SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 4) ExpressionList (children 2) Identifier name Identifier engine TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier system.tables Function equals (children 1) ExpressionList (children 2) Identifier database Literal \'test_01191\' ExpressionList (children 1) OrderByElement (children 1) Identifier name