Github user paul-guo- commented on a diff in the pull request:

    https://github.com/apache/incubator-hawq/pull/1047#discussion_r91897627
  
    --- Diff: src/backend/parser/parse_relation.c ---
    @@ -2713,15 +2712,90 @@ warnAutoRange(ParseState *pstate, RangeVar 
*relation, int location)
     void
     ExecCheckRTPerms(List *rangeTable)
     {
    +  if (enable_ranger)
    +  {
    +    if(rangeTable!=NULL)
    +      ExecCheckRTPermsWithRanger(rangeTable);
    +    return;
    +  }
        ListCell   *l;
    -
        foreach(l, rangeTable)
        {
                ExecCheckRTEPerms((RangeTblEntry *) lfirst(l));
        }
     }
     
     /*
    + * ExecCheckRTPerms
    + *   Batch implementation: Check access permissions for all relations 
listed in a range table with enable_ranger is true.
    + */
    +void
    +ExecCheckRTPermsWithRanger(List *rangeTable)
    +{
    +  List *ranger_check_args = NIL;
    +  ListCell *l;
    +  foreach(l, rangeTable)
    +  {
    +
    +    AclMode requiredPerms;
    +    Oid relOid;
    +    Oid userid;
    +    RangeTblEntry *rte = (RangeTblEntry *) lfirst(l);
    +
    +    if (rte->rtekind != RTE_RELATION)
    +      return;
    +    requiredPerms = rte->requiredPerms;
    +    if (requiredPerms == 0)
    +      return;
    +    
    +    relOid = rte->relid;
    +    userid = rte->checkAsUser ? rte->checkAsUser : GetUserId();
    +
    +    RangerPrivilegeArgs *ranger_check_arg = (RangerPrivilegeArgs *) 
palloc(sizeof(RangerPrivilegeArgs));
    +    ranger_check_arg->objkind = ACL_KIND_CLASS;
    +    ranger_check_arg->object_oid = relOid;
    +    ranger_check_arg->roleid = userid;
    +    ranger_check_arg->mask = requiredPerms;
    +    ranger_check_arg->how = ACLMASK_ALL;
    +    ranger_check_args = lappend(ranger_check_args, ranger_check_arg);
    +
    +  } // foreach
    +
    +  // ranger ACL check with package Oids
    +  List *aclresults = NIL;
    +  aclresults = pg_rangercheck_batch(ranger_check_args);
    +  if (aclresults == NIL)
    +  {
    +    elog(ERROR, "ERROR\n");
    --- End diff --
    
    I would think this log does not help debugging much. Could we provide more 
info?


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