automerge

configure.in

@@ -10,7 +10,7 @@ AC_CANONICAL_SYSTEM
 #
 # When changing major version number please also check switch statement
 # in mysqlbinlog::check_master_version().
-AM_INIT_AUTOMAKE(mysql, 5.1.41)
+AM_INIT_AUTOMAKE(mysql, 5.1.42)
 AM_CONFIG_HEADER([include/config.h:config.h.in])
 
 # Request support for automake silent-rules if available.

include/violite.h

@@ -224,8 +224,8 @@ struct st_vio
 #endif /* HAVE_SMEM */
 #ifdef _WIN32
   OVERLAPPED pipe_overlapped;
-  DWORD read_timeout_millis;
-  DWORD write_timeout_millis;
+  DWORD read_timeout_ms;
+  DWORD write_timeout_ms;
 #endif
 };
 #endif /* vio_violite_h_ */

mysql-test/r/range.result

@@ -1603,4 +1603,21 @@ SELECT str_to_date('', '%Y-%m-%d');
 str_to_date('', '%Y-%m-%d')
 0000-00-00
 DROP TABLE t1, t2;
+#
+# Bug #48665: sql-bench's insert test fails due to wrong result
+#
+CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a));
+INSERT INTO t1 VALUES (0,0), (1,1);
+EXPLAIN 
+SELECT * FROM t1 FORCE INDEX (PRIMARY) 
+WHERE (a>=1 AND a<=2) OR (a>=4 AND a<=5) OR (a>=0 AND a <=10);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+@	@	@	range	@	@	@	@	@	@
+# Should return 2 rows
+SELECT * FROM t1 FORCE INDEX (PRIMARY) 
+WHERE (a>=1 AND a<=2) OR (a>=4 AND a<=5) OR (a>=0 AND a <=10);
+a	b
+0	0
+1	1
+DROP TABLE t1;
 End of 5.1 tests

mysql-test/t/range.test

@@ -1260,4 +1260,25 @@ SELECT str_to_date('', '%Y-%m-%d');
 
 DROP TABLE t1, t2;
 
+
+--echo #
+--echo # Bug #48665: sql-bench's insert test fails due to wrong result
+--echo #
+
+CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a));
+
+INSERT INTO t1 VALUES (0,0), (1,1);
+
+--replace_column 1 @ 2 @ 3 @ 5 @ 6 @ 7 @ 8 @ 9 @ 10 @
+EXPLAIN 
+SELECT * FROM t1 FORCE INDEX (PRIMARY) 
+ WHERE (a>=1 AND a<=2) OR (a>=4 AND a<=5) OR (a>=0 AND a <=10);
+
+--echo # Should return 2 rows
+SELECT * FROM t1 FORCE INDEX (PRIMARY) 
+ WHERE (a>=1 AND a<=2) OR (a>=4 AND a<=5) OR (a>=0 AND a <=10);
+
+DROP TABLE t1;
+
+
 --echo End of 5.1 tests

mysys/typelib.c

@@ -184,7 +184,7 @@ my_ulonglong find_typeset(char *x, TYPELIB *lib, int *err)
     i= x;
     while (*x && *x != field_separator)
       x++;
-    if (x[0] && x[1])                            // skip separator if found
+    if (x[0] && x[1])                            /* skip separator if found */
       x++;
     if ((find= find_type(i, lib, 2 | 8) - 1) < 0)
       DBUG_RETURN(0);

sql/mysqld.cc

@@ -5224,12 +5224,16 @@ pthread_handler_t handle_connections_sockets(void *arg __attribute__((unused)))
 pthread_handler_t handle_connections_namedpipes(void *arg)
 {
   HANDLE hConnectedPipe;
-  OVERLAPPED connectOverlapped = {0};
+  OVERLAPPED connectOverlapped= {0};
   THD *thd;
   my_thread_init();
   DBUG_ENTER("handle_connections_namedpipes");
-  connectOverlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
-
+  connectOverlapped.hEvent= CreateEvent(NULL, TRUE, FALSE, NULL);
+  if (!connectOverlapped.hEvent)
+  {
+    sql_print_error("Can't create event, last error=%u", GetLastError());
+    unireg_abort(1);
+  }
   DBUG_PRINT("general",("Waiting for named pipe connections."));
   while (!abort_loop)
   {
@@ -5252,7 +5256,8 @@ pthread_handler_t handle_connections_namedpipes(void *arg)
     {
       CloseHandle(hPipe);
       if ((hPipe= CreateNamedPipe(pipe_name,
-                                  PIPE_ACCESS_DUPLEX|FILE_FLAG_OVERLAPPED,
+                                  PIPE_ACCESS_DUPLEX |
+                                  FILE_FLAG_OVERLAPPED,
                                   PIPE_TYPE_BYTE |
                                   PIPE_READMODE_BYTE |
                                   PIPE_WAIT,
@@ -5272,7 +5277,8 @@ pthread_handler_t handle_connections_namedpipes(void *arg)
     hConnectedPipe = hPipe;
     /* create new pipe for new connection */
     if ((hPipe = CreateNamedPipe(pipe_name,
-				 PIPE_ACCESS_DUPLEX|FILE_FLAG_OVERLAPPED,
+                 PIPE_ACCESS_DUPLEX |
+                 FILE_FLAG_OVERLAPPED,
 				 PIPE_TYPE_BYTE |
 				 PIPE_READMODE_BYTE |
 				 PIPE_WAIT,

sql/opt_range.cc

@@ -6671,6 +6671,7 @@ key_or(RANGE_OPT_PARAM *param, SEL_ARG *key1,SEL_ARG *key2)
     else if ((cmp=tmp->cmp_max_to_min(key2)) < 0)
     {						// Found tmp.max < key2.min
       SEL_ARG *next=tmp->next;
+      /* key1 on the left of key2 non-overlapping */
       if (cmp == -2 && eq_tree(tmp->next_key_part,key2->next_key_part))
       {
 	// Join near ranges like tmp.max < 0 and key2.min >= 0
@@ -6699,6 +6700,7 @@ key_or(RANGE_OPT_PARAM *param, SEL_ARG *key1,SEL_ARG *key2)
       int tmp_cmp;
       if ((tmp_cmp=tmp->cmp_min_to_max(key2)) > 0) // if tmp.min > key2.max
       {
+        /* tmp is on the right of key2 non-overlapping */
 	if (tmp_cmp == 2 && eq_tree(tmp->next_key_part,key2->next_key_part))
 	{					// ranges are connected
 	  tmp->copy_min_to_min(key2);
@@ -6733,25 +6735,52 @@ key_or(RANGE_OPT_PARAM *param, SEL_ARG *key1,SEL_ARG *key2)
       }
     }
 
-    // tmp.max >= key2.min && tmp.min <= key.max  (overlapping ranges)
+    /* 
+      tmp.min >= key2.min && tmp.min <= key.max  (overlapping ranges)
+      key2.min <= tmp.min <= key2.max 
+    */  
     if (eq_tree(tmp->next_key_part,key2->next_key_part))
     {
       if (tmp->is_same(key2))
       {
+        /* 
+          Found exact match of key2 inside key1. 
+          Use the relevant range in key1.
+        */
 	tmp->merge_flags(key2);			// Copy maybe flags
 	key2->increment_use_count(-1);		// Free not used tree
       }
       else
       {
 	SEL_ARG *last=tmp;
+        SEL_ARG *first=tmp;
+        /* 
+          Find the last range in tmp that overlaps key2 and has the same 
+          condition on the rest of the keyparts.
+        */
 	while (last->next && last->next->cmp_min_to_max(key2) <= 0 &&
 	       eq_tree(last->next->next_key_part,key2->next_key_part))
 	{
+          /*
+            We've found the last overlapping key1 range in last.
+            This means that the ranges between (and including) the 
+            first overlapping range (tmp) and the last overlapping range
+            (last) are fully nested into the current range of key2 
+            and can safely be discarded. We just need the minimum endpoint
+            of the first overlapping range (tmp) so we can compare it with
+            the minimum endpoint of the enclosing key2 range.
+          */
 	  SEL_ARG *save=last;
 	  last=last->next;
 	  key1=key1->tree_delete(save);
 	}
-        last->copy_min(tmp);
+        /*
+          The tmp range (the first overlapping range) could have been discarded
+          by the previous loop. We should re-direct tmp to the new united range 
+          that's taking its place.
+        */
+        tmp= last;
+        last->copy_min(first);
         bool full_range= last->copy_min(key2);
         if (!full_range)
         {

vio/vio.c

@@ -62,10 +62,8 @@ static void vio_init(Vio* vio, enum enum_vio_type type,
 
     vio->timeout=vio_win32_timeout;
     /* Set default timeout */
-    vio->read_timeout_millis = INFINITE;
-    vio->write_timeout_millis = INFINITE;
-
-    memset(&(vio->pipe_overlapped), 0, sizeof(OVERLAPPED));
+    vio->read_timeout_ms= INFINITE;
+    vio->write_timeout_ms= INFINITE;
     vio->pipe_overlapped.hEvent= CreateEvent(NULL, TRUE, FALSE, NULL);
     DBUG_VOID_RETURN;
   }
@@ -90,8 +88,8 @@ static void vio_init(Vio* vio, enum enum_vio_type type,
     /* Currently, shared memory is on Windows only, hence the below is ok*/
     vio->timeout= vio_win32_timeout; 
     /* Set default timeout */
-    vio->read_timeout_millis= INFINITE;
-    vio->write_timeout_millis= INFINITE;
+    vio->read_timeout_ms= INFINITE;
+    vio->write_timeout_ms= INFINITE;
     DBUG_VOID_RETURN;
   }
 #endif   
@@ -115,7 +113,6 @@ static void vio_init(Vio* vio, enum enum_vio_type type,
     DBUG_VOID_RETURN;
   }
 #endif /* HAVE_OPENSSL */
-  {
   vio->viodelete	=vio_delete;
   vio->vioerrno	=vio_errno;
   vio->read= (flags & VIO_BUFFERED_READ) ? vio_read_buff : vio_read;
@@ -130,7 +127,6 @@ static void vio_init(Vio* vio, enum enum_vio_type type,
   vio->vioblocking	=vio_blocking;
   vio->is_blocking	=vio_is_blocking;
   vio->timeout	=vio_timeout;
-  }
   DBUG_VOID_RETURN;
 }
 

vio/viosocket.c

@@ -415,14 +415,14 @@ void vio_timeout(Vio *vio, uint which, uint timeout)
 /*
   Finish pending IO on pipe. Honor wait timeout
 */
-static int pipe_complete_io(Vio* vio, char* buf, size_t size, DWORD timeout_millis)
+static size_t pipe_complete_io(Vio* vio, char* buf, size_t size, DWORD timeout_ms)
 {
   DWORD length;
   DWORD ret;
 
   DBUG_ENTER("pipe_complete_io");
 
-  ret= WaitForSingleObject(vio->pipe_overlapped.hEvent, timeout_millis);
+  ret= WaitForSingleObject(vio->pipe_overlapped.hEvent, timeout_ms);
   /*
     WaitForSingleObjects will normally return WAIT_OBJECT_O (success, IO completed)
     or WAIT_TIMEOUT.
@@ -431,14 +431,14 @@ static int pipe_complete_io(Vio* vio, char* buf, size_t size, DWORD timeout_mill
   {
     CancelIo(vio->hPipe);
     DBUG_PRINT("error",("WaitForSingleObject() returned  %d", ret));
-    DBUG_RETURN(-1);
+    DBUG_RETURN((size_t)-1);
   }
 
   if (!GetOverlappedResult(vio->hPipe,&(vio->pipe_overlapped),&length, FALSE))
   {
     DBUG_PRINT("error",("GetOverlappedResult() returned last error  %d", 
       GetLastError()));
-    DBUG_RETURN(-1);
+    DBUG_RETURN((size_t)-1);
   }
 
   DBUG_RETURN(length);
@@ -448,12 +448,17 @@ static int pipe_complete_io(Vio* vio, char* buf, size_t size, DWORD timeout_mill
 size_t vio_read_pipe(Vio * vio, uchar *buf, size_t size)
 {
   DWORD bytes_read;
+  size_t retval;
   DBUG_ENTER("vio_read_pipe");
   DBUG_PRINT("enter", ("sd: %d  buf: 0x%lx  size: %u", vio->sd, (long) buf,
                        (uint) size));
 
-  if (!ReadFile(vio->hPipe, buf, (DWORD)size, &bytes_read,
+  if (ReadFile(vio->hPipe, buf, (DWORD)size, &bytes_read,
       &(vio->pipe_overlapped)))
+  {
+    retval= bytes_read;
+  }
+  else
   {
     if (GetLastError() != ERROR_IO_PENDING)
     {
@@ -461,23 +466,28 @@ size_t vio_read_pipe(Vio * vio, uchar *buf, size_t size)
         GetLastError()));
       DBUG_RETURN((size_t)-1);
     }
-    bytes_read= pipe_complete_io(vio, buf, size,vio->read_timeout_millis);
+    retval= pipe_complete_io(vio, buf, size,vio->read_timeout_ms);
   }
 
-  DBUG_PRINT("exit", ("%d", bytes_read));
-  DBUG_RETURN(bytes_read);
+  DBUG_PRINT("exit", ("%lld", (longlong)retval));
+  DBUG_RETURN(retval);
 }
 
 
 size_t vio_write_pipe(Vio * vio, const uchar* buf, size_t size)
 {
   DWORD bytes_written;
+  size_t retval;
   DBUG_ENTER("vio_write_pipe");
   DBUG_PRINT("enter", ("sd: %d  buf: 0x%lx  size: %u", vio->sd, (long) buf,
                        (uint) size));
 
-  if (!WriteFile(vio->hPipe, buf, (DWORD)size, &bytes_written,
+  if (WriteFile(vio->hPipe, buf, (DWORD)size, &bytes_written, 
       &(vio->pipe_overlapped)))
+  {
+    retval= bytes_written;
+  }
+  else
   {
     if (GetLastError() != ERROR_IO_PENDING)
     {
@@ -485,12 +495,11 @@ size_t vio_write_pipe(Vio * vio, const uchar* buf, size_t size)
         GetLastError()));
       DBUG_RETURN((size_t)-1);
     }
-    bytes_written = pipe_complete_io(vio, (char *)buf, size, 
-        vio->write_timeout_millis);
+    retval= pipe_complete_io(vio, (char *)buf, size, vio->write_timeout_ms);
   }
 
-  DBUG_PRINT("exit", ("%d", bytes_written));
-  DBUG_RETURN(bytes_written);
+  DBUG_PRINT("exit", ("%lld", (longlong)retval));
+  DBUG_RETURN(retval);
 }
 
 
@@ -515,21 +524,21 @@ int vio_close_pipe(Vio * vio)
 
 void vio_win32_timeout(Vio *vio, uint which , uint timeout_sec)
 {
-    DWORD timeout_millis;
+    DWORD timeout_ms;
     /*
       Windows is measuring timeouts in milliseconds. Check for possible int 
       overflow.
     */
     if (timeout_sec > UINT_MAX/1000)
-      timeout_millis= INFINITE;
+      timeout_ms= INFINITE;
     else
-      timeout_millis= timeout_sec * 1000;
+      timeout_ms= timeout_sec * 1000;
 
     /* which == 1 means "write", which == 0 means "read".*/
     if(which)
-      vio->write_timeout_millis= timeout_millis;
+      vio->write_timeout_ms= timeout_ms;
     else
-      vio->read_timeout_millis= timeout_millis;
+      vio->read_timeout_ms= timeout_ms;
 }
 
 
@@ -564,7 +573,7 @@ size_t vio_read_shared_memory(Vio * vio, uchar* buf, size_t size)
          WAIT_ABANDONED_0 and WAIT_TIMEOUT - fail.  We can't read anything
       */
       if (WaitForMultipleObjects(array_elements(events), events, FALSE,
-                                 vio->read_timeout_millis) != WAIT_OBJECT_0)
+                                 vio->read_timeout_ms) != WAIT_OBJECT_0)
       {
         DBUG_RETURN(-1);
       };
@@ -621,7 +630,7 @@ size_t vio_write_shared_memory(Vio * vio, const uchar* buf, size_t size)
   while (remain != 0)
   {
     if (WaitForMultipleObjects(array_elements(events), events, FALSE,
-                               vio->write_timeout_millis) != WAIT_OBJECT_0)
+                               vio->write_timeout_ms) != WAIT_OBJECT_0)
     {
       DBUG_RETURN((size_t) -1);
     }