Re: fast way to run a query with 7 thousand constant values

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Am 01.03.25 um 19:23 schrieb Sbob:
I have a client that wants to pass in as an IN clause a list of
7,000 values. The value set changes for each query and it ranges
from 5,000 to 8,000 values.

The planning time is too long for the requirements. (250 - 300ms)

I got it to work in 50ms end to end by creating a temp table and
doing a copy from STDIN into the temp table

However this is a Java based app and getting it to do a copy is
becoming way more complex than it should be.

Anyone know of an alternate way to run a query where an id is one of
X values where X is a list of 5 - 8 thousand values that will not
force the planner to spend 200+ms prepping the plan?

Use "where the_column = any(?)" and pass all the values as a single parameter
of type java.sql.Array using a PreparedStatement.








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