Merge MySQL 5.1.39 into MariaDB 5.1.

1 files changed, 5 insertions, 9 deletions

diff --git a/sql/my_decimal.h b/sql/my_decimal.h
index d736bad9a4b..d991dd1c54c 100644
--- a/sql/my_decimal.h
+++ b/sql/my_decimal.h
@@ -48,10 +48,12 @@ C_MODE_END
   digits * number of decimal digits in one our big digit - number of decimal
   digits in one our big digit decreased by 1 (because we always put decimal
   point on the border of our big digits))
+
+  This value is 65 due to historical reasons partly due to it being used
+  as the maximum allowed precision and not the actual maximum precision.
 */
 #define DECIMAL_MAX_PRECISION (DECIMAL_MAX_POSSIBLE_PRECISION - 8*2)
 #define DECIMAL_MAX_SCALE 30
-#define DECIMAL_NOT_SPECIFIED 31
 
 /**
   maximum length of string representation (number of maximum decimal
@@ -75,12 +77,6 @@ inline uint my_decimal_size(uint precision, uint scale)
 }
 
 
-inline int my_decimal_int_part(uint precision, uint decimals)
-{
-  return precision - ((decimals == DECIMAL_NOT_SPECIFIED) ? 0 : decimals);
-}
-
-
 /**
   my_decimal class limits 'decimal_t' type to what we need in MySQL.
 
@@ -184,7 +180,7 @@ inline uint my_decimal_length_to_precision(uint length, uint scale,
 }
 
 inline uint32 my_decimal_precision_to_length_no_truncation(uint precision,
-                                                           uint8 scale,
+                                                           uint scale,
                                                            bool unsigned_flag)
 {
   /*
@@ -196,7 +192,7 @@ inline uint32 my_decimal_precision_to_length_no_truncation(uint precision,
                   (unsigned_flag || !precision ? 0 : 1));
 }
 
-inline uint32 my_decimal_precision_to_length(uint precision, uint8 scale,
+inline uint32 my_decimal_precision_to_length(uint precision, uint scale,
                                              bool unsigned_flag)
 {
   /*