9.30. Statistics Information Functions
PostgreSQL provides a function to inspect complex statistics defined using the CREATE STATISTICS
command.
9.30.1. Inspecting MCV Lists
pg_mcv_list_items
returns a list of all items stored in a multi-column MCV list, and returns the following columns:
The pg_mcv_list_items
function can be used like this:
Values of the pg_mcv_list
can be obtained only from the pg_statistic_ext_data.stxdmcv
column.
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