parent:
c8ff36db6134bfd333ef2333a9eeea66698dcd5b
nmyk <nick.mykins@gmail.com>
2020-10-22T17:59:44-04:00
adds alternative way to create a columnless table updates comment on SELECT COUNT(*) to point out additional weirdness
diff --git a/weird.sql b/weird.sql index b11738c2223b3eee129012086dd76337d14d1503..a2b3a60cb9ad9b3e573f9aead7e3f246a668a4bf 100644 --- a/weird.sql +++ b/weird.sql @@ -4,6 +4,9 @@ -- columnless table CREATE TABLE X(); +-- a weirder way to create a columnless table +SELECT INTO Y; + -- weird name ALTER TABLE X RENAME TO """"; @@ -20,7 +23,7 @@ -- "successful insert" into table with FALSE check ALTER TABLE """" ADD CONSTRAINT X CHECK (FALSE); INSERT INTO """" SELECT * FROM """"; --- returns 1 +-- returns 1, uses "*" with no table specified SELECT COUNT(*); -- what transaction?