beliefer commented on code in PR #39660:
URL: https://github.com/apache/spark/pull/39660#discussion_r1082270560
##########
sql/core/src/main/scala/org/apache/spark/sql/jdbc/JdbcDialects.scala:
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@@ -544,6 +544,14 @@ abstract class JdbcDialect extends Serializable with
Logging {
if (limit > 0 ) s"LIMIT $limit" else ""
}
+ /**
+ * MS SQL Server version of `getLimitClause`.
+ * This is only supported by SQL Server as it uses TOP (N) instead.
+ */
+ def getTopExpression(limit: Integer): String = {
Review Comment:
This API looks a little hack.
https://github.com/apache/spark/pull/39667 refactor the API and this PR
could override getSQLText.
cc @cloud-fan @huaxingao
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