> Dates and times (and timestamps) don't behave as expected
...
> For the most part, I get wrong results when using timestamps
> and other date or time types and functions.
You MUST have more details here, since your vague problem description
simply cannot be attributed to PostgreSQL itself.
For the most part, a non-specific problem description such as yours
indicates a fundamental system problem which will be glaringly obvious
to even the casual observer or, less likely, a difference in
understanding how date and time should behave.
More info with examples please!!
- Thomas