Struct rusoto_dynamodb::QueryOutput
source · [−]pub struct QueryOutput {
pub consumed_capacity: Option<ConsumedCapacity>,
pub count: Option<i64>,
pub items: Option<Vec<HashMap<String, AttributeValue>>>,
pub last_evaluated_key: Option<HashMap<String, AttributeValue>>,
pub scanned_count: Option<i64>,
}
Expand description
Represents the output of a Query
operation.
Fields
consumed_capacity: Option<ConsumedCapacity>
The capacity units consumed by the Query
operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation. ConsumedCapacity
is only returned if the ReturnConsumedCapacity
parameter was specified. For more information, see Provisioned Throughput in the Amazon DynamoDB Developer Guide.
count: Option<i64>
The number of items in the response.
If you used a QueryFilter
in the request, then Count
is the number of items returned after the filter was applied, and ScannedCount
is the number of matching items before the filter was applied.
If you did not use a filter in the request, then Count
and ScannedCount
are the same.
items: Option<Vec<HashMap<String, AttributeValue>>>
An array of item attributes that match the query criteria. Each element in this array consists of an attribute name and the value for that attribute.
last_evaluated_key: Option<HashMap<String, AttributeValue>>
The primary key of the item where the operation stopped, inclusive of the previous result set. Use this value to start a new operation, excluding this value in the new request.
If LastEvaluatedKey
is empty, then the "last page" of results has been processed and there is no more data to be retrieved.
If LastEvaluatedKey
is not empty, it does not necessarily mean that there is more data in the result set. The only way to know when you have reached the end of the result set is when LastEvaluatedKey
is empty.
scanned_count: Option<i64>
The number of items evaluated, before any QueryFilter
is applied. A high ScannedCount
value with few, or no, Count
results indicates an inefficient Query
operation. For more information, see Count and ScannedCount in the Amazon DynamoDB Developer Guide.
If you did not use a filter in the request, then ScannedCount
is the same as Count
.
Trait Implementations
sourceimpl Clone for QueryOutput
impl Clone for QueryOutput
sourcefn clone(&self) -> QueryOutput
fn clone(&self) -> QueryOutput
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for QueryOutput
impl Debug for QueryOutput
sourceimpl Default for QueryOutput
impl Default for QueryOutput
sourcefn default() -> QueryOutput
fn default() -> QueryOutput
Returns the “default value” for a type. Read more
sourceimpl<'de> Deserialize<'de> for QueryOutput
impl<'de> Deserialize<'de> for QueryOutput
sourcefn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
sourceimpl PartialEq<QueryOutput> for QueryOutput
impl PartialEq<QueryOutput> for QueryOutput
sourcefn eq(&self, other: &QueryOutput) -> bool
fn eq(&self, other: &QueryOutput) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &QueryOutput) -> bool
fn ne(&self, other: &QueryOutput) -> bool
This method tests for !=
.
impl StructuralPartialEq for QueryOutput
Auto Trait Implementations
impl RefUnwindSafe for QueryOutput
impl Send for QueryOutput
impl Sync for QueryOutput
impl Unpin for QueryOutput
impl UnwindSafe for QueryOutput
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more