15.10 - row_level_security_constraint_column_name CONSTRAINT - Teradata Database

Teradata Database SQL Data Definition Language Syntax and Examples

Teradata Database
December 2015
Programming Reference

The name of a constraint object that you want to define as a row-level security constraint column for table_name. The constraint object must exist in the database. See CREATE CONSTRAINT.

Each specified row-level security constraint name must be unique among column names for the table.

You cannot create a row-level security constraint column for a global temporary table or for a volatile table.

A security constraint object definition includes a name, data type, and nullability specification when it is created. You cannot assign any additional attributes to a security constraint column when creating a table.

You cannot compress a row-level security constraint column using either multivalue compression or algorithmic compression. However, there are no restrictions on using auto-compression or block compression for a row-level security table with column partitions.

You can define a maximum of 5 row-level security constraint columns for a table.

When using referential integrity (RI) on tables that define security constraint columns, the system does not recognize security constraints when checking referential integrity for either the parent and child RI table. Execution of any request that access such RI tables continues as if the tables had no row-level security constraints.