Vahe Evoyan writes:
> Merge Join (cost=0.00..2513.96 rows=1 width=72) (actual
> time=127.361..473.687 rows=66460 loops=1)
>Merge Cond: ((v1.dft_id = v2.dft_id) AND ((v1.key)::text =
> (v2.key)::text))
>-> Index Scan using qor_value_self_join on qor_value v1
> (cost=0.00..1255.60 rows=27
Hello,
The Query Plan for the query below shows a large number in its actual rows
count by an unknown reason. As a result Merge Join works on a large enough
data to slow down the query.
The table which I query has the following description:
