Github user xuchuanyin commented on the issue:
https://github.com/apache/carbondata/pull/2252
@kumarvishal09
1. There isn't a problem. I've discussed with Jacky and Ravindra, they
agreed that user can specify the longStringColumn by using the
âlong_string_columnsâ property.
They also agreed that we can provide `varchar` for the longStringColumn.
In this initial implementation, I want to keep it simple.
Using `varchar` will have more things to deal with such as dataframe only
has StringType, so I also need to consider the writing DF to CarbonData.
Besides, in Hive document, Hive will truncate varchar/char to specified
length, while in Spark, spark will handle varchar as String.
In a word, if we use varchar, more things need to be considered.
2. yeah, only for text data type now.
@kumarvishal09 As an initial implementation, I think it's already easy to
use for users. How do you think?
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