Merge mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/home/jimw/my/mysql-5.0-clean


mysys/hash.c:
  Auto merged
sql/ha_heap.h:
  Auto merged
configure.in:
  Resolve conflicts from 4.1
mysql-test/r/heap.result:
  Update results
mysql-test/t/heap.test:
  Merge from 4.1

configure.in

@@ -442,33 +442,33 @@ PS=$ac_cv_path_PS
 # Linux style
 if $PS p $$ 2> /dev/null | grep $0 > /dev/null
 then
-  FIND_PROC="$PS p \$\$PID | grep \$\$MYSQLD > /dev/null"
+  FIND_PROC="$PS p \$\$PID | grep -v grep | grep \$\$MYSQLD > /dev/null"
 # Solaris
 elif $PS -fp $$ 2> /dev/null | grep $0 > /dev/null
 then
-  FIND_PROC="$PS -p \$\$PID | grep \$\$MYSQLD > /dev/null"
+  FIND_PROC="$PS -p \$\$PID | grep -v grep | grep \$\$MYSQLD > /dev/null"
 # BSD style
 elif $PS -uaxww 2> /dev/null | grep $0 > /dev/null
 then
-  FIND_PROC="$PS -uaxww | grep \$\$MYSQLD | grep \" \$\$PID \" > /dev/null"
+  FIND_PROC="$PS -uaxww | grep -v grep | grep \$\$MYSQLD | grep \" \$\$PID \" > /dev/null"
 # SysV style
 elif $PS -ef 2> /dev/null | grep $0 > /dev/null
 then
-  FIND_PROC="$PS -ef | grep \$\$MYSQLD | grep \" \$\$PID \" > /dev/null"
+  FIND_PROC="$PS -ef | grep -v grep | grep \$\$MYSQLD | grep \" \$\$PID \" > /dev/null"
 # Do anybody use this?
 elif $PS $$ 2> /dev/null | grep $0 > /dev/null
 then
-  FIND_PROC="$PS \$\$PID | grep \$\$MYSQLD > /dev/null"
+  FIND_PROC="$PS \$\$PID | grep -v grep | grep \$\$MYSQLD > /dev/null"
 else
   case $SYSTEM_TYPE in
     *freebsd*)
-      FIND_PROC="$PS p \$\$PID | grep \$\$MYSQLD > /dev/null"
+      FIND_PROC="$PS p \$\$PID | grep -v grep | grep \$\$MYSQLD > /dev/null"
       ;;
     *darwin*)
-      FIND_PROC="$PS -uaxww | grep \$\$MYSQLD | grep \" \$\$PID \" > /dev/null"
+      FIND_PROC="$PS -uaxww | grep -v grep | grep \$\$MYSQLD | grep \" \$\$PID \" > /dev/null"
       ;;
     *cygwin*)
-      FIND_PROC="$PS -e | grep \$\$MYSQLD | grep \" \$\$PID \" > /dev/null"
+      FIND_PROC="$PS -e | grep -v grep | grep \$\$MYSQLD | grep \" \$\$PID \" > /dev/null"
       ;;
     *netware*)
       FIND_PROC=

mysql-test/r/heap.result

@@ -696,3 +696,8 @@ drop table t1;
 create table t1 (a int not null, b int not null auto_increment,
 primary key(a, b)) engine=heap;
 ERROR 42000: Incorrect table definition; there can be only one auto column and it must be defined as a key
+create table t1 (c char(255), primary key(c(90)));
+insert into t1 values ("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
+insert into t1 values ("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
+ERROR 23000: Duplicate entry 'abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijkl' for key 1
+drop table t1;

mysql-test/t/heap.test

@@ -426,3 +426,12 @@ drop table t1;
 --error 1075
 create table t1 (a int not null, b int not null auto_increment,
   primary key(a, b)) engine=heap;
+
+#
+# Bug #10566: Verify that we can create a prefixed key with length > 255
+#
+create table t1 (c char(255), primary key(c(90)));
+insert into t1 values ("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
+--error 1062
+insert into t1 values ("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz");
+drop table t1;

mysys/hash.c

@@ -262,7 +262,25 @@ static void movelink(HASH_LINK *array,uint find,uint next_link,uint newlink)
   return;
 }
 
-	/* Compare a key in a record to a whole key. Return 0 if identical */
+/*
+  Compare a key in a record to a whole key. Return 0 if identical
+
+  SYNOPSIS
+    hashcmp()
+    hash   hash table
+    pos    position of hash record to use in comparison
+    key    key for comparison
+    length length of key
+
+  NOTES:
+    If length is 0, comparison is done using the length of the
+    record being compared against.
+
+  RETURN
+    < 0  key of record <  key
+    = 0  key of record == key
+    > 0  key of record >  key
+ */
 
 static int hashcmp(HASH *hash,HASH_LINK *pos,const byte *key,uint length)
 {
@@ -270,7 +288,7 @@ static int hashcmp(HASH *hash,HASH_LINK *pos,const byte *key,uint length)
   byte *rec_key= (byte*) hash_key(hash,pos->data,&rec_keylength,1);
   return ((length && length != rec_keylength) ||
 	  my_strnncoll(hash->charset, (uchar*) rec_key, rec_keylength,
-		       (uchar*) key, length));
+		       (uchar*) key, rec_keylength));
 }
 
 

sql/ha_heap.h

@@ -57,6 +57,7 @@ public:
   }
   const key_map *keys_to_use_for_scanning() { return &btree_keys; }
   uint max_supported_keys()          const { return MAX_KEY; }
+  uint max_supported_key_part_length() const { return MAX_KEY_LENGTH; }
   double scan_time() { return (double) (records+deleted) / 20.0+10; }
   double read_time(uint index, uint ranges, ha_rows rows)
   { return (double) rows /  20.0+1; }