Oh, one more thing:
> Second, you can reduce the total number of queries by batching
> multiple objectIds into the same query -- "SELECT ra, decl FROM
> secondaryIndex WHERE objectId IN (..., ..., ...)" or its equivalent if
> you're using a non-SQL index.
Even if we're using a SQL index, we can have a non-SQL service that
optimizes large-batch queries, either through a copy or using
more-optimal SQL.
--
Kian-Tat Lim, LSST Data Management, [log in to unmask]
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