Merge bk-internal.mysql.com:/home/bk/mysql-4.0

into narttu.mysql.fi:/my/mysql-4.0

client/mysql.cc

@@ -40,7 +40,7 @@
 #include <signal.h>
 #include <violite.h>
 
-const char *VER= "12.21";
+const char *VER= "12.22";
 
 /* Don't try to make a nice table if the data is too big */
 #define MAX_COLUMN_LENGTH	     1024
@@ -801,7 +801,9 @@ static int read_lines(bool execute_commands)
       char *prompt= (char*) (glob_buffer.is_empty() ? construct_prompt() :
 			     !in_string ? "    -> " :
 			     in_string == '\'' ?
-			     "    '> " : "    \"> ");
+			     "    '> " : (in_string == '`' ?
+			     "    `> " :
+			     "    \"> "));
       if (opt_outfile && glob_buffer.is_empty())
 	fflush(OUTFILE);
 

client/mysqlbinlog.cc

@@ -21,6 +21,7 @@
 #include <assert.h>
 #include "log_event.h"
 #include "include/my_sys.h"
+#include "unistd.h"
 
 #define BIN_LOG_HEADER_SIZE	4
 #define PROBE_HEADER_LEN	(EVENT_LEN_OFFSET+4)
@@ -81,9 +82,9 @@ class Load_log_processor
 	bname--;
 
       uint blen= ce->fname_len - (bname-ce->fname);
-      uint full_len= target_dir_name_len + blen;
+      uint full_len= target_dir_name_len + blen + 9 + 9 + 1;
       char *tmp;
-      if (!(tmp= my_malloc(full_len + 9 + 1,MYF(MY_WME))) ||
+      if (!(tmp= my_malloc(full_len,MYF(MY_WME))) ||
 	  set_dynamic(&file_names,(gptr)&ce,ce->file_id))
       {
 	die("Could not construct local filename %s%s",target_dir_name,bname);
@@ -96,6 +97,21 @@ class Load_log_processor
       memcpy(ptr,bname,blen);
       ptr+= blen;
       sprintf(ptr,"-%08x",ce->file_id);
+      ptr+= 9;
+
+      uint version= 0;
+      for (;;)
+      {
+	sprintf(ptr,"-%08x",version);
+	if (access(tmp,F_OK))
+	  break;
+	version++;
+	if (version>UINT_MAX)
+	{
+	  die("Could not construct local filename %s%s",target_dir_name,bname);
+	  return 0;
+	}
+      }
 
       ce->set_fname_outside_temp_buf(tmp,full_len);
 
@@ -169,6 +185,8 @@ public:
     }
   Create_file_log_event *grab_event(uint file_id)
     {
+      if (file_id >= file_names.elements)
+        return 0;
       Create_file_log_event **ptr= 
 	(Create_file_log_event**)file_names.buffer + file_id;
       Create_file_log_event *res= *ptr;
@@ -182,8 +200,12 @@ public:
     }
   void process(Append_block_log_event *ae)
     {
-      if (ae->file_id >= file_names.elements)
-      {
+      Create_file_log_event* ce= (ae->file_id < file_names.elements) ?
+          *((Create_file_log_event**)file_names.buffer + ae->file_id) : 0;
+        
+      if (ce)
+        append_to_file(ce->fname,O_APPEND|O_BINARY|O_WRONLY,ae->block,ae->block_len);
+      else
         /*
           There is no Create_file event (a bad binlog or a big
           --position). Assuming it's a big --position, we just do nothing and
@@ -191,11 +213,6 @@ public:
         */
 	fprintf(stderr,"Warning: ignoring Append_block as there is no \
 Create_file event for file_id: %u\n",ae->file_id);
-        return;
-      }
-      Create_file_log_event* ce= 
-	*((Create_file_log_event**)file_names.buffer + ae->file_id);
-      append_to_file(ce->fname,O_APPEND|O_BINARY|O_WRONLY,ae->block,ae->block_len);
     }
 };
 

extra/comp_err.c

@@ -109,7 +109,7 @@ int main(int argc,char *argv[])
   if (to)
     fclose(to);
   if (error)
-    fprintf(stderr,"Can't uppdate messagefile %s, errno: %d\n",*argv,errno);
+    fprintf(stderr,"Can't update messagefile %s, errno: %d\n",*argv,errno);
 
   exit(error);
   return(0);

heap/hp_test2.c

@@ -237,12 +237,12 @@ int main(int argc, char *argv[])
     {
       if (my_errno != HA_ERR_FOUND_DUPP_KEY || key3[n3] == 0)
       {
-	printf("error: %d; can't uppdate:\nFrom: \"%s\"\nTo:   \"%s\"\n",
+	printf("error: %d; can't update:\nFrom: \"%s\"\nTo:   \"%s\"\n",
 	       my_errno,record,record2);
 	goto err;
       }
       if (verbose)
-	printf("Double key when tryed to uppdate:\nFrom: \"%s\"\nTo:   \"%s\"\n",record,record2);
+	printf("Double key when tried to update:\nFrom: \"%s\"\nTo:   \"%s\"\n",record,record2);
     }
     else
     {

include/my_global.h

@@ -1105,4 +1105,14 @@ typedef union {
 #define statistic_add(V,C,L)       (V)+=(C)
 #endif
 
+#ifdef HAVE_OPENSSL
+#include <openssl/opensslv.h>
+#if OPENSSL_VERSION_NUMBER < 0x0090700f
+#define DES_cblock des_cblock
+#define DES_key_schedule des_key_schedule
+#define DES_set_key_unchecked(k,ks) des_set_key_unchecked((k),*(ks))
+#define DES_ede3_cbc_encrypt(i,o,l,k1,k2,k3,iv,e) des_ede3_cbc_encrypt((i),(o),(l),*(k1),*(k2),*(k3),(iv),(e))
+#endif
+#endif
+
 #endif /* my_global_h */

isam/test2.c

@@ -265,12 +265,12 @@ int main(int argc, char *argv[])
       {
 	if (my_errno != HA_ERR_FOUND_DUPP_KEY || key3[n3] == 0)
 	{
-	  printf("error: %d; can't uppdate:\nFrom: \"%s\"\nTo:   \"%s\"\n",
+	  printf("error: %d; can't update:\nFrom: \"%s\"\nTo:   \"%s\"\n",
 		 my_errno,read_record,record2);
 	  goto err;
 	}
 	if (verbose)
-	  printf("Double key when tryed to uppdate:\nFrom: \"%s\"\nTo:   \"%s\"\n",record,record2);
+	  printf("Double key when tried to update:\nFrom: \"%s\"\nTo:   \"%s\"\n",record,record2);
       }
       else
       {

myisam/mi_test2.c

@@ -329,12 +329,12 @@ int main(int argc, char *argv[])
       {
 	if (my_errno != HA_ERR_FOUND_DUPP_KEY || key3[n3] == 0)
 	{
-	  printf("error: %d; can't uppdate:\nFrom: \"%s\"\nTo:   \"%s\"\n",
+	  printf("error: %d; can't update:\nFrom: \"%s\"\nTo:   \"%s\"\n",
 		 my_errno,read_record,record2);
 	  goto err;
 	}
 	if (verbose)
-	  printf("Double key when tryed to uppdate:\nFrom: \"%s\"\nTo:   \"%s\"\n",record,record2);
+	  printf("Double key when tried to update:\nFrom: \"%s\"\nTo:   \"%s\"\n",record,record2);
       }
       else
       {

mysql-test/r/distinct.result

@@ -173,9 +173,9 @@ INSERT INTO t2 values (1),(2),(3);
 INSERT INTO t3 VALUES (1,'1'),(2,'2'),(1,'1'),(2,'2');
 explain SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t2	index	a	a	4	NULL	5	Using index; Using temporary
-t1	eq_ref	PRIMARY	PRIMARY	4	t2.a	1	
-t3	index	a	a	5	NULL	5	Using where; Using index
+t3	index	a	a	5	NULL	6	Using index; Using temporary
+t2	index	a	a	4	NULL	5	Using index; Distinct
+t1	eq_ref	PRIMARY	PRIMARY	4	t2.a	1	Using where; Distinct
 SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
 a
 1
@@ -303,9 +303,9 @@ t1	index	id	id	4	NULL	2	Using index; Using temporary
 t2	index	id	id	8	NULL	1	Using index; Distinct
 t3	index	id	id	8	NULL	1	Using index; Distinct
 j_lj_t2	index	id	id	4	NULL	2	Using where; Using index; Distinct
-t2_lj	index	id	id	8	NULL	1	Using where; Using index; Distinct
+t2_lj	ref	id	id	4	j_lj_t2.id	1	Using where; Using index; Distinct
 j_lj_t3	index	id	id	4	NULL	2	Using where; Using index; Distinct
-t3_lj	index	id	id	8	NULL	1	Using where; Using index; Distinct
+t3_lj	ref	id	id	4	j_lj_t3.id	1	Using where; Using index; Distinct
 SELECT DISTINCT
 t1.id
 from

mysql-test/r/order_by.result

@@ -307,17 +307,17 @@ table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	range	a	a	9	NULL	8	Using where; Using index
 explain select * from t1 where a = 2 and b >0 order by a desc,b desc;
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t1	range	a	a	9	NULL	4	Using where; Using index
+t1	range	a	a	9	NULL	5	Using where; Using index
 explain select * from t1 where a = 2 and b is null order by a desc,b desc;
 table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	ref	a	a	9	const,const	1	Using where; Using index; Using filesort
 explain select * from t1 where a = 2 and (b is null or b > 0) order by a
 desc,b desc;
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t1	range	a	a	9	NULL	5	Using where; Using index
+t1	range	a	a	9	NULL	6	Using where; Using index
 explain select * from t1 where a = 2 and b > 0 order by a desc,b desc;
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t1	range	a	a	9	NULL	4	Using where; Using index
+t1	range	a	a	9	NULL	5	Using where; Using index
 explain select * from t1 where a = 2 and b < 2 order by a desc,b desc;
 table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	range	a	a	9	NULL	2	Using where; Using index
@@ -466,8 +466,8 @@ t2	eq_ref	PRIMARY,uid	PRIMARY	4	t1.gid	1
 t3	eq_ref	PRIMARY	PRIMARY	2	t2.uid	1	Using where; Using index
 EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.gid = t3.uid order by t1.gid,t3.skr;
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t1	index	PRIMARY	PRIMARY	4	NULL	6	Using index
-t3	eq_ref	PRIMARY	PRIMARY	2	t1.gid	1	Using where
+t3	ALL	PRIMARY	NULL	NULL	NULL	6	Using temporary; Using filesort
+t1	eq_ref	PRIMARY	PRIMARY	4	t3.uid	1	Using where; Using index
 EXPLAIN SELECT t1.gid, t2.sid, t3.uid from t2, t1, t3 where t2.gid = t1.gid and t2.uid = t3.uid order by t3.uid, t1.gid;
 table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	index	PRIMARY	PRIMARY	4	NULL	6	Using index; Using temporary; Using filesort
@@ -475,8 +475,8 @@ t2	eq_ref	PRIMARY,uid	PRIMARY	4	t1.gid	1
 t3	eq_ref	PRIMARY	PRIMARY	2	t2.uid	1	Using where; Using index
 EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.gid = t3.uid order by t3.skr,t1.gid;
 table	type	possible_keys	key	key_len	ref	rows	Extra
-t1	index	PRIMARY	PRIMARY	4	NULL	6	Using index; Using temporary; Using filesort
-t3	eq_ref	PRIMARY	PRIMARY	2	t1.gid	1	Using where
+t3	ALL	PRIMARY	NULL	NULL	NULL	6	Using temporary; Using filesort
+t1	eq_ref	PRIMARY	PRIMARY	4	t3.uid	1	Using where; Using index
 EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.skr = t3.uid order by t1.gid,t3.skr;
 table	type	possible_keys	key	key_len	ref	rows	Extra
 t1	ALL	NULL	NULL	NULL	NULL	6	Using temporary; Using filesort

mysql-test/r/rpl000009.result

@@ -111,22 +111,10 @@ n	s
 2	two bar
 3	three bar
 4	four bar
-insert into bar.t1 values(10, 'should be there');
-flush tables;
-load data from master;
-Error on delete of './bar/t1.MYI' (Errcode: 13)
-select * from bar.t1;
-n	s
-1	one bar
-2	two bar
-3	three bar
-4	four bar
-10	should be there
 load table bar.t1 from master;
 Table 't1' already exists
 drop table bar.t1;
 load table bar.t1 from master;
-start slave;
 drop database bar;
 drop database foo;
 drop database foo;

mysql-test/t/rpl000009.test

@@ -110,13 +110,14 @@ select * from bar.t1;
 
 # Check that LOAD DATA FROM MASTER reports the error if it can't drop a
 # table to be overwritten.
-insert into bar.t1 values(10, 'should be there');
-flush tables;
-system chmod 500 var/slave-data/bar/;
---error 6
-load data from master;  # should fail (errno 13)
-system chmod 700 var/slave-data/bar/;
-select * from bar.t1; # should contain the row (10, ...)
+# DISABLED FOR NOW AS chmod IS NOT PORTABLE ON NON-UNIX
+# insert into bar.t1 values(10, 'should be there');
+# flush tables;
+# system chmod 500 var/slave-data/bar/;
+# --error 6
+# load data from master;  # should fail (errno 13)
+# system chmod 700 var/slave-data/bar/;
+# select * from bar.t1; # should contain the row (10, ...)
 
 
 # Check that LOAD TABLE FROM MASTER fails if the table exists on slave
@@ -126,7 +127,8 @@ drop table bar.t1;
 load table bar.t1 from master;
 
 # as LOAD DATA FROM MASTER failed it did not restart slave threads
-start slave;
+# DISABLED FOR NOW
+# start slave;
 
 # Now time for cleanup
 connection master;

mysys/default.c

@@ -387,6 +387,8 @@ static int search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
       *ptr++= '=';
       for ( ; value != value_end; value++)
       {
+	if (*value == '\"' || *value == '\'')
+	  continue;
 	if (*value == '\\' && value != value_end-1)
 	{
 	  switch(*++value) {
@@ -405,6 +407,12 @@ static int search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
 	  case 's':
 	    *ptr++= ' ';			/* space */
 	    break;
+	  case '\"':
+	    *ptr++= '\"';
+	    break;
+	  case '\'':
+	    *ptr++= '\'';
+	    break;
 	  case '\\':
 	    *ptr++= '\\';
 	    break;

sql/des_key_file.cc

@@ -76,16 +76,16 @@ load_des_key_file(const char *file_name)
 
       if (start != end)
       {
-	des_cblock ivec;
+	DES_cblock ivec;
 	bzero((char*) &ivec,sizeof(ivec));
 	// We make good 24-byte (168 bit) key from given plaintext key with MD5
 	EVP_BytesToKey(EVP_des_ede3_cbc(),EVP_md5(),NULL,
 		       (uchar *) start, (int) (end-start),1,
 		       (uchar *) &keyblock,
 		       ivec);
-	des_set_key_unchecked(&keyblock.key1,des_keyschedule[(int)offset].ks1);
-	des_set_key_unchecked(&keyblock.key2,des_keyschedule[(int)offset].ks2);
-	des_set_key_unchecked(&keyblock.key3,des_keyschedule[(int)offset].ks3);
+	DES_set_key_unchecked(&keyblock.key1,&(des_keyschedule[(int)offset].ks1));
+	DES_set_key_unchecked(&keyblock.key2,&(des_keyschedule[(int)offset].ks2));
+	DES_set_key_unchecked(&keyblock.key3,&(des_keyschedule[(int)offset].ks3));
 	if (des_default_key == 15)
 	  des_default_key= (uint) offset;		// use first as def.
       }

sql/item_strfunc.cc

@@ -330,7 +330,7 @@ void Item_func_concat::fix_length_and_dec()
 String *Item_func_des_encrypt::val_str(String *str)
 {
 #ifdef HAVE_OPENSSL
-  des_cblock ivec;
+  DES_cblock ivec;
   struct st_des_keyblock keyblock;
   struct st_des_keyschedule keyschedule;
   const char *append_str="********";
@@ -370,9 +370,9 @@ String *Item_func_des_encrypt::val_str(String *str)
     EVP_BytesToKey(EVP_des_ede3_cbc(),EVP_md5(),NULL,
 		   (uchar*) keystr->ptr(), (int) keystr->length(),
 		   1, (uchar*) &keyblock,ivec);
-    des_set_key_unchecked(&keyblock.key1,keyschedule.ks1);
-    des_set_key_unchecked(&keyblock.key2,keyschedule.ks2);
-    des_set_key_unchecked(&keyblock.key3,keyschedule.ks3);
+    DES_set_key_unchecked(&keyblock.key1,&keyschedule.ks1);
+    DES_set_key_unchecked(&keyblock.key2,&keyschedule.ks2);
+    DES_set_key_unchecked(&keyblock.key3,&keyschedule.ks3);
   }
 
   /* 
@@ -393,12 +393,12 @@ String *Item_func_des_encrypt::val_str(String *str)
   tmp_value[0]=(char) (128 | key_number);
   // Real encryption
   bzero((char*) &ivec,sizeof(ivec));
-  des_ede3_cbc_encrypt((const uchar*) (res->ptr()),
+  DES_ede3_cbc_encrypt((const uchar*) (res->ptr()),
 		       (uchar*) (tmp_value.ptr()+1),
 		       res_length,
-		       keyschedule.ks1,
-		       keyschedule.ks2,
-		       keyschedule.ks3,
+		       &keyschedule.ks1,
+		       &keyschedule.ks2,
+		       &keyschedule.ks3,
 		       &ivec, TRUE);
   return &tmp_value;
 
@@ -412,8 +412,8 @@ error:
 String *Item_func_des_decrypt::val_str(String *str)
 {
 #ifdef HAVE_OPENSSL
-  des_key_schedule ks1, ks2, ks3;
-  des_cblock ivec;
+  DES_key_schedule ks1, ks2, ks3;
+  DES_cblock ivec;
   struct st_des_keyblock keyblock;
   struct st_des_keyschedule keyschedule;
   String *res= args[0]->val_str(str);
@@ -447,20 +447,20 @@ String *Item_func_des_decrypt::val_str(String *str)
 		   (uchar*) keystr->ptr(),(int) keystr->length(),
 		   1,(uchar*) &keyblock,ivec);
     // Here we set all 64-bit keys (56 effective) one by one
-    des_set_key_unchecked(&keyblock.key1,keyschedule.ks1);
-    des_set_key_unchecked(&keyblock.key2,keyschedule.ks2);
-    des_set_key_unchecked(&keyblock.key3,keyschedule.ks3); 
+    DES_set_key_unchecked(&keyblock.key1,&keyschedule.ks1);
+    DES_set_key_unchecked(&keyblock.key2,&keyschedule.ks2);
+    DES_set_key_unchecked(&keyblock.key3,&keyschedule.ks3); 
   }
   if (tmp_value.alloc(length-1))
     goto error;
 
   bzero((char*) &ivec,sizeof(ivec));
-  des_ede3_cbc_encrypt((const uchar*) res->ptr()+1,
+  DES_ede3_cbc_encrypt((const uchar*) res->ptr()+1,
 		       (uchar*) (tmp_value.ptr()),
 		       length-1,
-		       keyschedule.ks1,
-		       keyschedule.ks2,
-		       keyschedule.ks3,
+		       &keyschedule.ks1,
+		       &keyschedule.ks2,
+		       &keyschedule.ks3,
 		       &ivec, FALSE);
   /* Restore old length of key */
   if ((tail=(uint) (uchar) tmp_value[length-2]) > 8)

sql/mysql_priv.h

@@ -474,11 +474,11 @@ Field *find_field_in_table(THD *thd,TABLE *table,const char *name,uint length,
 #include <openssl/des.h>
 struct st_des_keyblock 
 { 
-  des_cblock key1, key2, key3; 
+  DES_cblock key1, key2, key3; 
 };
 struct st_des_keyschedule
 {
-  des_key_schedule ks1, ks2, ks3;
+  DES_key_schedule ks1, ks2, ks3;
 };
 extern char *des_key_file;
 extern struct st_des_keyschedule des_keyschedule[10];

sql/sql_select.cc

@@ -1898,7 +1898,7 @@ find_best(JOIN *join,table_map rest_tables,uint idx,double record_count,
       best=best_time=records=DBL_MAX;
       KEYUSE *best_key=0;
       uint best_max_key_part=0;
-      my_bool found_constrain= 0;
+      my_bool found_constraint= 0;
 
       if (s->keyuse)
       {						/* Use key if possible */
@@ -1979,7 +1979,7 @@ find_best(JOIN *join,table_map rest_tables,uint idx,double record_count,
           }
           else
           {
-	  found_constrain= 1;
+	  found_constraint= 1;
 	  /*
 	    Check if we found full key
 	  */
@@ -2133,12 +2133,28 @@ find_best(JOIN *join,table_map rest_tables,uint idx,double record_count,
 	    s->table->used_keys && best_key) &&
 	  !(s->table->force_index && best_key))
       {						// Check full join
+        ha_rows rnd_records= s->found_records;
         /* Estimate cost of reading table. */
-        tmp= (double) s->read_time;
+        tmp= s->table->file->scan_time();
+        /*
+          If there is a restriction on the table, assume that 25% of the
+          rows can be skipped on next part.
+          This is to force tables that this table depends on before this
+          table
+        */
+        if (found_constraint)
+          rnd_records-= rnd_records/4;
+
         if (s->on_expr)                         // Can't use join cache
         {
-          /* We have to read the whole table for each record */
-          tmp*= record_count;
+          tmp= record_count *
+               /* We have to read the whole table for each record */
+               (tmp +     
+               /*
+                 And we have to skip rows which does not satisfy join
+                 condition for each record.
+               */
+               (s->records - rnd_records)/(double) TIME_FOR_COMPARE);
         }
         else
         {
@@ -2146,30 +2162,25 @@ find_best(JOIN *join,table_map rest_tables,uint idx,double record_count,
           tmp*= (1.0 + floor((double) cache_record_length(join,idx) *
                              record_count /
                              (double) thd->variables.join_buff_size));
+          /* 
+            We don't make full cartesian product between rows in the scanned
+            table and existing records because we skip all rows from the
+            scanned table, which does not satisfy join condition when 
+            we read the table (see flush_cached_records for details). Here we
+            take into account cost to read and skip these records.
+          */
+          tmp+= (s->records - rnd_records)/(double) TIME_FOR_COMPARE;
         }
 
         /*
-          We estimate the cost of making full cortesian product between
-          rows in the scanned table and generated records as
-          record_count*s->records/TIME_FOR_COMPARE. Taking into account
-          cost of evaluating WHERE clause for s->found_records is not
-          necessary because it costs much less than the cost mentioned
-          above.
+          We estimate the cost of evaluating WHERE clause for found records
+          as record_count * rnd_records + TIME_FOR_COMPARE. This cost plus
+          tmp give us total cost of using TABLE SCAN
         */
 	if (best == DBL_MAX ||
-	    (tmp  + record_count/(double) TIME_FOR_COMPARE*s->records <
+	    (tmp  + record_count/(double) TIME_FOR_COMPARE*rnd_records <
 	     best + record_count/(double) TIME_FOR_COMPARE*records))
 	{
-          /*
-            If there is a restriction on the table, assume that 25% of the
-            rows can be skipped on next part.
-            This is to force tables that this table depends on before this
-            table
-          */
-          ha_rows rnd_records= s->found_records;
-          if (found_constrain)
-            rnd_records-= rnd_records/4;
-          
 	  /*
 	    If the table has a range (s->quick is set) make_join_select()
 	    will ensure that this will be used

support-files/mysql.server.sh

@@ -178,7 +178,7 @@ case "$mode" in
       # delete lock for RedHat / SuSE
       if test -f /var/lock/subsys/mysql
       then
-        rm /var/lock/subsys/mysql
+        rm -f /var/lock/subsys/mysql
       fi
     else
       echo "No mysqld pid file found. Looked for $pid_file."