I always wondered what the purpose of that extra “I” was in the CI variables `CI_PIPELINE_IID` and `CI_MERGE_REQUEST_IID` were for. Always assumed it was a data

I always wondered what the purpose of that extra “I” was in the CI variables `CI_PIPELINE_IID` and `CI_MERGE_REQUEST_IID` were for. Always assumed it was a database related choice, but this article confirms it.