command.h

来自「关系型数据库 Postgresql 6.5.2」· C头文件 代码 · 共 50 行

/*-------------------------------------------------------------------------
 *
 * command.h
 *	  prototypes for command.c.
 *
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 * $Id: command.h,v 1.14.2.1 1999/07/30 18:52:55 scrappy Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef COMMAND_H
#define COMMAND_H

#include "utils/portal.h"

extern MemoryContext PortalExecutorHeapMemory;

/*
 * PerformPortalFetch
 *		Performs the POSTQUEL function FETCH.  Fetches count (or all if 0)
 * tuples in portal with name in the forward direction iff goForward.
 *
 * Exceptions:
 *		BadArg if forward invalid.
 *		"WARN" if portal not found.
 */
extern void PerformPortalFetch(char *name, bool forward, int count,
				   char *tag, CommandDest dest);

/*
 * PerformPortalClose
 *		Performs the POSTQUEL function CLOSE.
 */
extern void PerformPortalClose(char *name, CommandDest dest);

extern void PortalCleanup(Portal portal);

/*
 * PerformAddAttribute
 *		Performs the POSTQUEL function ADD.
 */
extern void PerformAddAttribute(char *relationName, char *userName,
					bool inh, ColumnDef *colDef);

extern void LockTableCommand(LockStmt *lockstmt);

#endif	 /* COMMAND_H */