I have a table as follows:
__col_a | col_b| user_id__
_000-01 | [null] | [null]
[null] | 000-01 | uid01
000-02 | [null] | [null]
[null] | 000-02 | uid02_
All I want is to match the values of col_a and col_b and then fetch the value of respective user_ids.
But the problem is, due to having the values in different rows, I cannot match them using join or match.
Any idea, what to do???
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