Configure the connection pool size and overflow when connecting to Cloud SQL for PostgreSQL by using SQLAlchemy.
For detailed documentation that includes this code sample, see the following:
# Pool size is the maximum number of permanent connections to keep. pool_size=5, # Temporarily exceeds the set pool_size if no connections are available. max_overflow=2, # The total number of concurrent connections for your application will be # a total of pool_size and max_overflow.
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