• Sean McGivern's avatar
    Migrate MR commits and diffs to new tables · f2d50af9
    Sean McGivern authored
    Previously, we stored these as serialised fields - `st_{commits,diffs}` - on the
    `merge_request_diffs` table. These now have their own tables -
    `merge_request_diff_{commits,diffs}` - with a column for each attribute of the
    serialised data.
    
    Add a background migration to go through the existing MR diffs and migrate them
    to the new format. Ignore any contents that cannot be displayed. Assuming that
    we have 5 million rows to migrate, and each batch of 2,500 rows can be
    completed in 5 minutes, this will take about 7 days to migrate everything.
    f2d50af9
schedule_merge_request_diff_migrations_spec.rb 2.14 KB