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Do not allocate task memory for VALUES/metadata-only queries #19027

Merged
merged 2 commits into from
Sep 14, 2023
Merged

Do not allocate task memory for VALUES/metadata-only queries #19027

merged 2 commits into from
Sep 14, 2023

Commits on Sep 13, 2023

  1. Set lower bound of remaining memory trackers to 0

    @losipiuk
    losipiuk committed Sep 13, 2023
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Commits on Sep 14, 2023

  1. Do not allocate task memory for VALUES/metadata-only queries 

    If query does not scan any tables or only accesses information_schema do
assume its tasks do not requrie any memory when allocating node for task
execution.

That way metadata only queries can execute even if cluster is fully
pre allocated.
    @losipiuk
    losipiuk committed Sep 14, 2023
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