Method getDistinctFileLanguages

src/db/queries.ts:1099–1102

* Distinct languages present in the files table. One indexed aggregate — * lets the dynamic-edge synthesizers skip passes for languages the project * doesn't contain at all (a Kotlin pass has no work on a pure-C repo), so * their cost is zero rather than a full-graph scan that finds nothing

()

   * their cost is zero rather than a full-graph scan that finds nothing (#1212).
   */
  getDistinctFileLanguages(): Set<string> {
    const rows = this.db.prepare('SELECT DISTINCT language FROM files').all() as Array<{ language: string }>;
    return new Set(rows.map((r) => r.language));
  }

  /**
   * Get nodes by exact name match (uses idx_nodes_name index)