blcost.c File Reference

#include "postgres.h"
#include "bloom.h"
#include "utils/selfuncs.h"

Include dependency graph for blcost.c:

Functions

void blcostestimate (PlannerInfo *root, IndexPath *path, double loop_count, Cost *indexStartupCost, Cost *indexTotalCost, Selectivity *indexSelectivity, double *indexCorrelation, double *indexPages)

Function Documentation

◆ blcostestimate()

void blcostestimate ( PlannerInfo * root,

IndexPath * path,

double loop_count,

Cost * indexStartupCost,

Cost * indexTotalCost,

Selectivity * indexSelectivity,

double * indexCorrelation,

double * indexPages

)

Definition at line 22 of file blcost.c.

26{

27 IndexOptInfo *index = path->indexinfo;

28 GenericCosts costs = {0};

29

30 /* We have to visit all index tuples anyway */

31 costs.numIndexTuples = index->tuples;

32

33 /* Use generic estimate */

34 genericcostestimate(root, path, loop_count, &costs);

35

36 *indexStartupCost = costs.indexStartupCost;

37 *indexTotalCost = costs.indexTotalCost;

38 *indexSelectivity = costs.indexSelectivity;

39 *indexCorrelation = costs.indexCorrelation;

40 *indexPages = costs.numIndexPages;

41}

root

tree ctl root

Definition: radixtree.h:1857

genericcostestimate

void genericcostestimate(PlannerInfo *root, IndexPath *path, double loop_count, GenericCosts *costs)

Definition: selfuncs.c:6995

GenericCosts

Definition: selfuncs.h:125

GenericCosts::indexSelectivity

Selectivity indexSelectivity

Definition: selfuncs.h:129

GenericCosts::indexStartupCost

Cost indexStartupCost

Definition: selfuncs.h:127

GenericCosts::indexCorrelation

double indexCorrelation

Definition: selfuncs.h:130

GenericCosts::indexTotalCost

Cost indexTotalCost

Definition: selfuncs.h:128

GenericCosts::numIndexPages

double numIndexPages

Definition: selfuncs.h:133

GenericCosts::numIndexTuples

double numIndexTuples

Definition: selfuncs.h:134

IndexOptInfo

Definition: pathnodes.h:1162

IndexPath::indexinfo

IndexOptInfo * indexinfo

Definition: pathnodes.h:1869

index

Definition: type.h:96

References genericcostestimate(), GenericCosts::indexCorrelation, IndexPath::indexinfo, GenericCosts::indexSelectivity, GenericCosts::indexStartupCost, GenericCosts::indexTotalCost, GenericCosts::numIndexPages, GenericCosts::numIndexTuples, and root.

Referenced by blhandler().