I want to give an update since there have been some new development since
my last email.
We did import Hive's parser into Spark in Feb, but then in April that was
replaced by another ANTLR4 based parser. So the net effect is that this
didn't happen (no release was made with the Hive parser).
Than
(Please use reply-all so I see the replies)
Responses inline.
On Fri, Dec 18, 2015 at 1:17 PM, Yin Huai wrote:
> Let me add Reynold to the thread.
>
> On Fri, Dec 18, 2015 at 12:36 PM, Gopal Vijayaraghavan
> wrote:
>
>>
>> >We have looked into various options, and it looks like the best optio
Let me add Reynold to the thread.
On Fri, Dec 18, 2015 at 12:36 PM, Gopal Vijayaraghavan
wrote:
>
> >We have looked into various options, and it looks like the best option is
> >to copy the ANTLR grammar file from Hive into Spark. Because the grammar
> >file is tightly coupled with Hive's semant
>We have looked into various options, and it looks like the best option is
>to copy the ANTLR grammar file from Hive into Spark. Because the grammar
>file is tightly coupled with Hive's semantic analysis, we need to refactor
>some code to use them so it will end up becoming the .g file plus some
>
Hi Hive devs,
I would like to share with you Spark's plan w.r.t. SQL parser going
forward. As you may (or may not) know, Spark SQL has had two parsers so far:
- a very simple one based on Scala's parser combinator; and
- one that depends on Hive's
The Scala parser combinator one was written quic
