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/*-------------------------------------------------------------------------
*
* extendplan.h
* Extend core planner objects with additional private state
*
*
* Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/optimizer/extendplan.h
*
*-------------------------------------------------------------------------
*/
#ifndef EXTENDPLAN_H
#define EXTENDPLAN_H
#include "nodes/pathnodes.h"
extern int GetPlannerExtensionId(const char *extension_name);
/*
* Get extension-specific state from a PlannerGlobal.
*/
static inline void *
GetPlannerGlobalExtensionState(PlannerGlobal *glob, int extension_id)
{
Assert(extension_id >= 0);
if (extension_id >= glob->extension_state_allocated)
return NULL;
return glob->extension_state[extension_id];
}
/*
* Get extension-specific state from a PlannerInfo.
*/
static inline void *
GetPlannerInfoExtensionState(PlannerInfo *root, int extension_id)
{
Assert(extension_id >= 0);
if (extension_id >= root->extension_state_allocated)
return NULL;
return root->extension_state[extension_id];
}
/*
* Get extension-specific state from a PlannerInfo.
*/
static inline void *
GetRelOptInfoExtensionState(RelOptInfo *rel, int extension_id)
{
Assert(extension_id >= 0);
if (extension_id >= rel->extension_state_allocated)
return NULL;
return rel->extension_state[extension_id];
}
/* Functions to store private state into various planner objects */
extern void SetPlannerGlobalExtensionState(PlannerGlobal *glob,
int extension_id,
void *opaque);
extern void SetPlannerInfoExtensionState(PlannerInfo *root, int extension_id,
void *opaque);
extern void SetRelOptInfoExtensionState(RelOptInfo *rel, int extension_id,
void *opaque);
#endif
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