there is a bug when you try sticky pin column group

[890f2151c2be69c51db72017546d00fd]

TanStack Table version

8.13.2

Framework/Library version

18.2.0

Describe the bug and the steps to reproduce it

open https://tanstack.com/table/v8/docs/framework/react/examples/column-pinning-sticky example and group firstname and lastname

const columnHelper = createColumnHelper<Person>();

const defaultColumns: ColumnDef<Person>[] = [
  columnHelper.group({
    id: 'info',
    header: () => <span>Info</span>,
    columns: [
      {
        accessorKey: 'firstName',
        id: 'firstName',
        header: 'First Name',
        cell: (info) => info.getValue(),
        footer: (props) => props.column.id,
        size: 180,
      },
      {
        accessorFn: (row) => row.lastName,
        id: 'lastName',
        cell: (info) => info.getValue(),
        header: () => <span>Last Name</span>,
        footer: (props) => props.column.id,
        size: 180,
      },
    ],
  }),
  {
    accessorKey: 'age',
    id: 'age',
    header: 'Age',
    footer: (props) => props.column.id,
    size: 180,
  },
  {
    accessorKey: 'visits',
    id: 'visits',
    header: 'Visits',
    footer: (props) => props.column.id,
    size: 180,
  },
  {
    accessorKey: 'status',
    id: 'status',
    header: 'Status',
    footer: (props) => props.column.id,
    size: 180,
  },
  {
    accessorKey: 'progress',
    id: 'progress',
    header: 'Profile Progress',
    footer: (props) => props.column.id,
    size: 180,
  },
];

then try pin "info" group info to the left (or right).

Your Minimal, Reproducible Example - (Sandbox Highly Recommended)

https://stackblitz.com/edit/tanstack-table-n7umup?file=src%2Fmain.tsx

Screenshots or Videos (Optional)

Do you intend to try to help solve this bug with your own PR?

None

Terms & Code of Conduct

• I agree to follow this project's Code of Conduct
• I understand that if my bug cannot be reliable reproduced in a debuggable environment, it will probably not be fixed and this issue may even be closed.

[ryanagillie]

Hey! I'm having this same issue. I've also noticed that if you group last name & something else (but not first name) you get a duplicated group header, which doesn't have any way to say it's not pinned (as it inherits the column, which is pinned, but the header is not)

[dogfootruler-kr]

Hey! I confirm that I got the same issue as above. For now I just disabled the possibility to stick column when they are grouped.

The issue is that the column.getStart('left') of the group header return the wrong value (the rightmost child header, left position value) but I couldn't find a fix for it after checking the code :(