SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 4) ExpressionList (children 3) Identifier a Identifier b Identifier g TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier decimal Function and (children 1) ExpressionList (children 3) Function in (children 1) ExpressionList (children 2) Identifier a Literal UInt64_42 Function in (children 1) ExpressionList (children 2) Identifier b Literal UInt64_42 Function in (children 1) ExpressionList (children 2) Identifier g Literal UInt64_42 Set