Bug#8610: The ucs2_turkish_ci collation fails with upper('i')

  UPPER/LOWER now can return a string with different length.

mi_test1.c:
  Adding new arguments.
Many files:
  Changeing caseup/casedn to return a result with different
  length than argument.
sql_string.h:
  Removing unused method,
mysql_priv.h:
  Removing unused method


strings/ctype-big5.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-bin.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-cp932.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-czech.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-euc_kr.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-extra.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-eucjpms.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-gb2312.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-gbk.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-latin1.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-mb.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-simple.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-sjis.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-tis620.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-uca.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-ucs2.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-ujis.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-utf8.c:
  Changeing caseup/casedn to return a result with different length than argument.
strings/ctype-win1250ch.c:
  Changeing caseup/casedn to return a result with different length than argument.
sql/item_strfunc.cc:
  Changeing caseup/casedn to return a result with different length than argument.
sql/item_strfunc.h:
  Changeing caseup/casedn to return a result with different length than argument.
sql/mysql_priv.h:
  Removing unused method
sql/sql_string.h:
  Removing unused method,
client/sql_string.h:
  Changeing caseup/casedn to return a result with different length than argument.
include/m_ctype.h:
  Changeing caseup/casedn to return a result with different length than argument.
myisam/mi_test1.c:
  Adding new arguments.
mysql-test/r/ctype_uca.result:
  UPPER/LOWER now can return a string with different length.
mysql-test/t/ctype_uca.test:
  UPPER/LOWER now can return a string with different length.

1 files changed, 20 insertions, 7 deletions

diff --git a/sql/item_strfunc.h b/sql/item_strfunc.h
index 95979408ccb..6df90cebdff 100644
--- a/sql/item_strfunc.h
+++ b/sql/item_strfunc.h
@@ -133,13 +133,14 @@ public:
 
 class Item_str_conv :public Item_str_func
 {
+protected:
+  uint multiply;
+  uint (*converter)(CHARSET_INFO *cs, char *src, uint srclen,
+                                      char *dst, uint dstlen);
+  String tmp_value;
 public:
   Item_str_conv(Item *item) :Item_str_func(item) {}
-  void fix_length_and_dec()
-  {
-    collation.set(args[0]->collation);
-    max_length = args[0]->max_length;
-  }
+  String *val_str(String *);
 };
 
 
@@ -147,16 +148,28 @@ class Item_func_lcase :public Item_str_conv
 {
 public:
   Item_func_lcase(Item *item) :Item_str_conv(item) {}
-  String *val_str(String *);
   const char *func_name() const { return "lcase"; }
+  void fix_length_and_dec()
+  {
+    collation.set(args[0]->collation);
+    multiply= collation.collation->casedn_multiply;
+    converter= collation.collation->cset->casedn;
+    max_length= args[0]->max_length * multiply;
+  }
 };
 
 class Item_func_ucase :public Item_str_conv
 {
 public:
   Item_func_ucase(Item *item) :Item_str_conv(item) {}
-  String *val_str(String *);
   const char *func_name() const { return "ucase"; }
+  void fix_length_and_dec()
+  {
+    collation.set(args[0]->collation);
+    multiply= collation.collation->caseup_multiply;
+    converter= collation.collation->cset->caseup;
+    max_length= args[0]->max_length * multiply;
+  }
 };