Struct Transform 

pub struct Transform {
    pub table: u32,
    pub column: String,
    pub expr: Node,
}

The expression of USING of ALTER COLUMN ... TYPE for one column, as ATPrepAlterColumnType keeps it in tab->newvals.

Fields

table: u32

The OID of the table.

column: String

The name of the column.

expr: Node

The expression before its transform. It refers to the columns of the table by their names, and it gives the old values of the columns.

Trait Implementations

impl Clone for Transform

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Transform

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.