Bug#17374: select ... like 'A%' operator fails to find value on columuns with key

Fixed that LIKE worked case insensitively for latin2_czech_cs,
which was wrong for a case sensitive collation.


include/m_ctype.h:
  Making my_wildcmp_bin public instead of static
strings/ctype-bin.c:
  Making my_wildcmp_bin public instead of static
strings/ctype-czech.c:
  Use my_wildcmp_bin instead of case insensitive my_wildcmp_8bit
mysql-test/include/have_latin2_ch.inc:
  New BitKeeper file ``mysql-test/include/have_latin2_ch.inc''
mysql-test/r/ctype_latin2_ch.result:
  New BitKeeper file ``mysql-test/r/ctype_latin2_ch.result''
mysql-test/r/have_latin2_ch.require:
  New BitKeeper file ``mysql-test/r/have_latin2_ch.require''
mysql-test/t/ctype_latin2_ch.test:
  New BitKeeper file ``mysql-test/t/ctype_latin2_ch.test''

include/m_ctype.h

@@ -342,6 +342,11 @@ int my_wildcmp_8bit(CHARSET_INFO *,
 		    const char *wildstr,const char *wildend,
 		    int escape, int w_one, int w_many);
 
+int my_wildcmp_bin(CHARSET_INFO *,
+		   const char *str,const char *str_end,
+		   const char *wildstr,const char *wildend,
+		   int escape, int w_one, int w_many);
+
 uint my_numchars_8bit(CHARSET_INFO *, const char *b, const char *e);
 uint my_numcells_8bit(CHARSET_INFO *, const char *b, const char *e);
 uint my_charpos_8bit(CHARSET_INFO *, const char *b, const char *e, uint pos);

mysql-test/include/have_latin2_ch.inc

+-- require r/have_latin2_ch.require
+disable_query_log;
+show collation like "latin2_czech_cs";
+enable_query_log;

mysql-test/r/ctype_latin2_ch.result

+drop table if exists t1;
+set names latin2;
+select 'A' = 'a' collate latin2_czech_cs;
+'A' = 'a' collate latin2_czech_cs
+0
+create table t1 (
+id  int(5) not null,    
+tt  char(255) not null
+) character set latin2 collate latin2_czech_cs;
+insert into t1 values (1,'Aa');
+insert into t1 values (2,'Aas');
+alter table t1 add primary key aaa(tt);
+select * from t1 where tt like 'Aa%';
+id	tt
+1	Aa
+2	Aas
+select * from t1 ignore index (primary) where tt like 'Aa%';
+id	tt
+1	Aa
+2	Aas
+select * from t1 where tt like '%Aa%';
+id	tt
+1	Aa
+2	Aas
+select * from t1 where tt like 'AA%';
+id	tt
+select * from t1 ignore index (primary) where tt like 'AA%';
+id	tt
+select * from t1 where tt like '%AA%';
+id	tt

mysql-test/r/have_latin2_ch.require

+Collation	Charset	Id	Default	Compiled	Sortlen
+latin2_czech_cs	latin2	2		Yes	4

mysql-test/t/ctype_latin2_ch.test

+-- source include/have_latin2_ch.inc
+
+#
+# Tests with latin2_czech_cs
+#
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+#
+# Bug#17374: select ... like 'A%' operator fails
+# to find value on columuns with key
+#
+set names latin2;
+select 'A' = 'a' collate latin2_czech_cs;
+create table t1 (
+    id  int(5) not null,    
+    tt  char(255) not null
+) character set latin2 collate latin2_czech_cs;
+insert into t1 values (1,'Aa');
+insert into t1 values (2,'Aas');
+alter table t1 add primary key aaa(tt); 
+select * from t1 where tt like 'Aa%';
+select * from t1 ignore index (primary) where tt like 'Aa%';
+select * from t1 where tt like '%Aa%';
+select * from t1 where tt like 'AA%';
+select * from t1 ignore index (primary) where tt like 'AA%';
+select * from t1 where tt like '%AA%';
+
+# End of 4.1 tests

strings/ctype-bin.c

@@ -269,10 +269,10 @@ void my_hash_sort_bin(CHARSET_INFO *cs __attribute__((unused)),
 #define INC_PTR(cs,A,B) (A)++
 
 
-static int my_wildcmp_bin(CHARSET_INFO *cs,
-			   const char *str,const char *str_end,
-			   const char *wildstr,const char *wildend,
-			   int escape, int w_one, int w_many)
+int my_wildcmp_bin(CHARSET_INFO *cs,
+                   const char *str,const char *str_end,
+                   const char *wildstr,const char *wildend,
+                   int escape, int w_one, int w_many)
 {
   int result= -1;			/* Not found, using wildcards */
   

strings/ctype-czech.c

@@ -583,7 +583,7 @@ static MY_COLLATION_HANDLER my_collation_latin2_czech_ci_handler =
   my_strnncollsp_czech,
   my_strnxfrm_czech,
   my_like_range_czech,
-  my_wildcmp_8bit,
+  my_wildcmp_bin,
   my_strcasecmp_8bit,
   my_instr_simple,
   my_hash_sort_simple,