pg_statistic_ext_data
The catalog pg_statistic_ext_data
holds data for extended planner statistics defined in pg_statistic_ext.
Each row in this catalog corresponds to a statistics object
created with CREATE STATISTICS.
Table 51.52. pg_statistic_ext_data Columns
| Name | Type | References | Description |
|---|---|---|---|
stxoid | oid | | Extended statistic containing the definition for this data. |
stxdndistinct | pg_ndistinct |
N-distinct counts, serialized as pg_ndistinct type
| |
stxddependencies | pg_dependencies |
Functional dependency statistics, serialized
as pg_dependencies type
| |
stxdmcv | pg_mcv_list |
MCV (most-common values) list statistics, serialized as
pg_mcv_list type.
|