Hope you are doing great. !
i have tried few sceneros after adding a new fields and assigning a default values. I have few doubts around it
- What could be the default values w.r.t datatype ? I think we have to specify while schema evolving
Datatye and Default values
Int = -1 ?
string = BLANK or NULL ?
NULL = NULL
FLOAT = -1.0 ?
DOUBLE = ?
BYTES = ?
What types of scenarios should i cover to become confident on that topic.?
Lets see i have .avsc schema file and i want to create a hive table by using, how would i specify that schema file in TBLPROPERTIES ? How to specify the NN location and all
I videos we are following that pattern as it is localhost
CREATE EXTERNAL TABLE customers
STORED AS AVRO