4 Commits (582fbffb0ccc79de76a459df670b86d109d37ca5)

Author	SHA1	Message	Date
Tom Lane	542320c2bd	Be more careful about printing constants in ruleutils.c. ... The previous coding in get_const_expr() tried to avoid quoting integer, float, and numeric literals if at all possible. While that looks nice, it means that dumped expressions might re-parse to something that's semantically equivalent but not the exact same parsetree; for example a FLOAT8 constant would re-parse as a NUMERIC constant with a cast to FLOAT8. Though the result would be the same after constant-folding, this is problematic in certain contexts. In particular, Jeff Davis pointed out that this could cause unexpected failures in ALTER INHERIT operations because of child tables having not-exactly-equivalent CHECK expressions. Therefore, favor correctness over legibility and dump such constants in quotes except in the limited cases where they'll be interpreted as the same type even without any casting. This results in assorted small changes in the regression test outputs, and will affect display of user-defined views and rules similarly. The odds of that causing problems in the field seem non-negligible; given the lack of previous complaints, it seems best not to change this in the back branches.	11 years ago
Heikki Linnakangas	e09b48316c	Add index-only scan support to btree_gist. ... inet, cidr, and timetz indexes still cannot support index-only scans, because they don't store the original unmodified value in the index, but a derived approximate value.	11 years ago
Tom Lane	8436489c81	Add KNNGIST support to contrib/btree_gist. ... This extends GiST's support for nearest-neighbor searches to many of the standard data types. Teodor Sigaev	15 years ago
Teodor Sigaev	42d069886f	New version. Add support for int2, int8, float4, float8, timestamp with/without time zone, time with/without time zone, date, interval, oid, money and macaddr, char, varchar/text, bytea, numeric, bit, varbit, inet/cidr types for GiST	22 years ago