Today I Learned

A Hashrocket project

Are All Values True in Postgres

If you have values like this:

chriserin=# select * from (values (true), (false), (true)) x(x);
 x
---
 t
 f
 t

You might want to see if all of them are true. You can do that with bool_and:

chriserin=# select bool_and(x.x) from (values (true), (false), (true)) x(x);
bool_and 
---
 f

And when they are all true:

chriserin=# select bool_and(x.x) from (values (true), (true), (true)) x(x);
bool_and 
---
 t
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