* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/utils/plancache.h,v 1.8 2007/09/20 17:56:32 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/utils/plancache.h,v 1.9 2007/11/15 21:14:45 momjian Exp $
*
*-------------------------------------------------------------------------
*/
* losing any flexibility if a replan turns out to be necessary.
*
* Note: the string referenced by commandTag is not subsidiary storage;
- * it is assumed to be a compile-time-constant string. As with portals,
+ * it is assumed to be a compile-time-constant string. As with portals,
* commandTag shall be NULL if and only if the original query string (before
* rewriting) was an empty string.
*/
typedef struct CachedPlanSource
{
- Node *raw_parse_tree; /* output of raw_parser() */
+ Node *raw_parse_tree; /* output of raw_parser() */
char *query_string; /* text of query, or NULL */
const char *commandTag; /* command tag (a constant!), or NULL */
Oid *param_types; /* array of parameter type OIDs, or NULL */
int num_params; /* length of param_types array */
- int cursor_options; /* cursor options used for planning */
+ int cursor_options; /* cursor options used for planning */
bool fully_planned; /* do we cache planner or rewriter output? */
bool fixed_result; /* disallow change in result tupdesc? */
struct OverrideSearchPath *search_path; /* saved search_path */
TupleDesc resultDesc; /* result type; NULL = doesn't return tuples */
struct CachedPlan *plan; /* link to plan, or NULL if not valid */
MemoryContext context; /* context containing this CachedPlanSource */
- struct CachedPlan *orig_plan; /* link to plan owning my context */
-} CachedPlanSource;
+ struct CachedPlan *orig_plan; /* link to plan owning my context */
+} CachedPlanSource;
/*
* CachedPlan represents the portion of a cached plan that is discarded when
int refcount; /* count of live references to this struct */
int generation; /* counter, starting at 1, for replans */
MemoryContext context; /* context containing this CachedPlan */
-} CachedPlan;
+} CachedPlan;
extern void InitPlanCache(void);
extern CachedPlanSource *CreateCachedPlan(Node *raw_parse_tree,
- const char *query_string,
- const char *commandTag,
- Oid *param_types,
- int num_params,
- int cursor_options,
- List *stmt_list,
- bool fully_planned,
- bool fixed_result);
+ const char *query_string,
+ const char *commandTag,
+ Oid *param_types,
+ int num_params,
+ int cursor_options,
+ List *stmt_list,
+ bool fully_planned,
+ bool fixed_result);
extern CachedPlanSource *FastCreateCachedPlan(Node *raw_parse_tree,
- char *query_string,
- const char *commandTag,
- Oid *param_types,
- int num_params,
- int cursor_options,
- List *stmt_list,
- bool fully_planned,
- bool fixed_result,
- MemoryContext context);
-extern void DropCachedPlan(CachedPlanSource *plansource);
-extern CachedPlan *RevalidateCachedPlan(CachedPlanSource *plansource,
- bool useResOwner);
-extern void ReleaseCachedPlan(CachedPlan *plan, bool useResOwner);
+ char *query_string,
+ const char *commandTag,
+ Oid *param_types,
+ int num_params,
+ int cursor_options,
+ List *stmt_list,
+ bool fully_planned,
+ bool fixed_result,
+ MemoryContext context);
+extern void DropCachedPlan(CachedPlanSource * plansource);
+extern CachedPlan *RevalidateCachedPlan(CachedPlanSource * plansource,
+ bool useResOwner);
+extern void ReleaseCachedPlan(CachedPlan * plan, bool useResOwner);
extern TupleDesc PlanCacheComputeResultDesc(List *stmt_list);
extern void ResetPlanCache(void);
projects / postgresql / blobdiff