Jihoon Son created TAJO-1832:
--------------------------------
Summary: Well support for self-describing data formats
Key: TAJO-1832
URL: https://issues.apache.org/jira/browse/TAJO-1832
Project: Tajo
Issue Type: New Feature
Components: Planner/Optimizer
Reporter: Jihoon Son
Assignee: Jihoon Son
*Problem*
Tajo already has a support for self-describing data formats like JSON, Parquet,
or ORC. While they are capable of providing schema information by themselves,
users must define schema to query on them with the current implementation. To
solve this inconvenience, we have to improve our query planner to support
self-describing data formats well.
*Solution*
First, we need to allow omitting schema definition for the create table
statement. When a query is submitted for a self-describing table, the columns
which don't exist in that table will be filled with Nulls.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
