Function renameColumns

renameColumns(node: Expression, mapping: Record<string, string>): Expression
Rename columns in the AST
Parameters
- node: Expression
- mapping: Record<string, string>
Returns Expression
Example
```
const newAst = renameColumns(ast, {
  old_name: 'new_name',
  another_old: 'another_new'
});
```
- Defined in ast/visitor/transformer.ts:249