COMMENT ON TABLE

Adds, revises, or removes a comment on a table.

Adds, revises, or removes a comment on a table. Each object can have one comment. Comments are stored in the system table COMMENTS.

Syntax

COMMENT ON TABLE [[database.]schema.]table IS { 'comment' | NULL }

[database.]schema: Database and schema. The default schema is public. If you specify a database, it must be the current database.
table: The name of the table with which to associate the comment.
comment: Specifies the text of the comment to add. Enclose the text of the comment within single-quotes. If a comment already exists for this table, the comment you enter here overwrites the previous comment.
Comments can be up to 8192 characters in length. If a comment exceeds that limitation, Vertica truncates the comment and emits a message.
NULL: Removes a previously added comment.

Non-superuser: object owner

The following example adds a comment to the promotion_dimension table:

=> COMMENT ON TABLE promotion_dimension IS '2011 Promotions';

The following example removes a comment from the promotion_dimension table:

=> COMMENT ON TABLE promotion_dimension IS NULL;