30
Accepted answer
Start with the execution plan, numbers beat guesses.
Migrated stacks last quarter and this regression appeared. Stack trace and plan attached:
Context: Dynamic task mapping vs many parallel operators
Happy to share schema snippets or metrics if useful.
Accepted answer
Start with the execution plan, numbers beat guesses.
Sometimes the real fix is a product change so you stop needing that join at all.
Sign in to reply.