Table function is a method of constructing a table.
You can use table functions in:
CREATE TABLE AS
It's one of the methods of creating a table.
FROM clause of the
The method of creating a temporary table, that is available only in current query. The table is deleted after the query finishes.
You can't use table functions if the allow_ddl setting is disabled.
|file||Creates a File-engine table.|
|merge||Creates a Merge-engine table.|
|numbers||Creates a table with the single column filled with integer numbers.|
|remote||Allows you to access remote servers without creating a Distributed-engine table.|
|url||Creates a Url-engine table.|
|mysql||Creates a MySQL-engine table.|
|jdbc||Creates a JDBC-engine table.|
|odbc||Creates a ODBC-engine table.|
|hdfs||Creates a HDFS-engine table.|