Sree Harsha Ramanavarapu created CALCITE-6809:
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Summary: 8 table join with jdbc connections hangs
Key: CALCITE-6809
URL: https://issues.apache.org/jira/browse/CALCITE-6809
Project: Calcite
Issue Type: Bug
Components: core
Reporter: Sree Harsha Ramanavarapu
Attachments: 8-join-plan.txt, bug-with8-join.png
We are trying to generate a plan with an eight table join. This results in a
hang. Please see the attached plans.
We are retreiving data from two different sources, one is a custom local memory
table (MemoryTableScan) and others are JdbcTableScans. Caclite is waiting for
EnumerableNestedLoop's inner table to respond. But it has already exhausted
the connection pool and is just waiting for a new connection.
The problem we are facing is similar to the one described in
https://issues.apache.org/jira/browse/CALCITE-1739
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