How Can I Optimize Postgres Row Inserts in Go Using a Single Database Connection?

Optimizing Postgres Row Inserts with a Single Database Connection in Go

In Go, the *sql.DB object acts as a connection pool for communicating with a Postgres database, rather than a single direct connection. It manages a set of connections and reuses them for subsequent operations, effectively opening only the necessary number of connections.

However, if you encounter a situation where excessive connections are being opened, causing a slowdown or even a stop in row inserts, the issue may be that connections are not being properly released after use.

The key to resolving this issue lies in the use of Row, which represents a single row returned by a query. When you execute a query that returns rows, using QueryRow instead of Query, you must call the Scan method on the returned Row value to retrieve and process the results.

Solution:

To address this issue and reuse a single database connection for row inserts, the following steps should be taken:

• Use the Exec method if you are not interested in retrieving any results from the insert operation.
• If you need to retrieve results, use the QueryRow method and ensure that you call Scan on the returned *Row value to release the underlying connection.

By following these steps, you can optimize your code and prevent the creation of unnecessary connections, ensuring efficient and reliable row inserts into your Postgres database.

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