holds definitions of extended planner statistics.
Each row in this catalog corresponds to a statistics object
created with CREATE STATISTICS.
|Table containing the columns described by this object|
|Name of the statistics object|
|The OID of the namespace that contains this statistics object|
|Owner of the statistics object|
An array of attribute numbers, indicating which table columns are
covered by this statistics object;
for example a value of |
An array containing codes for the enabled statistic kinds;
valid values are:
pg_statistic_ext entry is filled in
CREATE STATISTICS, but the actual
statistical values are not computed then.
ANALYZE commands compute the desired values
and populate an entry in the