PostgreSQL Batch Example in Go

[giuliocn]

Description:

This Go program demonstrates interacting with a PostgreSQL database using batch operations for improved efficiency. It leverages the pgx/v5 library for database connectivity.

Features:

• Creates a table named ledger to store data (description and amount).
• Executes multiple SQL statements within a single database transaction using pgx.Batch. This includes inserts (INSERT), selects (SELECT), and an aggregate function (SUM).
• Gracefully handles potential errors during database operations.
• Ensures data consistency by using transactions with Begin, Commit, and Rollback.
• Deletes all rows from the ledger table after processing.

[pashagolub]

You may finish your work now. Please, make sure folder structure looks the same as for other examples, e.g. no .md files, please.

[giuliocn]

Thanks @pashagolub I would like to reopen this PR to further improve this example.

[pashagolub]

OK, the pull-request branch was deleted. We need to proceed in the new PR