Re: [HACKERS] Re: INET operators and NOT
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <pgman@candle.pha.pa.us>
Cc: Tomas Cerha <t.cerha@sh.cvut.cz>, pgsql-bugs@postgreSQL.org, pgsql-hackers@postgreSQL.org
Date: 2000-06-01T22:42:28Z
Lists: pgsql-bugs, pgsql-hackers
Bruce Momjian <pgman@candle.pha.pa.us> writes: >> What's going on here is that the optimizer is simplifying "NOT x<<y" >> (network_sub) into "x>>=y" (network_supeq), because the pg_operator >> entry for << claims that >>= is its negator. This example demonstrates >> that that ain't so. >> >> Can anyone comment on whether any of the inet operators are actually the >> correct negator of << ? For that matter, are inet's other commutator >> and negator declarations just as broken? I did take out the demonstrably incorrect negator links for 7.0. We still have those other issues about CIDR/INET types though... regards, tom lane