[GitHub] [incubator-wayang] kbeedkar opened a new pull request, #308: SQL API extensions to support joins

["kbeedkar (via GitHub)" <gi...@apache.org>]

kbeedkar opened a new pull request, #308:
URL: https://github.com/apache/incubator-wayang/pull/308

   This PR makes extends the SQL API to also handle joins.
   
   - Algebraic Joins are transpiled to Wayang Join Operator
   - Since the JoinOperator outputs a Tuple2<Record, Record>, the join is fused with a MapOperator to output <Record>
   - This is required to have downstream operations on joins such as projections/aggregations.
   
   With this PR merged, Wayang can now support simple and basic SPJ queries for decoupled JDBC sources and CSV data sources.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscribe@wayang.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org

[GitHub] [incubator-wayang] zkaoudi merged pull request #308: SQL API extensions to support joins

["zkaoudi (via GitHub)" <gi...@apache.org>]

zkaoudi merged PR #308:
URL: https://github.com/apache/incubator-wayang/pull/308


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscribe@wayang.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org