maropu commented on a change in pull request #25001: [SPARK-28083][SQL] Support
LIKE ... ESCAPE syntax
URL: https://github.com/apache/spark/pull/25001#discussion_r300851464
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala
##########
@@ -83,16 +83,19 @@ abstract class StringRegexExpression extends
BinaryExpression
% matches zero or more characters in the input (similar to .* in
posix regular
expressions)
- The escape character is '\'. If an escape character precedes a
special symbol or another
- escape character, the following character is matched literally. It
is invalid to escape
- any other character.
+ The default escape character is '\'. If an escape character precedes
a special symbol
+ or another escape character, the following character is matched
literally. It is
+ invalid to escape any other character.
Review comment:
How about just moving this section into the description for `escape`?
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