Vertica Analytics Platform Version 9.2.x Documentation

TRUNCATE TABLE

Removes all storage associated with a table, while leaving the table definition intact. TRUNCATE TABLE auto-commits the current transaction after statement execution and cannot be rolled back.

TRUNCATE TABLE removes all table history preceding the current epoch, regardless of where that data resides (WOS or ROS) or how it is segmented. Immediately after TRUNCATE TABLE returns, AT EPOCH queries on the truncated table return nothing.

Syntax

TRUNCATE TABLE [[database.]schema.]table‑name 

Parameters

[database.]schema

Specifies a schema, by default public. If schema is any schema other than public, you must supply the schema name. For example:

myschema.thisDbObject

If you specify a database, it must be the current database.

table‑name

The name of the anchor table or temporary table to truncate. You cannot truncate an external table.

Privileges

One of the following privileges is required:

  • Superuser
  • Table owner
  • User with USAGE privileges on the table's schema—see GRANT (Schema)

A schema owner can drop a table but cannot truncate a table.

Examples

See Truncating Tables in the Administrator's Guide.