[jira] [Assigned] (HAWQ-1279) Force to recompute namespace_path when enable_ranger

["Hongxu Ma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HAWQ-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hongxu Ma reassigned HAWQ-1279:
-------------------------------

    Assignee: Hongxu Ma  (was: Ed Espino)

> Force to recompute namespace_path when enable_ranger
> ----------------------------------------------------
>
>                 Key: HAWQ-1279
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1279
>             Project: Apache HAWQ
>          Issue Type: Sub-task
>          Components: PXF, Security
>            Reporter: Hongxu Ma
>            Assignee: Hongxu Ma
>             Fix For: backlog
>
>
> namespace_path is cached in each psql session and it the cache invalidation is triggered by Grant/Revoke SQL.
> When enable_ranger, Grant/Revoke SQL is no longer use, so the cache prevent a ack-check request sending.
> Example:
> ```
> // create table t(i int); => failed
> [{""resource"":{""database"":""postgres"",""schema"":""pg_catalog""},""privileges"":[""usage""],""allowed"":true}]
> [{""resource"":{""database"":""postgres"",""schema"":""pg_catalog""},""privileges"":[""usage""],""allowed"":true}]
> [{""resource"":{""database"":""postgres"",""schema"":""public""},""privileges"":[""usage""],""allowed"":false}]
> // grant usage and create permissions to public schema in ranger and try again => failed again
> [{""resource"":{""database"":""postgres"",""schema"":""pg_catalog""},""privileges"":[""usage""],""allowed"":true}]
> [{""resource"":{""database"":""postgres"",""schema"":""pg_catalog""},""privileges"":[""usage""],""allowed"":true}]
> // why not send a request for USAGE??
> ```



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