Hi Mark
It’s my understanding that when you do an INSERT OVERWRITE into a partition,
Hive will take out an exclusive lock on the partition and a shared lock on the
table itself. This blocks are read and write operations on the partition, and
allows reads against the other partitions to
Hi Mark,
By atomic operation I gather you mean INSERT/OVERWRITE affects that
partition only?
According to my somehow dated scripts yes you can do that. The idea being
that you only want to overwrite data for that partition ONLY.
--show create table marketData;
--Populate target table
select
Hello Hive users,
We are using AWS Glue as Hive compatible metastore when running queries on
EMR. For Hive external tables we are using AWS S3.
After looking at the docs we didn't find a conclusive answer on whether an
Insert Overwrite table partition is an atomic operation, maybe we've missed
