- `.from(t1, t2)` produces an unconditional join if you forget to add a condition in the .where()
sqlpp11 therefore now deprecates unconditional joins.
- more often than not, writing something like `where(name == "doe")`, you
meant to write `where(t.name == "doe")`. It is hard to find bugs when
the former expression compiles because you happen to have a variable
`name` in the current scope as well.
sqlpp11 therefore now deprecates `.where(bool)` and disallows
raw bool values boolean expression like `something and bool`
wrap bools in sqlpp::value(), if you REALLY want a bool value here
This is inspired by sqlite's behaviour: If you have a date column (say
colDate) and update it with
colDate = DATETIME('2015-01-01T20:20:20);
colDate will contain the date time, not just the date (while the
connector would probably just read the date part). In order to prevent
this kind of inconsistencies, date can be assigned only with dates, not
with timestamps.
