SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 6) Identifier ip Identifier ipv6 Identifier cblock Identifier cblock1 Identifier is_ipv6 Function cutIPv6 (children 1) ExpressionList (children 3) Identifier ipv6 Literal UInt64_10 Literal UInt64_1 TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier ipv6_test26473