message: start feature ids at 1
diff: @@ -38,7 +38,7 @@ function createDatabase(assemblies: ReadonlyArray<AssemblySymmetryGraphQL.Assemb
  const clusterRows: Table.Row<typeof Schema.rcsb_assembly_symmetry_cluster>[] = []
  const axisRows: Table.Row<typeof Schema.rcsb_assembly_symmetry_axis>[] = []
  - let id = 0
  + let id = 1 // start feature ids at 1
  for (let i = 0, il = assemblies.length; i < il; ++i) {
  const { assembly_id: _assembly_id, rcsb_assembly_symmetry } = assemblies[i]
  if (!rcsb_assembly_symmetry) continue
  