New answers tagged parallelism
What's weird is while experimenting, we even dropped the threshold back down to the default value of 5 seconds, and it still won't run parallel. What could be preventing it? There are many reasons that the optimizer will not (or cannot) produce a parallel plan. Broadly: Obvious causes, such as the configuration setting max degree of parallelism being ...
Depending on your queries, postgresql + citus + cstore_fdw may solve your problems. Citus (with sharding) can parallelize your queries, and cstore_fdw provides columnar storage.
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