postgresql/src/backend/optimizer/path
Tom Lane f45df8c014 Cause CHAR(n) to TEXT or VARCHAR conversion to automatically strip trailing
blanks, in hopes of reducing the surprise factor for newbies.  Remove
redundant operators for VARCHAR (it depends wholly on TEXT operations now).
Clean up resolution of ambiguous operators/functions to avoid surprising
choices for domains: domains are treated as equivalent to their base types
and binary-coercibility is no longer considered a preference item when
choosing among multiple operators/functions.  IsBinaryCoercible now correctly
reflects the notion that you need *only* relabel the type to get from type
A to type B: that is, a domain is binary-coercible to its base type, but
not vice versa.  Various marginal cleanup, including merging the essentially
duplicate resolution code in parse_func.c and parse_oper.c.  Improve opr_sanity
regression test to understand about binary compatibility (using pg_cast),
and fix a couple of small errors in the catalogs revealed thereby.
Restructure "special operator" handling to fetch operators via index opclasses
rather than hardwiring assumptions about names (cleans up the pattern_ops
stuff a little).
2003-05-26 00:11:29 +00:00
..
allpaths.c Adjust subquery qual pushdown rules so that we can push down a qual 2003-04-24 23:43:09 +00:00
clausesel.c Determine the set of constraints applied to a domain at executor 2003-02-03 21:15:45 +00:00
costsize.c COALESCE() and NULLIF() are now first-class expressions, not macros 2003-02-16 02:30:39 +00:00
indxpath.c Cause CHAR(n) to TEXT or VARCHAR conversion to automatically strip trailing 2003-05-26 00:11:29 +00:00
joinpath.c Replace planner's representation of relation sets, per pghackers discussion. 2003-02-08 20:20:55 +00:00
joinrels.c Replace planner's representation of relation sets, per pghackers discussion. 2003-02-08 20:20:55 +00:00
Makefile Fix relative path references so that make knowns which dependencies refer 2000-08-31 16:12:35 +00:00
orindxpath.c Phase 2 of read-only-plans project: restructure expression-tree nodes 2002-12-12 15:49:42 +00:00
pathkeys.c Repair sloppiness about where cached mergeclause pathkeys are allocated. 2003-05-02 19:48:53 +00:00
tidpath.c Replace planner's representation of relation sets, per pghackers discussion. 2003-02-08 20:20:55 +00:00