kosiew commented on code in PR #962:
URL: https://github.com/apache/datafusion-python/pull/962#discussion_r1881280309
##########
python/datafusion/functions.py:
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@@ -1108,6 +1109,11 @@ def arrow_typeof(arg: Expr) -> Expr:
return Expr(f.arrow_typeof(arg.expr))
+def arrow_cast(expr: Expr, data_type: Expr) -> Expr:
+ """Casts an expression to a specified data type."""
+ return Expr(f.arrow_cast(expr.expr, data_type.expr))
+
+
Review Comment:
From my understanding, arrow_cast can cast to certain arrow types that
Expr.cast cannot, eg Int8 as mentioned in
https://github.com/apache/datafusion/issues/5016
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