Robert Justice created HIVE-5346:
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Summary: Perform some form of data validation to data types on
insert, if users want to enable it.
Key: HIVE-5346
URL: https://issues.apache.org/jira/browse/HIVE-5346
Project: Hive
Issue Type: New Feature
Components: SQL
Affects Versions: 0.11.0
Reporter: Robert Justice
Priority: Minor
We understand that Hive is a "schema on read" type implementation and does not
verify data as it is loaded. However, it would be nice to have a switch to
turn on (off by default) that checks the data be inserted satisfies the data
types defined on the table. Obviously, this might be heavy handed and a
performance hit, but could prevent some problems down the road for users that
make mistakes.
hive> describe test;
OK
col1 smallint
Time taken: 0.11 seconds
hive> insert into table test select count(*) + 43000 as bob from test;
....
hive> select * from test;
OK
-32536
-22535
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