Hello everyone!
During a rebuild on a forum in the stable branch, I have an error related to the solved plugin.
Here are the logs:
2025-12-20 03:48:21.715 UTC [1122] discourse@discourse ERROR: null value in column "answer_post_id" of relation "discourse_solved_solved_topics" violates not-null constraint
2025-12-20 03:48:21.715 UTC [1122] discourse@discourse DETAIL: Failing row contains (3735, 35506, null, -1, null, 2021-05-12 18:38:58.11516, 2021-05-12 18:38:58.11516).
2025-12-20 03:48:21.715 UTC [1122] discourse@discourse STATEMENT: INSERT INTO discourse_solved_solved_topics (
topic_id,
answer_post_id,
topic_timer_id,
accepter_user_id,
created_at,
updated_at
)
SELECT
tc.topic_id,
tc.answer_post_id,
tc.topic_timer_id,
tc.accepter_user_id,
tc.created_at,
tc.updated_at
FROM (
SELECT
tc.topic_id,
CAST(tc.value AS INTEGER) AS answer_post_id,
CAST(tc2.value AS INTEGER) AS topic_timer_id,
COALESCE(ua.acting_user_id, -1) AS accepter_user_id,
tc.created_at,
tc.updated_at,
ROW_NUMBER() OVER (PARTITION BY tc.topic_id ORDER BY tc.created_at ASC) AS rn_topic,
ROW_NUMBER() OVER (PARTITION BY CAST(tc.value AS INTEGER) ORDER BY tc.created_at ASC) AS rn_answer
FROM topic_custom_fields tc
LEFT JOIN topic_custom_fields tc2 ON tc2.topic_id = tc.topic_id AND tc2.name = 'solved_auto_close_topic_timer_id'
LEFT JOIN user_actions ua ON ua.target_topic_id = tc.topic_id AND ua.action_type = 15
WHERE tc.name = 'accepted_answer_post_id'
AND tc.id > 0
AND tc.id <= 0 + 10000
) tc
WHERE tc.rn_topic = 1 AND tc.rn_answer = 1
ON CONFLICT DO NOTHING
rake aborted!
StandardError: An error has occurred, all later migrations canceled: (StandardError)
ERROR: null value in column "answer_post_id" of relation "discourse_solved_solved_topics" violates not-null constraint
DETAIL: Failing row contains (3735, 35506, null, -1, null, 2021-05-12 18:38:58.11516, 2021-05-12 18:38:58.11516).
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-4.0.1/lib/patches/db/pg/alias_method.rb:109:in `exec'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-4.0.1/lib/patches/db/pg/alias_method.rb:109:in `async_exec'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/postgres/connection.rb:217:in `run'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/active_record_postgres/connection.rb:38:in `block in run'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/active_record_postgres/connection.rb:34:in `block in with_lock'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-8.0.2.1/lib/active_support/concurrency/null_lock.rb:9:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/active_record_postgres/connection.rb:34:in `with_lock'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/active_record_postgres/connection.rb:38:in `run'
/var/www/discourse/lib/mini_sql_multisite_connection.rb:109:in `run'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/postgres/connection.rb:196:in `exec'
/var/www/discourse/plugins/discourse-solved/db/migrate/20250318024953_copy_solved_topic_custom_field_to_discourse_solved_solved_topics.rb:17:in `up'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:994:in `public_send'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:994:in `exec_migration'
/var/www/discourse/lib/freedom_patches/schema_migration_details.rb:8:in `block in exec_migration'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/benchmark-0.4.1/lib/benchmark.rb:305:in `measure'
/var/www/discourse/lib/freedom_patches/schema_migration_details.rb:8:in `exec_migration'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:975:in `block (2 levels) in migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-8.0.2.1/lib/active_support/benchmark.rb:17:in `realtime'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:974:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:412:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:973:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1187:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1535:in `block in execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1588:in `ddl_transaction'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1534:in `execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1509:in `each'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1509:in `migrate_without_lock'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1454:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1606:in `with_advisory_lock'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1454:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1261:in `up'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1236:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/tasks/database_tasks.rb:270:in `migrate'
/var/www/discourse/lib/tasks/db.rake:267:in `block (2 levels) in <main>'
/var/www/discourse/lib/distributed_mutex.rb:53:in `block in synchronize'
/var/www/discourse/lib/distributed_mutex.rb:49:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:49:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:34:in `synchronize'
/var/www/discourse/lib/tasks/db.rake:242:in `block in <main>'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rake-13.3.0/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:25:in `load'
/usr/local/bin/bundle:25:in `<main>'
Caused by:
PG::NotNullViolation: ERROR: null value in column "answer_post_id" of relation "discourse_solved_solved_topics" violates not-null constraint (PG::NotNullViolation)
DETAIL: Failing row contains (3735, 35506, null, -1, null, 2021-05-12 18:38:58.11516, 2021-05-12 18:38:58.11516).
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-4.0.1/lib/patches/db/pg/alias_method.rb:109:in `exec'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-4.0.1/lib/patches/db/pg/alias_method.rb:109:in `async_exec'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/postgres/connection.rb:217:in `run'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/active_record_postgres/connection.rb:38:in `block in run'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/active_record_postgres/connection.rb:34:in `block in with_lock'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-8.0.2.1/lib/active_support/concurrency/null_lock.rb:9:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/active_record_postgres/connection.rb:34:in `with_lock'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/active_record_postgres/connection.rb:38:in `run'
/var/www/discourse/lib/mini_sql_multisite_connection.rb:109:in `run'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/mini_sql-1.6.0/lib/mini_sql/postgres/connection.rb:196:in `exec'
/var/www/discourse/plugins/discourse-solved/db/migrate/20250318024953_copy_solved_topic_custom_field_to_discourse_solved_solved_topics.rb:17:in `up'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:994:in `public_send'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:994:in `exec_migration'
/var/www/discourse/lib/freedom_patches/schema_migration_details.rb:8:in `block in exec_migration'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/benchmark-0.4.1/lib/benchmark.rb:305:in `measure'
/var/www/discourse/lib/freedom_patches/schema_migration_details.rb:8:in `exec_migration'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:975:in `block (2 levels) in migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-8.0.2.1/lib/active_support/benchmark.rb:17:in `realtime'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:974:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:412:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:973:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1187:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1535:in `block in execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1588:in `ddl_transaction'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1534:in `execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1509:in `each'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1509:in `migrate_without_lock'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1454:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1606:in `with_advisory_lock'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1454:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1261:in `up'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/migration.rb:1236:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-8.0.2.1/lib/active_record/tasks/database_tasks.rb:270:in `migrate'
/var/www/discourse/lib/tasks/db.rake:267:in `block (2 levels) in <main>'
/var/www/discourse/lib/distributed_mutex.rb:53:in `block in synchronize'
/var/www/discourse/lib/distributed_mutex.rb:49:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:49:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:34:in `synchronize'
/var/www/discourse/lib/tasks/db.rake:242:in `block in <main>'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rake-13.3.0/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:25:in `load'
/usr/local/bin/bundle:25:in `<main>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)
I, [2025-12-20T03:48:21.794538 #1] INFO -- : gem install geocoder -v 1.8.3 -i /var/www/discourse/plugins/discourse-locations/gems/3.3.8 --no-document --ignore-dependencies --no-user-install
Successfully installed geocoder-1.8.3
1 gem installed
== 20250318024953 CopySolvedTopicCustomFieldToDiscourseSolvedSolvedTopics: migrating
I, [2025-12-20T03:48:21.795736 #1] INFO -- : Terminating async processes
I, [2025-12-20T03:48:21.795838 #1] INFO -- : Sending INT to HOME=/var/lib/postgresql USER=postgres exec chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/15/bin/postmaster -D /etc/postgresql/15/main pid: 45
I, [2025-12-20T03:48:21.795934 #1] INFO -- : Sending TERM to exec chpst -u redis -U redis /usr/bin/redis-server /etc/redis/redis.conf pid: 112
112:signal-handler (1766202501) Received SIGTERM scheduling shutdown...
2025-12-20 03:48:21.796 UTC [45] LOG: received fast shutdown request
2025-12-20 03:48:21.800 UTC [45] LOG: aborting any active transactions
2025-12-20 03:48:21.808 UTC [45] LOG: background worker "logical replication launcher" (PID 59) exited with exit code 1
2025-12-20 03:48:21.809 UTC [54] LOG: shutting down
2025-12-20 03:48:21.811 UTC [54] LOG: checkpoint starting: shutdown immediate
2025-12-20 03:48:21.861 UTC [54] LOG: checkpoint complete: wrote 18 buffers (0.0%); 0 WAL file(s) added, 0 removed, 0 recycled; write=0.039 s, sync=0.006 s, total=0.052 s; sync files=10, longest=0.003 s, average=0.001 s; distance=161 kB, estimate=161 kB
112:M 20 Dec 2025 03:48:21.892 # User requested shutdown...
112:M 20 Dec 2025 03:48:21.892 * Saving the final RDB snapshot before exiting.
2025-12-20 03:48:21.918 UTC [45] LOG: database system is shut down
112:M 20 Dec 2025 03:48:22.621 * DB saved on disk
112:M 20 Dec 2025 03:48:22.621 # Redis is now ready to exit, bye bye...
FAILED
--------------------
Pups::ExecError: cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate' failed with return #<Process::Status: pid 1016 exit 1>
Location of failure: /usr/local/lib/ruby/gems/3.3.0/gems/pups-1.3.0/lib/pups/exec_command.rb:131:in `spawn'
exec failed with the params {"cd"=>"$home", "tag"=>"migrate", "hook"=>"db_migrate", "cmd"=>["su discourse -c 'bundle exec rake db:migrate'"]}
bootstrap failed with exit code 1
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.
I managed to rebuild by deleting the solved plugin in the app.yml (using the - rm -rf discourse-solved command), and the owner of the forum could probably do without this plugin but I’d still like to fix this.
I don’t think the issue comes from the plugin, it may be a bad manipulation on the forum. But when I explore the database, I have at least 20-30 \N entries in value
Here is an extract:
| id | topic_id | name | value | created at | updated at |
|---|---|---|---|---|---|
| 1579 | 35497 | accepted_answer_post_id | 301435 | 2021-05-10 20:18:57.780444 | 2021-05-10 20:18:57.780444 |
| 1583 | 35506 | accepted_answer_post_id | \N | 2021-05-12 18:38:58.11516 | 2021-05-12 18:38:58.11516 |
| 423 | 21211 | accepted_answer_post_id | 153039 | 2019-09-04 21:01:37.811417 | 2019-09-04 21:01:37.811417 |
| 424 | 21685 | accepted_answer_post_id | 156850 | 2019-09-09 04:39:28.388591 | 2019-09-09 04:39:28.388591 |
| 425 | 21711 | accepted_answer_post_id | 157323 | 2019-09-11 11:51:14.375185 | 2019-09-11 11:51:14.375185 |
| 428 | 20982 | accepted_answer_post_id | 157807 | 2019-09-14 08:53:16.079032 | 2019-09-14 08:53:16.079032 |
| 429 | 4949 | accepted_answer_post_id | 157515 | 2019-09-16 07:57:00.862694 | 2019-09-16 07:57:00.862694 |
| 430 | 15439 | accepted_answer_post_id | 158645 | 2019-09-19 00:56:20.112603 | 2019-09-19 00:56:20.112603 |
| 1603 | 35710 | accepted_answer_post_id | \N | 2021-05-19 20:58:06.598697 | 2021-05-19 20:58:06.598697 |
| 701 | 25377 | accepted_answer_post_id | 195459 | 2020-03-26 20:42:14.168898 | 2020-03-26 20:42:14.168898 |
| 434 | 21868 | accepted_answer_post_id | 159024 | 2019-09-22 10:09:09.671605 | 2019-09-22 10:09:09.671605 |
I need to tell you that I suck at sql queries, especially via command lines. I don’t really trust myself to delete these lines via terminal.
But anyway, what route do you recommand for me to fix this? A query (what type of querie?) ? A script, or something can be done in the forum directly?
) a quick ‘delete and restore’ could clear them out. 