Merge bk-internal.mysql.com:/home/bk/mysql-5.0

into  production.mysql.com:/usersnfs/tulin/mysql-5.0

client/mysqlbinlog.cc

@@ -788,7 +788,8 @@ static void die(const char* fmt, ...)
   fprintf(stderr, "\n");
   va_end(args);
   cleanup();
-  my_end(0);
+  /* We cannot free DBUG, it is used in global destructors after exit(). */
+  my_end(MY_DONT_FREE_DBUG);
   exit(1);
 }
 
@@ -1460,7 +1461,8 @@ int main(int argc, char** argv)
   cleanup();
   free_defaults(defaults_argv);
   my_free_open_file_info();
-  my_end(0);
+  /* We cannot free DBUG, it is used in global destructors after exit(). */
+  my_end(MY_DONT_FREE_DBUG);
   exit(exit_value);
   DBUG_RETURN(exit_value);			// Keep compilers happy
 }

dbug/dbug.c

@@ -271,6 +271,8 @@ static unsigned long Clock (void);
 static void CloseFile(FILE *fp);
 	/* Push current debug state */
 static void PushState(void);
+	/* Free memory associated with debug state. */
+static void FreeState (struct state *state);
 	/* Test for tracing enabled */
 static BOOLEAN DoTrace(CODE_STATE *state);
 	/* Test to see if file is writable */
@@ -630,22 +632,7 @@ void _db_pop_ ()
     stack = discard -> next_state;
     _db_fp_ = stack -> out_file;
     _db_pfp_ = stack -> prof_file;
-    if (discard -> keywords != NULL) {
-      FreeList (discard -> keywords);
-    }
-    if (discard -> functions != NULL) {
-      FreeList (discard -> functions);
-    }
-    if (discard -> processes != NULL) {
-      FreeList (discard -> processes);
-    }
-    if (discard -> p_functions != NULL) {
-      FreeList (discard -> p_functions);
-    }
-    CloseFile (discard -> out_file);
-    if (discard -> prof_file)
-      CloseFile (discard -> prof_file);
-    free ((char *) discard);
+    FreeState(discard);
     if (!(stack->flags & DEBUG_ON))
       _db_on_=0;
   }
@@ -1160,6 +1147,71 @@ static void PushState ()
   stack=new_malloc;
 }
 
+/*
+ *  FUNCTION
+ *
+ *	FreeState    Free memory associated with a struct state.
+ *
+ *  SYNOPSIS
+ *
+ *	static void FreeState (state)
+ *	struct state *state;
+ *
+ *  DESCRIPTION
+ *
+ *	Deallocates the memory allocated for various information in a
+ *	state.
+ *
+ */
+static void FreeState (
+struct state *state)
+{
+  if (state -> keywords != NULL) {
+    FreeList (state -> keywords);
+  }
+  if (state -> functions != NULL) {
+    FreeList (state -> functions);
+  }
+  if (state -> processes != NULL) {
+    FreeList (state -> processes);
+  }
+  if (state -> p_functions != NULL) {
+    FreeList (state -> p_functions);
+  }
+  CloseFile (state -> out_file);
+  if (state -> prof_file)
+    CloseFile (state -> prof_file);
+  free ((char *) state);
+}
+
+
+/*
+ *  FUNCTION
+ *
+ *	_db_end_    End debugging, freeing state stack memory.
+ *
+ *  SYNOPSIS
+ *
+ *	static VOID _db_end_ ()
+ *
+ *  DESCRIPTION
+ *
+ *	Ends debugging, de-allocating the memory allocated to the
+ *	state stack.
+ *
+ *	To be called at the very end of the program.
+ *
+ */
+void _db_end_ ()
+{
+  reg1 struct state *discard;
+  while((discard= stack) != NULL) {
+    stack= discard -> next_state;
+    FreeState (discard);
+  }
+  _db_on_=0;
+}
+
 
 /*
  *  FUNCTION

include/my_dbug.h

@@ -40,6 +40,7 @@ extern	void _db_doprnt_ _VARARGS((const char *format,...));
 extern	void _db_dump_(uint _line_,const char *keyword,const char *memory,
 		       uint length);
 extern	void _db_output_(uint flag);
+extern	void _db_end_(void);
 extern	void _db_lock_file(void);
 extern	void _db_unlock_file(void);
 
@@ -66,6 +67,7 @@ extern	void _db_unlock_file(void);
 #define DBUG_IN_USE (_db_fp_ && _db_fp_ != stderr)
 #define DEBUGGER_OFF _no_db_=1;_db_on_=0;
 #define DEBUGGER_ON  _no_db_=0
+#define DBUG_END()  _db_end_ ()
 #define DBUG_LOCK_FILE { _db_lock_file(); }
 #define DBUG_UNLOCK_FILE { _db_unlock_file(); }
 #define DBUG_OUTPUT(A) { _db_output_(A); }
@@ -90,6 +92,7 @@ extern	void _db_unlock_file(void);
 #define DBUG_IN_USE 0
 #define DEBUGGER_OFF
 #define DEBUGGER_ON
+#define DBUG_END()
 #define DBUG_LOCK_FILE
 #define DBUG_UNLOCK_FILE
 #define DBUG_OUTPUT(A)

include/my_sys.h

@@ -75,6 +75,7 @@ extern int NEAR my_errno;		/* Last error in mysys */
 
 #define MY_CHECK_ERROR	1	/* Params to my_end; Check open-close */
 #define MY_GIVE_INFO	2	/* Give time info about process*/
+#define MY_DONT_FREE_DBUG 4     /* Do not call DBUG_END() in my_end() */
 
 #define ME_HIGHBYTE	8	/* Shift for colours */
 #define ME_NOCUR	1	/* Don't use curses message */

libmysql/libmysql.c

@@ -178,7 +178,7 @@ void STDCALL mysql_server_end()
   /* If library called my_init(), free memory allocated by it */
   if (!org_my_init_done)
   {
-    my_end(0);
+    my_end(MY_DONT_FREE_DBUG);
 #ifndef THREAD
   /* Remove TRACING, if enabled by mysql_debug() */
     DBUG_POP();

mysql-test/r/func_in.result

@@ -326,3 +326,20 @@ deallocate prepare s;
 set @str=NULL;
 drop table t2;
 drop table t1;
+create table t1 (
+some_id smallint(5) unsigned,
+key (some_id)
+);
+insert into t1 values (1),(2);
+select some_id from t1 where some_id not in(2,-1);
+some_id
+1
+select some_id from t1 where some_id not in(-4,-1,-4);
+some_id
+1
+2
+select some_id from t1 where some_id not in(-4,-1,3423534,2342342);
+some_id
+1
+2
+drop table t1;

mysql-test/t/func_in.test

@@ -220,3 +220,15 @@ set @str=NULL;
 drop table t2;
 drop table t1;
 
+# BUG#19618: Crash in range optimizer for 
+#   "unsigned_keypart NOT IN(negative_number,...)" 
+#   (introduced in fix BUG#15872) 
+create table t1 (
+  some_id smallint(5) unsigned,
+  key (some_id)
+);
+insert into t1 values (1),(2);
+select some_id from t1 where some_id not in(2,-1);
+select some_id from t1 where some_id not in(-4,-1,-4);
+select some_id from t1 where some_id not in(-4,-1,3423534,2342342);
+drop table t1;

mysql-test/t/rpl_temporary.test

@@ -192,7 +192,7 @@ drop table t1;
 #
 #14157: utf8 encoding in binlog without set character_set_client
 #
---exec $MYSQL --character-sets-dir=../sql/share/charsets/ --default-character-set=koi8r test -e 'create table t1 (a int); set names koi8r; create temporary table `ÑÝÉË` (a int); insert into `ÑÝÉË` values (1); insert into t1 select * from `ÑÝÉË`'
+--exec $MYSQL --character-sets-dir=../sql/share/charsets/ --default-character-set=latin1 test -e 'create table t1 (a int); set names latin1; create temporary table `äöüÄÖÜ` (a int); insert into `äöüÄÖÜ` values (1); insert into t1 select * from `äöüÄÖÜ`'
 
 sync_slave_with_master;
 #connection slave;

mysql-test/valgrind.supp

@@ -11,7 +11,7 @@
    fun:calloc
    fun:_dl_allocate_tls
    fun:allocate_stack
-   fun:pthread_create@@GLIBC_2.1
+   fun:pthread_create*
 }
 
 {
@@ -33,15 +33,6 @@
    fun:pthread_create*
 }
 
-{
-   pthread allocate_dtv memory loss second
-   Memcheck:Leak
-   fun:calloc
-   fun:allocate_dtv
-   fun:_dl_allocate_tls
-   fun:pthread_create*
-}
-
 {
    pthread memalign memory loss
    Memcheck:Leak
@@ -72,17 +63,6 @@
    obj:/lib/ld-*.so
 }
 
-{
-   pthread strstr uninit
-   Memcheck:Cond
-   fun:strstr
-   obj:/lib/tls/libpthread.so.*
-   obj:/lib/tls/libpthread.so.*
-   fun:call_init
-   fun:_dl_init
-   obj:/lib/ld-*.so
-}
-
 {
    pthread errno
    Memcheck:Leak
@@ -152,3 +132,163 @@
    obj:*/libz.so.*
    fun:gzflush
 }
+
+#
+# Leaks reported in _dl_* internal functions on Linux amd64 / glibc2.3.2.
+#
+
+{
+   _dl_start invalid write8
+   Memcheck:Addr8
+   fun:_dl_start
+}
+
+{
+   _dl_start invalid write4
+   Memcheck:Addr4
+   fun:_dl_start
+}
+
+{
+   _dl_start/_dl_setup_hash invalid read8
+   Memcheck:Addr8
+   fun:_dl_setup_hash
+   fun:_dl_start
+}
+
+{
+   _dl_sysdep_start invalid write8
+   Memcheck:Addr8
+   fun:_dl_sysdep_start
+}
+
+{
+   _dl_init invalid write8
+   Memcheck:Addr8
+   fun:_dl_init
+}
+
+{
+   _dl_init invalid write4
+   Memcheck:Addr4
+   fun:_dl_init
+}
+
+{
+   _dl_init/_dl_init invalid read8
+   Memcheck:Addr8
+   fun:_dl_debug_initialize
+   fun:_dl_init
+}
+
+{
+   _dl_init/_dl_debug_state invalid read8
+   Memcheck:Addr8
+   fun:_dl_debug_state
+   fun:_dl_init
+}
+
+{
+   init invalid write8
+   Memcheck:Addr8
+   fun:init
+}
+
+{
+   fixup invalid write8
+   Memcheck:Addr8
+   fun:fixup
+}
+
+{
+   fixup/_dl_lookup_versioned_symbol invalid read8
+   Memcheck:Addr8
+   fun:_dl_lookup_versioned_symbol
+   fun:fixup
+}
+
+{
+   _dl_runtime_resolve invalid read8
+   Memcheck:Addr8
+   fun:_dl_runtime_resolve
+}
+
+{
+   __libc_start_main invalid write8
+   Memcheck:Addr8
+   fun:__libc_start_main
+}
+
+{
+   __libc_start_main/__sigjmp_save invalid write4
+   Memcheck:Addr4
+   fun:__sigjmp_save
+   fun:__libc_start_main
+}
+
+#
+# These seem to be libc threading stuff, not related to MySQL code (allocations
+# during pthread_exit()). Googling shows other projects also using these
+# suppressions.
+#
+# Note that these all stem from pthread_exit() deeper in the call stack, but
+# Valgrind only allows the top four calls in the suppressions.
+#
+
+{
+   libc pthread_exit 1
+   Memcheck:Leak
+   fun:malloc
+   fun:_dl_new_object
+   fun:_dl_map_object_from_fd
+   fun:_dl_map_object
+}
+
+{
+   libc pthread_exit 2
+   Memcheck:Leak
+   fun:malloc
+   fun:_dl_map_object
+   fun:dl_open_worker
+   fun:_dl_catch_error
+}
+
+{
+   libc pthread_exit 3
+   Memcheck:Leak
+   fun:malloc
+   fun:_dl_map_object_deps
+   fun:dl_open_worker
+   fun:_dl_catch_error
+}
+
+{
+   libc pthread_exit 4
+   Memcheck:Leak
+   fun:calloc
+   fun:_dl_check_map_versions
+   fun:dl_open_worker
+   fun:_dl_catch_error
+}
+
+{
+   libc pthread_exit 5
+   Memcheck:Leak
+   fun:calloc
+   fun:_dl_new_object
+   fun:_dl_map_object_from_fd
+   fun:_dl_map_object
+}
+
+
+
+#
+# This is seen internally in the system libraries on 64-bit RHAS3.
+#
+
+{
+   __lll_mutex_unlock_wake uninitialized
+   Memcheck:Param
+   futex(utime)
+   fun:__lll_mutex_unlock_wake
+}

mysys/my_init.c

@@ -196,8 +196,10 @@ Voluntary context switches %ld, Involuntary context switches %ld\n",
    _CrtDumpMemoryLeaks();
 #endif
   }
+
+  if (!(infoflag & MY_DONT_FREE_DBUG))
+    DBUG_END();                /* Must be done before my_thread_end */
 #ifdef THREAD
-  DBUG_POP();				/* Must be done before my_thread_end */
   my_thread_end();
   my_thread_global_end();
 #if defined(SAFE_MUTEX)

ndb/src/kernel/blocks/dbtup/DbtupExecQuery.cpp

@@ -1496,6 +1496,7 @@ int Dbtup::interpreterNextLab(Signal* signal,
 	    // word read. Thus we set the register to be a 32 bit register.
 	    /* ------------------------------------------------------------- */
 	    TregMemBuffer[theRegister] = 0x50;
+            // arithmetic conversion if big-endian
             * (Int64*)(TregMemBuffer+theRegister+2) = TregMemBuffer[theRegister+1];
 	  } else if (TnoDataRW == 3) {
 	    /* ------------------------------------------------------------- */
@@ -1554,6 +1555,11 @@ int Dbtup::interpreterNextLab(Signal* signal,
 	  Tlen = TattrNoOfWords + 1;
 	  if (Toptype == ZUPDATE) {
 	    if (TattrNoOfWords <= 2) {
+              if (TattrNoOfWords == 1) {
+                // arithmetic conversion if big-endian
+                TdataForUpdate[1] = *(Int64*)&TregMemBuffer[theRegister + 2];
+                TdataForUpdate[2] = 0;
+              }
 	      if (TregType == 0) {
 		/* --------------------------------------------------------- */
 		// Write a NULL value into the attribute

ndb/test/ndbapi/Makefile.am

@@ -24,6 +24,7 @@ testOIBasic \
 testOperations \
 testRestartGci \
 testScan \
+testInterpreter \
 testScanInterpreter \
 testScanPerf \
 testSystemRestart \
@@ -65,6 +66,7 @@ testOIBasic_SOURCES = testOIBasic.cpp
 testOperations_SOURCES = testOperations.cpp
 testRestartGci_SOURCES = testRestartGci.cpp
 testScan_SOURCES = testScan.cpp ScanFunctions.hpp
+testInterpreter_SOURCES = testInterpreter.cpp
 testScanInterpreter_SOURCES = testScanInterpreter.cpp ScanFilter.hpp ScanInterpretTest.hpp 
 testScanPerf_SOURCES = testScanPerf.cpp
 testSystemRestart_SOURCES = testSystemRestart.cpp

ndb/test/ndbapi/testInterpreter.cpp

@@ -142,6 +142,122 @@ int runTestIncValue32(NDBT_Context* ctx, NDBT_Step* step){
   return NDBT_OK;
 }
 
+int runTestBug19537(NDBT_Context* ctx, NDBT_Step* step){
+  int result = NDBT_OK;
+  const NdbDictionary::Table * pTab = ctx->getTab();
+  Ndb* pNdb = GETNDB(step);
+
+  if (strcmp(pTab->getName(), "T1") != 0) {
+    g_err << "runTestBug19537: skip, table != T1" << endl;
+    return NDBT_OK;
+  }
+
+
+  NdbConnection* pTrans = pNdb->startTransaction();
+  if (pTrans == NULL){
+    ERR(pNdb->getNdbError());
+    return NDBT_FAILED;
+  }
+  
+  NdbOperation* pOp = pTrans->getNdbOperation(pTab->getName());
+  if (pOp == NULL) {
+    ERR(pTrans->getNdbError());
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+  
+  if (pOp->interpretedUpdateTuple() == -1) {
+    ERR(pOp->getNdbError());
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+  
+  
+  // Primary keys
+  const Uint32 pkVal = 1;
+  if (pOp->equal("KOL1", pkVal) == -1) {
+    ERR(pTrans->getNdbError());
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+  
+  // Load 64-bit constant into register 1 and
+  // write from register 1 to 32-bit column KOL2
+  const Uint64 reg_val = 0x0102030405060708ULL;
+
+  const Uint32* reg_ptr32 = (const Uint32*)&reg_val;
+  if (reg_ptr32[0] == 0x05060708 && reg_ptr32[1] == 0x01020304) {
+    g_err << "runTestBug19537: platform is LITTLE endian" << endl;
+  } else if (reg_ptr32[0] == 0x01020304 && reg_ptr32[1] == 0x05060708) {
+    g_err << "runTestBug19537: platform is BIG endian" << endl;
+  } else {
+    g_err << "runTestBug19537: impossible platform"
+          << hex << " [0]=" << reg_ptr32[0] << " [1]=" <<reg_ptr32[1] << endl;
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+
+  if (pOp->load_const_u64(1, reg_val) == -1 ||
+      pOp->write_attr("KOL2", 1) == -1) {
+    ERR(pOp->getNdbError());
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+
+  if (pTrans->execute(Commit) == -1) {
+    ERR(pTrans->getNdbError());
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+
+  // Read value via a new transaction
+
+  pTrans = pNdb->startTransaction();
+  if (pTrans == NULL){
+    ERR(pNdb->getNdbError());
+    return NDBT_FAILED;
+  }
+  
+  pOp = pTrans->getNdbOperation(pTab->getName());
+  if (pOp == NULL) {
+    ERR(pTrans->getNdbError());
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+  
+  Uint32 kol2 = 0x09090909;
+  if (pOp->readTuple() == -1 ||
+      pOp->equal("KOL1", pkVal) == -1 ||
+      pOp->getValue("KOL2", (char*)&kol2) == 0) {
+    ERR(pOp->getNdbError());
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+
+  if (pTrans->execute(Commit) == -1) {
+    ERR(pTrans->getNdbError());
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+
+  // Expected conversion as in C - truncate to lower (logical) word
+
+  if (kol2 == 0x01020304) {
+    g_err << "runTestBug19537: the bug manifests itself !" << endl;
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+
+  if (kol2 != 0x05060708) {
+    g_err << "runTestBug19537: impossible KOL2 " << hex << kol2 << endl;
+    pNdb->closeTransaction(pTrans);
+    return NDBT_FAILED;
+  }
+
+  pNdb->closeTransaction(pTrans);
+  return NDBT_OK;
+}
+
 
 NDBT_TESTSUITE(testInterpreter);
 TESTCASE("IncValue32", 
@@ -156,6 +272,12 @@ TESTCASE("IncValue64",
   INITIALIZER(runTestIncValue64);
   FINALIZER(runClearTable);
 }
+TESTCASE("Bug19537",
+         "Test big-endian write_attr of 32 bit integer\n"){
+  INITIALIZER(runLoadTable);
+  INITIALIZER(runTestBug19537);
+  FINALIZER(runClearTable);
+}
 #if 0
 TESTCASE("MaxTransactions", 
 	 "Start transactions until no more can be created\n"){ 

sql/item.cc

@@ -5365,7 +5365,7 @@ bool Item_trigger_field::eq(const Item *item, bool binary_cmp) const
 }
 
 
-void Item_trigger_field::set_required_privilege(const bool rw)
+void Item_trigger_field::set_required_privilege(bool rw)
 {
   /*
     Require SELECT and UPDATE privilege if this field will be read and

sql/item.h

@@ -2187,7 +2187,7 @@ class Item_trigger_field : public Item_field,
   void cleanup();
 
 private:
-  void set_required_privilege(const bool rw);
+  void set_required_privilege(bool rw);
   bool set_value(THD *thd, sp_rcontext *ctx, Item **it);
 
 public:

sql/mysqld.cc

@@ -986,6 +986,10 @@ static void __cdecl kill_server(int sig_ptr)
     pthread_join(select_thread, NULL);		// wait for main thread
 #endif /* __NETWARE__ */
 
+#if defined(__NETWARE__) || (defined(USE_ONE_SIGNAL_HAND) && !defined(__WIN__) && !defined(OS2))
+  my_thread_end();
+#endif
+
   pthread_exit(0);				/* purecov: deadcode */
 
 #endif /* EMBEDDED_LIBRARY */

sql/opt_range.cc

@@ -3503,17 +3503,46 @@ static SEL_TREE *get_func_mm_tree(PARAM *param, Item_func *cond_func,
 
     if (inv)
     {
-      /*
-        We get here for conditions like "t.keypart NOT IN (....)".
-        
-        If the IN-list contains only constants (and func->array is an ordered
-        array of them), we construct the appropriate SEL_ARG tree manually, 
-        because constructing it using the range analyzer (as 
-        AND_i( t.keypart != c_i)) will cause lots of memory to be consumed
-        (see BUG#15872). 
-      */
       if (func->array && func->cmp_type != ROW_RESULT)
       {
+        /*
+          We get here for conditions in form "t.key NOT IN (c1, c2, ...)" 
+          (where c{i} are constants).
+          Our goal is to produce a SEL_ARG graph that represents intervals:
+          
+          ($MIN<t.key<c1) OR (c1<t.key<c2) OR (c2<t.key<c3) OR ...    (*)
+          
+          where $MIN is either "-inf" or NULL.
+          
+          The most straightforward way to handle NOT IN would be to convert
+          it to "(t.key != c1) AND (t.key != c2) AND ..." and let the range
+          optimizer to build SEL_ARG graph from that. However that will cause
+          the range optimizer to use O(N^2) memory (it's a bug, not filed),
+          and people do use big NOT IN lists (see BUG#15872). Also, for big          
+          NOT IN lists constructing/using graph (*) does not make the query
+          faster.
+          
+          So, we will handle NOT IN manually in the following way:
+          * if the number of entries in the NOT IN list is less then 
+            NOT_IN_IGNORE_THRESHOLD, we will construct SEL_ARG graph (*)
+            manually.
+          * Otherwise, we will construct a smaller graph: for 
+            "t.key NOT IN (c1,...cN)" we construct a graph representing 
+            ($MIN < t.key) OR (cN < t.key)  // here sequence of c_i is
+                                            // ordered.
+
+          A note about partially-covering indexes: for those (e.g. for 
+          "a CHAR(10), KEY(a(5))") the handling is correct (albeit not very
+          efficient):
+          Instead of "t.key < c1" we get "t.key <= prefix-val(c1)".
+          Combining the intervals in (*) together, we get:
+          (-inf<=t.key<=c1) OR (c1<=t.key<=c2) OR (c2<=t.key<=c3) OR ...
+          i.e. actually we get intervals combined into one interval:
+          (-inf<=t.key<=+inf). This doesn't make much sense but it doesn't
+          cause any problems.
+        */
+        MEM_ROOT *tmp_root= param->mem_root;
+        param->thd->mem_root= param->old_root;
         /* 
           Create one Item_type constant object. We'll need it as
           get_mm_parts only accepts constant values wrapped in Item_Type
@@ -3522,25 +3551,35 @@ static SEL_TREE *get_func_mm_tree(PARAM *param, Item_func *cond_func,
           per-statement mem_root (while thd->mem_root is currently pointing
           to mem_root local to range optimizer).
         */
-        MEM_ROOT *tmp_root= param->mem_root;
-        param->thd->mem_root= param->old_root;
         Item *value_item= func->array->create_item();
         param->thd->mem_root= tmp_root;
 
         if (!value_item)
           break;
         
-        /* Get a SEL_TREE for "-inf < X < c_0" interval */
-        func->array->value_to_item(0, value_item);
+        /* Get a SEL_TREE for "(-inf|NULL) < X < c_0" interval.  */
+        uint i=0;
+        do 
+        {
+          func->array->value_to_item(i, value_item);
           tree= get_mm_parts(param, cond_func, field, Item_func::LT_FUNC,
                              value_item, cmp_type);
           if (!tree)
             break;
+          i++;
+        } while (i < func->array->count && tree->type == SEL_TREE::IMPOSSIBLE);
+
+        if (!tree || tree->type == SEL_TREE::IMPOSSIBLE)
+        {
+          /* We get here in cases like "t.unsigned NOT IN (-1,-2,-3) */
+          tree= NULL;
+          break;
+        }
 #define NOT_IN_IGNORE_THRESHOLD 1000        
         SEL_TREE *tree2;
         if (func->array->count < NOT_IN_IGNORE_THRESHOLD)
         {
-          for (uint i=1; i < func->array->count; i++)
+          for (; i < func->array->count; i++)
           {
             if (func->array->compare_elems(i, i-1))
             {
@@ -3548,18 +3587,27 @@ static SEL_TREE *get_func_mm_tree(PARAM *param, Item_func *cond_func,
               func->array->value_to_item(i, value_item);
               tree2= get_mm_parts(param, cond_func, field, Item_func::LT_FUNC,
                                   value_item, cmp_type);
+              if (!tree2)
+              {
+                tree= NULL;
+                break;
+              }
 
               /* Change all intervals to be "c_{i-1} < X < c_i" */
               for (uint idx= 0; idx < param->keys; idx++)
               {
-                SEL_ARG *new_interval;
-                if ((new_interval=  tree2->keys[idx]))
+                SEL_ARG *new_interval, *last_val;
+                if (((new_interval= tree2->keys[idx])) && 
+                    ((last_val= tree->keys[idx]->last())))
                 {
-                  SEL_ARG *last_val= tree->keys[idx]->last();
                   new_interval->min_value= last_val->max_value;
                   new_interval->min_flag= NEAR_MIN;
                 }
               }
+              /* 
+                The following doesn't try to allocate memory so no need to
+                check for NULL.
+              */
               tree= tree_or(param, tree, tree2);
             }
           }
@@ -3567,6 +3615,8 @@ static SEL_TREE *get_func_mm_tree(PARAM *param, Item_func *cond_func,
         else
           func->array->value_to_item(func->array->count - 1, value_item);
         
+        if (tree && tree->type != SEL_TREE::IMPOSSIBLE)
+        {
           /* 
             Get the SEL_TREE for the last "c_last < X < +inf" interval 
             (value_item cotains c_last already)
@@ -3575,6 +3625,7 @@ static SEL_TREE *get_func_mm_tree(PARAM *param, Item_func *cond_func,
                               value_item, cmp_type);
           tree= tree_or(param, tree, tree2);
         }
+      }
       else
       {
         tree= get_ne_mm_tree(param, cond_func, field,

sql/sql_acl.cc

@@ -6023,20 +6023,21 @@ void fill_effective_table_privileges(THD *thd, GRANT_INFO *grant,
   }
 
   /* table privileges */
+  rw_rdlock(&LOCK_grant);
   if (grant->version != grant_version)
   {
-    rw_rdlock(&LOCK_grant);
     grant->grant_table=
       table_hash_search(sctx->host, sctx->ip, db,
 			sctx->priv_user,
 			table, 0);              /* purecov: inspected */
     grant->version= grant_version;              /* purecov: inspected */
-    rw_unlock(&LOCK_grant);
   }
   if (grant->grant_table != 0)
   {
     grant->privilege|= grant->grant_table->privs;
   }
+  rw_unlock(&LOCK_grant);
+
   DBUG_PRINT("info", ("privilege 0x%lx", grant->privilege));
   DBUG_VOID_RETURN;
 }