Jark Wu created FLINK-17909: ------------------------------- Summary: Make the GenericInMemoryCatalog to hold the serialized meta data to uncover more potential bugs Key: FLINK-17909 URL: https://issues.apache.org/jira/browse/FLINK-17909 Project: Flink Issue Type: Improvement Components: Table SQL / API, Table SQL / Planner Reporter: Jark Wu Fix For: 1.11.0
Currently, the builtin {{GenericInMemoryCatalog}} hold the meta objects in HashMap. However, this lead to many bugs when users switch to some persisted catalogs, e.g. Hive Metastore. For example, FLINK-17189, FLINK-17868, FLINK-16021. That is because the builtin {{GenericInMemoryCatalog}} doesn't cover the important path of serialization and deserialization of meta data. We missed some important meta information (PK, time attributes) when serialization and deserialization which lead to bugs. So I propose to hold the serialized meta data in {{GenericInMemoryCatalog}} to cover the serialization and deserializtion path. We may lose some performance here, but {{GenericInMemoryCatalog}} is mostly used in demo/experiment/testing, so I think it's fine. -- This message was sent by Atlassian Jira (v8.3.4#803005)