Determines whether or not to collect specific timing statistics and display them in the query plan.
Option can be set at the database (PUBLIC) or user level. When set at the database level, the value becomes the default for any new user, but has no impact on existing users. When set at the user level, overrides the PUBLIC value for that user only. No system privilege is required to set option for self. System privilege is required to set at database level or at user level for any user other than self.
Requires the SET ANY PUBLIC OPTION system privilege to set this option. Can be set temporary for an individual connection or for the PUBLIC role. Takes effect immediately.
This option controls the collection of timing statistics on subqueries and some other repetitive functions in the query engine.
Query timing is represented in the query plan detail as a series of timestamps. These timestamps correspond to query operator phases (Conditions, Prepare, Fetch, Complete). HTML and Interactive SQL query plans display query timing graphically as a timeline.