Add Row Level Security to interact with Druid

[zpi1223]

[SIP] Proposal for Add Row Level Security to interact with Druid

Motivation

Currently Superset supports a lot of back-end storage, including

Proposed Change

1. Based on version: 0.28.1
2. A total of 4 files and a storage table are involved:
       a) superset / connectors / druid / models.py
       b) superset / connectors / druid / views.py
       c) superset / viz.py
       d) pydruid / utils / filters.py
       e) Table: row_level_security (role_id, datasource_id, column_value)
3. The interface is as follows:
   [Module]:
   
   [List]:
   
   [Add]:
   
   [Used]:
   
4. Description:
        a) models.py and views.py: for adding modules
        b) viz.py (query_obj): add row-level filtering permissions to the Druid json filter
        c) filters.py (__ init__): adjust the ordering problem in the bound case

[stale]

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