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From "Anonymous Coward (Code Review)" <>
Subject [Impala-ASF-CR](asf-site) Impala and Hive have slightly different SQL they accept.
Date Thu, 06 Apr 2017 23:30:31 GMT
Anonymous Coward #290 has posted comments on this change.

Change subject: Impala and Hive have slightly different SQL they accept.

Patch Set 1:

The issue we (HivePMC) are trying dealing with is there are several entities with 
copies of Hive code, linking to Hive, or both and at the same time claiming 'Apache Hive Compatibility'.

As I explained 'Apache Hive Compatibility' is not a thing they can assert, 

1. Assuming you are using an unaltered Apache Hive metastore you could say. "Impala stores
it's data in Hive Metastore."
2. Assuming you are using an unaltered apache hive server 2 you could say. " Impala's public
facing interfaces mirror that of Hive X.Y"
3. You could say, "Impala's SQL dialect is very similar to that of Hive SQL." or "Many Apache
Hive queries will run on Impala unaltered", 

First, use Defining Hadoop document as a guideline. Second, as a guideline, imagine Hive was
some large commercial database 'DB2orgres 10Gee', you would be hard pressed to find any other
entity software claiming compatibility with that thing.

To summarize: I appreciate your rapid response. I do realize it is a tag line so you want
to make it 
short and to the point (while of course making Impala sound as awesome as possible). In any
case, I do not want to tell you
what to say, use your best judgement. I hope that helps. The changes are appreciated.

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Gerrit-MessageType: comment
Gerrit-Change-Id: I4e38dc15c31dbb3e297e1d3f9e8251a1fa22d1a7
Gerrit-PatchSet: 1
Gerrit-Project: Impala-ASF
Gerrit-Branch: asf-site
Gerrit-Owner: Jim Apple <>
Gerrit-Reviewer: Anonymous Coward #290
Gerrit-Reviewer: Jim Apple <>
Gerrit-Reviewer: Matthew Jacobs <>
Gerrit-HasComments: No

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