contrib/ltree, contrib/tsearch, and contrib/tsearch2 each contain
implementations of CRC32 calculations. I think these are now pretty
redundant with the CRC32 code existing in the main backend. They
use a different CRC polynomial than the main backend code does,
but it's hard to credit that that is an important difference.
Anyone see a reason not to rip that code out and make these modules
use pg_crc.h/pg_crc.c instead?
regards, tom lane
