Add the total number of subqueries to query statistics #5397
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Signed-off-by: Cyril Tovena <[email protected]>
Signed-off-by: Cyril Tovena <[email protected]>
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What this PR does / why we need it:
This PR adds a new statistics
subquerieswhich contains the total amount of subqueries created to fulfil a given queries. This can be useful when debugging or when we want to know into how many subqueries a given queries has been splitted into.Which issue(s) this PR fixes:
Fixes #
Special notes for your reviewer:
I basically used the merge function to increase the statistics, since merging is always done when doing subqueries.
Checklist
CHANGELOG.mdabout the changes.