pan3793 commented on code in PR #52819:
URL: https://github.com/apache/spark/pull/52819#discussion_r2510382386
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sql/connect/client/jdbc/src/main/scala/org/apache/spark/sql/connect/client/jdbc/SparkConnectDatabaseMetaData.scala:
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@@ -97,8 +100,7 @@ class SparkConnectDatabaseMetaData(conn:
SparkConnectConnection) extends Databas
override def getTimeDateFunctions: String =
throw new SQLFeatureNotSupportedException
- override def getSearchStringEscape: String =
- throw new SQLFeatureNotSupportedException
+ override def getSearchStringEscape: String = "\\"
Review Comment:
Spark SQL uses backslash as the default escape char for `LIKE` expression,
it also supports custom escape char
https://spark.apache.org/docs/latest/sql-ref-syntax-qry-select-like.html
> ```
> [ NOT ] { LIKE search_pattern [ ESCAPE esc_char ] | [ RLIKE | REGEXP ]
regex_pattern }
> ...
> ```
> ...
> - esc_char
> Specifies the escape character. The default escape character is \.
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