Description:
Enabling the 'log_duration' setting causes the duration of each completed statement to be logged. This does not logs the text of the query and thus behaves different from the 'log_min_duration_statement' flag. This parameter cannot be changed after session start.
Rationale:
Monitoring the time taken to execute the queries can be crucial in identifying any resource hogging queries and assessing the performance of the server. Further steps such as load balancing and use of optimized queries can be taken to ensure the performance and stability of the server. This recommendation is applicable to PostgreSQL database instances.
Using Console:
Using Command Line:
gcloud sql instances list
gcloud sql instances patch INSTANCE_NAME --database-flags log_duration=on
Note: This command will overwrite all database flags previously set. To keep those and add new ones, include the values for all flags you want set on the instance; any flag not specifically included is set to its default value. For flags that do not take a value, specify the flag name followed by an equals sign ("=").
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