Struct mz_persist_types::dyn_struct::DynStructCfg

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

The schema of a “dynamic” columnar struct.

Here, dynamic is used to mean that, unlike most Data impls, the columnar schema of this type is not inferrable purely from the type. Instead, it needs supplementary crate::columnar::ColumnCfg.

This exists because, among other reasons, mz’s Row type does not declare the schema at the type level (as opposed to something like Row(u64, i32)).

TODO(parkmycar): Remove this and all DynStruct* friends once crate::columnar::Schema2 is fully flushed out.

Trait Implementations§

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impl Clone for DynStructCfg

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fn clone(&self) -> DynStructCfg

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl ColumnCfg<DynStruct> for DynStructCfg

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fn as_type(&self) -> DataType

Returns the DataType for an instance of T with this configuration.
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impl ColumnCfg<Option<DynStruct>> for DynStructCfg

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fn as_type(&self) -> DataType

Returns the DataType for an instance of T with this configuration.
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impl Debug for DynStructCfg

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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 From<Vec<(String, DataType, StatsFn)>> for DynStructCfg

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fn from(value: Vec<(String, DataType, StatsFn)>) -> Self

Converts to this type from the input type.
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impl PartialEq for DynStructCfg

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fn eq(&self, other: &DynStructCfg) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for DynStructCfg

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

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Gets the TypeId of self. Read more
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Performs the cast.
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