mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-07 20:19:26 +02:00
21c09e99dc
The heapam XLog functions are used by other modules, not all of which are interested in the rest of the heapam API. With this, we let them get just the XLog stuff in which they are interested and not pollute them with unrelated includes. Also, since heapam.h no longer requires xlog.h, many files that do include heapam.h no longer get xlog.h automatically, including a few headers. This is useful because heapam.h is getting pulled in by execnodes.h, which is in turn included by a lot of files.
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* prepare.h
|
|
* PREPARE, EXECUTE and DEALLOCATE commands, and prepared-stmt storage
|
|
*
|
|
*
|
|
* Copyright (c) 2002-2012, PostgreSQL Global Development Group
|
|
*
|
|
* src/include/commands/prepare.h
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
#ifndef PREPARE_H
|
|
#define PREPARE_H
|
|
|
|
#include "commands/explain.h"
|
|
#include "datatype/timestamp.h"
|
|
#include "utils/plancache.h"
|
|
|
|
/*
|
|
* The data structure representing a prepared statement. This is now just
|
|
* a thin veneer over a plancache entry --- the main addition is that of
|
|
* a name.
|
|
*
|
|
* Note: all subsidiary storage lives in the referenced plancache entry.
|
|
*/
|
|
typedef struct
|
|
{
|
|
/* dynahash.c requires key to be first field */
|
|
char stmt_name[NAMEDATALEN];
|
|
CachedPlanSource *plansource; /* the actual cached plan */
|
|
bool from_sql; /* prepared via SQL, not FE/BE protocol? */
|
|
TimestampTz prepare_time; /* the time when the stmt was prepared */
|
|
} PreparedStatement;
|
|
|
|
|
|
/* Utility statements PREPARE, EXECUTE, DEALLOCATE, EXPLAIN EXECUTE */
|
|
extern void PrepareQuery(PrepareStmt *stmt, const char *queryString);
|
|
extern void ExecuteQuery(ExecuteStmt *stmt, IntoClause *intoClause,
|
|
const char *queryString, ParamListInfo params,
|
|
DestReceiver *dest, char *completionTag);
|
|
extern void DeallocateQuery(DeallocateStmt *stmt);
|
|
extern void ExplainExecuteQuery(ExecuteStmt *execstmt, IntoClause *into,
|
|
ExplainState *es,
|
|
const char *queryString, ParamListInfo params);
|
|
|
|
/* Low-level access to stored prepared statements */
|
|
extern void StorePreparedStatement(const char *stmt_name,
|
|
CachedPlanSource *plansource,
|
|
bool from_sql);
|
|
extern PreparedStatement *FetchPreparedStatement(const char *stmt_name,
|
|
bool throwError);
|
|
extern void DropPreparedStatement(const char *stmt_name, bool showError);
|
|
extern TupleDesc FetchPreparedStatementResultDesc(PreparedStatement *stmt);
|
|
extern List *FetchPreparedStatementTargetList(PreparedStatement *stmt);
|
|
|
|
extern void DropAllPreparedStatements(void);
|
|
|
|
#endif /* PREPARE_H */
|