pub struct DictDecoder<T: DataType> { /* fields omitted */ }
Dictionary decoder.
The dictionary encoding builds a dictionary of values encountered in a given column.
The dictionary is be stored in a dictionary page per column chunk.
See DictEncoder
for more information.
Creates new dictionary decoder.
Decodes and sets values for dictionary using decoder
decoder.
Sets the data to decode to be data
, which should contain num_values
of values to decode. Read more
Consumes values from this decoder and write the results to buffer
. This will try to fill up buffer
. Read more
Number of values left in this decoder stream
Returns the encoding for this decoder.
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T, U> TryInto for T where U: TryFrom<T>, | |
type Err = <U as TryFrom<T>>::Err