On 01/30/2018 10:43 PM, Jan Wieck wrote: > > > On Tue, Jan 30, 2018 at 12:35 PM, Stefan Blanke > <stefan.blanke@xxxxxxxxxxxxxx <mailto:stefan.blanke@xxxxxxxxxxxxxx>> wrote: > > Hello, > > We've tripped over an error when doing a "COPY.. TO STDOUT WITH > BINARY" query. > > "ERROR: invalid memory alloc request size 1073741824" > (exactly 1GB) > > > I have my money on a corrupted TOAST entry. Is this happening on > trustworthy hardware or beige box with no ECC or RAID? > I'll bet you it's not that. It's quite unlikely that would fail with exactly 1GB request size. It seems much more like a buffer that we keep to be power of 2. The question is which one. regards -- Tomas Vondra http://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
