Merge mskold@build.mysql.com:/home/bk/mysql-4.1

into mysql.com:/usr/local/home/marty/MySQL/test/mysql-4.1

BitKeeper/etc/logging_ok

@@ -30,6 +30,7 @@ bk@admin.bk
 bk@mysql.r18.ru
 brian@avenger.(none)
 brian@brian-akers-computer.local
+brian@private-client-ip-101.oz.net
 carsten@tsort.bitbybit.dk
 davida@isil.mysql.com
 dlenev@brandersnatch.localdomain

configure.in

@@ -4,7 +4,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT(sql/mysqld.cc)
 AC_CANONICAL_SYSTEM
 # The Docs Makefile.am parses this line!
-AM_INIT_AUTOMAKE(mysql, 4.1.5-gamma)
+AM_INIT_AUTOMAKE(mysql, 4.1.6-gamma)
 AM_CONFIG_HEADER(config.h)
 
 PROTOCOL_VERSION=10

include/hash.h

@@ -47,6 +47,7 @@ my_bool _hash_init(HASH *hash, CHARSET_INFO *charset,
 		   uint key_length, hash_get_key get_key,
 		   void (*free_element)(void*), uint flags CALLER_INFO_PROTO);
 void hash_free(HASH *tree);
+void hash_reset(HASH *hash);
 byte *hash_element(HASH *hash,uint idx);
 gptr hash_search(HASH *info,const byte *key,uint length);
 gptr hash_next(HASH *info,const byte *key,uint length);
@@ -56,7 +57,6 @@ my_bool hash_update(HASH *hash,byte *record,byte *old_key,uint old_key_length);
 void hash_replace(HASH *hash, uint idx, byte *new_row);
 my_bool hash_check(HASH *hash);			/* Only in debug library */
 
-#define hash_clear(H) bzero((char*) (H),sizeof(*(H)))
 #define hash_inited(H) ((H)->array.buffer != 0)
 
 #ifdef	__cplusplus

libmysql/client_settings.h

@@ -42,6 +42,7 @@ my_bool handle_local_infile(MYSQL *mysql, const char *net_filename);
 
 void mysql_read_default_options(struct st_mysql_options *options,
 				const char *filename,const char *group);
+void mysql_detach_stmt_list(LIST **stmt_list);
 MYSQL * STDCALL
 cli_mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
 		       const char *passwd, const char *db,

libmysql/libmysql.c

@@ -662,6 +662,7 @@ my_bool	STDCALL mysql_change_user(MYSQL *mysql, const char *user,
 				  const char *passwd, const char *db)
 {
   char buff[512],*end=buff;
+  int rc;
   DBUG_ENTER("mysql_change_user");
 
   if (!user)
@@ -695,18 +696,26 @@ my_bool	STDCALL mysql_change_user(MYSQL *mysql, const char *user,
   /* Write authentication package */
   simple_command(mysql,COM_CHANGE_USER, buff,(ulong) (end-buff),1);
 
-  if ((*mysql->methods->read_change_user_result)(mysql, buff, passwd))
-    DBUG_RETURN(1);
-  /* Free old connect information */
-  my_free(mysql->user,MYF(MY_ALLOW_ZERO_PTR));
-  my_free(mysql->passwd,MYF(MY_ALLOW_ZERO_PTR));
-  my_free(mysql->db,MYF(MY_ALLOW_ZERO_PTR));
+  rc= (*mysql->methods->read_change_user_result)(mysql, buff, passwd);
 
-  /* alloc new connect information */
-  mysql->user=  my_strdup(user,MYF(MY_WME));
-  mysql->passwd=my_strdup(passwd,MYF(MY_WME));
-  mysql->db=    db ? my_strdup(db,MYF(MY_WME)) : 0;
-  DBUG_RETURN(0);
+  /*
+    The server will close all statements no matter was the attempt
+    to change user successful or not.
+  */
+  mysql_detach_stmt_list(&mysql->stmts);
+  if (rc == 0)
+  {
+    /* Free old connect information */
+    my_free(mysql->user,MYF(MY_ALLOW_ZERO_PTR));
+    my_free(mysql->passwd,MYF(MY_ALLOW_ZERO_PTR));
+    my_free(mysql->db,MYF(MY_ALLOW_ZERO_PTR));
+
+    /* alloc new connect information */
+    mysql->user=  my_strdup(user,MYF(MY_WME));
+    mysql->passwd=my_strdup(passwd,MYF(MY_WME));
+    mysql->db=    db ? my_strdup(db,MYF(MY_WME)) : 0;
+  }
+  DBUG_RETURN(rc);
 }
 
 #if defined(HAVE_GETPWUID) && defined(NO_GETPWUID_DECL)

mysql-test/t/archive.test

@@ -1297,4 +1297,6 @@ INSERT INTO t2 VALUES (2,011401,37,'breaking','dreaded','Steinberg','W');
 INSERT INTO t2 VALUES (3,011402,37,'Romans','scholastics','jarring','');
 INSERT INTO t2 VALUES (4,011403,37,'intercepted','audiology','tinily','');
 SELECT * FROM t2;
+OPTIMIZE TABLE t2;
+SELECT * FROM t2;
 drop table t1, t2;

mysys/hash.c

@@ -88,6 +88,32 @@ void hash_free(HASH *hash)
   DBUG_VOID_RETURN;
 }
 
+
+/*
+  Delete all elements from the hash (the hash itself is to be reused).
+
+  SYNOPSIS
+    hash_reset()
+      hash   the hash to delete elements of
+*/
+
+void hash_reset(HASH *hash)
+{
+  DBUG_ENTER("hash_reset");
+  if (hash->free)
+  {
+    HASH_LINK *link= dynamic_element(&hash->array, 0, HASH_LINK*);
+    HASH_LINK *end= link + hash->records;
+    for (; link < end; ++link)
+      (*hash->free)(link->data);
+  }
+  reset_dynamic(&hash->array);
+  hash->records= 0;
+  hash->blength= 1;
+  hash->current_record= NO_RECORD;
+  DBUG_VOID_RETURN;
+}
+
 	/* some helper functions */
 
 /*

ndb/src/common/mgmcommon/LocalConfig.cpp

@@ -229,10 +229,10 @@ LocalConfig::parseString(const char * connectString, char *line){
 
 bool LocalConfig::readFile(const char * filename, bool &fopenError)
 {
-  char line[150], line2[150];
-    
+  char line[1024];
+  
   fopenError = false;
-
+  
   FILE * file = fopen(filename, "r");
   if(file == 0){
     snprintf(line, 150, "Unable to open local config file: %s", filename);
@@ -241,31 +241,33 @@ bool LocalConfig::readFile(const char * filename, bool &fopenError)
     return false;
   }
 
-  unsigned int sz = 1024;
-  char* theString = (char*)NdbMem_Allocate(sz);
-  theString[0] = 0;
+  BaseString theString;
 
-  fgets(theString, sz, file);
-  while (fgets(line+1, 100, file)) {
-    line[0] = ';';
-    while (strlen(theString) + strlen(line) >= sz) {
-      sz = sz*2;
-      char *newString = (char*)NdbMem_Allocate(sz);
-      strcpy(newString, theString);
-      free(theString);
-      theString = newString;
+  while(fgets(line, 1024, file)){
+    BaseString tmp(line);
+    tmp.trim(" \t\n\r");
+    if(tmp.length() > 0 && tmp.c_str()[0] != '#'){
+      theString.append(tmp);
+      break;
     }
-    strcat(theString, line);
   }
-
-  bool return_value = parseString(theString, line);
+  while (fgets(line, 1024, file)) {
+    BaseString tmp(line);
+    tmp.trim(" \t\n\r");
+    if(tmp.length() > 0 && tmp.c_str()[0] != '#'){
+      theString.append(";");
+      theString.append(tmp);
+    }
+  }
+  
+  bool return_value = parseString(theString.c_str(), line);
 
   if (!return_value) {
-    snprintf(line2, 150, "Reading %s: %s", filename, line);
-    setError(0,line2);
+    BaseString tmp;
+    tmp.assfmt("Reading %s: %s", filename, line);
+    setError(0, tmp.c_str());
   }
 
-  free(theString);
   fclose(file);
   return return_value;
 }

sql-common/client.c

@@ -2239,6 +2239,32 @@ static void mysql_close_free(MYSQL *mysql)
 }
 
 
+/*
+  Clear connection pointer of every statement: this is necessary
+  to give error on attempt to use a prepared statement of closed
+  connection.
+
+  SYNOPSYS
+    mysql_detach_stmt_list()
+      stmt_list  pointer to mysql->stmts
+*/
+
+void mysql_detach_stmt_list(LIST **stmt_list)
+{
+#ifdef MYSQL_CLIENT
+  /* Reset connection handle in all prepared statements. */
+  LIST *element= *stmt_list;
+  for (; element; element= element->next)
+  {
+    MYSQL_STMT *stmt= (MYSQL_STMT *) element->data;
+    stmt->mysql= 0;
+    /* No need to call list_delete for statement here */
+  }
+  *stmt_list= 0;
+#endif /* MYSQL_CLIENT */
+}
+
+
 void STDCALL mysql_close(MYSQL *mysql)
 {
   DBUG_ENTER("mysql_close");
@@ -2255,20 +2281,7 @@ void STDCALL mysql_close(MYSQL *mysql)
     }
     mysql_close_free_options(mysql);
     mysql_close_free(mysql);
-#ifdef MYSQL_CLIENT
-    if (mysql->stmts)
-    {
-      /* Reset connection handle in all prepared statements. */
-      LIST *element;
-      for (element= mysql->stmts; element; element= element->next)
-      {
-        MYSQL_STMT *stmt= (MYSQL_STMT *) element->data;
-        stmt->mysql= 0;
-        /* No need to call list_delete for statement here */
-      }
-      mysql->stmts= 0;
-    }
-#endif /*MYSQL_CLIENT*/
+    mysql_detach_stmt_list(&mysql->stmts);
 #ifndef TO_BE_DELETED
     /* free/close slave list */
     if (mysql->rpl_pivot)

sql/examples/ha_archive.cc

@@ -70,7 +70,6 @@
    Allow users to set compression level.
    Add truncate table command.
    Implement versioning, should be easy.
-   Implement optimize so we can fix broken tables.
    Allow for errors, find a way to mark bad rows.
    See if during an optimize you can make the table smaller.
    Talk to the gzip guys, come up with a writable format so that updates are doable
@@ -88,6 +87,7 @@ static int archive_init= 0;
 
 /* The file extension */
 #define ARZ ".ARZ"
+#define ARN ".ARN"
 
 /*
   Used for hash table that tracks open tables.
@@ -117,7 +117,7 @@ static ARCHIVE_SHARE *get_share(const char *table_name, TABLE *table)
     if (!archive_init)
     {
       VOID(pthread_mutex_init(&archive_mutex,MY_MUTEX_INIT_FAST));
-      if (!hash_init(&archive_open_tables,system_charset_info,32,0,0,
+      if (hash_init(&archive_open_tables,system_charset_info,32,0,0,
                        (hash_get_key) archive_get_key,0,0))
       {
         pthread_mutex_unlock(&LOCK_mysql_create_db);
@@ -205,7 +205,7 @@ static int free_share(ARCHIVE_SHARE *share)
   We just implement one additional file extension.
 */
 const char **ha_archive::bas_ext() const
-{ static const char *ext[]= { ARZ, NullS }; return ext; }
+{ static const char *ext[]= { ARZ, ARN, NullS }; return ext; }
 
 
 /* 
@@ -322,6 +322,11 @@ err:
 /* 
   Look at ha_archive::open() for an explanation of the row format.
   Here we just write out the row.
+
+  Wondering about start_bulk_insert()? We don't implement it for
+  archive since it optimizes for lots of writes. The only save
+  for implementing start_bulk_insert() is that we could skip 
+  setting dirty to true each time.
 */
 int ha_archive::write_row(byte * buf)
 {
@@ -380,17 +385,7 @@ int ha_archive::rnd_init(bool scan)
     pthread_mutex_lock(&share->mutex);
     if (share->dirty == TRUE)
     {
-/* I was having problems with OSX, but it worked for 10.3 so I am wrapping this with and ifdef */
-#ifdef BROKEN_GZFLUSH
-      gzclose(share->archive_write);
-      if ((share->archive_write= gzopen(share->data_file_name, "ab")) == NULL)
-      {
-        pthread_mutex_unlock(&share->mutex);
-        DBUG_RETURN(errno ? errno : -1);
-      }
-#else
       gzflush(share->archive_write, Z_SYNC_FLUSH);
-#endif
       share->dirty= FALSE;
     }
     pthread_mutex_unlock(&share->mutex);
@@ -504,6 +499,54 @@ int ha_archive::rnd_pos(byte * buf, byte *pos)
   DBUG_RETURN(get_row(buf));
 }
 
+/*
+  The table can become fragmented if data was inserted, read, and then
+  inserted again. What we do is open up the file and recompress it completely. 
+  */
+int ha_archive::optimize(THD* thd, HA_CHECK_OPT* check_opt)
+{
+  DBUG_ENTER("ha_archive::optimize");
+  int read; // Bytes read, gzread() returns int
+  gzFile reader, writer;
+  char block[IO_SIZE];
+  char writer_filename[FN_REFLEN];
+
+  /* Lets create a file to contain the new data */
+  fn_format(writer_filename,share->table_name,"",ARN, MY_REPLACE_EXT|MY_UNPACK_FILENAME);
+
+  /* Closing will cause all data waiting to be flushed, to be flushed */
+  gzclose(share->archive_write);
+
+  if ((reader= gzopen(share->data_file_name, "rb")) == NULL)
+    DBUG_RETURN(-1); 
+
+  if ((writer= gzopen(writer_filename, "wb")) == NULL)
+  {
+    gzclose(reader);
+    DBUG_RETURN(-1); 
+  }
+
+  while (read= gzread(reader, block, IO_SIZE))
+    gzwrite(writer, block, read);
+
+  gzclose(reader);
+  gzclose(writer);
+
+  my_rename(writer_filename,share->data_file_name,MYF(0));
+
+  /* 
+    We reopen the file in case some IO is waiting to go through.
+    In theory the table is closed right after this operation,
+    but it is possible for IO to still happen.
+    I may be being a bit too paranoid right here.
+  */
+  if ((share->archive_write= gzopen(share->data_file_name, "ab")) == NULL)
+    DBUG_RETURN(errno ? errno : -1);
+  share->dirty= FALSE;
+
+  DBUG_RETURN(0); 
+}
+
 /******************************************************************************
 
   Everything below here is default, please look at ha_example.cc for 

sql/examples/ha_archive.h

@@ -112,7 +112,7 @@ public:
   int external_lock(THD *thd, int lock_type);
   ha_rows records_in_range(uint inx, key_range *min_key, key_range *max_key);
   int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info);
-
+  int optimize(THD* thd, HA_CHECK_OPT* check_opt);
   THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
                              enum thr_lock_type lock_type);
 };

sql/ha_ndbcluster.cc

@@ -185,7 +185,7 @@ void ha_ndbcluster::records_update()
   DBUG_PRINT("info", ("id=%d, no_uncommitted_rows_count=%d",
 		      ((const NDBTAB *)m_table)->getTableId(),
 		      info->no_uncommitted_rows_count));
-  if (info->records == ~(ha_rows)0)
+  //  if (info->records == ~(ha_rows)0)
   {
     Uint64 rows;
     if(ndb_get_table_statistics(m_ndb, m_tabname, &rows, 0) == 0){
@@ -617,7 +617,7 @@ int ha_ndbcluster::get_metadata(const char *path)
   DBUG_ENTER("get_metadata");
   DBUG_PRINT("enter", ("m_tabname: %s, path: %s", m_tabname, path));
 
-  if (!(tab= dict->getTable(m_tabname, &m_table_info)))
+  if (!(tab= dict->getTable(m_tabname)))
     ERR_RETURN(dict->getNdbError());
   DBUG_PRINT("info", ("Table schema version: %d", tab->getObjectVersion()));
   
@@ -665,8 +665,8 @@ int ha_ndbcluster::get_metadata(const char *path)
   if (error)
     DBUG_RETURN(error);
 
-  // All checks OK, lets use the table
-  m_table= (void*)tab;
+  m_table= NULL;
+  m_table_info= NULL;
   
   DBUG_RETURN(build_index_list(table, ILBP_OPEN));  
 }
@@ -781,6 +781,7 @@ void ha_ndbcluster::release_metadata()
   DBUG_PRINT("enter", ("m_tabname: %s", m_tabname));
 
   m_table= NULL;
+  m_table_info= NULL;
 
   // Release index list 
   for (i= 0; i < MAX_KEY; i++)
@@ -2402,7 +2403,17 @@ void ha_ndbcluster::info(uint flag)
   if (flag & HA_STATUS_VARIABLE)
   {
     DBUG_PRINT("info", ("HA_STATUS_VARIABLE"));
-    records_update();
+    if (m_table_info)
+    {
+      records_update();
+    }
+    else
+    {
+      Uint64 rows;
+      if(ndb_get_table_statistics(m_ndb, m_tabname, &rows, 0) == 0){
+	records= rows;
+      }
+    }
   }
   if (flag & HA_STATUS_CONST)
   {
@@ -2794,6 +2805,16 @@ int ha_ndbcluster::external_lock(THD *thd, int lock_type)
     // Start of transaction
     retrieve_all_fields= FALSE;
     ops_pending= 0;    
+    {
+      NDBDICT *dict= m_ndb->getDictionary();
+      const NDBTAB *tab;
+      void *tab_info;
+      if (!(tab= dict->getTable(m_tabname, &tab_info)))
+	ERR_RETURN(dict->getNdbError());
+      DBUG_PRINT("info", ("Table schema version: %d", tab->getObjectVersion()));
+      m_table= (void *)tab;
+      m_table_info= tab_info;
+    }
     no_uncommitted_rows_init(thd);
   } 
   else 
@@ -2816,6 +2837,8 @@ int ha_ndbcluster::external_lock(THD *thd, int lock_type)
         thd->transaction.stmt.ndb_tid= 0;
       }
     }
+    m_table= NULL;
+    m_table_info= NULL;
     if (m_active_trans)
       DBUG_PRINT("warning", ("m_active_trans != NULL"));
     if (m_active_cursor)
@@ -3301,6 +3324,7 @@ int ha_ndbcluster::alter_table_name(const char *from, const char *to)
     ERR_RETURN(dict->getNdbError());
 
   m_table= NULL;
+  m_table_info= NULL;
                                                                              
   DBUG_RETURN(0);
 }

sql/sql_class.cc

@@ -328,6 +328,7 @@ void THD::change_user(void)
   cleanup();
   cleanup_done= 0;
   init();
+  stmt_map.reset();
   hash_init(&user_vars, &my_charset_bin, USER_VARS_HASH_SIZE, 0, 0,
 	    (hash_get_key) get_var_key,
 	    (hash_free_key) free_user_var, 0);

sql/sql_class.h

@@ -566,7 +566,7 @@ public:
   assignment in Statement::Statement)
   Non-empty statement names are unique too: attempt to insert a new statement
   with duplicate name causes older statement to be deleted
-  
+
   Statements are auto-deleted when they are removed from the map and when the
   map is deleted.
 */
@@ -575,7 +575,7 @@ class Statement_map
 {
 public:
   Statement_map();
-  
+
   int insert(Statement *statement);
 
   Statement *find_by_name(LEX_STRING *name)
@@ -608,11 +608,18 @@ public:
     }
     hash_delete(&st_hash, (byte *) statement);
   }
+  /* Erase all statements (calls Statement destructor) */
+  void reset()
+  {
+    hash_reset(&names_hash);
+    hash_reset(&st_hash);
+    last_found_statement= 0;
+  }
 
   ~Statement_map()
   {
-    hash_free(&st_hash);
     hash_free(&names_hash);
+    hash_free(&st_hash);
   }
 private:
   HASH st_hash;

tests/client_test.c

@@ -10391,6 +10391,34 @@ static void test_bug5194()
 }
 
 
+static void test_bug5315()
+{
+  MYSQL_STMT *stmt;
+  const char *stmt_text;
+  int rc;
+
+  myheader("test_bug5315");
+
+  stmt_text= "SELECT 1";
+  stmt= mysql_stmt_init(mysql);
+  rc= mysql_stmt_prepare(stmt, stmt_text, strlen(stmt_text));
+  DBUG_ASSERT(rc == 0);
+  mysql_change_user(mysql, opt_user, opt_password, current_db);
+  rc= mysql_stmt_execute(stmt);
+  DBUG_ASSERT(rc != 0);
+  if (rc)
+    printf("Got error (as expected):\n%s", mysql_stmt_error(stmt));
+  /* check that connection is OK */
+  mysql_stmt_close(stmt);
+  stmt= mysql_stmt_init(mysql);
+  rc= mysql_stmt_prepare(stmt, stmt_text, strlen(stmt_text));
+  DBUG_ASSERT(rc == 0);
+  rc= mysql_stmt_execute(stmt);
+  DBUG_ASSERT(rc == 0);
+  mysql_stmt_close(stmt);
+}
+
+
 /*
   Read and parse arguments and MySQL options from my.cnf
 */
@@ -10694,6 +10722,8 @@ int main(int argc, char **argv)
     test_bug5399();         /* check that statement id uniquely identifies
                                statement */
     test_bug5194();         /* bulk inserts in prepared mode */
+    test_bug5315();         /* check that mysql_change_user closes all
+                               prepared statements */
     /*
       XXX: PLEASE RUN THIS PROGRAM UNDER VALGRIND AND VERIFY THAT YOUR TEST
       DOESN'T CONTAIN WARNINGS/ERRORS BEFORE YOU PUSH.