# SHOW STATS#

## Synopsis#

SHOW STATS FOR table
SHOW STATS FOR ( query )


## Description#

Returns approximated statistics for the named table or for the results of a query. Returns NULL for any statistics that are not populated or unavailable on the data source.

Statistics are returned as a row for each column, plus a summary row for the table (identifiable by a NULL value for column_name). The following table lists the returned columns and what statistics they represent. Any additional statistics collected on the data source, other than those listed here, are not included.

Column

Description

Notes

column_name

The name of the column

NULL in the table summary row

data_size

The total size in bytes of all of the values in the column

NULL in the table summary row. Available for columns of textual types (CHAR, VARCHAR, etc)

distinct_values_count

The estimated number of distinct values in the column m

NULL in the table summary row

nulls_fractions

The portion of the values in the column that are NULL

NULL in the table summary row.

row_count

The estimated number of rows in the table

NULL in column statistic rows

low_value

The lowest value found in this column

NULL in the table summary row. Available for columns of numeric types (BIGINT, DECIMAL, etc)

high_value

The highest value found in this column

NULL in the table summary row. Available for columns of numeric types (BIGINT, DECIMAL, etc)