-Mapping nested json objects to map data type
kiran chitturi 2013-03-14, 03:37
I am using Pig 0.10 version and I have a question about mapping nested JSON
objects from Hbase.
*For example: *
The below commands loads the field family from Hbase.
fields = load 'hbase://documents' using
-limit 5') as (rowkey, metadata:map);
The metadata field looks like below after the above command. ( I used
'illustrate fields' to get this)
Map data type worked as I wanted so far. Now, I would like the value for
'fields_j' key to be also a Map data type. I think it is being assigned as
'byteArray' by default.
Is there any way by which I can convert this in to a map data type ? That
would be helpful for me to process more.
I tried to write python UDF but jython only supports python 2.5, I am not
sure how to convert this string in to a dictionary in python.
Did anyone encounter this type of issue before ?
Sorry for the long question, I want to explain my problem clearly.
Please let me know your suggestions.
Harsha 2013-03-14, 03:54
kiran chitturi 2013-03-14, 06:25
Harsha 2013-03-14, 06:51
kiran chitturi 2013-03-14, 15:08
kiran chitturi 2013-03-14, 04:40