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PostgreSQL provides three JDBC DataSource implementations, namely; PGConnectionPoolDataSource, PGPoolingDataSource, and PGSimpleDataSource. However, their implementations for Their pooling data sources source implementations are deprecated, and you should use a more modern connection pooling implementation, such as those described in the Examples section.

To wire it those up:

• use org.postgresql.Driver as the driverClassName.

• use a JDBC URL based on the following format: jdbc:postgresql://[hostname]:[port]/[database][?properties]

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