xufei created SPARK-30014:
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Summary: for non-default catalog, namespace name is always needed
in a query?
Key: SPARK-30014
URL: https://issues.apache.org/jira/browse/SPARK-30014
Project: Spark
Issue Type: Question
Components: SQL
Affects Versions: 3.0.0
Reporter: xufei
Hi,
I'm trying to write a catalog plugin based on spark-3.0-preview, and I found
even when I use 'use catalog.namespace' to set the current catalog and
namespace, I still need to qualified name in the query.
For example, I add a catalog named 'example_catalog', and there is a database
named 'test' in 'example_catalog', a table 't' in 'example_catalog.test'
I can query the table using 'select * from example_catalog.test.t' under
default catalog(which is spark_catalog)
then I use 'use example_catalog.test' to change the current catalog to
'example_catalog', and the current namespace to 'test'
I that can query the table using 'select * from test.t'
but 'select * from t' failed due to table_not_found exception
I want to known is this an expected behavior? If yes, it sounds a little weird
since I think after 'use example_catalog.test', all the un-qualified
identifiers should be interpreted as 'example_catalog.test.identifier'
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