feat(sqlite): implement bitwise xor and bitwise not

Author: cpcloud

ibis/backends/sqlite/registry.py

@@ -359,5 +359,8 @@ def _time_from_hms(t, expr):
         ops.Degrees: unary(sa.func._ibis_sqlite_degrees),
         ops.Radians: unary(sa.func._ibis_sqlite_radians),
         ops.Clip: _clip(min_func=sa.func.min, max_func=sa.func.max),
+        # sqlite doesn't implement a native xor operator
+        ops.BitwiseXor: fixed_arity(sa.func._ibis_sqlite_xor, 2),
+        ops.BitwiseNot: unary(sa.func._ibis_sqlite_inv),
     }
 )

ibis/backends/sqlite/udf.py

@@ -291,6 +291,16 @@ def _ibis_sqlite_radians(x):
     return None if x is None else math.radians(x)
 
 
+@udf
+def _ibis_sqlite_xor(x, y):
+    return None if x is None or y is None else x ^ y
+
+
+@udf
+def _ibis_sqlite_inv(x):
+    return None if x is None else ~x
+
+
 class _ibis_sqlite_var:
     def __init__(self, offset):
         self.mean = 0.0