newKeylessTableReader(ctx context.Context, tbl *doltdb.Table, sch schema.Schema, buffered bool)
: (*keylessTableReader, error)
newKeylessTableReaderForRows(ctx context.Context, rows types.Map, sch schema.Schema, buffered bool)
: (*keylessTableReader, error)
newKeylessTableReaderForPartition(ctx context.Context, tbl *doltdb.Table, sch schema.Schema, start, end uint64)
: (SqlTableReader, error)