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 <l...@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 <jes...@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 <ikew...@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^_^ >> > >
