mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 19:02:04 +00:00
795 B
795 B
slug | sidebar_position | sidebar_label |
---|---|---|
/en/sql-reference/table-functions/merge | 38 | merge |
merge
Creates a temporary Merge table. The table structure is taken from the first table encountered that matches the regular expression.
Syntax
merge('db_name', 'tables_regexp')
Arguments
-
db_name
— Possible values:- database name,
- constant expression that returns a string with a database name, for example,
currentDatabase()
, REGEXP(expression)
, whereexpression
is a regular expression to match the DB names.
-
tables_regexp
— A regular expression to match the table names in the specified DB or DBs.
See Also
- Merge table engine