Adar Dembo has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14273 )

Change subject: add a tool to create table
......................................................................


Patch Set 5:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/14273/5/src/kudu/tools/tool_action_table.cc
File src/kudu/tools/tool_action_table.cc:

http://gerrit.cloudera.org:8080/#/c/14273/5/src/kudu/tools/tool_action_table.cc@897
PS5, Line 897:   RETURN_NOT_OK(reader.ExtractString(reader.root(), "TableName", 
&table_name));
> I know what you mean, thank you. But I have a problem, JsonStringToMessage
OK, I see what you're saying. The problem is that the PB type for a column's 
default value and for the values associated with range splits/partitions are 
dependent on other values in the message (i.e. the column types).

One ugly work around is to define a generic KuduValue PB message which itself 
is a oneof on every possible PK type. That doesn't work super well when 
multiple Kudu types can be represented by a single PB type though (e.g. 
INT8/INT16/INT32 can all be represented by PB int32).

As an alternative, maybe the value is always of type bytes or string (like you 
suggested) and then we'll need to do some follow-on validation and 
deserialization after deserializing the main JSON blob. I think even that is 
still better than the piecemeal approach taken here, because the PB schema is a 
useful artifact that describes the expected structure of the create table 
request.



--
To view, visit http://gerrit.cloudera.org:8080/14273
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Iacd9ae64dc07e3da6efe840e4bbcfaf3df0ecdc7
Gerrit-Change-Number: 14273
Gerrit-PatchSet: 5
Gerrit-Owner: YangSong <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Tidy Bot (241)
Gerrit-Reviewer: YangSong <[email protected]>
Gerrit-Comment-Date: Tue, 24 Sep 2019 00:42:13 +0000
Gerrit-HasComments: Yes

Reply via email to