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SchemaChange

laminar_connectors::schema::traits

Enum SchemaChange 

Source 
pub enum SchemaChange {
    ColumnAdded {
        name: String,
        data_type: DataType,
        nullable: bool,
    },
    ColumnRemoved {
        name: String,
    },
    TypeChanged {
        name: String,
        old_type: DataType,
        new_type: DataType,
    },
    NullabilityChanged {
        name: String,
        was_nullable: bool,
        now_nullable: bool,
    },
    ColumnRenamed {
        old_name: String,
        new_name: String,
    },
}
Expand description

A single schema change detected by SchemaEvolvable::diff_schemas.

Variants§

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ColumnAdded

A new column was added.

Fields

§name: String

Column name.

§data_type: DataType

The new column’s data type.

§nullable: bool

Whether the column is nullable.

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ColumnRemoved

An existing column was removed.

Fields

§name: String

Column name.

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TypeChanged

A column’s data type changed.

Fields

§name: String

Column name.

§old_type: DataType

Previous data type.

§new_type: DataType

New data type.

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NullabilityChanged

A column’s nullability changed.

Fields

§name: String

Column name.

§was_nullable: bool

Previous nullable flag.

§now_nullable: bool

New nullable flag.

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ColumnRenamed

A column was renamed.

Fields

§old_name: String

Previous name.

§new_name: String

New name.

Trait Implementations§

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impl Clone for SchemaChange

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fn clone(&self) -> SchemaChange

Returns a duplicate 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 Debug for SchemaChange

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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 SchemaChange

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fn eq(&self, other: &SchemaChange) -> 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 SchemaChange

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