![postgresql - Postgres - copy table INCLUDING CONSTRAINT doesn't include constraint - Database Administrators Stack Exchange postgresql - Postgres - copy table INCLUDING CONSTRAINT doesn't include constraint - Database Administrators Stack Exchange](https://i.stack.imgur.com/fk35f.png)
postgresql - Postgres - copy table INCLUDING CONSTRAINT doesn't include constraint - Database Administrators Stack Exchange
![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. 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.](https://pbs.twimg.com/media/FEEibLTXEAMaNrl.jpg:large)
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.
![postgresql - Postgres choosing a query plan that is more expensive by its own estimates - Stack Overflow postgresql - Postgres choosing a query plan that is more expensive by its own estimates - Stack Overflow](https://i.stack.imgur.com/VwF5R.png)