openGauss-connector-jdbc/docs/documentation/head/thread.md

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layout	title	header	resource	previoustitle	previous	nexttitle	next
default_docs	Chapter 10. Using the Driver in a Multithreaded or a Servlet Environment	Chapter 10. Using the Driver in a Multithreaded or a Servlet Environment	media	Server Prepared Statements	server-prepare.html	Chapter 11. Connection Pools and Data Sources	datasource.html

The PostgreSQL™ JDBC driver is not thread safe. The PostgreSQL server is not threaded. Each connection creates a new process on the server; as such any concurrent requests to the process would have to be serialized. The driver makes no guarantees that methods on connections are synchronized. It will be up to the caller to synchronize calls to the driver.

A notable exception is org/postgresql/jdbc/TimestampUtils.java which is threadsafe.