* and related modules.
*
*
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/executor/execdesc.h
{
/* These fields are provided by CreateQueryDesc */
CmdType operation; /* CMD_SELECT, CMD_UPDATE, etc. */
- PlannedStmt *plannedstmt; /* planner's output, or null if utility */
- Node *utilitystmt; /* utility statement, or null */
+ PlannedStmt *plannedstmt; /* planner's output (could be utility, too) */
const char *sourceText; /* source text of the query */
Snapshot snapshot; /* snapshot to use for query */
Snapshot crosscheck_snapshot; /* crosscheck for RI update/delete */
DestReceiver *dest; /* the destination for tuple output */
ParamListInfo params; /* param values being passed in */
- int instrument_options; /* OR of InstrumentOption flags */
+ QueryEnvironment *queryEnv; /* query environment passed in */
+ int instrument_options; /* OR of InstrumentOption flags */
/* These fields are set by ExecutorStart */
TupleDesc tupDesc; /* descriptor for result tuples */
EState *estate; /* executor's query-wide state */
PlanState *planstate; /* tree of per-plan-node state */
+ /* This field is set by ExecutorRun */
+ bool already_executed; /* true if previously executed */
+
/* This is always set NULL by the core system, but plugins can change it */
struct Instrumentation *totaltime; /* total time spent in ExecutorRun */
} QueryDesc;
/* in pquery.c */
extern QueryDesc *CreateQueryDesc(PlannedStmt *plannedstmt,
- const char *sourceText,
- Snapshot snapshot,
- Snapshot crosscheck_snapshot,
- DestReceiver *dest,
- ParamListInfo params,
- int instrument_options);
-
-extern QueryDesc *CreateUtilityQueryDesc(Node *utilitystmt,
- const char *sourceText,
- Snapshot snapshot,
- DestReceiver *dest,
- ParamListInfo params);
+ const char *sourceText,
+ Snapshot snapshot,
+ Snapshot crosscheck_snapshot,
+ DestReceiver *dest,
+ ParamListInfo params,
+ QueryEnvironment *queryEnv,
+ int instrument_options);
extern void FreeQueryDesc(QueryDesc *qdesc);
-#endif /* EXECDESC_H */
+#endif /* EXECDESC_H */