After Running the Query there is no option for Timestamp > Choose Column > "No result"
Kindly see Image.
Since I'm going to use the timestamp column well "Timestamp"
currently beginner here
DB Connect can't parse the column names out of your SQL. It's a tedious rewrite, but you could try wrapping your CTE with an outer SELECT and explicitly listing the columns:
SELECT
COLUMN_1,
COLUMN_2,
COLUMN_3,
...,
COLUMN_N
FROM (
WITH ... (
...
)
SELECT
...
FROM
...
WHERE
...
) T