Simple select with casting rounded numeric as varchar crushes the server
------------------------------------------------------------------------
Key: CORE-4093
URL: http://tracker.firebirdsql.org/browse/CORE-4093
Project: Firebird Core
Issue Type: Bug
Affects Versions: 2.5.3
Environment: Windows 7, I suppose any other also
Reporter: Petr Gurin
Priority: Minor
{{{
select cast(round(123.45, -40) as varchar (41)) from rdb$database
}}}
works fine
{{{
select cast(round(123.45, -40) as varchar (40)) from rdb$database
}}}
does conversion error from string "00000000000000000000000000000000000000000",
but
{{{
select cast(round(123.45, -41) as varchar (41)) from rdb$database
}}}
crushes the sever.
This select is really stupid and the problem was found occasionally while I was
testing the boundary behaviour of converting stored procedure; but the similar
request gives the possibility for the user to crash server practicaly without
any permissions.
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