query explainer #7340
Labels
area/queries
difficulty/high
This issue needs to be broken down into smaller units of work.
kind/feature-request
Feature Request
Proposal:
A new query clause,
EXPLAIN
. When included, the query is not actually run, but the index is checked and TSM files are scanned to determine:Current behavior:
There is no way to estimate before running a query how many resources it needs, other than reference to past experience with the same data set.
Desired behavior:
Use case: [Why is this important (helps with prioritizing requests)]
Users can have some idea whether a query will succeed before running it and potentially OOM-ing the system.
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