Jesus Camacho Rodriguez created HIVE-20677:
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Summary: JDBC storage handler ordering problem - single split flag
Key: HIVE-20677
URL: https://issues.apache.org/jira/browse/HIVE-20677
Project: Hive
Issue Type: Bug
Components: StorageHandler
Reporter: Gunther Hagleitner
Assignee: Jesus Camacho Rodriguez
When Calcite is pushing queries into the JDBC handler splitting the query via
offset/limit can cause issues (RDBMs is not guaranteed to return the data in
the same order every time.)
For these cases we want to:
a) Add a "do not split" flag to the jdbc handler. In that mode jdbc handler
will skip the count and offset/limit processing but just run the query in a
single node. Flag default will be false.
b) Have calcite automatically set this flag.
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