REFRESH TABLE

Invalidates the cached entries for Apache Spark cache, which include data and metadata of the given table or view. The invalidated cache is populated in lazy manner when the cached table or the query associated with it is executed again.

Syntax

REFRESH [TABLE] table_name

See Automatic and manual caching for the differences between disk caching and the Apache Spark cache.

Parameters

Examples

-- The cached entries of the table is refreshed
-- The table is resolved from the current schema as the table name is unqualified.
> REFRESH TABLE tbl1;

-- The cached entries of the view is refreshed or invalidated
-- The view is resolved from tempDB schema, as the view name is qualified.
> REFRESH TABLE tempDB.view1;