agingade commented on a change in pull request #6044:
URL: https://github.com/apache/geode/pull/6044#discussion_r582372036
##########
File path:
geode-core/src/main/java/org/apache/geode/cache/query/internal/CompiledLike.java
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@@ -349,6 +349,30 @@ private String getRegexPattern(String pattern) {
sb.append(ch);
}
break;
+ case '$': // replace with [$]
+ if (prevMetaChar) {
+ sb.append('\\');
+ sb.append('E');
+ prevMetaChar = false;
+ }
+
+ numConsecutiveBackSlash = 0;
+ for (int j = i - 1; j > -1; --j) {
+ if (pattern.charAt(j) == '\\') {
+ ++numConsecutiveBackSlash;
+ } else {
+ break;
+ }
+ }
+
+ // Check if the $ has a valid escape. Backtrack to check for \.
Review comment:
Why "$" needs to be escaped being a literal in like predicate value. The
special characters that are used in LIKE or "_", "%" and "\" these chars needs
to be escaped with escape char "\".
I think we should be able to compare the "$" literal within the like
predicate without escaping it. Please let me know if I am missing anything.
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