ShowTables Logical Command¶
ShowTables is a logical command that represents SHOW TABLES SQL statement.
SHOW TABLES ((FROM | IN) multipartIdentifier)?
(LIKE? pattern=STRING)?
Note
ShowTables is resolved to ShowTablesExec physical command.
Creating Instance¶
ShowTables takes the following to be created:
- Logical Operator
- Optional Pattern (of tables to show)
ShowTables is created when AstBuilder is requested to visitShowTables.
Output Attributes¶
output: Seq[Attribute]
output is the following attributes:
- namespace
- tableName
output is part of the Command abstraction.