CompanyMerge
shell_pk/canonical_pk snapshots ratherthan the FKs: the FKs are
SET_NULL, so they go blank if either companyrow is ever hard-deleted, while the snapshots keep the record self-describing.
{
"id": 0,
"shell_id": 0,
"canonical_id": 0,
"shell_name": "string",
"canonical_name": "string",
"pattern": "string",
"confidence": 0,
"merged_at": "2019-08-24T14:15:22.123Z",
"reversed_at": "2019-08-24T14:15:22.123Z",
"updated_at": "2019-08-24T14:15:22.123Z"
}