Using Redis to save some custom data.

[Lazycatsu]

What I have. A have a lot of datasets, where I use, for example, one table. I want to rename this table in one place and it have to be changed everywhere.

My proposal:

1. Use table name as macros. Something like that:

{% var_tab = get_table_name("my_table") %}
SELECT my_column
FROM {{ var_tab }}

2. add macro function get_table_name(tab) in superset_config.py
3. for the purpose not create everytime connection to db and use fastest working - use Redis (now it used for cache) and just add my fixed keys

The problem is - how can I get existing client of Redis ??

May be I can create, somehow, Redis client on global or session level?