srh commented on code in PR #15836:
URL: https://github.com/apache/datafusion/pull/15836#discussion_r2065080834
##########
datafusion/optimizer/src/simplify_expressions/expr_simplifier.rs:
##########
@@ -1606,8 +1606,9 @@ impl<S: SimplifyInfo> TreeNodeRewriter for Simplifier<'_,
S> {
}))
}
Some(pattern_str)
- if !pattern_str
- .contains(['%', '_',
escape_char].as_ref()) =>
+ if !like.case_insensitive
+ && !pattern_str
+ .contains(['%', '_',
escape_char].as_ref()) =>
{
// If the pattern does not contain any
wildcards, we can simplify the like expression to an equality expression
// TODO: handle escape characters
Review Comment:
I think that comment is referring to parsing escape characters and
performing the optimization on strings with character escapes too.
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