Renaming dimension name while ingestion

Apache Druid Q&A Google Groups
#1

I am ingesting directly from a Kafka stream. Can the fields/dimensions in the log be mapped to different dimension names in druid?
For eg. log is { “a” : “1”, “b” : “1”, “c” : “1”} but the dimensions in Druid should be “someA”, “someB” , “someC”.

#2

Yes, you can look at using lookup dimension extraction functions:

http://druid.io/docs/0.8.3/querying/dimensionspecs.html

http://druid.io/docs/0.8.3/querying/lookups.html

Please note this feature is experimental.

#3

How about renaming dimensions during the ingestion time, instead of query time?
Thanks.

Hong

#4

Can we rename dimension while ingesting ?

#5

Hi,

Renaming dimensions while injecting, is there a solution? can it be done?

Right now, i’m injecting data with tranquility, but i misspelled a dimension name, which i would like to change it. But i’m afraid that i will lose data if i stop tranquility.

thanks.

larissa