Major Description
Carbon1.3.0 Concurrent Load-Alter: user is able to Alter table even if insert/load job is running.
Steps: 1: Create a table
2: Start a insert job
3: Concurrently Alter the table(add,drop,rename)
4: Observe that alter is success
5: Observe that insert job is running and after some times job fails if table is renamed otherwise alter is success(for add,drop column)
Expected behvaiour: drop job should wait for insert job to complete