The COLUMN_STATISTICS table provides
      access to histogram statistics for column values.
    
For information about histogram statistics, see Section 10.9.6, “Optimizer Statistics”, and Section 15.7.3.1, “ANALYZE TABLE Statement”.
You can see information only for columns for which you have some privilege.
      The COLUMN_STATISTICS table has these
      columns:
- SCHEMA_NAME- The names of the schema for which the statistics apply. 
- TABLE_NAME- The names of the column for which the statistics apply. 
- COLUMN_NAME- The names of the column for which the statistics apply. 
- HISTOGRAM- A - JSONobject describing the column statistics, stored as a histogram.