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/* -*-pgsql-c-*- */
/*
* $Header: /cvsroot/pgpool/pgpool-II/pool_rewrite_query.h,v 1.2 2007/01/04 17:27:10 devrim Exp $
*
* pgpool: a language independent connection pool server for PostgreSQL
* written by Tatsuo Ishii
*
* Copyright (c) 2003-2007 PgPool Global Development Group
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that the above copyright notice appear in all
* copies and that both that copyright notice and this permission
* notice appear in supporting documentation, and that the name of the
* author not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. The author makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* pool_rewrite_query.h: rewrite_query
*
*/
#include "parser/nodes.h"
#include "parser/parser.h"
#include "parser/pg_list.h"
#include "parser/parsenodes.h"
#include "parser/pool_memory.h"
#include "parser/pool_string.h"
/* return code set */
#define INSERT_SQL_RESTRICTION 1
#define SELECT_INIT 2
#define SELECT_BACKEND_CONNECT 3
#define SELECT_NOT_BACKEND_CONNECT 4
#define SELECT_PGCATALOG 5
#define SELECT_CHECK_PGCATALOG 6
#define SELECT_DEFAULT 7
#define SELECT_DEFAULT_INSIDE_DBLINK 8
#define SELECT_AEXPR 9
#define SELECT_AEXPR_FALSE 10
#define SELECT_ONETABLE 11
#define SELECT_ONETABLE_FALSE 12
#define SELECT_RELATION_ERROR 13
typedef struct {
int r_code;
int r_node;
char *table_relname;
char *table_alias;
char *schemaname;
char *dbname;
char *rewrite_query;
POOL_STATUS status;
NodeTag type;
} RewriteQuery;
typedef struct {
char *hostaddr;
char *dbname;
char *user;
int port;
char *password;
} ConInfoTodblink;
extern RewriteQuery *rewrite_query_stmt(Node *node, POOL_CONNECTION *frontend,POOL_CONNECTION_POOL *backend);
extern void nodeToRewriteString(RewriteQuery *message, ConInfoTodblink *dblink,void *obj);
char *pool_error_message(char *message);
extern int IsSelectpgcatalog(Node *node,POOL_CONNECTION_POOL *backend);
extern char *is_parallel_query(Node *node,POOL_CONNECTION_POOL *backend);
extern POOL_STATUS pool_parallel_exec(POOL_CONNECTION *frontend,POOL_CONNECTION_POOL *backend, char *string,Node *node,bool send_to_frontend);
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