shehabgamin commented on code in PR #14268:
URL: https://github.com/apache/datafusion/pull/14268#discussion_r1933060341
##########
datafusion/functions/src/string/bit_length.rs:
##########
@@ -55,7 +58,10 @@ impl Default for BitLengthFunc {
impl BitLengthFunc {
pub fn new() -> Self {
Self {
- signature: Signature::string(1, Volatility::Immutable),
+ signature: Signature::coercible(
Review Comment:
See here:
https://github.com/apache/datafusion/pull/14268#discussion_r1933055108
But yes I agree, the documentation should be clearer. I had to dig into the
code to get a solid understanding of the behavior.
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