Safety fix to enable RAID in max binaries

Better fix for format('nan')
Fix for HAVING COUNT(DISTINCT...)

myisam/mi_check.c

@@ -873,14 +873,18 @@ int chk_data_link(MI_CHECK *param, MI_INFO *info,int extend)
 	{
 	  if (b_type & BLOCK_LAST)
 	  {
-	    mi_check_print_error(param,"Record link to short for record at %s",
-			llstr(start_recpos,llbuff));
+	    mi_check_print_error(param,
+				 "Wrong record length %s of %s at %s",
+				 llstr(block_info.rec_len-left_length,llbuff),
+				 llstr(block_info.rec_len, llbuff2),
+				 llstr(start_recpos,llbuff3));
 	    got_error=1;
 	    break;
 	  }
 	  if (info->state->data_file_length < block_info.next_filepos)
 	  {
-	    mi_check_print_error(param,"Found next-recordlink that points outside datafile at %s",
+	    mi_check_print_error(param,
+				 "Found next-recordlink that points outside datafile at %s",
 				 llstr(block_info.filepos,llbuff));
 	    got_error=1;
 	    break;

myisam/mi_dynrec.c

@@ -1412,10 +1412,7 @@ uint _mi_get_block_info(MI_BLOCK_INFO *info, File file, my_off_t filepos)
     VOID(my_seek(file,filepos,MY_SEEK_SET,MYF(0)));
     if (my_read(file,(char*) header,sizeof(info->header),MYF(0)) !=
 	sizeof(info->header))
-    {
-      my_errno=HA_ERR_WRONG_IN_RECORD;
-      return BLOCK_FATAL_ERROR;
-    }
+      goto err;
   }
   DBUG_DUMP("header",(byte*) header,MI_BLOCK_INFO_HEADER_LENGTH);
   if (info->second_read)
@@ -1435,10 +1432,7 @@ uint _mi_get_block_info(MI_BLOCK_INFO *info, File file, my_off_t filepos)
     if ((info->block_len=(uint) mi_uint3korr(header+1)) <
 	MI_MIN_BLOCK_LENGTH ||
 	(info->block_len & (MI_DYN_ALIGN_SIZE -1)))
-    {
-      my_errno=HA_ERR_WRONG_IN_RECORD;
-      return BLOCK_ERROR;
-    }
+      goto err;
     info->filepos=filepos;
     info->next_filepos=mi_sizekorr(header+4);
     info->prev_filepos=mi_sizekorr(header+12);
@@ -1449,7 +1443,7 @@ uint _mi_get_block_info(MI_BLOCK_INFO *info, File file, my_off_t filepos)
 	(mi_uint4korr(header+12) != 0 &&
 	 (mi_uint4korr(header+12) != (ulong) ~0 ||
 	  info->prev_filepos != (ulong) ~0)))
-      return BLOCK_FATAL_ERROR;
+      goto err;
 #endif
     return return_val | BLOCK_DELETED;		/* Deleted block */
 
@@ -1529,8 +1523,9 @@ uint _mi_get_block_info(MI_BLOCK_INFO *info, File file, my_off_t filepos)
     info->second_read=1;
     info->filepos=filepos+12;
     return return_val;
-  default:
+  }
+
+err:
   my_errno=HA_ERR_WRONG_IN_RECORD;	 /* Garbage */
   return BLOCK_ERROR;
-  }
 }

myisam/myisamchk.c

@@ -44,6 +44,7 @@ static const char *load_default_groups[]= { "myisamchk", 0 };
 static const char *set_charset_name;
 static CHARSET_INFO *set_charset;
 static long opt_myisam_block_size;
+static const char *my_progname_short;
 
 static const char *type_names[]=
 { "?","char","binary", "short", "long", "float",
@@ -85,6 +86,7 @@ int main(int argc, char **argv)
 {
   int error;
   MY_INIT(argv[0]);
+  my_progname_short= my_progname+dirname_length(my_progname);
 
 #ifdef __EMX__
   _wildcard (&argc, &argv);
@@ -330,7 +332,7 @@ static void usage(void)
   puts("This software comes with NO WARRANTY: see the PUBLIC for details.\n");
   puts("Description, check and repair of MyISAM tables.");
   puts("Used without options all tables on the command will be checked for errors");
-  printf("Usage: %s [OPTIONS] tables[.MYI]\n", my_progname);
+  printf("Usage: %s [OPTIONS] tables[.MYI]\n", my_progname_short);
   puts("\nGlobal options:\n\
   -#, --debug=...     Output debug log. Often this is 'd:t:o,filename'\n\
   -?, --help          Display this help and exit.\n\
@@ -679,7 +681,7 @@ static void get_options(register int *argc,register char ***argv)
   {
     VOID(fprintf(stderr,
 		 "%s: --unpack can't be used with --quick or --sort-records\n",
-		 my_progname));
+		 my_progname_short));
     exit(1);
   }
   if ((check_param.testflag & T_READONLY) &&
@@ -689,7 +691,7 @@ static void get_options(register int *argc,register char ***argv)
   {
     VOID(fprintf(stderr,
 		 "%s: Can't use --readonly when repairing or sorting\n",
-		 my_progname));
+		 my_progname_short));
     exit(1);
   }
 
@@ -1655,13 +1657,13 @@ void mi_check_print_warning(MI_CHECK *param, const char *fmt,...)
   if (!param->warning_printed && !param->error_printed)
   {
     if (param->testflag & T_SILENT)
-      fprintf(stderr,"%s: MyISAM file %s\n",my_progname,
+      fprintf(stderr,"%s: MyISAM file %s\n",my_progname_short,
 	      param->isam_file_name);
     param->out_flag|= O_DATA_LOST;
   }
   param->warning_printed=1;
   va_start(args,fmt);
-  fprintf(stderr,"%s: warning: ",my_progname);
+  fprintf(stderr,"%s: warning: ",my_progname_short);
   VOID(vfprintf(stderr, fmt, args));
   VOID(fputc('\n',stderr));
   fflush(stderr);
@@ -1681,12 +1683,12 @@ void mi_check_print_error(MI_CHECK *param, const char *fmt,...)
   if (!param->warning_printed && !param->error_printed)
   {
     if (param->testflag & T_SILENT)
-      fprintf(stderr,"%s: MyISAM file %s\n",my_progname,param->isam_file_name);
+      fprintf(stderr,"%s: MyISAM file %s\n",my_progname_short,param->isam_file_name);
     param->out_flag|= O_DATA_LOST;
   }
   param->error_printed|=1;
   va_start(args,fmt);
-  fprintf(stderr,"%s: error: ",my_progname);
+  fprintf(stderr,"%s: error: ",my_progname_short);
   VOID(vfprintf(stderr, fmt, args));
   VOID(fputc('\n',stderr));
   fflush(stderr);

mysql-test/r/func_misc.result

@@ -10,3 +10,6 @@ inet_aton("255.255.255.255.255")	inet_aton("255.255.1.255")	inet_aton("0.1.255")
 select inet_ntoa(1099511627775),inet_ntoa(4294902271),inet_ntoa(511);
 inet_ntoa(1099511627775)	inet_ntoa(4294902271)	inet_ntoa(511)
 NULL	255.255.1.255	0.0.1.255
+select length(format('nan', 2)) > 0;
+length(format('nan', 2)) > 0
+1

mysql-test/r/having.result

@@ -69,4 +69,12 @@ select id, sum(qty) as sqty from t1 group by id having sqty>2;
 id	sqty
 1	5
 2	9
+select sum(qty) as sqty from t1 group by id having count(id) > 0;
+sqty
+5
+9
+select sum(qty) as sqty from t1 group by id having count(distinct id) > 0;
+sqty
+5
+9
 drop table t1;

mysql-test/t/func_misc.test

@@ -7,3 +7,8 @@ select format(1.5555,0),format(123.5555,1),format(1234.5555,2),format(12345.5555
 select inet_ntoa(inet_aton("255.255.255.255.255.255.255.255"));
 select inet_aton("255.255.255.255.255"),inet_aton("255.255.1.255"),inet_aton("0.1.255");
 select inet_ntoa(1099511627775),inet_ntoa(4294902271),inet_ntoa(511);
+
+#
+# Test for core dump with nan
+#
+select length(format('nan', 2)) > 0;

mysql-test/t/having.test

@@ -63,4 +63,6 @@ drop table t1;
 create table t1 (id int not null, qty int not null);
 insert into t1 values (1,2),(1,3),(2,4),(2,5);
 select id, sum(qty) as sqty from t1 group by id having sqty>2;
+select sum(qty) as sqty from t1 group by id having count(id) > 0;
+select sum(qty) as sqty from t1 group by id having count(distinct id) > 0;
 drop table t1;

mysys/raid.cc

@@ -157,10 +157,10 @@ extern "C" {
     DBUG_PRINT("enter",("Fd: %d  pos: %lu whence: %d  MyFlags: %d",
 			fd, (ulong) pos, whence, MyFlags));
 
-    assert(pos != MY_FILEPOS_ERROR);
-
     if (is_raid(fd))
     {
+      assert(pos != MY_FILEPOS_ERROR);
+
       RaidFd *raid= (*dynamic_element(&RaidFd::_raid_map,fd,RaidFd**));
       DBUG_RETURN(raid->Seek(pos,whence,MyFlags));
     }

scripts/mysql_install_db.sh

@@ -118,7 +118,8 @@ then
     resolved=`$bindir/resolveip localhost 2>&1`
     if [ $? -eq 0 ]
     then
-      echo "Sorry, the host '$hostname' could not be looked up."
+      echo "Neither host '$hostname' and 'localhost' could not be looked up with"
+      echo "$bindir/resolveip"
       echo "Please configure the 'hostname' command to return a correct hostname."
       echo "If you want to solve this at a later stage, restart this script with"
       echo "the --force option"
@@ -134,15 +135,12 @@ then
 fi
 
 # Create database directories mysql & test
-if test "$IN_RPM" -eq 0
-then
   if test ! -d $ldata; then mkdir $ldata; chmod 700 $ldata ; fi
   if test ! -d $ldata/mysql; then mkdir $ldata/mysql;  chmod 700 $ldata/mysql ; fi
   if test ! -d $ldata/test; then mkdir $ldata/test;  chmod 700 $ldata/test ; fi
   if test -w / -a ! -z "$user"; then
     chown $user $ldata $ldata/mysql $ldata/test;
   fi
-fi
 
 # Initialize variables
 c_d="" i_d=""

sql/item_strfunc.cc

@@ -1473,15 +1473,17 @@ String *Item_func_format::val_str(String *str)
   str_length=str->length();
   if (nr < 0)
     str_length--;				// Don't count sign
-  length=str->length()+(diff=(str_length- dec-1)/3);
-  if (diff && diff < 330) // size of buff ...
+
+  /* We need this test to handle 'nan' values */
+  if (str_length >= dec+4)
   {
     char *tmp,*pos;
-    str=copy_if_not_alloced(&tmp_str,str,length);
+    length= str->length()+(diff=(str_length- dec-1)/3);
+    str= copy_if_not_alloced(&tmp_str,str,length);
     str->length(length);
-    tmp=(char*) str->ptr()+length - dec-1;
-    for (pos=(char*) str->ptr()+length ; pos != tmp; pos--)
-      pos[0]=pos[- (int) diff];
+    tmp= (char*) str->ptr()+length - dec-1;
+    for (pos= (char*) str->ptr()+length ; pos != tmp; pos--)
+      pos[0]= pos[-(int) diff];
     while (diff)
     {
       pos[0]=pos[-(int) diff]; pos--;

sql/mysqld.cc

@@ -1607,6 +1607,7 @@ static void init_signals(void)
     sa.sa_handler=handle_segfault;
 #endif
     sigaction(SIGSEGV, &sa, NULL);
+    sigaction(SIGABRT, &sa, NULL);
 #ifdef SIGBUS
     sigaction(SIGBUS, &sa, NULL);
 #endif

sql/sql_yacc.yy

@@ -2017,8 +2017,12 @@ sum_expr:
 	  { $$=new Item_sum_count(new Item_int((int32) 0L,1)); }
 	| COUNT_SYM '(' in_sum_expr ')'
 	  { $$=new Item_sum_count($3); }
-	| COUNT_SYM '(' DISTINCT expr_list ')'
-	  { $$=new Item_sum_count_distinct(* $4); }
+	| COUNT_SYM '(' DISTINCT
+	  { Select->in_sum_expr++; }
+	   expr_list
+	  { Select->in_sum_expr--; }
+	  ')'
+	  { $$=new Item_sum_count_distinct(* $5); }
 	| GROUP_UNIQUE_USERS '(' text_literal ',' NUM ',' NUM ',' in_sum_expr ')'
 	  { $$= new Item_sum_unique_users($3,atoi($5.str),atoi($7.str),$9); }
 	| MIN_SYM '(' in_sum_expr ')'

tests/big_record.pl

@@ -11,12 +11,13 @@ use Getopt::Long;
 $opt_host="";
 $opt_user=$opt_password="";
 $opt_db="test";
-$opt_rows=200;			# Test of blobs up to ($rows-1)*100000+1 bytes
+$opt_rows=20;			# Test of blobs up to ($rows-1)*100000+1 bytes
 $opt_compress=0;
 $opt_table="test_big_record";
+$opt_loop_count=100000; # Change this to make test harder/easier
 
 GetOptions("host=s","db=s","user=s", "password=s", "table=s", "rows=i",
-	   "compress") || die "Aborted";
+	   "compress", "loop-count=i") || die "Aborted";
 
 print "Connection to database $test_db\n";
 
@@ -42,12 +43,12 @@ $|=1;	# Flush output to stdout to be able to monitor process
 for ($i=0 ; $i < $opt_rows ; $i++)
 {
   $tmp= chr(65+($i % 16)) x ($i*100000+1);
-  print $i," ",length($tmp),"\n";
   $tmp= $dbh->quote($tmp);
   $dbh->do("insert into $opt_table (test) values ($tmp)") or die $DBI::errstr;
+  print ".";
 }
 
-print "Reading records\n";
+print "\nReading records\n";
 
 $sth=$dbh->prepare("select * from $opt_table", { "mysql_use_result" => 1}) or die $dbh->errstr;
 
@@ -56,14 +57,40 @@ $sth->execute() or die $sth->errstr;
 $i=0;
 while (($row = $sth->fetchrow_arrayref))
 {
-  print $row->[0]," ",length($row->[1]),"\n";
   die "Record $i had wrong data in blob" if ($row->[1] ne (chr(65+($i % 16)) x ($i*100000+1)));
   $i++;
 }
 
 die "Didn't get all rows from server" if ($i != $opt_rows);
 
-$dbh->do("drop table $opt_table") or die $DBI::errstr;
+#
+# Test by insert/updating/deleting random rows for a while
+#
 
-print "Test ok\n";
+print "Testing insert/update/delete\n";
+
+$max_row_id= $rows;
+for ($i= 0 ; $i < $opt_loop_count ; $i++)
+{
+  $length= int(rand 65535);
+  $tmp= chr(65+($i % 16)) x $length;
+  $tmp= $dbh->quote($tmp);
+  $dbh->do("insert into $opt_table (test) values ($tmp)") or die $DBI::errstr;
+  $max_row_id++;
+  $length=int(rand 65535);
+  $tmp= chr(65+($i % 16)) x $length;
+  $tmp= $dbh->quote($tmp);
+  $id= int(rand $max_row_id);
+  $dbh->do("update $opt_table set test= $tmp where auto= $id") or die $DBI::errstr;
+  if (($i % 2) == 1)
+  {
+    $id= int(rand $max_row_id);
+    $dbh->do("delete from $opt_table where auto= $id") or die $DBI::errstr;
+  }
+  print "." if ($i % ($opt_loop_count/100) == 1);
+}
+
+# $dbh->do("drop table $opt_table") or die $DBI::errstr;
+
+print "\nTest ok\n";
 exit 0;

tests/table_types.pl

@@ -66,13 +66,6 @@ $dbh = $server->connect();
 ####
 
 $table_name="bench1";
-<<<<<<< table_types.pl
-||||||| 1.2
-test("n","type=isam","char"); test("m","type=myisam pack_keys=1","char"); exit(1);
-
-=======
-
->>>>>>> /tmp/T4a17019
 test($table_name,"type=isam","char");
 test($table_name,"type=myisam pack_keys=0","char");
 test($table_name,"type=myisam pack_keys=0","char");