question about error message

<fontfamily><param>Courier</param>I got an error doing a vacuum
analyze on one of our table:


MSG: 7 (S1000): ERROR:  simple_heap_update: tuple concurrently updated


does anyone know what this means, and more importantly... should i be
worried about this?




i'm running 7.3.2 on redhat 7.3  dual 1.8 xeon with 1gb ram.

</fontfamily>
I got an error doing a vacuum analyze on one of our table:

MSG: 7 (S1000): ERROR:  simple_heap_update: tuple concurrently updated

does anyone know what this means, and more importantly... should i be
worried about this?



i'm running 7.3.2 on redhat 7.3  dual 1.8 xeon with 1gb ram.