Struct SchemaEvolution 

pub struct SchemaEvolution {
    pub renames: Vec<RenameColumnRequest>,
    pub adds: Vec<AddColumnRequest>,
}

Atomic schema evolution transaction applied in a single metadata.json rewrite.

Operations are applied in order: renames first (so you can rename a column and also add a new column with the old name in one call), then additions.

Fields

renames: Vec<RenameColumnRequest>

adds: Vec<AddColumnRequest>

Implementations

impl SchemaEvolution

pub fn new() -> Self

pub fn add_column(self, req: AddColumnRequest) -> Self

pub fn rename_column( self, old_name: impl Into<String>, new_name: impl Into<String>, ) -> Self

Trait Implementations

impl Default for SchemaEvolution

fn default() -> SchemaEvolution

Returns the “default value” for a type.