sql - Select all tuples of a Table, with a dummy column showing which tuples satisfy a condition -


if add condition in query gives me filtered results. need result in rows (filtered + unfiltered) shown additional (dummy) column tells me means(say boolean value) specific row met "where condition" .

taking example where condition: 

where col1 = 2

use case add additional column indicating if condition met:

select *, case when col1 = 2                 'true'                else 'false'           end `dummy` your_table

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