Fixed <=>

Added mysqltest for <=>
Removed use of TAB in output from mysql-test-run

Docs/manual.texi

@@ -9232,7 +9232,6 @@ problems. @xref{Windows}.
 If you are using BDB (Berkeley DB) tables, you should familiarize
 yourself with the different BDB specific startup options. @xref{BDB start}.
 
-
 @node Automatic start, Command-line options, Starting server, Post-installation
 @subsection Starting and Stopping MySQL Automatically
 @cindex starting, the server automatically
@@ -28765,11 +28764,12 @@ connection and the server you are using. If you are running in the
 the @code{mysql} variables that affect your queries.
 
 @cindex @code{safe-mode} command
-A useful startup option for beginners (introduced in @strong{MySQL} Version 3.23.11) is
-@code{--safe-mode} (or @code{--i-am-a-dummy} for users that has at some
-time done a @code{DELETE FROM table_name} but forgot the @code{WHERE}
-clause.  When using this option, @code{mysql} sends the following
-command to the @strong{MySQL} server when opening the connection:
+A useful startup option for beginners (introduced in @strong{MySQL}
+Version 3.23.11) is @code{--safe-mode} (or @code{--i-am-a-dummy} for
+users that has at some time done a @code{DELETE FROM table_name} but
+forgot the @code{WHERE} clause.  When using this option, @code{mysql}
+sends the following command to the @strong{MySQL} server when opening
+the connection:
 
 @example
 SET SQL_SAFE_UPDATES=1,SQL_SELECT_LIMIT=#select_limit#,
@@ -39782,6 +39782,8 @@ though, so Version 3.23 is not released as a stable version yet.
 @appendixsubsec Changes in release 3.23.29
 @itemize @bullet
 @item
+Fixed bug in <=> operator.
+@item
 Fixed bug in @code{REPLACE} with BDB tables.
 @item
 @code{LPAD()} and @code{RPAD()} will shorten the result string if it's longer

client/mysqltest.c

@@ -42,7 +42,6 @@
 #include <errno.h>
 
 #define MAX_QUERY  16384
-#define MAX_RECORD_FILE 128
 #define PAD_SIZE        128
 #define MAX_CONS   1024
 #define MAX_INCLUDE_DEPTH 16
@@ -109,7 +108,7 @@ struct query
   int first_word_len;
   int abort_on_error;
   uint expected_errno;
-  char record_file[MAX_RECORD_FILE];
+  char record_file[FN_REFLEN];
   enum {Q_CONNECTION, Q_QUERY, Q_CONNECT,
 	Q_SLEEP, Q_INC, Q_DEC,Q_SOURCE,
 	Q_DISCONNECT,Q_LET, Q_ECHO, Q_WHILE, Q_END_BLOCK,
@@ -928,6 +927,7 @@ void usage()
   -P, --port=...           Port number to use for connection.\n\
   -S, --socket=...         Socket file to use for connection.\n\
   -r, --record             Record output of test_file into result file.\n\
+  -R, --result-file=...    Store result in this file\n\
   -v, --verbose            Write more.\n\
   -q, --quiet, --silent    Suppress all normal output.\n\
   -V, --version            Output version information and exit.\n\n");
@@ -1024,22 +1024,21 @@ char* safe_str_append(char* buf, const char* str, int size)
 void str_to_file(const char* fname, char* str, int size)
 {
   int fd;
-  if((fd = my_open(fname, O_WRONLY|O_CREAT, MYF(MY_WME))) < 0)
+  if((fd = my_open(fname, O_WRONLY|O_CREAT, MYF(MY_WME | MY_FFNF))) < 0)
     die("Could not open %s: errno = %d", fname, errno);
-  if(my_write(fd, (byte*)str, size, MYF(MY_WME|MY_NABP)))
+  if(my_write(fd, (byte*)str, size, MYF(MY_WME|MY_FNABP)))
     die("write failed");
   my_close(fd, MYF(0));
 }
 
 void reject_dump(const char* record_file, char* buf, int size)
 {
-  char reject_file[MAX_RECORD_FILE+16];
+  char reject_file[FN_REFLEN];
   char* p;
 
-  p = reject_file;
-  p = safe_str_append(p, record_file, sizeof(reject_file));
-  p = safe_str_append(p, (char*)".reject", reject_file - p +
-		      sizeof(reject_file));
+  if (strlen(record_file) >= FN_REFLEN-8)
+    die("too long path name for reject");
+  strmov(strmov(reject_file, record_file),".reject");
   str_to_file(reject_file, buf, size);
 }
 

mysql-test/README

@@ -16,14 +16,27 @@ You can create your own test cases. To create a test case:
  in the file, put a set of SQL commands that will create some tables,
  load test data, run some queries to manipulate it.
 
- then do ./mysql-test-run -record test_case_name
- and look at r/test_case_name.result - edit the result if necessary. If you
- have to edit it, you have found a bug.
+ We would appreciate if the test tables were called t1, t2, t3 ... (to not
+ conflict too much with existing tables).
+ 
+ If you are using mysqltest commands (like result file names) in your
+ test case you should do create the result file as follows:
+
+ mysql-test-run --record < t/test_case_name.test
+
+ If you only have a simple test cases consistent of SQL commands and comments
+ you can create the test case one of the following ways:
+
+ mysql < t/test_case_name.test > r/test_case_name.result
+
+ mysql-test-run --record --record-file=r/test_case_name.result < t/test_case_name.test
+
+ When this is done, take a look at r/test_case_name.result
+ - If the result is wrong, you have found a bug;  In this case you should
+   edit the test result to the correct results so that we can verify
+   that the bug is corrected in future releases.
 
 To submit your test case, put your .test file and .result file(s) into
 a tar.gz archive, add a README that explains the problem, ftp the 
 archive to ftp://support.mysql.com/pub/mysql/secret/ and send  a mail
 to bugs@lists.mysql.com
-
-
-

mysql-test/mysql-test-run.sh

 #! /bin/sh
 # mysql-test-run - originally written by Matt Wagner <matt@mysql.com>
 # modified by Sasha Pachev <sasha@mysql.com>
+# Sligtly updated by Monty
 
 #++
 # Access Definitions
@@ -23,9 +24,9 @@ else
  if [ -f ./mysql-test-run ] && [ -d ../sql ] ; then
  SOURCE_DIST=1
  else
-  echo "If you are using binary distribution, run me from install root as \
-   scripts/mysql-test-run. On source distribution run me from source root as \
-   mysql-test/mysql-test-run or from mysql-test as ./mysql-test-run"
+  echo "If you are using binary distribution, run me from install root as"
+  echo "scripts/mysql-test-run. On source distribution run me from source root"
+  echo "as mysql-test/mysql-test-run or from mysql-test as ./mysql-test-run"
   exit 1
  fi
  
@@ -44,6 +45,7 @@ BASEDIR=`pwd`
 cd $CWD
 MYSQL_TEST_DIR=$BASEDIR/mysql-test
 STD_DATA=$MYSQL_TEST_DIR/std_data
+SED=sed
   
 TESTDIR="$MYSQL_TEST_DIR/t/"
 TESTSUFFIX=test
@@ -55,7 +57,6 @@ SYST=0
 REALT=0
 MY_TMP_DIR=$MYSQL_TEST_DIR/var/tmp
 TIMEFILE="$MYSQL_TEST_DIR/var/tmp/mysqltest-time"
-DASHBLANK="----	----	-------"
 RES_SPACE="      "
 MYSQLD_SRC_DIRS="strings mysys include extra regex isam merge myisam \
  myisammrg heap sql"
@@ -69,13 +70,7 @@ SLAVE_RUNNING=0
 
 [ -z "$COLUMNS" ] && COLUMNS=80
 E=`expr $COLUMNS - 8`
-C=0
-
-while [ $C != $E ]
-do
-  DASH72="${DASH72}-"
-  C=`expr $C + 1`
-done
+DASH72=`expr substr '________________________________________________________________________' 1 $E`
 
 #++
 # mysqld Environment Parameters
@@ -193,6 +188,10 @@ error () {
     exit 1
 }
 
+prefix_to_8() {
+ echo "        $1" | $SED -e 's:.*\(........\)$:\1:'
+}
+
 pass_inc () {
     TOT_PASS=`$EXPR $TOT_PASS + 1`
 }
@@ -393,8 +392,7 @@ mysql_loadstd () {
 run_testcase ()
 {
  tf=$1
- tname=`$BASENAME $tf`
- tname=`$ECHO $tname | $CUT -d . -f 1`
+ tname=`$BASENAME $tf .test`
  master_opt_file=$TESTDIR/$tname-master.opt
  slave_opt_file=$TESTDIR/$tname-slave.opt
  slave_master_info_file=$TESTDIR/$tname-slave-master-info.opt
@@ -459,23 +457,27 @@ run_testcase ()
 	mytime=`$CAT $TIMEFILE | $TR '\n' '-'`
 
 	USERT=`$ECHO $mytime | $CUT -d - -f 2 | $CUT -d ' ' -f 2`
+        USERT=`prefix_to_8 $USERT`
 	SYST=`$ECHO $mytime | $CUT -d - -f 3 | $CUT -d ' ' -f 2`
+        SYST=`prefix_to_8 $SYST`
 	REALT=`$ECHO $mytime | $CUT -d - -f 1 | $CUT -d ' ' -f 2`
+        REALT=`prefix_to_8 $REALT`
     else
-	USERT="...."
-	SYST="...."
-	REALT="...."
+	USERT="    ...."
+	SYST="    ...."
+	REALT="    ...."
     fi
 
 	timestr="$USERT $SYST $REALT"
-	outstr="$tname		$timestr"
+	pname=`$EXPR substr "$tname                 " 1 16`
+	$SETCOLOR_NORMAL && $ECHO -n "$pname          $timestr"
 
 
 	total_inc
 
     if [ $res != 0 ]; then
         fail_inc
-	echo "$outstr $RES_SPACE [ fail ]"
+	echo "$RES_SPACE [ fail ]"
         $ECHO "failed output"
 	$CAT $TIMEFILE
 	$ECHO
@@ -491,7 +493,7 @@ run_testcase ()
 	echo "Resuming Tests"
     else
       pass_inc
-      echo "$outstr $RES_SPACE [ pass ]"    	
+      echo "$RES_SPACE [ pass ]"
     fi
   fi  
  

mysql-test/r/equal.result

+0<=>0	0.0<=>0.0	"A"<=>"A"	NULL<=>NULL	
+1	1	1	1	
+1<=>0	0<=>NULL	NULL<=>0	
+0	0	0	
+1.0<=>0.0	0.0<=>NULL	NULL<=>0.0	
+0	0	0	
+"A"<=>"B"	"A"<=>NULL	NULL<=>"A"	
+0	0	0	
+id	value	id	value	t1.value<=>t2.value	
+1	NULL	1	NULL	1	
+id	value	
+1	NULL	
+id	value	
+1	NULL	
+id	value	

mysql-test/t/equal.test

+#
+# Testing of the <=> operator
+#
+
+#
+# First some simple tests
+#
+
+select 0<=>0,0.0<=>0.0,"A"<=>"A",NULL<=>NULL;
+select 1<=>0,0<=>NULL,NULL<=>0;
+select 1.0<=>0.0,0.0<=>NULL,NULL<=>0.0;
+select "A"<=>"B","A"<=>NULL,NULL<=>"A";
+
+#
+# Test with tables
+#
+
+drop table if exists t1,t2;
+create table t1 (id int, value int);
+create table t2 (id int, value int);
+
+insert into t1 values (1,null);
+insert into t2 values (1,null);
+
+select t1.*, t2.*, t1.value<=>t2.value from t1, t2 where t1.id=t2.id and t1.id=1;
+select * from t1 where id <=>id;
+select * from t1 where value <=> value;
+select * from t1 where id <=> value or value<=>id;
+drop table t1,t2;

sql/item_cmpfunc.cc

@@ -170,15 +170,44 @@ longlong Item_func_eq::val_int()
 
 /* Same as Item_func_eq, but NULL = NULL */
 
+void Item_func_equal::fix_length_and_dec()
+{
+  Item_bool_func2::fix_length_and_dec();
+  result_type=item_cmp_type(args[0]->result_type(),args[1]->result_type());
+  maybe_null=null_value=0;
+}
+
 longlong Item_func_equal::val_int()
 {
-  int value=(this->*cmp_func)();
-  if (null_value)
+  switch (result_type) {
+  case STRING_RESULT:
   {
-    null_value=0;
-    return (args[0]->null_value && args[1]->null_value) ? 1 : 0;
+    String *res1,*res2;
+    res1=args[0]->val_str(&tmp_value1);
+    res2=args[1]->val_str(&tmp_value2);
+    if (!res1 || !res2)
+      return test(res1 == res2);
+    return (binary ? test(stringcmp(res1,res2) == 0) :
+	    test(sortcmp(res1,res2) == 0));
+  }
+  case REAL_RESULT:
+  {
+    double val1=args[0]->val();
+    double val2=args[1]->val();
+    if (args[0]->null_value || args[1]->null_value)
+      return test(args[0]->null_value && args[1]->null_value);
+    return test(val1 == val2);
+  }
+  case INT_RESULT:
+  {
+    longlong val1=args[0]->val_int();
+    longlong val2=args[1]->val_int();
+    if (args[0]->null_value || args[1]->null_value)
+      return test(args[0]->null_value && args[1]->null_value);
+    return test(val1 == val2);
+  }
   }
-  return value == 0;
+  return 0;					// Impossible
 }
 
 

sql/item_cmpfunc.h

@@ -70,11 +70,11 @@ public:
 
 class Item_func_equal :public Item_bool_func2
 {
+  Item_result result_type;
 public:
   Item_func_equal(Item *a,Item *b) :Item_bool_func2(a,b) { };
   longlong val_int();
-  void fix_length_and_dec()
-  { Item_bool_func2::fix_length_and_dec() ; maybe_null=0; }
+  void fix_length_and_dec();
   enum Functype functype() const { return EQUAL_FUNC; }
   enum Functype rev_functype() const { return EQUAL_FUNC; }
   cond_result eq_cmp_result() const { return COND_TRUE; }