How to detect time-overlapping-records in Postgres + Rails
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```ruby Model .where("TSRANGE(?, ?, '()') && TSRANGE(starts_at, ends_at, '()')", starts_at, ends_at) .where.not(id: record_id) .exists? ``` Bot...

How to restore DB from SQLC file
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`pg_restore -d db_name /path/to/sqlc/file.sqlc`

How to run PostgreSQL if 'postmaster.pid' already exists
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How to run PostgreSQL if it isn't starting because 'postmaster.pid' already exists