Ensure that result from date_format() is binary

Removed warnings from test suite


mysql-test/r/ctype_utf8.result:
  Update results after fix of return argument from date_format()
mysql-test/r/date_formats.result:
  Remove unnecessary warnings
mysql-test/r/type_decimal.result:
  Remove unnecessary warnings
mysql-test/r/warnings.result:
  Remove unnecessary warnings
mysql-test/t/ctype_utf8.test:
  Fixed test
mysql-test/t/date_formats.test:
  Remove unnecessary warnings
mysql-test/t/type_decimal.test:
  Remove unnecessary warnings
mysql-test/t/warnings.test:
  Remove unnecessary warnings
sql/field.cc:
  Optimize
sql/item_timefunc.cc:
  Ensure that result from date_format() is binary
strings/ctype-simple.c:
  Better names for arguments

mysql-test/r/ctype_utf8.result

@@ -73,7 +73,7 @@ create table t1 select date_format("2004-01-19 10:10:10", "%Y-%m-%d");
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
-  `date_format("2004-01-19 10:10:10", "%Y-%m-%d")` char(10) character set utf8 default NULL
+  `date_format("2004-01-19 10:10:10", "%Y-%m-%d")` char(10) binary default NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 select * from t1;
 date_format("2004-01-19 10:10:10", "%Y-%m-%d")
@@ -87,3 +87,4 @@ Warning	1264	Data truncated for column 's1' at row 1
 select s1,hex(s1),char_length(s1),octet_length(s1) from t1;
 s1	hex(s1)	char_length(s1)	octet_length(s1)
 	D0B0	1	2
+drop table t1;

mysql-test/r/date_formats.result

 drop table if exists t1;
-Warnings:
-Note	1051	Unknown table 't1'
 SHOW GLOBAL VARIABLES LIKE "%_format%";
 Variable_name	Value
 date_format	%d.%m.%Y

mysql-test/r/warnings.result

 drop table if exists t1, t2;
-Warnings:
-Note	1051	Unknown table 't1'
-Note	1051	Unknown table 't2'
 SET SQL_WARNINGS=1;
 create table t1 (a int);
 insert into t1 values (1);

mysql-test/t/ctype_utf8.test

@@ -60,3 +60,4 @@ set names koi8r;
 create table t1 (s1 char(1) character set utf8);
 insert into t1 values (_koi8r'');
 select s1,hex(s1),char_length(s1),octet_length(s1) from t1;
+drop table t1;

mysql-test/t/date_formats.test

@@ -2,9 +2,9 @@
 # Test of date format functions
 #
 
---disable-warnings
+--disable_warnings
 drop table if exists t1;
---enable-warnings
+--enable_warnings
 
 SHOW GLOBAL VARIABLES LIKE "%_format%";
 SHOW SESSION VARIABLES LIKE "%_format%";

mysql-test/t/type_decimal.test

@@ -248,7 +248,7 @@ CREATE TABLE t1 (a_dec DECIMAL(-1,1));
 #
 #  Zero prepend overflow bug
 #
---disable-warnings
+--disable_warnings
 create table t1(a decimal(7,3));
 insert into t1 values ('1'),('+1'),('-1'),('0000000001'),('+0000000001'),('-0000000001'),('10'),('+10'),('-10'),('0000000010'),('+0000000010'),('-0000000010'),('100'),('+100'),('-100'),('0000000100'),('+0000000100'),('-0000000100'),('1000'),('+1000'),('-1000'),('0000001000'),('+0000001000'),('-0000001000'),('10000'),('+10000'),('-10000'),('0000010000'),('+0000010000'),('-0000010000'),('100000'),('+100000'),('-100000'),('0000100000'),('+0000100000'),('-0000100000'),('1000000'),('+1000000'),('-1000000'),('0001000000'),('+0001000000'),('-0001000000'),('10000000'),('+10000000'),('-10000000'),('0010000000'),('+0010000000'),('-0010000000'),('100000000'),('+100000000'),('-100000000'),('0100000000'),('+0100000000'),('-0100000000'),('1000000000'),('+1000000000'),('-1000000000'),('1000000000'),('+1000000000'),('-1000000000');
 select * from t1;
@@ -259,6 +259,6 @@ select * from t1;
 drop table t1;
 create table t1(a decimal(7,3) zerofill);
 insert into t1 values ('1'),('+1'),('-1'),('0000000001'),('+0000000001'),('-0000000001'),('10'),('+10'),('-10'),('0000000010'),('+0000000010'),('-0000000010'),('100'),('+100'),('-100'),('0000000100'),('+0000000100'),('-0000000100'),('1000'),('+1000'),('-1000'),('0000001000'),('+0000001000'),('-0000001000'),('10000'),('+10000'),('-10000'),('0000010000'),('+0000010000'),('-0000010000'),('100000'),('+100000'),('-100000'),('0000100000'),('+0000100000'),('-0000100000'),('1000000'),('+1000000'),('-1000000'),('0001000000'),('+0001000000'),('-0001000000'),('10000000'),('+10000000'),('-10000000'),('0010000000'),('+0010000000'),('-0010000000'),('100000000'),('+100000000'),('-100000000'),('0100000000'),('+0100000000'),('-0100000000'),('1000000000'),('+1000000000'),('-1000000000'),('1000000000'),('+1000000000'),('-1000000000');
---enable-warnings
+--enable_warnings
 select * from t1;
 drop table t1;

mysql-test/t/warnings.test

 #
 # Test some warnings
 #
---disable-warnings
+--disable_warnings
 drop table if exists t1, t2;
---enable-warnings
+--enable_warnings
 SET SQL_WARNINGS=1;
 
 create table t1 (a int);

sql/field.cc

@@ -4072,7 +4072,7 @@ int Field_string::store(const char *from,uint length,CHARSET_INFO *cs)
   }
 
   /* 
-    Make sure we don't break a multybite sequence
+    Make sure we don't break a multibyte sequence
     as well as don't copy a malformed data.
   */
   copy_length= field_charset->cset->wellformedlen(field_charset,
@@ -4084,8 +4084,7 @@ int Field_string::store(const char *from,uint length,CHARSET_INFO *cs)
     field_charset->cset->fill(field_charset,ptr+copy_length,
 			      field_length-copy_length,' ');
   
-  
-  if (current_thd->count_cuted_fields && (copy_length < length))
+  if ((copy_length < length) && current_thd->count_cuted_fields)
   {					// Check if we loosed some info
     const char *end=from+length;
     from+= copy_length;

sql/item_timefunc.cc

@@ -1283,16 +1283,21 @@ longlong Item_func_sec_to_time::val_int()
 void Item_func_date_format::fix_length_and_dec()
 {
   decimals=0;
+  collation.set(&my_charset_bin);
   if (args[1]->type() == STRING_ITEM)
   {						// Optimize the normal case
     fixed_length=1;
-    max_length= format_length(((Item_string*) args[1])->const_string())*
-		collation.collation->mbmaxlen;
+    /*
+      The result is a binary string (no reason to use collation->mbmaxlen
+      This is becasue make_date_time() only returns binary strings
+    */
+    max_length= format_length(((Item_string*) args[1])->const_string());
   }
   else
   {
     fixed_length=0;
-    max_length=args[1]->max_length*10*collation.collation->mbmaxlen;
+    /* The result is a binary string (no reason to use collation->mbmaxlen */
+    max_length=args[1]->max_length*10;
     set_if_smaller(max_length,MAX_BLOB_WIDTH);
   }
   maybe_null=1;					// If wrong date

strings/ctype-simple.c

@@ -1021,11 +1021,11 @@ uint my_charpos_8bit(CHARSET_INFO *cs __attribute__((unused)),
 }
 
 uint my_wellformedlen_8bit(CHARSET_INFO *cs __attribute__((unused)),
-			const char *b,
-			const char *e,
+			const char *start,
+			const char *end,
 			uint nchars)
 {
-  uint nbytes= e-b;
+  uint nbytes= (uint) (end-start);
   return nbytes < nchars ? nbytes : nchars;
 }