Github user bomeng commented on a diff in the pull request:
https://github.com/apache/spark/pull/12252#discussion_r59819746
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala
---
@@ -246,13 +247,23 @@ object JdbcUtils extends Logging {
}
/**
+ * The utility to add quote to the column name based on its dialect
+ * @param dialect the JDBC dialect
+ * @param columnName the input column name
+ * @return the quoted column name
+ */
+ private def quoteColumnName(dialect: JdbcDialect, columnName: String):
String = {
+ dialect.quoteIdentifier(columnName)
+ }
+
+ /**
* Compute the schema string for this RDD.
*/
- def schemaString(df: DataFrame, url: String): String = {
+ def schemaString(dialect: JdbcDialect, df: DataFrame, url: String):
String = {
val sb = new StringBuilder()
val dialect = JdbcDialects.get(url)
--- End diff --
The purpose to pass in dialect is to get proper quote for columns based on
its data source. Any suggestion?
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