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postgres/src/include/executor/nodeLimit.h

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Re-implement LIMIT/OFFSET as a plan node type, instead of a hack in ExecutorRun. This allows LIMIT to work in a view. Also, LIMIT in a cursor declaration will behave in a reasonable fashion, whereas before it was overridden by the FETCH count.
26 years ago
/*-------------------------------------------------------------------------
*
* nodeLimit.h
*
*
*
Change Copyright from PostgreSQL, Inc to PostgreSQL Global Development Group.
25 years ago
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
Re-implement LIMIT/OFFSET as a plan node type, instead of a hack in ExecutorRun. This allows LIMIT to work in a view. Also, LIMIT in a cursor declaration will behave in a reasonable fashion, whereas before it was overridden by the FETCH count.
26 years ago
* Portions Copyright (c) 1994, Regents of the University of California
*
Another pgindent run. Fixes enum indenting, and improves #endif spacing. Also adds space for one-line comments.
25 years ago
* $Id: nodeLimit.h,v 1.4 2001/10/28 06:26:06 momjian Exp $
Re-implement LIMIT/OFFSET as a plan node type, instead of a hack in ExecutorRun. This allows LIMIT to work in a view. Also, LIMIT in a cursor declaration will behave in a reasonable fashion, whereas before it was overridden by the FETCH count.
26 years ago
*
*-------------------------------------------------------------------------
*/
#ifndef NODELIMIT_H
#define NODELIMIT_H
#include "nodes/plannodes.h"
extern TupleTableSlot *ExecLimit(Limit *node);
extern bool ExecInitLimit(Limit *node, EState *estate, Plan *parent);
extern int ExecCountSlotsLimit(Limit *node);
extern void ExecEndLimit(Limit *node);
extern void ExecReScanLimit(Limit *node, ExprContext *exprCtxt, Plan *parent);
Another pgindent run. Fixes enum indenting, and improves #endif spacing. Also adds space for one-line comments.
25 years ago
Re-implement LIMIT/OFFSET as a plan node type, instead of a hack in ExecutorRun. This allows LIMIT to work in a view. Also, LIMIT in a cursor declaration will behave in a reasonable fashion, whereas before it was overridden by the FETCH count.
26 years ago
#endif /* NODELIMIT_H */