>> Do you really doubt that memcpy is faster than CRC32 checking? >> Especially when >> you're already doing memcpy anyways and the only overhead is the few >> unaligned >> bytes at the end and the 8 one-byte copies? > > I'm saying the complexity and implementation of it is going to get you > a bit more than you think. If it didn't, you'd already have the thing > coded and would be proving me wrong with the patch rather than theory. > I can code up a checksum version in an hour or less if you want to > give it a go.
LIVE FROM THE WWE, CAGE MATCH! Jonah (the Theorist) Harris versus Greg (the Brain) Stark. What is going to happen between these two brothers in arms when they must both prove their theory! Sincerely, Joshua D. Drake -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since 1997 http://www.commandprompt.com/ Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate PostgreSQL Replication: http://www.commandprompt.com/products/ ---------------------------(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