Star User Guide > Star User Guide > C. Standard Catalog Interface > Catalogs > iihistograms Catalog
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iihistograms Catalog
The iihistograms table contains histogram information used by the optimizer:
Column Name
Data Type
Description
table_name
char(256)
The table for the histogram. Must be a valid name.
table_owner
char(32)
The table owner. Must be a valid name.
column_name
char(256)
The name of the column. Must be a valid name.
text_sequence
Integer
The sequence number for the histogram, numbered from 1. There may be several rows in this table, used to order the optdata data when histogram is read into memory.
text_segment
char(228)
The encoded histogram data, created by optimizedb.
Last modified date: 01/30/2023