BIT_XOR() OVER ...
All functions > WINDOW FUNCTION > BIT_XOR() OVER ...
Returns the bitwise XOR of integer values in the window frame.
Syntax
BIT_XOR(expr) [FILTER (WHERE condition) | WITHIN (WHERE condition)] OVER ([PARTITION BY expr [, ...]] [ORDER BY sort_item [, ...]] [ROWS|RANGE|GROUPS frame])
Notes
- SQL translation is implemented only when the current SQL backend is DuckDB
- Requires a well-defined window (ORDER BY, and optionally PARTITION BY and frame)
- NULL values are ignored where the underlying window aggregate skips NULLs
- Argument type must be an integer type
See also
Examples
FeatureQL
SELECT
-- Running bitwise XOR
f1 := ZIP(
ARRAY(1, 2, 3, 4) AS id,
ARRAY(30, 10, 20, 5) AS v,
ARRAY(3, 5, 6, 7) AS x
).TRANSFORM(SELECT BIT_XOR(x) OVER (ORDER BY id ASC)).UNWRAP(),
-- Running bitwise XOR counting only rows where v > 15 (10 and 5 excluded from the frame)
f2 := ZIP(
ARRAY(1, 2, 3, 4) AS id,
ARRAY(30, 10, 20, 5) AS v,
ARRAY(3, 5, 6, 7) AS x
).TRANSFORM(SELECT BIT_XOR(x) FILTER (WHERE v > 15) OVER (ORDER BY id ASC)).UNWRAP()
;Result
| f1 ARRAY | f2 ARRAY |
|---|---|
| [3, 6, 0, 7] | [3, 3, 5, 5] |