59 lines
2.5 KiB
C
59 lines
2.5 KiB
C
/* -------------------------------------------------------------------------
|
|
*
|
|
* postgres_fdw.h
|
|
* Foreign-data wrapper for remote PostgreSQL servers
|
|
*
|
|
* Portions Copyright (c) 2020 Huawei Technologies Co.,Ltd.
|
|
* Portions Copyright (c) 2012-2014, PostgreSQL Global Development Group
|
|
*
|
|
* IDENTIFICATION
|
|
* contrib/postgres_fdw/postgres_fdw.h
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
#ifndef POSTGRES_FDW_H
|
|
#define POSTGRES_FDW_H
|
|
|
|
#include "foreign/foreign.h"
|
|
#include "lib/stringinfo.h"
|
|
#include "nodes/relation.h"
|
|
#include "utils/rel.h"
|
|
|
|
#include "libpq/libpq-fe.h"
|
|
|
|
/* in postgres_fdw.c */
|
|
extern int set_transmission_modes(void);
|
|
extern void reset_transmission_modes(int nestlevel);
|
|
|
|
/* in connection.c */
|
|
extern PGconn *GetConnection(ForeignServer *server, UserMapping *user, bool will_prep_stmt);
|
|
extern void ReleaseConnection(PGconn *conn);
|
|
extern unsigned int GetCursorNumber(PGconn *conn);
|
|
extern unsigned int GetPrepStmtNumber(PGconn *conn);
|
|
extern PGresult *pgfdw_get_result(PGconn *conn, const char *query);
|
|
extern PGresult *pgfdw_exec_query(PGconn *conn, const char *query);
|
|
extern void pgfdw_report_error(int elevel, PGresult *res, PGconn *conn, bool clear, const char *sql);
|
|
|
|
/* in option.c */
|
|
extern int ExtractConnectionOptions(List *defelems, const char **keywords, const char **values);
|
|
|
|
/* in deparse.c */
|
|
extern void classifyConditions(PlannerInfo *root, RelOptInfo *baserel, List *input_conds, List **remote_conds,
|
|
List **local_conds);
|
|
extern bool is_foreign_expr(PlannerInfo *root, RelOptInfo *baserel, Expr *expr);
|
|
extern void deparseSelectSql(StringInfo buf, PlannerInfo *root, RelOptInfo *baserel, Bitmapset *attrs_used,
|
|
List **retrieved_attrs);
|
|
extern void appendWhereClause(StringInfo buf, PlannerInfo *root, RelOptInfo *baserel, List *exprs, bool is_first,
|
|
List **params);
|
|
extern void deparseInsertSql(StringInfo buf, RangeTblEntry *rte, Index rtindex, Relation rel, List *targetAttrs,
|
|
List *returningList, List **retrieved_attrs);
|
|
extern void deparseUpdateSql(StringInfo buf, RangeTblEntry *rte, Index rtindex, Relation rel, List *targetAttrs,
|
|
List *returningList, List **retrieved_attrs);
|
|
extern void deparseDeleteSql(StringInfo buf, RangeTblEntry *rte, Index rtindex, Relation rel, List *returningList,
|
|
List **retrieved_attrs);
|
|
extern void deparseAnalyzeSizeSql(StringInfo buf, Relation rel);
|
|
extern void deparseAnalyzeSql(StringInfo buf, Relation rel, List **retrieved_attrs);
|
|
|
|
#endif /* POSTGRES_FDW_H */
|
|
|