1 /*-------------------------------------------------------------------------
4 * prototypes for explain.c
6 * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
7 * Portions Copyright (c) 1994-5, Regents of the University of California
9 * $PostgreSQL: pgsql/src/include/commands/explain.h,v 1.38 2009/01/02 20:42:00 tgl Exp $
11 *-------------------------------------------------------------------------
16 #include "executor/executor.h"
18 /* Hook for plugins to get control in ExplainOneQuery() */
19 typedef void (*ExplainOneQuery_hook_type) (Query *query,
21 const char *queryString,
23 TupOutputState *tstate);
24 extern PGDLLIMPORT ExplainOneQuery_hook_type ExplainOneQuery_hook;
26 /* Hook for plugins to get control in explain_get_index_name() */
27 typedef const char *(*explain_get_index_name_hook_type) (Oid indexId);
28 extern PGDLLIMPORT explain_get_index_name_hook_type explain_get_index_name_hook;
31 extern void ExplainQuery(ExplainStmt *stmt, const char *queryString,
32 ParamListInfo params, DestReceiver *dest);
34 extern TupleDesc ExplainResultDesc(ExplainStmt *stmt);
36 extern void ExplainOneUtility(Node *utilityStmt, ExplainStmt *stmt,
37 const char *queryString,
39 TupOutputState *tstate);
41 extern void ExplainOnePlan(PlannedStmt *plannedstmt, ExplainStmt *stmt,
42 const char *queryString,
44 TupOutputState *tstate);
46 extern void ExplainPrintPlan(StringInfo str, QueryDesc *queryDesc,
47 bool analyze, bool verbose);
49 #endif /* EXPLAIN_H */