New SET syntax & system variables.

Made a some new buffers thread specific and changeable.
Resize of key_buffer.
AUTO_COMMIT -> AUTOCOMMIT
Fixed mutex bug in DROP DATABASE
Fixed bug when using auto_increment as second part of a key where first part could include NULL.
Split handler->extra() to extra() and extra_opt() to be able to support thread specific buffers.
Don't write message to error log when slave reconnects becasue of timeout.
Fixed possible update problem when using DELETE/UPDATE on small tables
(In some cases we used index even if table scanning would be better)
A lot of minior code cleanups


BitKeeper/deleted/.del-net.c~ef21d6402bb882f9:
  Delete: libmysql/net.c
BitKeeper/etc/ignore:
  added libmysql/net.c
Docs/manual.texi:
  New SET syntax & system variables.
client/client_priv.h:
  moved order of include files
client/mysql.cc:
  Removed compiler warning
client/mysqladmin.c:
  Use new SHOW GLOBAL syntax (if server supports it)
configure.in:
  version change
include/Makefile.am:
  indentation cleanup
include/my_getopt.h:
  Made some helper functions global
include/my_sys.h:
  Removed not used code
include/myisam.h:
  Added extra argument to ..._extra()
include/myisammrg.h:
  Added extra argument to ..._extra()
include/mysql_com.h:
  changed NET to be able to support changeable system variables
include/mysql_embed.h:
  Added MYSQL_SERVER_SUFFIX
include/mysql_version.h.in:
  Added check of multiple including (needed for embedded library)
include/mysqld_error.h:
  New error messages
innobase/dict/dict0dict.c:
  Remove compiler warnings
innobase/include/ut0mem.h:
  Remove compiler warnings
innobase/include/ut0mem.ic:
  Remove compiler warnings
isam/isamchk.c:
  new init_key_cache() arguments
isam/isamlog.c:
  new init_key_cache() arguments
isam/test2.c:
  new init_key_cache() arguments
isam/test3.c:
  new init_key_cache() arguments
libmysql/Makefile.am:
  Removed net.c (Automaticly make it from net_serv.cc)
libmysql/Makefile.shared:
  Removed net.c (Automaticly make it from net_serv.cc)
libmysql/libmysql.c:
  Changeable system variables
libmysqld/Makefile.am:
  Added set_var.cc file
libmysqld/embedded_priv.h:
  Changed order of include fiels
libmysqld/lib_sql.cc:
  merge with mysqld.cc (for changeable variables)
libmysqld/libmysqld.c:
  New changeable system variables
myisam/mi_check.c:
  Added extra argument to ..._extra()
myisam/mi_extra.c:
  Added extra argument to ..._extra()
myisam/mi_open.c:
  Removed not used variable
myisam/mi_test1.c:
  Changed call to init_key_cache
myisam/mi_test2.c:
  Added extra argument to ..._extra()
myisam/mi_test3.c:
  Added extra argument to ..._extra()
myisam/mi_write.c:
  Add cache size argument to bulk-insert-init
myisam/myisamchk.c:
  Use new key cache
myisam/myisamdef.h:
  new mi_init_bulk_insert() arguments
myisam/myisamlog.c:
  Added extra argument to ..._extra()
myisam/myisampack.c:
  Added extra argument to ..._extra()
myisammrg/myrg_extra.c:
  Added extra argument to ..._extra()
myisammrg/myrg_rrnd.c:
  Added extra argument to ..._extra()
mysql-test/r/insert_select.result:
  New changeable system variables
mysql-test/r/key.result:
  Test of bug in auto_increment
mysql-test/r/query_cache.result:
  New changeable system variables
mysql-test/r/rpl000001.result:
  New changeable system variables
mysql-test/r/rpl000016.result:
  New changeable system variables
mysql-test/r/union.result:
  New changeable system variables
mysql-test/r/user_var.result:
  New changeable system variables
mysql-test/r/variables.result:
  New changeable system variables
mysql-test/t/key.test:
  Test of bug in auto_increment
mysql-test/t/query_cache.test:
  New changeable system variables
mysql-test/t/rpl000001.test:
  New changeable system variables
mysql-test/t/rpl000009.test:
  New changeable system variables
mysql-test/t/rpl000016.test:
  New changeable system variables
mysql-test/t/rpl_compat.test:
  New changeable system variables
mysql-test/t/union.test:
  New changeable system variables
mysql-test/t/user_var.test:
  New changeable system variables
mysql-test/t/variables.test:
  New changeable system variables
mysys/default.c:
  Bigger default memory allocation
mysys/mf_iocache.c:
  Removed compiler warning
mysys/mf_keycache.c:
  Made key cache resizable on the fly
  Removed not needed extra argument to init_key_cache()
mysys/my_getopt.c:
  Made some helper functions global
sql/Makefile.am:
  Aded set_var.cc
sql/convert.cc:
  Comment cleanup
sql/field.cc:
  new changeable system variables
sql/filesort.cc:
  new changeable system variables
sql/ha_berkeley.cc:
  AUTO_COMMIT -> AUTOCOMMIT
sql/ha_innodb.cc:
  new changeable system variables
sql/ha_myisam.cc:
  Added extra argument to ..._extra()
sql/ha_myisam.h:
  Added extra argument to ..._extra()
sql/ha_myisammrg.cc:
  Added extra argument to ..._extra()
sql/ha_myisammrg.h:
  Added extra argument to ..._extra()
sql/handler.cc:
  Added extra argument to ..._extra()
  Added resize of key cache
  Change ha_table_typelib for use with new system variables
sql/handler.h:
  Added extra argument to ..._extra()
sql/item.cc:
  new changeable system variables
sql/item.h:
  Added better support of Item_uint
sql/item_func.cc:
  Added support for SET @@[global | session] system_variable
sql/item_strfunc.cc:
  new changeable system variables
sql/key.cc:
  Fixed bug in auto_increment on second part keys
sql/lex.h:
  Removed not needed keywords
sql/log.cc:
  new changeable system variables
sql/log_event.cc:
  new changeable system variables
sql/log_event.h:
  Removed not needed var reference
sql/mini_client.cc:
  new changeable system variables
  code cleanup
sql/mini_client.h:
  Indentation cleanup
sql/mysql_priv.h:
  Changed order of include files & variables to make file more readable
sql/mysqld.cc:
  Changed order of variables to make file more readable.
  Support for changeable variables
  Rename of system variables
  Moved init_vars to set_var.cc
  Changed output of --help
sql/net_pkg.cc:
  Added my_net_local_init() to make it possible to set different defaults for network connection depending if you are a client, embedded library or server.
sql/net_serv.cc:
  new changeable system variables
  To support this, some global variables had to be move to the NET structure.
sql/records.cc:
  new changeable system variables
  use extra_opt()
sql/repl_failsafe.cc:
  new changeable system variables
  minior code cleanups
sql/repl_failsafe.h:
  removed not needed external var reference
sql/share/czech/errmsg.txt:
  new changeable system variables
sql/share/danish/errmsg.txt:
  new changeable system variables
sql/share/dutch/errmsg.txt:
  new changeable system variables
sql/share/english/errmsg.txt:
  new changeable system variables
sql/share/estonian/errmsg.txt:
  new changeable system variables
sql/share/french/errmsg.txt:
  new changeable system variables
sql/share/german/errmsg.txt:
  new changeable system variables
sql/share/greek/errmsg.txt:
  new changeable system variables
sql/share/hungarian/errmsg.txt:
  new changeable system variables
sql/share/italian/errmsg.txt:
  new changeable system variables
sql/share/japanese/errmsg.txt:
  new changeable system variables
sql/share/korean/errmsg.txt:
  new changeable system variables
sql/share/norwegian-ny/errmsg.txt:
  new changeable system variables
sql/share/norwegian/errmsg.txt:
  new changeable system variables
sql/share/polish/errmsg.txt:
  new changeable system variables
sql/share/portuguese/errmsg.txt:
  new changeable system variables
sql/share/romanian/errmsg.txt:
  new changeable system variables
sql/share/russian/errmsg.txt:
  new changeable system variables
sql/share/slovak/errmsg.txt:
  new changeable system variables
sql/share/spanish/errmsg.txt:
  new changeable system variables
sql/share/swedish/errmsg.txt:
  new changeable system variables
sql/share/ukrainian/errmsg.txt:
  new changeable system variables
sql/slave.cc:
  new changeable system variables
  Added some suppression of error messages
  Initialize current_thd for all slave threads.
sql/sql_acl.cc:
  Added checking of arguments for SET PASSWORD (for new SET defintion)
sql/sql_acl.h:
  new prototypes
sql/sql_base.cc:
  new changeable system variables
sql/sql_cache.cc:
  new changeable system variables
sql/sql_cache.h:
  Renamed some arguments to make code more readable
sql/sql_class.cc:
  new changeable system variables
sql/sql_class.h:
  New changeable system variables
  Code cleanup
sql/sql_db.cc:
  Fixed bug in DROP DATABASE
sql/sql_delete.cc:
  Usage of wrong define in test (possible speed problem)
sql/sql_insert.cc:
  use extra_opt()
  Code cleanup
sql/sql_lex.cc:
  Added support for SET @@[global | session] system_variable
sql/sql_lex.h:
  Added support for SET @@[global | session] system_variable
sql/sql_load.cc:
  Cleanup for embedded library
  Use extra_opt()
sql/sql_parse.cc:
  Cleanup for embedded library
  New changeable system variables
sql/sql_repl.cc:
  new changeable system variables
sql/sql_repl.h:
  Fixed variable definitions
sql/sql_select.cc:
  new changeable system variables
sql/sql_show.cc:
  New changeable system variables
sql/sql_table.cc:
  Fixed bug in DROP DATABASE
sql/sql_union.cc:
  New changeable system variables
sql/sql_update.cc:
  Usage of wrong define in test (possible speed problem)
sql/sql_yacc.yy:
  New changeable system variables
sql/structs.h:
  Added typedef for SHOW_VAR
sql/table.cc:
  Fixed bug in auto_increment on second part keys
sql/uniques.cc:
  Comment fix
sql/unireg.h:
  A

1 files changed, 31 insertions, 6 deletions

diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc
index 7015ce3f98b..9a6eb05ac5d 100644
--- a/sql/sql_lex.cc
+++ b/sql/sql_lex.cc
@@ -147,7 +147,7 @@ LEX *lex_start(THD *thd, uchar *buf,uint length)
   lex->select->in_sum_expr=0;
   lex->select->expr_list.empty();
   lex->select->ftfunc_list.empty();
-  lex->convert_set=(lex->thd=thd)->convert_set;
+  lex->convert_set=(lex->thd=thd)->variables.convert_set;
   lex->yacc_yyss=lex->yacc_yyvs=0;
   lex->ignore_space=test(thd->sql_mode & MODE_IGNORE_SPACE);
   lex->slave_thd_opt=0;
@@ -525,7 +525,7 @@ int yylex(void *arg)
       }
       yylval->lex_str=get_token(lex,length);
       if (lex->convert_set)
-	    lex->convert_set->convert((char*) yylval->lex_str.str,lex->yytoklen);
+	lex->convert_set->convert((char*) yylval->lex_str.str,lex->yytoklen);
       return(IDENT);
 
     case STATE_IDENT_SEP:		// Found ident and now '.'
@@ -853,14 +853,12 @@ int yylex(void *arg)
       }
       break;
     case STATE_USER_END:		// end '@' of user@hostname
-      switch (state_map[yyPeek()])
-      {
+      switch (state_map[yyPeek()]) {
       case STATE_STRING:
       case STATE_USER_VARIABLE_DELIMITER:
 	break;
       case STATE_USER_END:
-	lex->next_state=STATE_USER_END;
-	yySkip();
+	lex->next_state=STATE_SYSTEM_VAR;
 	break;
       default:
 	lex->next_state=STATE_HOSTNAME;
@@ -875,6 +873,33 @@ int yylex(void *arg)
 	   c= yyGet()) ;
       yylval->lex_str=get_token(lex,yyLength());
       return(LEX_HOSTNAME);
+    case STATE_SYSTEM_VAR:
+      yylval->lex_str.str=(char*) lex->ptr;
+      yylval->lex_str.length=1;
+      lex->next_state=STATE_IDENT_OR_KEYWORD;
+      yySkip();					// Skip '@'
+      return((int) '@');
+    case STATE_IDENT_OR_KEYWORD:
+      /*
+	We come here when we have found two '@' in a row.
+	We should now be able to handle:
+	[(global | local | session) .]variable_name
+      */
+
+      while (state_map[c=yyGet()] == STATE_IDENT ||
+	     state_map[c] == STATE_NUMBER_IDENT) ;
+      if (c == '.')
+	lex->next_state=STATE_IDENT_SEP;
+      length= (uint) (lex->ptr - lex->tok_start)-1;
+      if ((tokval= find_keyword(lex,length,0)))
+      {
+	yyUnget();				// Put back 'c'
+	return(tokval);				// Was keyword
+      }
+      yylval->lex_str=get_token(lex,length);
+      if (lex->convert_set)
+	lex->convert_set->convert((char*) yylval->lex_str.str,lex->yytoklen);
+      return(IDENT);
     }
   }
 }