relation.h File Reference

#include "access/sdir.h"
#include "nodes/params.h"
#include "nodes/parsenodes.h"
#include "storage/block.h"

Include dependency graph for relation.h:

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Go to the source code of this file.

Data Structures
struct	QualCost
struct	AggClauseCosts
struct	PlannerGlobal
struct	PlannerInfo
struct	RelOptInfo
struct	IndexOptInfo
struct	EquivalenceClass
struct	EquivalenceMember
struct	PathKey
struct	ParamPathInfo
struct	Path
struct	IndexPath
struct	BitmapHeapPath
struct	BitmapAndPath
struct	BitmapOrPath
struct	TidPath
struct	ForeignPath
struct	AppendPath
struct	MergeAppendPath
struct	ResultPath
struct	MaterialPath
struct	UniquePath
struct	JoinPath
struct	MergePath
struct	HashPath
struct	RestrictInfo
struct	MergeScanSelCache
struct	PlaceHolderVar
struct	SpecialJoinInfo
struct	LateralJoinInfo
struct	AppendRelInfo
struct	PlaceHolderInfo
struct	MinMaxAggInfo
struct	PlannerParamItem
struct	SemiAntiJoinFactors
struct	JoinCostWorkspace
Defines
#define	planner_subplan_get_plan(root, subplan)   ((Plan *) list_nth((root)->glob->subplans, (subplan)->plan_id - 1))
#define	planner_rt_fetch(rti, root)
#define	EC_MUST_BE_REDUNDANT(eclass)   ((eclass)->ec_has_const && !(eclass)->ec_below_outer_join)
#define	PATH_REQ_OUTER(path)   ((path)->param_info ? (path)->param_info->ppi_req_outer : (Relids) NULL)
#define	IS_DUMMY_PATH(p)   (IsA((p), AppendPath) && ((AppendPath *) (p))->subpaths == NIL)
#define	IS_DUMMY_REL(r)
Typedefs
typedef Bitmapset *	Relids
typedef enum CostSelector	CostSelector
typedef struct QualCost	QualCost
typedef struct AggClauseCosts	AggClauseCosts
typedef struct PlannerGlobal	PlannerGlobal
typedef struct PlannerInfo	PlannerInfo
typedef enum RelOptKind	RelOptKind
typedef struct RelOptInfo	RelOptInfo
typedef struct IndexOptInfo	IndexOptInfo
typedef struct EquivalenceClass	EquivalenceClass
typedef struct EquivalenceMember	EquivalenceMember
typedef struct PathKey	PathKey
typedef struct ParamPathInfo	ParamPathInfo
typedef struct Path	Path
typedef struct IndexPath	IndexPath
typedef struct BitmapHeapPath	BitmapHeapPath
typedef struct BitmapAndPath	BitmapAndPath
typedef struct BitmapOrPath	BitmapOrPath
typedef struct TidPath	TidPath
typedef struct ForeignPath	ForeignPath
typedef struct AppendPath	AppendPath
typedef struct MergeAppendPath	MergeAppendPath
typedef struct ResultPath	ResultPath
typedef struct MaterialPath	MaterialPath
typedef struct UniquePath	UniquePath
typedef struct JoinPath	JoinPath
typedef JoinPath	NestPath
typedef struct MergePath	MergePath
typedef struct HashPath	HashPath
typedef struct RestrictInfo	RestrictInfo
typedef struct MergeScanSelCache	MergeScanSelCache
typedef struct PlaceHolderVar	PlaceHolderVar
typedef struct SpecialJoinInfo	SpecialJoinInfo
typedef struct LateralJoinInfo	LateralJoinInfo
typedef struct AppendRelInfo	AppendRelInfo
typedef struct PlaceHolderInfo	PlaceHolderInfo
typedef struct MinMaxAggInfo	MinMaxAggInfo
typedef struct PlannerParamItem	PlannerParamItem
typedef struct SemiAntiJoinFactors	SemiAntiJoinFactors
typedef struct JoinCostWorkspace	JoinCostWorkspace
Enumerations
enum	CostSelector { STARTUP_COST, TOTAL_COST }
enum	RelOptKind { RELOPT_BASEREL, RELOPT_JOINREL, RELOPT_OTHER_MEMBER_REL, RELOPT_DEADREL }
enum	UniquePathMethod { UNIQUE_PATH_NOOP, UNIQUE_PATH_HASH, UNIQUE_PATH_SORT }

---

Define Documentation

#define EC_MUST_BE_REDUNDANT

(

eclass

)

((eclass)->ec_has_const && !(eclass)->ec_below_outer_join)

Definition at line 589 of file relation.h.

Referenced by pathkey_is_redundant(), and select_mergejoin_clauses().

#define IS_DUMMY_PATH

(

p

)

(IsA((p), AppendPath) && ((AppendPath *) (p))->subpaths == NIL)

Definition at line 882 of file relation.h.

#define IS_DUMMY_REL

(

r

)

Value:

((r)->cheapest_total_path != NULL && \
     IS_DUMMY_PATH((r)->cheapest_total_path))

Definition at line 886 of file relation.h.

Referenced by get_loop_count(), is_dummy_rel(), set_append_rel_pathlist(), set_append_rel_size(), and set_rel_pathlist().

#define PATH_REQ_OUTER

(

path

)

((path)->param_info ? (path)->param_info->ppi_req_outer : (Relids) NULL)

Definition at line 721 of file relation.h.

Referenced by add_path(), add_path_precheck(), calc_nestloop_required_outer(), calc_non_nestloop_required_outer(), create_append_path(), create_merge_append_path(), create_nestloop_path(), get_bitmap_tree_required_outer(), get_cheapest_fractional_path_for_pathkeys(), get_cheapest_path_for_pathkeys(), get_joinrel_parampathinfo(), reparameterize_path(), set_append_rel_pathlist(), and set_cheapest().

#define planner_rt_fetch	(		rti,
			root
	)

Value:

((root)->simple_rte_array ? (root)->simple_rte_array[rti] : \
     rt_fetch(rti, (root)->parse->rtable))

Definition at line 254 of file relation.h.

Referenced by btcostestimate(), build_physical_tlist(), cost_functionscan(), create_ctescan_plan(), create_foreignscan_plan(), create_functionscan_plan(), create_unique_path(), create_valuesscan_plan(), create_worktablescan_plan(), deparseColumnRef(), deparseSelectSql(), make_modifytable(), postgresGetForeignRelSize(), postgresPlanForeignModify(), preprocess_minmax_aggregates(), set_cte_size_estimates(), set_function_size_estimates(), set_rel_width(), set_subquery_size_estimates(), and set_values_size_estimates().

#define planner_subplan_get_plan	(		root,
			subplan
	)			((Plan *) list_nth((root)->glob->subplans, (subplan)->plan_id - 1))

Definition at line 104 of file relation.h.

Referenced by finalize_primnode(), and SS_finalize_plan().

---

Typedef Documentation

typedef struct AggClauseCosts AggClauseCosts

typedef struct AppendPath AppendPath

typedef struct AppendRelInfo AppendRelInfo

typedef struct BitmapAndPath BitmapAndPath

typedef struct BitmapHeapPath BitmapHeapPath

typedef struct BitmapOrPath BitmapOrPath

typedef enum CostSelector CostSelector

typedef struct EquivalenceClass EquivalenceClass

typedef struct EquivalenceMember EquivalenceMember

typedef struct ForeignPath ForeignPath

typedef struct HashPath HashPath

typedef struct IndexOptInfo IndexOptInfo

typedef struct IndexPath IndexPath

typedef struct JoinCostWorkspace JoinCostWorkspace

typedef struct JoinPath JoinPath

typedef struct LateralJoinInfo LateralJoinInfo

typedef struct MaterialPath MaterialPath

typedef struct MergeAppendPath MergeAppendPath

typedef struct MergePath MergePath

typedef struct MergeScanSelCache MergeScanSelCache

typedef struct MinMaxAggInfo MinMaxAggInfo

typedef JoinPath NestPath

Definition at line 981 of file relation.h.

typedef struct ParamPathInfo ParamPathInfo

typedef struct Path Path

typedef struct PathKey PathKey

typedef struct PlaceHolderInfo PlaceHolderInfo

typedef struct PlaceHolderVar PlaceHolderVar

typedef struct PlannerGlobal PlannerGlobal

typedef struct PlannerInfo PlannerInfo

typedef struct PlannerParamItem PlannerParamItem

typedef struct QualCost QualCost

typedef Bitmapset* Relids

Definition at line 27 of file relation.h.

typedef struct RelOptInfo RelOptInfo

typedef enum RelOptKind RelOptKind

typedef struct RestrictInfo RestrictInfo

typedef struct ResultPath ResultPath

typedef struct SemiAntiJoinFactors SemiAntiJoinFactors

typedef struct SpecialJoinInfo SpecialJoinInfo

typedef struct TidPath TidPath

typedef struct UniquePath UniquePath

---

Enumeration Type Documentation

enum CostSelector

Enumerator:

STARTUP_COST
TOTAL_COST

Definition at line 33 of file relation.h.

{
    STARTUP_COST, TOTAL_COST
} CostSelector;

enum RelOptKind

Enumerator:

RELOPT_BASEREL
RELOPT_JOINREL
RELOPT_OTHER_MEMBER_REL
RELOPT_DEADREL

Definition at line 392 of file relation.h.

{
    RELOPT_BASEREL,
    RELOPT_JOINREL,
    RELOPT_OTHER_MEMBER_REL,
    RELOPT_DEADREL
} RelOptKind;

enum UniquePathMethod

Enumerator:

UNIQUE_PATH_NOOP
UNIQUE_PATH_HASH
UNIQUE_PATH_SORT

Definition at line 939 of file relation.h.

{
    UNIQUE_PATH_NOOP,           /* input is known unique already */
    UNIQUE_PATH_HASH,           /* use hashing */
    UNIQUE_PATH_SORT            /* use sorting */
} UniquePathMethod;