vertica storage statistics

vertica stores statistics:

Number of tables:

select count(distinct table_name)  FROM tables;

Number of partitioned tables:

select count(distinct table_name) from PARTITION_COLUMNS;

Total table size:

SELECT sum(used_bytes)/1024/1024/1024 FROM projection_storage ;

Total partition table size:

select sum(disk_space_bytes)/1024/1024/1024 from PARTITION_COLUMNS;
SELECT sum(used_bytes)/1024/1024/1024 FROM projection_storage where anchor_table_name in (select distinct table_name from PARTITION_COLUMNS);

Partition table size (top 10):

select table_name,sum(disk_space_bytes)/1024/1024/1024 size from PARTITION_COLUMNS group by table_name order by size desc limit 10;

The size of each partition of the partition table (top 20):

select partition_key,sum(disk_space_bytes)/1024/1024/1024 size from PARTITION_COLUMNS group by partition_key order by size desc limit 20;

<script type="text/javascript"> $(function () { $('pre.prettyprint code').each(function () { var lines = $(this).text().split('\n').length; var $numbering = $('<ul/>').addClass('pre-numbering').hide(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i <= lines; i++) { $numbering.append($('<li/>').text(i)); }; $numbering.fadeIn(1700); }); }); </script>