oc7o commented on code in PR #23188:
URL: https://github.com/apache/datafusion/pull/23188#discussion_r3500246815
##########
datafusion/physical-expr/src/expressions/binary.rs:
##########
@@ -1099,6 +1099,20 @@ pub fn binary(
Ok(Arc::new(BinaryExpr::new(lhs, op, rhs)))
}
+fn sql_similar_to_regex(pattern: &str) -> String {
+ let mut result = String::with_capacity(pattern.len() + 6);
+ result.push_str("^(?:");
+ for ch in pattern.chars() {
+ match ch {
+ '%' => result.push_str(".*"),
+ '_' => result.push('.'),
+ c => result.push(c),
Review Comment:
True, I thought that it would be reasonable to also pass regex but we should
just stick with vanilla SQL syntax. This is the way a user would expect it to
be. The translator now escapes all non-wildcard characters.
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