Xuefu Zhang created FLINK-10697:
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Summary: Create an in-memory catalog that stores Flink's meta
objects
Key: FLINK-10697
URL: https://issues.apache.org/jira/browse/FLINK-10697
Project: Flink
Issue Type: Sub-task
Components: Table API & SQL
Affects Versions: 1.6.1
Reporter: Xuefu Zhang
Currently all Flink meta objects (currently tables only) are stored in memory
as part of Calcite catalog. Those objects are temporary (such as inline
tables), others are meant to live beyond user session. As we introduce catalog
for those objects (tables, views, and UDFs), it makes sense to organize them
neatly. Further, having a catalog implementation that store those objects in
memory is to retain the currently behavior, which can be configured by user.
Please note that this implementation is different from the current
{{InMemoryExternalCatalog}, which is used mainly for testing and doesn't
reflect what's actually needed for Flink meta objects.
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