You want to use the following system table: column_storage
It has all the information you need. Row count and bytes per projection per node. You can always query it using SUM() to get the cut you want.
Frage
How can I determine the bytes per row and/or column for a specific schema.table in Vertica?
Lösung
You want to use the following system table: column_storage
It has all the information you need. Row count and bytes per projection per node. You can always query it using SUM() to get the cut you want.