use fixed length array

[ipinak]

No description provided.

[rubenv]

@ipinak do you have that many migrations that this makes any noticeable difference?

[ipinak]

@ipinak do you have that many migrations that this makes any noticeable difference?

TBH, not a big issue. It just avoids reallocation since you already know the exact length of the array.

[rubenv]

Cleaner to use existingMigrations := make([]*Migration, 0, len(migrationRecords)) so you can still use append in such cases. Also less error-prone.

[rubenv]

Merged, thanks!