Tuples in Pretty and Vertical formats should be displayed naturally as subcolumns. #65388
Description
Currently, it works as follows:
clickhouse-cloud :) SELECT 'hello' AS x, (1 AS a, 'world' AS b) AS t
SELECT
'hello' AS x,
(1 AS a, 'world' AS b) AS t
Query id: b86cab0c-9ebf-4af6-b911-66f363ae1d6a
┌─x─────┬─t───────────┐
1. │ hello │ (1,'world') │
└───────┴─────────────┘
I want it to be like follows:
┌─x─────┬─t─────────┐
├───────┼─a─┬─────b─┤
1. │ hello │ 1 │ world │
└───────┴───┴───────┘
Note: it is not exactly the same as flattening tuples. We will display the hierarchy in the header.