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ResultSet

Struct ResultSet 

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pub struct ResultSet { /* private fields */ }
Expand description

Query result set that can be either a row count or streaming data.

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impl ResultSet

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pub fn row_count(&self) -> Option<i64>

Get the row count if this is a row count result.

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pub fn metadata(&self) -> Option<&QueryMetadata>

Get the metadata if this is a streaming result.

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pub fn is_stream(&self) -> bool

Check if this is a streaming result set.

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pub fn into_iterator(self) -> Result<ResultSetIterator, QueryError>

Convert to an iterator over RecordBatches.

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Returns QueryError::NoResultSet if this is not a streaming result.

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pub async fn fetch_all(self) -> Result<Vec<RecordBatch>, QueryError>

Fetch all remaining batches into memory.

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Returns QueryError if fetching fails or if this is not a streaming result.

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impl Debug for ResultSet

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V