Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/20370#discussion_r163403070
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRelation.scala
---
@@ -78,7 +78,8 @@ private[sql] object JDBCRelation extends Logging {
// Overflow and silliness can happen if you subtract then divide.
// Here we get a little roundoff, but that's (hopefully) OK.
val stride: Long = upperBound / numPartitions - lowerBound /
numPartitions
- val column = partitioning.column
+ val dialect = JdbcDialects.get(jdbcOptions.url)
+ val column = dialect.quoteIdentifier(partitioning.column)
--- End diff --
We also need to add a test case in `PostgresIntegrationSuite`
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