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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-08-17 19:58:06 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-08-17 19:58:06 +0000 |
| commit | ec646dbc65afc8c55118cb3fb75cb6fd18d78dd8 (patch) | |
| tree | bd256cf157c4636382d59938162326fccc70b62c /src/include/parser/parse_oper.h | |
| parent | d89578ccbefb83aa9f9d1c00269cd866be2cc857 (diff) | |
| download | postgresql-ec646dbc65afc8c55118cb3fb75cb6fd18d78dd8.tar.gz postgresql-ec646dbc65afc8c55118cb3fb75cb6fd18d78dd8.zip | |
Create a 'type cache' that keeps track of the data needed for any particular
datatype by array_eq and array_cmp; use this to solve problems with memory
leaks in array indexing support. The parser's equality_oper and ordering_oper
routines also use the cache. Change the operator search algorithms to look
for appropriate btree or hash index opclasses, instead of assuming operators
named '<' or '=' have the right semantics. (ORDER BY ASC/DESC now also look
at opclasses, instead of assuming '<' and '>' are the right things.) Add
several more index opclasses so that there is no regression in functionality
for base datatypes. initdb forced due to catalog additions.
Diffstat (limited to 'src/include/parser/parse_oper.h')
| -rw-r--r-- | src/include/parser/parse_oper.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/include/parser/parse_oper.h b/src/include/parser/parse_oper.h index 1167997706a..130f125eff1 100644 --- a/src/include/parser/parse_oper.h +++ b/src/include/parser/parse_oper.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: parse_oper.h,v 1.32 2003/08/04 02:40:14 momjian Exp $ + * $Id: parse_oper.h,v 1.33 2003/08/17 19:58:06 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -38,15 +38,16 @@ extern Operator compatible_oper(List *op, Oid arg1, Oid arg2, bool noError); /* currently no need for compatible_left_oper/compatible_right_oper */ -/* Routines for identifying "=" and "<" operators for a type */ +/* Routines for identifying "=", "<", ">" operators for a type */ extern Operator equality_oper(Oid argtype, bool noError); extern Operator ordering_oper(Oid argtype, bool noError); +extern Operator reverse_ordering_oper(Oid argtype, bool noError); /* Convenience routines for common calls on the above */ extern Oid compatible_oper_opid(List *op, Oid arg1, Oid arg2, bool noError); extern Oid equality_oper_funcid(Oid argtype); extern Oid ordering_oper_opid(Oid argtype); -extern Oid ordering_oper_funcid(Oid argtype); +extern Oid reverse_ordering_oper_opid(Oid argtype); /* Extract operator OID or underlying-function OID from an Operator tuple */ extern Oid oprid(Operator op); |