Github user tinkoff-dwh commented on the issue:
https://github.com/apache/zeppelin/pull/2442
@zjffdu
yep, per statement.
for exp.
There is jdbc interpreter per user (postgres).
There are many users and each user has scheme to work.
1. set search_path='#{user}' (default.sessionPrecode)
2. run paragraph `select ...`
the user will work with the correct scheme
or set another variables and values will be available to code in the
paragraph (SET TIME ZONE, custom variables, etc...). User == analitic (usually)
and he doesn't have to write this in the code of paragraph
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