Table of Contents

SHOW STATS

Synopsis

SHOW STATS FOR table
SHOW STATS FOR ( SELECT * FROM table [ WHERE condition ] )

Description

Returns approximated statistics for the named table or for the results of a (limited) query.

Statistics are returned for each column, along with a summary row.

ColumnDescription
column_nameThe name of the column (NULL for the summary row)
data_sizeThe total size in bytes of all of the values in the column
distinct_values_countThe number of distinct values in the column
nulls_fractionsThe portion of the values in the column that are NULL
row_countThe number of rows (only returned for the summary row)
low_valueThe lowest value found in this column (only for some types)
high_valueThe highest value found in this column (only for some types)