[EuiTable] Not clear description prop use

[dej611]

I've tried to use the description prop in a EuiBasicTable and was expecting to have it set as title for the column, but it seems ignored.

In the prop documentation it mentions:

A description of the column (will be presented as a title over the column header)

But then in the EuiBasicTable code the prop gets extracted but not used:

eui/src/components/basic_table/basic_table.tsx

Line 1288 in bca5946

description,

Live example:
https://codesandbox.io/s/friendly-wing-8fd1v?fontsize=14&hidenavigation=1&theme=dark

[elizabetdev]

Hi @dej611,

I tried to investigate this issue and I believe this functionality never worked.

When the EuiBasicTable was introduced in #377 I can see a description prop for (FieldDataColumn | ComputedColumn | ActionsColumn)[] but it was only implemented properly in the ActionsColumn.

The code evolved and was migrated to TS and it seems that this issue was never fixed. The DefaultItemAction is the only one with the description prop properly implemented.

eui/src/components/basic_table/default_item_action.tsx

Lines 114 to 117 in 43ccf53

	return enabled && action.description ? (
	<EuiToolTip content={action.description} delay="long">
	{button}
	</EuiToolTip>

With that said, we need to fix the code to allow the description to be presented as a title over the column header.

[hetanthakkar]

Working on this