srowen commented on a change in pull request #26230: [SPARK-21287][SQL] Move
the validation of fetch size from JDBCOptions to JdbcDialect
URL: https://github.com/apache/spark/pull/26230#discussion_r338575353
##########
File path: sql/core/src/main/scala/org/apache/spark/sql/jdbc/JdbcDialects.scala
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@@ -150,6 +151,20 @@ abstract class JdbcDialect extends Serializable {
def beforeFetch(connection: Connection, properties: Map[String, String]):
Unit = {
}
+ /**
+ * Do some extra properties validation work in addition to the validation
+ * in [[org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions]].
+ * @param properties The connection properties. This is passed through from
the relation.
+ */
+ def validateProperties(properties: Map[String, String]): Unit = {
Review comment:
I think it's OK to leave as-is here.
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