501d454af5
* MM-39351: fixes LastRootPostAt being null After upgrading to v6.1 there is a chance for LastRootPostAt to be NULL. This might be due to a faulty migration when upgrading to v5.35. v5.35 had `create_msg_root_count` where LastRootPostAt was used as a temporary column which at the end was deleted. Then on v6.1 we are adding that column again, this time to keep. If the migration to v5.35 had failed and it didn't drop the column the `upgrade_cte` (v6.1) migration would leave some channels with `LastRootPostAt` being NULL. This resulted in crashing the app. This commit fixes that by running again a migration to again set LastRootPostAt only when it's NULL this time and then set it to 0 for channels that might still have LastRootPostAt being NULL (channels with no posts). PS: the whole issue arose when upon creating the `upgrade_cte` migration the create_msg_root_count migration was manually edited to change the column name from LastRootPostAt to LastRootAt. Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
51 строка
1.0 KiB
SQL
51 строка
1.0 KiB
SQL
DO $$
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BEGIN
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IF (
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SELECT count(*)
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FROM information_schema.columns
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WHERE table_schema='public'
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AND table_name='channels'
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AND column_name='lastrootpostat'
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AND (column_default IS NULL OR column_default != '''0''::bigint')
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) = 1 THEN
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ALTER TABLE channels ALTER COLUMN lastrootpostat SET DEFAULT '0'::bigint;
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END IF;
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END$$;
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DO $$
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BEGIN
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IF (
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SELECT count(*)
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FROM Channels
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WHERE LastRootPostAt IS NULL
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) > 0 THEN
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-- fixes migrate cte and sets the LastRootPostAt for channels that don't have it set
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WITH q AS (
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SELECT
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Channels.Id channelid,
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COALESCE(MAX(Posts.CreateAt), 0) AS lastrootpost
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FROM
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Channels
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LEFT JOIN
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Posts
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ON
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Channels.Id = Posts.ChannelId
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WHERE
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Posts.RootId = ''
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GROUP BY
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Channels.Id
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)
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UPDATE
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Channels
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SET
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LastRootPostAt = q.lastrootpost
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FROM
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q
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WHERE
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q.channelid = Channels.Id AND Channels.LastRootPostAt IS NULL;
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-- sets LastRootPostAt to 0, for channels with no posts
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UPDATE Channels SET LastRootPostAt=0 WHERE LastRootPostAt IS NULL;
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END IF;
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END $$;
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