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354 lines
8.3 KiB
PL/PgSQL
354 lines
8.3 KiB
PL/PgSQL
DROP FUNCTION IF EXISTS hot_rank CASCADE;
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SET timezone = 'UTC';
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-- Allow ALTER TABLE ... SET DATA TYPE changing between timestamp and timestamptz to avoid a table rewrite when the session time zone is UTC (Noah Misch)
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-- In the UTC time zone, these two data types are binary compatible.
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ALTER TABLE community_moderator
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE community_follower
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE person_ban
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE community_person_ban
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE community_person_ban
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ALTER COLUMN expires TYPE timestamptz
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USING expires;
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ALTER TABLE person
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE person
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE person
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ALTER COLUMN last_refreshed_at TYPE timestamptz
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USING last_refreshed_at;
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ALTER TABLE person
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ALTER COLUMN ban_expires TYPE timestamptz
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USING ban_expires;
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ALTER TABLE post_like
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE post_saved
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE post_read
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE comment_like
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE comment_saved
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE comment
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE comment
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE mod_remove_post
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE mod_lock_post
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE mod_remove_comment
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE mod_remove_community
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ALTER COLUMN expires TYPE timestamptz
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USING expires;
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ALTER TABLE mod_remove_community
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE mod_ban_from_community
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ALTER COLUMN expires TYPE timestamptz
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USING expires;
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ALTER TABLE mod_ban_from_community
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE mod_ban
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ALTER COLUMN expires TYPE timestamptz
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USING expires;
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ALTER TABLE mod_ban
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE mod_add_community
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE mod_add
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE person_mention
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE mod_feature_post
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE password_reset_request
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE private_message
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE private_message
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE sent_activity
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE received_activity
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE community
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE community
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE community
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ALTER COLUMN last_refreshed_at TYPE timestamptz
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USING last_refreshed_at;
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ALTER TABLE post
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE post
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE comment_report
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE comment_report
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE post_report
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE post_report
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE post_aggregates
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE post_aggregates
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ALTER COLUMN newest_comment_time_necro TYPE timestamptz
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USING newest_comment_time_necro;
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ALTER TABLE post_aggregates
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ALTER COLUMN newest_comment_time TYPE timestamptz
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USING newest_comment_time;
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ALTER TABLE comment_aggregates
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE community_block
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE community_aggregates
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE mod_transfer_community
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE person_block
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE local_user
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ALTER COLUMN validator_time TYPE timestamptz
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USING validator_time;
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ALTER TABLE admin_purge_person
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE email_verification
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE admin_purge_community
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE admin_purge_post
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE admin_purge_comment
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE registration_application
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE mod_hide_community
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ALTER COLUMN when_ TYPE timestamptz
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USING when_;
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ALTER TABLE site
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE site
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE site
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ALTER COLUMN last_refreshed_at TYPE timestamptz
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USING last_refreshed_at;
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ALTER TABLE comment_reply
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE person_post_aggregates
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE private_message_report
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE private_message_report
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE local_site
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE local_site
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE federation_allowlist
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE federation_allowlist
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE federation_blocklist
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE federation_blocklist
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE local_site_rate_limit
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE local_site_rate_limit
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE person_follower
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE tagline
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE tagline
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE custom_emoji
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE custom_emoji
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE instance
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ALTER COLUMN published TYPE timestamptz
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USING published;
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ALTER TABLE instance
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ALTER COLUMN updated TYPE timestamptz
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USING updated;
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ALTER TABLE captcha_answer
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ALTER COLUMN published TYPE timestamptz
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USING published;
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-- same as before just with time zone argument
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CREATE OR REPLACE FUNCTION hot_rank (score numeric, published timestamp with time zone)
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RETURNS integer
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AS $$
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DECLARE
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hours_diff numeric := EXTRACT(EPOCH FROM (now() - published)) / 3600;
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BEGIN
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IF (hours_diff > 0) THEN
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RETURN floor(10000 * log(greatest (1, score + 3)) / power((hours_diff + 2), 1.8))::integer;
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ELSE
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-- if the post is from the future, set hot score to 0. otherwise you can game the post to
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-- always be on top even with only 1 vote by setting it to the future
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RETURN 0;
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END IF;
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END;
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$$
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LANGUAGE plpgsql
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IMMUTABLE PARALLEL SAFE;
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