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FIX: base import script was not updating first_post_created_at column

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FEATURE: new rake task to update first_post_created_at column

The not-equal operator (`<>`) in PostgreSQL does not compare values
with NULL. We should instead use `IS DISTINCT FROM` when comparing
values with NULL.
This commit is contained in:
Arpit Jalan
2020-06-04 11:26:40 +05:30
parent 2188ccccd5
commit a93d24501c
2 changed files with 21 additions and 2 deletions
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4
script/import_scripts/base.rb
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@ -684,7 +684,7 @@ class ImportScripts::Base
FROM users u1
JOIN lpa ON lpa.user_id = u1.id
WHERE u1.id = users.id
AND users.last_posted_at <> lpa.last_posted_at
AND users.last_posted_at IS DISTINCT FROM lpa.last_posted_at
SQL
end
@ -702,7 +702,7 @@ class ImportScripts::Base
FROM user_stats u1
JOIN sub ON sub.user_id = u1.user_id
WHERE u1.user_id = user_stats.user_id
AND user_stats.first_post_created_at <> sub.first_post_created_at
AND user_stats.first_post_created_at IS DISTINCT FROM sub.first_post_created_at
SQL
puts "", "Updating user post_count..."