Struct mz_persist_types::schema::Migration

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pub struct Migration(ArrayMigration);
Expand description

See backward_compatible.

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§0: ArrayMigration

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impl Migration

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pub fn contains_drop(&self) -> bool

Returns true if the migration requires dropping data, including nested structs.

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pub fn preserves_order(&self) -> bool

Returns true if the output array will preserve the input’s sortedness.

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pub fn migrate(&self, array: Arc<dyn Array>) -> Arc<dyn Array>

For the old and new schemas used at construction time, migrates data encoded by old to be the same arrow DataType as data encoded by new.

Trait Implementations§

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impl Debug for Migration

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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 PartialEq for Migration

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

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

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 Migration

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