beliefer commented on a change in pull request #25001: [SPARK-28083][SQL]
Support LIKE ... ESCAPE syntax
URL: https://github.com/apache/spark/pull/25001#discussion_r338423500
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala
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@@ -149,10 +153,17 @@ case class Like(left: Expression, right: Expression)
extends StringRegexExpressi
} else {
val pattern = ctx.freshName("pattern")
val rightStr = ctx.freshName("rightStr")
+ val escapeChar = escapeCharOpt.map { str =>
+ if (str.equals("\"") || str.equals("\\")) {
Review comment:
@HyukjinKwon @maropu I added the comments for explain the double escape.
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