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/*-------------------------------------------------------------------------
 *
 * deparse_utility.h
 *
 * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/tcop/deparse_utility.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef DEPARSE_UTILITY_H
#define DEPARSE_UTILITY_H

#include "access/attnum.h"
#include "catalog/objectaddress.h"
#include "nodes/nodes.h"
#include "utils/aclchk_internal.h"


/*
 * Support for keeping track of collected commands.
 */
typedef enum CollectedCommandType
{
	SCT_Simple,
	SCT_AlterTable,
	SCT_Grant,
	SCT_AlterOpFamily,
	SCT_AlterDefaultPrivileges,
	SCT_CreateOpClass,
	SCT_AlterTSConfig
} CollectedCommandType;

/*
 * For ALTER TABLE commands, we keep a list of the subcommands therein.
 */
typedef struct CollectedATSubcmd
{
	ObjectAddress	address; /* affected column, constraint, index, ... */
	Node		   *parsetree;
} CollectedATSubcmd;

typedef struct CollectedCommand
{
	CollectedCommandType type;
	bool		in_extension;
	Node	   *parsetree;

	union
	{
		/* most commands */
		struct
		{
			ObjectAddress address;
			ObjectAddress secondaryObject;
		} simple;

		/* ALTER TABLE, and internal uses thereof */
		struct
		{
			Oid		objectId;
			Oid		classId;
			List   *subcmds;
		} alterTable;

		/* GRANT / REVOKE */
		struct
		{
			InternalGrant *istmt;
		} grant;

		/* ALTER OPERATOR FAMILY */
		struct
		{
			ObjectAddress address;
			List   *operators;
			List   *procedures;
		} opfam;

		/* CREATE OPERATOR CLASS */
		struct
		{
			ObjectAddress address;
			List   *operators;
			List   *procedures;
		} createopc;

		/* ALTER TEXT SEARCH CONFIGURATION ADD/ALTER/DROP MAPPING */
		struct
		{
			ObjectAddress address;
			Oid	   *dictIds;
			int		ndicts;
		} atscfg;

		/* ALTER DEFAULT PRIVILEGES */
		struct
		{
			GrantObjectType objtype;
		} defprivs;
	} d;
} CollectedCommand;

#endif	/* DEPARSE_UTILITY_H */