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d304e708be
Currently, the first two rows returned by `DiscourseDB#query_array` are silently dropped during the column size check in `DiscourseDB#load_mapping`. This happens because the rows object, while an enumerator, isn't fully compliant, it doesn't rewind during introspection. As a result, calls like `#first`, `#peek`, or `#any?` advance the iterator. Ideally, we’d fix this by updating the `query_array` enumeration implementation. However, customizing the enumerator to be fully compliant would likely introduce unnecessary perf overhead for all use cases. So, this fix works around that limitation by building the map a little differently.
Migrations Tooling
Command line interface
./bin/cli help
Converters
Public converters are stored in lib/converters/.
If you need to run a private converter, put its code into a subdirectory of private/converters/
Development
Installing gems
bundle config set --local with migrations
bundle install
Updating gems
bundle update --group migrations
Running tests
You need to execute rspec in the root of the project.
bin/rspec --default-path migrations/spec