Jesus Camacho Rodriguez created CALCITE-3999:
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Summary: Simplify DialectPool implementation
Key: CALCITE-3999
URL: https://issues.apache.org/jira/browse/CALCITE-3999
Project: Calcite
Issue Type: Improvement
Components: core
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
JdbcUtils contains a pool to cache SqlDialect objects. Currently, it relies on
multiple maps and a synchronized {{get}} method. Although I am not very
familiar with that code, it seems the implementation could be made simpler and
more efficient by using a Guava cache. In addition, since we would not have a
single synchronized get method, multiple threads could concurrently create
dialects for distinct data sources.
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