pan3793 commented on code in PR #56688:
URL: https://github.com/apache/spark/pull/56688#discussion_r3456851344
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sql/connect/client/jdbc/src/main/scala/org/apache/spark/sql/connect/client/jdbc/SparkConnectDatabaseMetaData.scala:
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@@ -598,14 +598,51 @@ class SparkConnectDatabaseMetaData(conn:
SparkConnectConnection) extends Databas
catalog: String, schema: String, table: String): ResultSet =
throw new SQLFeatureNotSupportedException
- override def getPrimaryKeys(catalog: String, schema: String, table: String):
ResultSet =
- throw new SQLFeatureNotSupportedException
+ // Spark has no primary keys, so return an empty result set with the JDBC
schema
Review Comment:
Spark actually supports primary key, see SPARK-51207
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