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The get_observations function will time out on large datasets #1

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Robsteranium opened this issue Aug 19, 2021 · 0 comments
Open

The get_observations function will time out on large datasets #1

Robsteranium opened this issue Aug 19, 2021 · 0 comments

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@Robsteranium
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In other scenarios we've found it necessary to split this query into two pieces:

  • first query for all observation URIs and spill the results to disk
  • then page through the URIs and insert then into a second query using a VALUES clause

This should scale better than e.g. LIMIT/OFFSET (which still requires the database to assemble the offset solutions).
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@Robsteranium