#include <postgres.h>#include <catalog/pg_statistic.h>#include <utils/selfuncs.h>#include "general/meos_catalog.h"#include "point/tpoint.h"#include "pg_point/tpoint_analyze.h"
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Macros | |
| #define | DEFAULT_ND_JOINSEL 0.001 |
| #define | DEFAULT_ND_SEL 0.0001 |
| Default geometry selectivity factor. More... | |
| #define | FALLBACK_ND_JOINSEL 0.3 |
| #define | FALLBACK_ND_SEL 0.2 |
| More modest fallafter selectivity factor. More... | |
| #define | MIN_DIMENSION_WIDTH 0.000000001 |
| Minimum width of a dimension that we'll bother trying to compute statistics on. More... | |
| #define | ND_DIMS 4 |
| #define | SDFACTOR 3.25 |
| #define | STATISTIC_KIND_2D 103 |
| #define | STATISTIC_KIND_ND 102 |
| #define | STATISTIC_SLOT_2D 1 |
| #define | STATISTIC_SLOT_ND 0 |
| #define | T_DIM 3 |
| #define | X_DIM 0 |
| Selectivity functions for temporal point types. More... | |
| #define | Y_DIM 1 |
| #define | Z_DIM 2 |
Functions | |
| float8 | geo_joinsel (const ND_STATS *s1, const ND_STATS *s2) |
| Given two statistics histograms, what is the selectivity of a join driven by the && operator? More... | |
| float8 | geo_sel (VariableStatData *vardata, const STBox *box, meosOper oper) |
| Return an estimate of the selectivity of a spatiotemporal search box by looking at data in the ND_STATS structure. More... | |
| ND_STATS * | pg_get_nd_stats (const Oid tableid, AttrNumber att_num, int mode, bool only_parent) |
| Pull the stats object from the PgSQL system catalogs. More... | |
| ND_STATS * | pg_nd_stats_from_tuple (HeapTuple stats_tuple, int mode) |
| Get the statistics from the tuple. More... | |
