How can I efficiently import CSV data into a PostgreSQL table using Go without loops?

Bulk Insertion of CSV Data into PostgreSQL using Go without Loops

For beginners in Go, an efficient way to import CSV data into a PostgreSQL database table without using loops is with the help of the pgx library. Here's a breakdown:

Open a file descriptor using os.Open(), providing the path to the CSV file.

Establish a connection to the PostgreSQL database using pgx.Connect() with the appropriate credentials.

Utilize the CopyFrom() method of the connection object to initiate the data transfer. Specify the name of the target CSV table and the format as CSV.

Use an io.Reader like os.Stdin to provide the CSV data for copying into the database.

After the copy operation is completed, the number of rows affected can be retrieved to verify the import process.

Note that this approach utilizes the COPY command provided by PostgreSQL for efficient bulk data load operations. It avoids the use of explicit write queries, simplifying the code and enhancing performance.

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