excellent thank you: https://github.com/grafana/grafana/pull/25871/files#diff-ad1ca51923ba5a2e01652c1686ae6797R169
On Fri, Jun 26, 2020 at 7:54 AM Brian Hulette <hulet...@gmail.com> wrote: > Hi Ryan, > Here or user@arrow.apache.orgis a fine place to ask :) > > The metadata on Table/Column/Field objects are all immutable, so doing this > right now would require creating a new instance of Table with the field > renamed, which takes quite a lot of boilerplate. A helper for renaming a > column (or even better a generalization of select [1] that lets you do a > full projection, including column renames) would be a great contribution. > > Here's an example of creating a renamed column, which should get you most > of the way to creating a Table with a renamed column: > https://observablehq.com/@theneuralbit/renaming-an-arrow-column > > Brian > > [1] > > https://github.com/apache/arrow/blob/ff7ee06020949daf66ac05090753e1a17736d9fa/js/src/table.ts#L249 > > On Thu, Jun 25, 2020 at 4:04 PM Ryan McKinley <ryan...@gmail.com> wrote: > > > Apologies if this is the wrong list or place to ask... > > > > What is the best way to update a column name for a Table in javascript? > > > > const col = table.getColumnAt(i); > > col.name = 'new name!' > > > > Currently: Cannot assign to 'name' because it is a read-only property > > > > Thanks! > > > > ryan > > >
