Leonidas Fegaras created MRQL-81:
------------------------------------
Summary: Fix the coercion of persistent collections to in-memory
bags
Key: MRQL-81
URL: https://issues.apache.org/jira/browse/MRQL-81
Project: MRQL
Issue Type: Bug
Components: Run-Time/Flink, Run-Time/MapReduce, Run-Time/Spark
Affects Versions: 0.9.6
Reporter: Leonidas Fegaras
Assignee: Leonidas Fegaras
Priority: Critical
Currently, query results that are persistent bags (such as Spark RDDs or Flink
DataSets) are coerced to in-memory bags before they are printed. This needs to
be done at any place in the query result. This came out when we used matrix
factorization (query/factorization.mrql) because its output are the two matrix
factors (datasets) in a tuple. It was reported by Ahmed Ulde. It will be fixed
by adding a new case for tuple projection in the query evaluator that coerces
persistent datasets to bags when they appear in the query output.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
