Serge Rielau created SPARK-57109:
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Summary: Remove SYSTEM.SESSION from SYSTEM_PATH virtual schema
Key: SPARK-57109
URL: https://issues.apache.org/jira/browse/SPARK-57109
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 4.2.0
Reporter: Serge Rielau
Fix For: 4.2.0
Currently SYSTEM_PATH holds SYSTEM.BUILTIN and SYSTEM.SESSION.
The purpose of the system path is to make access to system objects easy
(especially in a future where we have more than one schema (e.g. SYSTEM.AI, or
SYSTEM.ML, SYSTEM.GEO). The objects in SYSTEM.SESSION however are user defined.
There is another reason to remove SYSTEM.SESSION from this as well: It seems
liek a best practice to encourse references to temporray tables to be qualified
by session, so they are not be confused or shadowed.
In that case including system.session in the system path which is the most
basic path one has to use, would be counter productive.
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