Graphql API Filter

Consider the query below. It works very well. But I would like to filter by “path”

{
  project(fullPath: "dba/dbmanager") {
    name
    mergeRequests{
      edges {
        node {
          mergedAt
          diffStats{
            path
          }
        }
      }
    }
  }
}

How to get only files wich the path is like “/migrations/*.sql”?
All SQL files are in “dba/dbmanager/migrations”
“dba” is a group, “dbmanager” is a repository and migration is a project

Some examples of real files:
“dba/dbmanager/migrations/2021/10/stp_faturarpedido.sql”
“dba/dbmanager/migrations/prescript/prepare.sql”