code: func PgTsConfigMapByMapcfgMaptokentypeMapseqno(db XODB, mapcfg pgtypes.Oid, maptokentype int, mapseqno int) (*PgTsConfigMap, error) {
  	var err error
  
  	// sql query
  	const sqlstr = `SELECT ` +
  		`tableoid, cmax, xmax, cmin, xmin, ctid, mapcfg, maptokentype, mapseqno, mapdict ` +
  		`FROM pg_catalog.pg_ts_config_map ` +
  		`WHERE mapcfg = $1 AND maptokentype = $2 AND mapseqno = $3`
  
  	// run query
  	XOLog(sqlstr, mapcfg, maptokentype, mapseqno)
  	ptcm := PgTsConfigMap{}
  
  	err = db.QueryRow(sqlstr, mapcfg, maptokentype, mapseqno).Scan(&ptcm.Tableoid, &ptcm.Cmax, &ptcm.Xmax, &ptcm.Cmin, &ptcm.Xmin, &ptcm.Ctid, &ptcm.Mapcfg, &ptcm.Maptokentype, &ptcm.Mapseqno, &ptcm.Mapdict)
  	if err != nil {
  		return nil, err
  	}
  
  	return &ptcm, nil
  }
docs: // PgTsConfigMapByMapcfgMaptokentypeMapseqno retrieves a row from 'pg_catalog.pg_ts_config_map' as a PgTsConfigMap.
  //
  // Generated from index 'pg_ts_config_map_index'.