mirror of
https://github.com/postgres/postgres.git
synced 2025-04-22 23:02:54 +03:00
80b011ef0a
formatting.c used locale-dependent case folding rules in some code paths where the result isn't supposed to be locale-dependent, for example to_char(timestamp, 'DAY'). Since the source data is always just ASCII in these cases, that usually didn't matter ... but it does matter in Turkish locales, which have unusual treatment of "i" and "I". To confuse matters even more, the misbehavior was only visible in UTF8 encoding, because in single-byte encodings we used pg_toupper/pg_tolower which don't have locale-specific behavior for ASCII characters. Fix by providing intentionally ASCII-only case-folding functions and using these where appropriate. Per bug #7913 from Adnan Dursun. Back-patch to all active branches, since it's been like this for a long time.
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* -----------------------------------------------------------------------
|
|
* formatting.h
|
|
*
|
|
* src/include/utils/formatting.h
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1999-2013, PostgreSQL Global Development Group
|
|
*
|
|
* The PostgreSQL routines for a DateTime/int/float/numeric formatting,
|
|
* inspire with Oracle TO_CHAR() / TO_DATE() / TO_NUMBER() routines.
|
|
*
|
|
* Karel Zak
|
|
*
|
|
* -----------------------------------------------------------------------
|
|
*/
|
|
|
|
#ifndef _FORMATTING_H_
|
|
#define _FORMATTING_H_
|
|
|
|
#include "fmgr.h"
|
|
|
|
|
|
extern char *str_tolower(const char *buff, size_t nbytes, Oid collid);
|
|
extern char *str_toupper(const char *buff, size_t nbytes, Oid collid);
|
|
extern char *str_initcap(const char *buff, size_t nbytes, Oid collid);
|
|
|
|
extern char *asc_tolower(const char *buff, size_t nbytes);
|
|
extern char *asc_toupper(const char *buff, size_t nbytes);
|
|
extern char *asc_initcap(const char *buff, size_t nbytes);
|
|
|
|
extern Datum timestamp_to_char(PG_FUNCTION_ARGS);
|
|
extern Datum timestamptz_to_char(PG_FUNCTION_ARGS);
|
|
extern Datum interval_to_char(PG_FUNCTION_ARGS);
|
|
extern Datum to_timestamp(PG_FUNCTION_ARGS);
|
|
extern Datum to_date(PG_FUNCTION_ARGS);
|
|
extern Datum numeric_to_number(PG_FUNCTION_ARGS);
|
|
extern Datum numeric_to_char(PG_FUNCTION_ARGS);
|
|
extern Datum int4_to_char(PG_FUNCTION_ARGS);
|
|
extern Datum int8_to_char(PG_FUNCTION_ARGS);
|
|
extern Datum float4_to_char(PG_FUNCTION_ARGS);
|
|
extern Datum float8_to_char(PG_FUNCTION_ARGS);
|
|
|
|
#endif
|