Michael-J-Ward commented on issue #667: URL: https://github.com/apache/datafusion-python/issues/667#issuecomment-2099599913
TLDR: Use the bitwise operators `&` and `|`, which get mapped to the magic methods `__and__` and `__or__`. This is a python quirk [see this table](https://docs.python.org/3/library/stdtypes.html#boolean-operations-and-or-not). - `x or y` means `if x is true, then x, else y` - `x and y` means `if x is false, then x, else y` Basically, the evaluation mechanics make it impossible for `x or y` to create the combined expression you're looking for. ```python a_eq_1 = column("a") == literal(1) a_eq_3 = column("a") == literal(3) print("using `or`:", a_eq_1 or a_eq_3) print("using `and`:", a_eq_1 and a_eq_3) print("using `|`:", a_eq_1 | a_eq_3) print("using `&`:", a_eq_1 & a_eq_3) ``` ```console using `or`: Expr(a = Int64(1)) using `and`: Expr(a = Int64(3)) using `|`: Expr(a = Int64(1) OR a = Int64(3)) using `&`: Expr(a = Int64(1) AND a = Int64(3)) ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
