On Sat, Nov 23, 2024 at 5:30 AM Marcos Pegoraro <mar...@f10.com.br> wrote:
> Em qui., 21 de nov. de 2024 às 12:04, David G. Johnston < > david.g.johns...@gmail.com> escreveu: > > Typo in NuLl, mixed upper and lower case. > > SELECT > NULL AS "Literal Null Value", > pg_typeof(null) AS "Type of Null", > pg_typeof(NuLl::text) AS "Type of Cast null", > cast(null as text) AS "Cast null value"; > > should be > pg_typeof(null::text) AS "Type of Cast Null", > That was not a typo. I'm intentionally showing an example demonstrating that the SQL NULL is fully case-insensitive. But I suppose showing both all-upper and all-lower cases fulfills that goal sufficiently. Changed. Went with NULL so there are two of each. Made all of the column headers Title Case. Thanks! David J.
