jcsherin commented on code in PR #13059:
URL: https://github.com/apache/datafusion/pull/13059#discussion_r1812524550
##########
datafusion/expr/src/window_frame.rs:
##########
@@ -479,8 +498,123 @@ mod tests {
ast::Expr::Value(ast::Value::Number("1".to_string(), false)),
)))),
};
- let result = WindowFrame::try_from(window_frame);
- assert!(result.is_ok());
+
+ let window_frame = WindowFrame::try_from(window_frame)?;
+ assert_eq!(window_frame.units, WindowFrameUnits::Rows);
+ assert_eq!(
+ window_frame.start_bound,
+ WindowFrameBound::Preceding(ScalarValue::UInt64(Some(2)))
+ );
+ assert_eq!(
+ window_frame.end_bound,
+ WindowFrameBound::Preceding(ScalarValue::UInt64(Some(1)))
+ );
+
+ Ok(())
+ }
+
+ macro_rules! test_bound {
+ ($unit:ident, $value:expr, $expected:expr) => {
+ let preceding = WindowFrameBound::try_parse(
+ ast::WindowFrameBound::Preceding($value),
+ &ast::WindowFrameUnits::$unit,
+ )?;
+ assert_eq!(preceding, WindowFrameBound::Preceding($expected));
+ let following = WindowFrameBound::try_parse(
+ ast::WindowFrameBound::Following($value),
+ &ast::WindowFrameUnits::$unit,
+ )?;
+ assert_eq!(following, WindowFrameBound::Following($expected));
+ };
+ }
+
+ macro_rules! test_bound_err {
+ ($unit:ident, $value:expr, $expected:expr) => {
+ let err = WindowFrameBound::try_parse(
+ ast::WindowFrameBound::Preceding($value),
+ &ast::WindowFrameUnits::$unit,
+ )
+ .unwrap_err();
+ assert_eq!(err.strip_backtrace(), $expected);
+ let err = WindowFrameBound::try_parse(
+ ast::WindowFrameBound::Following($value),
+ &ast::WindowFrameUnits::$unit,
+ )
+ .unwrap_err();
+ assert_eq!(err.strip_backtrace(), $expected);
+ };
+ }
+
+ #[test]
+ fn test_window_frame_bound_creation() -> Result<()> {
+ // Unbounded
+ test_bound!(Rows, None, ScalarValue::Null);
+ test_bound!(Groups, None, ScalarValue::Null);
+ test_bound!(Range, None, ScalarValue::Null);
+
+ // Numeric (Number)
+ let number = Some(Box::new(ast::Expr::Value(ast::Value::Number(
+ "42".to_string(),
+ false,
+ ))));
+ test_bound!(Rows, number.clone(), ScalarValue::UInt64(Some(42)));
+ test_bound!(Groups, number.clone(), ScalarValue::UInt64(Some(42)));
+ test_bound!(
+ Range,
+ number.clone(),
+ ScalarValue::Utf8(Some("42".to_string()))
+ );
+
+ // Numeric (SingleQuotedString)
+ let number =
Some(Box::new(ast::Expr::Value(ast::Value::SingleQuotedString(
+ "42".to_string(),
+ ))));
+ test_bound!(Rows, number.clone(), ScalarValue::UInt64(Some(42)));
+ test_bound!(Groups, number.clone(), ScalarValue::UInt64(Some(42)));
+ test_bound!(
+ Range,
+ number.clone(),
+ ScalarValue::Utf8(Some("42".to_string()))
+ );
+
+ // Non-numeric (SingleQuotedString)
+ let non_numeric = Some(Box::new(ast::Expr::Value(
+ ast::Value::SingleQuotedString("false".to_string()),
+ )));
+ test_bound_err!(
+ Rows,
+ non_numeric.clone(),
+ "Arrow error: Cast error: Cannot cast string 'false' to value of
UInt64 type"
+ );
+ test_bound_err!(
+ Groups,
+ non_numeric.clone(),
+ "Arrow error: Cast error: Cannot cast string 'false' to value of
UInt64 type"
+ );
+ test_bound!(
+ Range,
+ non_numeric.clone(),
+ ScalarValue::Utf8(Some("false".to_string()))
+ );
Review Comment:
I guess this is alright as it is existing behaviour.
When I tried a query with `RANGE INTERVAL 'false' PRECEDING` in
`datafusion-cli` it failed like this:
```sh
type_coercion
caused by
Arrow error: Parser error: Invalid input syntax for type interval: "false"
```
--
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]
