SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 1) Literal \'UTC\' (alias timezone) ExpressionList (children 2) Identifier timezone Function equals (children 1) ExpressionList (children 2) Function timeZoneOf (children 1) ExpressionList (children 1) Function now64 (children 1) ExpressionList (children 2) Literal UInt64_3 Identifier timezone Identifier timezone