Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/10505#discussion_r49171837
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceStrategy.scala
---
@@ -500,11 +569,16 @@ private[sql] object DataSourceStrategy extends
Strategy with Logging {
// For conciseness, all Catalyst filter expressions of type
`expressions.Expression` below are
// called `predicate`s, while all data source filters of type
`sources.Filter` are simply called
// `filter`s.
+ var jdbcRelation = false
--- End diff --
You can do it like:
val jdbcRelation = relation match {
case jdbc: JDBCRelation => jdbcRelation = true
case _ => jdbcRelation = false
}
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