Struct arrow::ipc::gen::Message::DictionaryBatch [−][src]
pub struct DictionaryBatch<'a> { pub _tab: Table<'a>, }
For sending dictionary encoding information. Any Field can be dictionary-encoded, but in this case none of its children may be dictionary-encoded. There is one vector / column per dictionary, but that vector / column may be spread across multiple dictionary batches by using the isDelta flag
Fields
_tab: Table<'a>
Implementations
impl<'a> DictionaryBatch<'a>
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impl<'a> DictionaryBatch<'a>
[src]pub fn init_from_table(table: Table<'a>) -> Self
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pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr>(
_fbb: &'mut_bldr mut FlatBufferBuilder<'bldr>,
args: &'args DictionaryBatchArgs<'args>
) -> WIPOffset<DictionaryBatch<'bldr>>
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_fbb: &'mut_bldr mut FlatBufferBuilder<'bldr>,
args: &'args DictionaryBatchArgs<'args>
) -> WIPOffset<DictionaryBatch<'bldr>>
pub const VT_ID: VOffsetT
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pub const VT_DATA: VOffsetT
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pub const VT_ISDELTA: VOffsetT
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pub fn id(&self) -> i64
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pub fn data(&self) -> Option<RecordBatch<'a>>
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pub fn isDelta(&self) -> bool
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If isDelta is true the values in the dictionary are to be appended to a dictionary with the indicated id. If isDelta is false this dictionary should replace the existing dictionary.
Trait Implementations
impl<'a> Clone for DictionaryBatch<'a>
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impl<'a> Clone for DictionaryBatch<'a>
[src]fn clone(&self) -> DictionaryBatch<'a>
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl<'a> Copy for DictionaryBatch<'a>
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impl<'a> Copy for DictionaryBatch<'a>
[src]impl<'a> Follow<'a> for DictionaryBatch<'a>
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impl<'a> Follow<'a> for DictionaryBatch<'a>
[src]impl<'a> PartialEq<DictionaryBatch<'a>> for DictionaryBatch<'a>
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impl<'a> PartialEq<DictionaryBatch<'a>> for DictionaryBatch<'a>
[src]fn eq(&self, other: &DictionaryBatch<'a>) -> bool
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fn ne(&self, other: &DictionaryBatch<'a>) -> bool
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impl<'a> StructuralPartialEq for DictionaryBatch<'a>
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impl<'a> StructuralPartialEq for DictionaryBatch<'a>
[src]impl Verifiable for DictionaryBatch<'_>
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impl Verifiable for DictionaryBatch<'_>
[src]fn run_verifier(
v: &mut Verifier<'_, '_>,
pos: usize
) -> Result<(), InvalidFlatbuffer>
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v: &mut Verifier<'_, '_>,
pos: usize
) -> Result<(), InvalidFlatbuffer>
Auto Trait Implementations
impl<'a> RefUnwindSafe for DictionaryBatch<'a>
impl<'a> RefUnwindSafe for DictionaryBatch<'a>
impl<'a> Send for DictionaryBatch<'a>
impl<'a> Send for DictionaryBatch<'a>
impl<'a> Sync for DictionaryBatch<'a>
impl<'a> Sync for DictionaryBatch<'a>
impl<'a> Unpin for DictionaryBatch<'a>
impl<'a> Unpin for DictionaryBatch<'a>
impl<'a> UnwindSafe for DictionaryBatch<'a>
impl<'a> UnwindSafe for DictionaryBatch<'a>