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Wednesday, November 1, 2017

Rolling back SELECT query taking hours, using high CPU and very low disk. Cannot diagnose cause.

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Rolling back SELECT query taking hours, using high CPU and very low disk. Cannot diagnose cause.
A user has ran the below command against one of our production servers (table name and ID value substituted). This is the complete problem query.

[code language="sql"]SELECT DATA.ID
FROM (
  S

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