ORA-1452 Creating Materialized View with Group By Containing More Than 32 Columns

(Doc ID 2016046.1)

Last updated on JUNE 18, 2015

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


In version 10.2 or later, a create materialized view statement with a group by clause containing more than 32 columns fails with the following error:

ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found

For version earlier 10.2, instead with the following error:

ORA-01793: maximum number of index columns is 32

refer to Note:337639.1



Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms