From b38f6f0afda8ccbf8bf52d33b2d743628e7c70e7 Mon Sep 17 00:00:00 2001 From: unknown Date: Mon, 30 Oct 2006 14:40:15 +0400 Subject: Bug#20404: SHOW CREATE TABLE fails with Turkish I Problem: SHOW CREATE TABLE printed garbage in table name for tables having TURKISH I (i.e. LATIN CAPITABLE LETTER I WITH DOT ABOVE) when lower-case-table-name=1. Reason: In some cases during lower/upper conversion in utf8, the result string can be shorter the original string (including the above letter). Old implementation of caseup_str() and casedn_str() didn't handle the result length properly, assuming that length cannot change. This fix changes the result type of cs->cset->casedn_str() and cs->cset->caseup_str() from VOID to UINT, to return the result length, as well as put '\0' terminator on a proper place. Also, my_caseup_str_utf8() and my_casedn_str_utf8() were rewritten not to use strlen() for performance purposes. It was done with help of adding of new functions - my_utf8_uni_no_range() and my_uni_utf8_no_range() - for null terminated strings. include/m_ctype.h: Changeing return type from void to int for caseup_str() and casedn_str() mysql-test/r/lowercase_table.result: Adding test case mysql-test/t/lowercase_table.test: Adding test case sql/sql_parse.cc: Set table->table.length to result of my_casedn_str(). strings/ctype-bin.c: Changeing return type from void to int for caseup_str() and casedn_str() strings/ctype-mb.c: Changeing return type from void to int for caseup_str() and casedn_str() strings/ctype-simple.c: Changeing return type from void to int for caseup_str() and casedn_str() strings/ctype-ucs2.c: Changeing return type from void to int for caseup_str() and casedn_str() strings/ctype-utf8.c: Changeing return type from void to int for caseup_str() and casedn_str(). Optimization, to get rid of strlen(): Adding my_utf8_uni_no_range() and my_uni_utf8_no_range() - for null terninated strings. --- strings/ctype-ucs2.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'strings/ctype-ucs2.c') diff --git a/strings/ctype-ucs2.c b/strings/ctype-ucs2.c index 4a60220f73e..3c69a314b45 100644 --- a/strings/ctype-ucs2.c +++ b/strings/ctype-ucs2.c @@ -159,13 +159,13 @@ static void my_hash_sort_ucs2(CHARSET_INFO *cs, const uchar *s, uint slen, } -static void my_caseup_str_ucs2(CHARSET_INFO * cs __attribute__((unused)), +static uint my_caseup_str_ucs2(CHARSET_INFO * cs __attribute__((unused)), char * s __attribute__((unused))) { + return 0; } - static uint my_casedn_ucs2(CHARSET_INFO *cs, char *src, uint srclen, char *dst __attribute__((unused)), uint dstlen __attribute__((unused))) @@ -188,9 +188,11 @@ static uint my_casedn_ucs2(CHARSET_INFO *cs, char *src, uint srclen, return srclen; } -static void my_casedn_str_ucs2(CHARSET_INFO *cs __attribute__((unused)), + +static uint my_casedn_str_ucs2(CHARSET_INFO *cs __attribute__((unused)), char * s __attribute__((unused))) { + return 0; } -- cgit v1.2.1