Add clarification that for multi-allelic sites, you will get extra rows for the genotype 0 (#325)
Add clarification that for multi-allelic sites, you will get extra rows for the genotype 0 (#325)

In the query with the LEFT JOIN on the alternate bases, when filtering by a_index it should filter correctly for nonzero alleles, but it will create extra rows for genotype 0 for multi-allelic sites (where there's multiple alternate bases).
googlegenomics/gcp-variant-transforms,googlegenomics/gcp-variant-transforms