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diff --git a/src/include/executor/execdesc.h b/src/include/executor/execdesc.h
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@@ -0,0 +1,70 @@
+/*-------------------------------------------------------------------------
+ *
+ * execdesc.h
+ *	  plan and query descriptor accessor macros used by the executor
+ *	  and related modules.
+ *
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/executor/execdesc.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef EXECDESC_H
+#define EXECDESC_H
+
+#include "nodes/execnodes.h"
+#include "tcop/dest.h"
+
+
+/* ----------------
+ *		query descriptor:
+ *
+ *	a QueryDesc encapsulates everything that the executor
+ *	needs to execute the query.
+ *
+ *	For the convenience of SQL-language functions, we also support QueryDescs
+ *	containing utility statements; these must not be passed to the executor
+ *	however.
+ * ---------------------
+ */
+typedef struct QueryDesc
+{
+	/* These fields are provided by CreateQueryDesc */
+	CmdType		operation;		/* CMD_SELECT, CMD_UPDATE, etc. */
+	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 */
+	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,
+								  QueryEnvironment *queryEnv,
+								  int instrument_options);
+
+extern void FreeQueryDesc(QueryDesc *qdesc);
+
+#endif							/* EXECDESC_H  */