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/*-------------------------------------------------------------------------
*
* pquery.h
* prototypes for pquery.c.
*
*
* Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/tcop/pquery.h
*
*-------------------------------------------------------------------------
*/
#ifndef PQUERY_H
#define PQUERY_H
#include "nodes/parsenodes.h"
#include "utils/portal.h"
struct PlannedStmt; /* avoid including plannodes.h here */
extern PGDLLIMPORT Portal ActivePortal;
extern PortalStrategy ChoosePortalStrategy(List *stmts);
extern List *FetchPortalTargetList(Portal portal);
extern List *FetchStatementTargetList(Node *stmt);
extern void PortalStart(Portal portal, ParamListInfo params,
int eflags, Snapshot snapshot);
extern void PortalSetResultFormat(Portal portal, int nFormats,
int16 *formats);
extern bool PortalRun(Portal portal, long count, bool isTopLevel,
bool run_once, DestReceiver *dest, DestReceiver *altdest,
QueryCompletion *qc);
extern uint64 PortalRunFetch(Portal portal,
FetchDirection fdirection,
long count,
DestReceiver *dest);
extern bool PlannedStmtRequiresSnapshot(struct PlannedStmt *pstmt);
extern void EnsurePortalSnapshotExists(void);
#endif /* PQUERY_H */
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