53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
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/*-------------------------------------------------------------------------
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*
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* postgres_fdw.h
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* Foreign-data wrapper for remote PostgreSQL servers
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*
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* Portions Copyright (c) 2012-2013, PostgreSQL Global Development Group
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*
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* IDENTIFICATION
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* contrib/postgres_fdw/postgres_fdw.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef POSTGRES_FDW_H
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#define POSTGRES_FDW_H
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#include "foreign/foreign.h"
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#include "lib/stringinfo.h"
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#include "nodes/relation.h"
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#include "utils/rel.h"
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#include "libpq-fe.h"
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/* in connection.c */
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extern PGconn *GetConnection(ForeignServer *server, UserMapping *user);
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extern void ReleaseConnection(PGconn *conn);
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extern unsigned int GetCursorNumber(PGconn *conn);
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extern void pgfdw_report_error(int elevel, PGresult *res, bool clear,
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const char *sql);
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/* in option.c */
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extern int ExtractConnectionOptions(List *defelems,
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const char **keywords,
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const char **values);
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/* in deparse.c */
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extern void classifyConditions(PlannerInfo *root,
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RelOptInfo *baserel,
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List **remote_conds,
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List **param_conds,
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List **local_conds,
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List **param_numbers);
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extern void deparseSimpleSql(StringInfo buf,
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PlannerInfo *root,
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RelOptInfo *baserel,
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List *local_conds);
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extern void appendWhereClause(StringInfo buf,
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bool has_where,
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List *exprs,
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PlannerInfo *root);
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extern void deparseAnalyzeSql(StringInfo buf, Relation rel);
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#endif /* POSTGRES_FDW_H */
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