Increased max possible max_allowed_packet to 1G

Small optimization to not do external locking of temporary MyISAM tables.

Docs/manual.texi

@@ -31258,8 +31258,8 @@ stored into a temporary table) is calculated in MySQL Version
 @item expr2 or expr3 returns an integer @tab integer
 @end multitable
 
-If expr2 and expr3 are strings, then the result is case-sensitive if
-both strings are case-sensitive. (Starting from 3.23.51)
+If expr2 and expr3 are strings, then the result is case-insensitive if
+both strings are case-insensitive. (Starting from 3.23.51)
 
 @findex CASE
 @item CASE value WHEN [compare-value] THEN result [WHEN [compare-value] THEN result ...] [ELSE result] END
@@ -33246,9 +33246,15 @@ anything; just use the string value as it would be a number:
 
 @example
 mysql> SELECT 1+'1';
-        -> 2
+       -> 2
 @end example
 
+If you use a number in string context the number will automaticly be
+converted to a @code{BINARY} string.
+
+mysql> SELECT concat("hello you ",2);
+       ->  "hello you 2"
+
 MySQL supports arithmetic with both signed and unsigned 64-bit values.
 If you are using an numerical operations (like @code{+}) and one of the
 operands are @code{unsigned integer}, then the result will be unsigned.
@@ -50442,13 +50448,15 @@ each individual 4.0.x release.
 
 @itemize @bullet
 @item
-Fixed bug when doing a multi-line insert on a table with an
+Increased max possible @code{max_allowed_packet} in @code{mysqld} to 1G.
+@item
+Fixed bug when doing a multi-line @code{INSERT} on a table with an
 auto_increment key which was not in the first part of the key.
 @item
 Changed @code{LOAD DATA INFILE} to not recreate index if the table had
 rows from before.
 @item
-Fixed overrun bug when calling @code{AES_DECRYPT()} with wrong arguments
+Fixed overrun bug when calling @code{AES_DECRYPT()} with wrong arguments.
 @item
 @code{--skip-ssl} can now be used to disable SSL in the MySQL clients,
 even if one is using other ssl options in a options file or previously
@@ -50508,8 +50516,9 @@ Fixed a bug in my_getopt; --set-variable syntax didn't work for
 those options that didn't have a valid variable in my_option struct.
 This affected at least @code{default-table-type} option.
 @item
-Fixed a bug that caused @code{REPAIR TABLE} to fail on tables
-with duplicates in a unique key.
+Fixed a bug from 4.0.2 that caused @code{REPAIR TABLE} and
+@code{myisamchk --repair} to fail on tables with duplicates in a unique
+key.
 @item
 Fixed a bug from 4.0.3 in calculating the default field type for some
 functions. This affected queries of type @code{CREATE TABLE table_name

client/mysqlbinlog.cc

@@ -407,7 +407,8 @@ static void dump_local_log_entries(const char* logname)
   File fd = -1;
   IO_CACHE cache,*file= &cache;
   ulonglong rec_count = 0;
-  char last_db[FN_REFLEN+1], tmp_buff[BIN_LOG_HEADER_SIZE];
+  char last_db[FN_REFLEN+1];
+  byte tmp_buff[BIN_LOG_HEADER_SIZE];
   bool old_format = 0;
 
   last_db[0]=0;

client/mysqldump.c

@@ -232,7 +232,7 @@ static struct my_option my_long_options[] =
    NO_ARG, 0, 0, 0, 0, 0, 0},
   {"max_allowed_packet", OPT_MAX_ALLOWED_PACKET, "",
     (gptr*) &max_allowed_packet, (gptr*) &max_allowed_packet, 0,
-    GET_ULONG, REQUIRED_ARG, 24*1024*1024, 4096, 512*1024L*1024L,
+    GET_ULONG, REQUIRED_ARG, 24*1024*1024, 4096, 1024*1024L*1024L,
     MALLOC_OVERHEAD, 1024, 0},
   {"net_buffer_length", OPT_NET_BUFFER_LENGTH, "",
     (gptr*) &net_buffer_length, (gptr*) &net_buffer_length, 0,

include/Makefile.am

@@ -20,8 +20,8 @@ pkginclude_HEADERS =	dbug.h m_string.h my_sys.h my_list.h \
 			mysql.h mysql_com.h mysqld_error.h mysql_embed.h \
 		  	my_semaphore.h my_pthread.h my_no_pthread.h raid.h \
 			errmsg.h my_global.h my_net.h my_alloc.h \
-			my_getopt.h sslopt-longopts.h sslopt-usage.h \
-			sslopt-vars.h $(BUILT_SOURCES)
+			my_getopt.h sslopt-longopts.h \
+			sslopt-vars.h sslopt-case.h $(BUILT_SOURCES)
 noinst_HEADERS =	config-win.h config-os2.h \
 			nisam.h heap.h merge.h my_bitmap.h\
 			myisam.h myisampack.h myisammrg.h ft_global.h\

include/my_sys.h

@@ -553,9 +553,9 @@ extern gptr _my_memdup(const byte *from,uint length,
 		       const char *sFile, uint uLine,myf MyFlag);
 extern my_string _my_strdup(const char *from, const char *sFile, uint uLine,
 			    myf MyFlag);
-extern my_string _my_strdup_with_length(const char *from, uint length,
-					const char *sFile, uint uLine,
-					myf MyFlag);
+extern char *_my_strdup_with_length(const byte *from, uint length,
+				    const char *sFile, uint uLine,
+				    myf MyFlag);
 
 #ifndef TERMINATE
 extern void TERMINATE(FILE *file);

include/sslopt-usage.h

@@ -1,25 +0,0 @@
-/* Copyright (C) 2000 MySQL AB
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
-
-#ifdef HAVE_OPENSSL
-   puts("\
-   --ssl                Use SSL for connection (automatically set with other flags\n\
-   --ssl-key            X509 key in PEM format (implies --ssl)\n\
-   --ssl-cert           X509 cert in PEM format (implies --ssl)\n\
-   --ssl-ca             CA file in PEM format (check OpenSSL docs, implies --ssl)\n\
-   --ssl-capath         CA directory (check OpenSSL docs, implies --ssl)\n\
-   --ssl-cipher         SSL cipher to use (implies --ssl)");
-#endif

mysys/safemalloc.c

@@ -529,20 +529,20 @@ gptr _my_memdup(const byte *from, uint length, const char *sFile, uint uLine,
 } /*_my_memdup */
 
 
-my_string _my_strdup(const char *from, const char *sFile, uint uLine,
-		     myf MyFlags)
+char *_my_strdup(const char *from, const char *sFile, uint uLine,
+		 myf MyFlags)
 {
   gptr ptr;
   uint length=(uint) strlen(from)+1;
   if ((ptr=_mymalloc(length,sFile,uLine,MyFlags)) != 0)
     memcpy((byte*) ptr, (byte*) from,(size_t) length);
-  return((my_string) ptr);
+  return((char*) ptr);
 } /* _my_strdup */
 
 
-my_string _my_strdup_with_length(const char *from, uint length,
-				 const char *sFile, uint uLine,
-				 myf MyFlags)
+char *_my_strdup_with_length(const byte *from, uint length,
+			     const char *sFile, uint uLine,
+			     myf MyFlags)
 {
   gptr ptr;
   if ((ptr=_mymalloc(length+1,sFile,uLine,MyFlags)) != 0)
@@ -550,5 +550,5 @@ my_string _my_strdup_with_length(const char *from, uint length,
     memcpy((byte*) ptr, (byte*) from,(size_t) length);
     ptr[length]=0;
   }
-  return((my_string) ptr);
+  return((char *) ptr);
 }

sql/ha_isam.cc

@@ -244,7 +244,9 @@ int ha_isam::reset(void)
 
 int ha_isam::external_lock(THD *thd, int lock_type)
 {
-  return nisam_lock_database(file,lock_type);
+  if (!table->tmp_table)
+    return nisam_lock_database(file,lock_type);
+  return 0;
 }
 
 

sql/ha_myisam.cc

@@ -970,7 +970,9 @@ int ha_myisam::delete_table(const char *name)
 
 int ha_myisam::external_lock(THD *thd, int lock_type)
 {
-  return mi_lock_database(file,lock_type);
+  if (!table->tmp_table)
+    return mi_lock_database(file,lock_type);
+  return 0;
 }
 
 

sql/lock.cc

@@ -21,6 +21,46 @@
   before getting internal locks.  If we do it in the other order, the status
   information is not up to date when called from the lock handler.
 
+  GENERAL DESCRIPTION OF LOCKING
+
+  When not using LOCK TABLES:
+
+  - For each SQL statement mysql_lock_tables() is called for all involved
+    tables.
+    - mysql_lock_tables() will call
+      table_handler->external_lock(thd,locktype) for each table.
+      This is followed by a call to thr_multi_lock() for all tables.
+
+  - When statement is done, we call mysql_unlock_tables().
+    This will call thr_multi_unlock() followed by
+    table_handler->external_lock(thd, F_UNLCK) for each table.
+
+  - Note that mysql_unlock_tables() may be called several times as
+    MySQL in some cases can free some tables earlier than others.
+
+  - The above is true both for normal and temporary tables.
+
+  - Temporary non transactional tables are never passed to thr_multi_lock()
+    and we never call external_lock(thd, F_UNLOCK) on these.
+
+  When using LOCK TABLES:
+
+  - LOCK TABLE will call mysql_lock_tables() for all tables.
+    mysql_lock_tables() will call
+    table_handler->external_lock(thd,locktype) for each table.
+    This is followed by a call to thr_multi_lock() for all tables.
+
+  - For each statement, we will call table_handler->start_stmt(THD)
+    to inform the table handler that we are using the table.
+
+    The tables used can only be tables used in LOCK TABLES or a
+    temporary table.
+
+  - When statement is done, we will call ha_commit_stmt(thd);
+
+  - When calling UNLOCK TABLES we call mysql_unlock_tables() for all
+    tables used in LOCK TABLES
+
 TODO:
   Change to use my_malloc() ONLY when using LOCK TABLES command or when
   we are forced to use mysql_lock_merge.
@@ -206,7 +246,7 @@ void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock)
     sql_lock->lock_count= found;
   }
 
-  /* Then to the same for the external locks */
+  /* Then do the same for the external locks */
   /* Move all write locked tables first */
   TABLE **table=sql_lock->table;
   for (i=found=0 ; i < sql_lock->table_count ; i++)

sql/log_event.cc

@@ -744,10 +744,10 @@ Rotate_log_event::Rotate_log_event(const char* buf, int event_len,
     ident_offset = ROTATE_HEADER_LEN;
   }
   set_if_smaller(ident_len,FN_REFLEN-1);
-  if (!(new_log_ident= (char*) my_strdup_with_length((byte*) buf +
-						     ident_offset,
-						     (uint) ident_len,
-						     MYF(MY_WME))))
+  if (!(new_log_ident= my_strdup_with_length((byte*) buf +
+					     ident_offset,
+					     (uint) ident_len,
+					     MYF(MY_WME))))
     return;
   alloced = 1;
 }

sql/mysqld.cc

@@ -3477,7 +3477,7 @@ struct my_option my_long_options[] =
    "Max packetlength to send/receive from to server.",
    (gptr*) &global_system_variables.max_allowed_packet,
    (gptr*) &max_system_variables.max_allowed_packet, 0, GET_ULONG,
-   REQUIRED_ARG, 1024*1024L, 80, 64*1024*1024L, MALLOC_OVERHEAD, 1024, 0},
+   REQUIRED_ARG, 1024*1024L, 80, 1024L*1024L*1024L, MALLOC_OVERHEAD, 1024, 0},
   {"max_binlog_cache_size", OPT_MAX_BINLOG_CACHE_SIZE,
    "Can be used to restrict the total size used to cache a multi-transaction query.",
    (gptr*) &max_binlog_cache_size, (gptr*) &max_binlog_cache_size, 0,

sql/sql_table.cc

@@ -18,10 +18,10 @@
 /* drop and alter of tables */
 
 #include "mysql_priv.h"
-#include <hash.h>
 #ifdef HAVE_BERKELEY_DB
-#include <ha_berkeley.h>
+#include "ha_berkeley.h"
 #endif
+#include <hash.h>
 #include <myisam.h>
 #include <assert.h>