Github user mariusvniekerk commented on a diff in the pull request:
https://github.com/apache/spark/pull/9137#discussion_r43437555
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/jdbc/JdbcDialects.scala ---
@@ -207,6 +225,25 @@ case object PostgresDialect extends JdbcDialect {
Some(StringType)
} else if (sqlType == Types.OTHER && typeName.equals("jsonb")) {
Some(StringType)
+ } else if (sqlType == Types.OTHER && typeName.equals("uuid")) {
+ Some(StringType)
+ } else if (sqlType == Types.ARRAY) {
+ typeName match {
--- End diff --
The underscores are particularly for the array types. Postgres prepends
them to all array types here
https://github.com/pgjdbc/pgjdbc/blob/REL9_4_1204/org/postgresql/jdbc2/TypeInfoCache.java#L159
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