What are the consequences when trying to retrieve data from Slave if this information has not yet been fully copied from Master?

If you attempt to retrieve data from a Slave (replica) that has not yet been fully synchronized with the Master (main server), the following consequences may occur:

• Incomplete or outdated data: The Slave may return data that does not include the latest changes, as replication has not yet been completed.
• Read errors: In some systems, attempting to access data that is not yet available on the Slave may result in an error or delay.
• Data integrity violation: If an application expects current data but receives outdated data, this can lead to incorrect operation or logical errors.

In the context of Golang and working with databases, it is important to consider replication delay and, if necessary, implement logic to verify data freshness or access the Master for critical read operations.