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From 吴朱华 <ikew...@gmail.com>
Subject Re: Is there any way to retrieve table metadata using select rather than show?
Date Fri, 07 Apr 2017 04:14:39 GMT
Lars:

I have checked the code, the feature may involve some changes on optimizer
or analyzer side. It's a big change. I am looking forward to make more
minor contribution, just to experience whole process^_^

2017-04-06 21:20 GMT+08:00 Lars Volker <lv@cloudera.com>:

> Adding support to expose the metadata as tables is tracked in IMPALA-1761
> <https://issues.apache.org/jira/browse/IMPALA-1761>. We would welcome
> your contribution to this.
>
> On Thu, Apr 6, 2017 at 3:16 PM, Jeszy <jeszyb@gmail.com> wrote:
>
>> Hey,
>>
>> that's not possible from within impala. If you go directly to the
>> HMS's backing DB, you can query that.
>> What information are you looking for?
>>
>> Thanks.
>>
>> On Thu, Apr 6, 2017 at 3:02 PM, 吴朱华 <ikewu83@gmail.com> wrote:
>> > Hi guys:
>> >
>> > Currently, we are using "show databases","show tables" or "Describe
>> table"
>> > to retrieve table metadata, but we use such as "select * from metadata"
>> to
>> > retrieve, just like RDBMS did^_^
>>
>
>

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