3.7.0-rc 3.6.0 (latest) 3.5.0 3.4.0 3.3.0 3.2.0 2.48.0-rc 2.47.1 2.46.0 2.45.0 2.44.0 2.43.0 2.42.0 2.41.0 2.40.0 2.39.0 2.38.0 2.37.0 2.36.0 2.35.0 2.34.0 2.33.0 2.32.0 2.31.0 2.30.0 2.29.0 2.28.0 2.27.0 2.26.0 2.25.1 2.24.0 2.23.0 2.22.1 2.21.0 2.20.0 2.19.0 2.18.0 2.17.0 2.16.0 2.15.1 2.14.0 2.13.0 2.12.0 2.11.0 Represents the stream of `Rows` returned from [`spanner::Client::Read()`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1Client#classgoogle_1_1cloud_1_1spanner_1_1Client_1a167955c44cd3ccb46ffe07cad6e7e52b) or [`spanner::Client::ExecuteQuery()`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1Client#classgoogle_1_1cloud_1_1spanner_1_1Client_1a8e2afee42f535c0436d9161c54b84179).
This is a range defined by the [Input Iterators](https://en.cppreference.com/w/cpp/named_req/InputIterator) returned from its [`begin()`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1RowStream#classgoogle_1_1cloud_1_1spanner_1_1RowStream_1a5df651a9a15426ab85319bac3dafb1a4) and [`end()`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1RowStream#classgoogle_1_1cloud_1_1spanner_1_1RowStream_1af04557caf2f8c132e80dbb89222c1ebc) members. Callers may directly iterate the [`RowStream`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1RowStream) instance, which will return a sequence of [`StatusOr`](https://docs.cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1StatusOr.html)`<`[`Row`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1Row)`>` objects.

For convenience, callers may wrap instances in a `StreamOf<std::tuple<...>>` object, which will automatically parse each [`Row`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1Row) into a `std::tuple` with the specified types.

## Constructors

### RowStream()

### RowStream(std::unique_ptr\< ResultSourceInterface \>)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `source` | `std::unique_ptr< ResultSourceInterface >` |

### RowStream(RowStream \&\&)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
|   | `RowStream &&` |

## Operators

### operator=(RowStream \&\&)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
|   | `RowStream &&` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `RowStream &` |   |

## Functions

### begin()

Returns a [`RowStreamIterator`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1RowStreamIterator) defining the beginning of this range.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `RowStreamIterator` |   |

### end()

Returns a [`RowStreamIterator`](https://docs.cloud.google.com/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1RowStreamIterator) defining the end of this range.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `RowStreamIterator` |   |

### RowsModified() const

Returns the number of rows modified by a DML statement.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `std::int64_t` |   |

### ReadTimestamp() const

Retrieves the timestamp at which the read occurred.

> [!NOTE]
> **Note:** Only available if a read-only transaction was used.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `std::optional< Timestamp >` |   |