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Enable analyze for p_ci_builds_metadata

Tianwen Chen requested to merge 423135-ci_builds_metadata into master

What does this MR do and why?

See #423959 (comment 1588358939)

This is related to #423135 (closed). We have built the feature to run regular analyze on partitioned tables so that Postgresql can use the table information to execute a better query plan. And now we want to register Ci::BuildMetadata and schedule to run the analyze weekly.

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Before After

How to set up and validate locally

  1. Open up Rails console and development logs:

    tail -f log/development.log
rails c

  2. Enable feature flag

    Feature.enable(:database_analyze_on_partitioned_tables)

  3. Run sync_partitions

    ::Gitlab::Database::Partitioning.sync_partitions

  4. Check if you can see the following output from Rails console or development logs

    ANALYZE VERBOSE "p_ci_builds_metadata"

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

Related to #423135 (closed)

Edited by Tianwen Chen

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