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Cause CHAR(n) to TEXT or VARCHAR conversion to automatically strip trailing

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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).
This commit is contained in:
Tom Lane
2003-05-26 00:11:29 +00:00
parent 297c1658ed
commit f45df8c014
36 changed files with 1012 additions and 1560 deletions
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5
contrib/array/array_iterator.h
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@ -9,11 +9,6 @@ int32 array_all_texteq(ArrayType *array, void *value);
int32 array_textregexeq(ArrayType *array, void *value);
int32 array_all_textregexeq(ArrayType *array, void *value);
int32 array_varchareq(ArrayType *array, void *value);
int32 array_all_varchareq(ArrayType *array, void *value);
int32 array_varcharregexeq(ArrayType *array, void *value);
int32 array_all_varcharregexeq(ArrayType *array, void *value);
int32 array_bpchareq(ArrayType *array, void *value);
int32 array_all_bpchareq(ArrayType *array, void *value);
int32 array_bpcharregexeq(ArrayType *array, void *value);