SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 4) ExpressionList (children 1) Asterisk TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier data_02021 Function or (children 1) ExpressionList (children 2) Literal UInt64_0 Function ignore (children 1) ExpressionList (children 1) Identifier key Function equals (children 1) ExpressionList (children 2) Identifier key Literal UInt64_1