GitHub user Lazycatsu created a discussion: Using Redis to save some custom 
data.

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 ??

GitHub link: https://github.com/apache/superset/discussions/36674

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