Scott Marlowe <smarlowe@xxxxxxxxxxxxxxxxx> writes: > On Mon, 2005-11-14 at 17:20, Kevin Grittner wrote: >> ERROR: could not read block 649847 of relation 1663/16385/16483: >> Invalid argument > When a block is unreadable, this means that the OS is experiencing a > read error from the hard drive. I'd believe that explanation if the errno were EIO (I/O error), but EINVAL isn't really a very sane error number to return for a hardware failure. It'd be useful to find out what Windows error code is actually being returned by the operating system. I seem to recall that we've noted some poorly chosen Windows->errno translations before, so maybe this is another one ... but all we can really say at the moment is "that shouldn't be happening". regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match