
SHOW STATS
==========

Synopsis
--------

``` sql
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.

  Column                    Description
------------------------- --------------------------------------------------------------
  `column_name`             The name of the column (`NULL` for the summary row)
  `data_size`               The total size in bytes of all of the values in the column
  `distinct_values_count`   The number of distinct values in the column
  `nulls_fractions`         The portion of the values in the column that are `NULL`
  `row_count`               The number of rows (only returned for the summary row)
  `low_value`               The lowest value found in this column (only for some types)
  `high_value`              The highest value found in this column (only for some types)
