Postgres text search: balancing query time and relevancy
postgresql - Postgres choosing a query plan that is more expensive by its own estimates - Stack Overflow
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Postgres CASE Expression
Postgres CREATE INDEX: Operator classes, index types & more
postgresql - Postgres - Cascade delete not working - Stack Overflow
Tobias_Petry.sql on Twitter: "⚡️ Database Tip Comparing anything to a null value is always null too (meaning false). Simple operations like searching for rows with an unequal value will be more complicated.