
*
*-------------------------------------------------------------------------
*/
Massive commit to run PGINDENT on all *.c and *.h files.
29 years ago
#ifndef NODEGROUP_H
#define NODEGROUP_H
Postgres95 1.01 Distribution - Virgin Sources
30 years ago
Cleanup up include files.
29 years ago
#include "nodes/plannodes.h"
Used modified version of indent that understands over 100 typedefs.
29 years ago
extern TupleTableSlot *ExecGroup(Group *node);
extern bool ExecInitGroup(Group *node, EState *estate, Plan *parent);
extern int ExecCountSlotsGroup(Group *node);
extern void ExecEndGroup(Group *node);
Patch for ReScan of Group.
28 years ago
extern void ExecReScanGroup(Group *node, ExprContext *exprCtxt, Plan *parent);
pgindent run over code.
27 years ago
Redesign DISTINCT ON as discussed in pgsql-sql 1/25/00: syntax is now 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...
27 years ago
extern bool execTuplesMatch(HeapTuple tuple1,
HeapTuple tuple2,
TupleDesc tupdesc,
int numCols,
AttrNumber *matchColIdx,
FmgrInfo *eqfunctions);
extern FmgrInfo *execTuplesMatchPrepare(TupleDesc tupdesc,
int numCols,
AttrNumber *matchColIdx);
OK, folks, here is the pgindent output.
28 years ago
#endif /* NODEGROUP_H */