Implemented syntax recognition for CREATE ROLE

sql/mysqld.cc

@@ -3432,6 +3432,7 @@ SHOW_VAR com_status_vars[]= {
   {"create_function",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_SPFUNCTION]), SHOW_LONG_STATUS},
   {"create_index",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_INDEX]), SHOW_LONG_STATUS},
   {"create_procedure",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_PROCEDURE]), SHOW_LONG_STATUS},
+  {"create_role",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_ROLE]), SHOW_LONG_STATUS},
   {"create_server",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_SERVER]), SHOW_LONG_STATUS},
   {"create_table",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_TABLE]), SHOW_LONG_STATUS},
   {"create_trigger",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_TRIGGER]), SHOW_LONG_STATUS},

sql/sql_lex.h

@@ -169,6 +169,7 @@ enum enum_sql_command {
   SQLCOM_SHOW_WARNS, SQLCOM_EMPTY_QUERY, SQLCOM_SHOW_ERRORS,
   SQLCOM_SHOW_STORAGE_ENGINES, SQLCOM_SHOW_PRIVILEGES,
   SQLCOM_HELP, SQLCOM_CREATE_USER, SQLCOM_DROP_USER, SQLCOM_RENAME_USER,
+  SQLCOM_CREATE_ROLE,
   SQLCOM_REVOKE_ALL, SQLCOM_CHECKSUM,
   SQLCOM_CREATE_PROCEDURE, SQLCOM_CREATE_SPFUNCTION, SQLCOM_CALL,
   SQLCOM_DROP_PROCEDURE, SQLCOM_ALTER_PROCEDURE,SQLCOM_ALTER_FUNCTION,

sql/sql_parse.cc

@@ -366,6 +366,7 @@ void init_update_queries(void)
   sql_command_flags[SQLCOM_CREATE_USER]=       CF_CHANGES_DATA;
   sql_command_flags[SQLCOM_RENAME_USER]=       CF_CHANGES_DATA;
   sql_command_flags[SQLCOM_DROP_USER]=         CF_CHANGES_DATA;
+  sql_command_flags[SQLCOM_CREATE_ROLE]=       CF_CHANGES_DATA;
   sql_command_flags[SQLCOM_GRANT]=             CF_CHANGES_DATA;
   sql_command_flags[SQLCOM_GRANT_ROLE]=        CF_CHANGES_DATA;
   sql_command_flags[SQLCOM_REVOKE]=            CF_CHANGES_DATA;
@@ -416,6 +417,7 @@ void init_update_queries(void)
   sql_command_flags[SQLCOM_CREATE_USER]|=       CF_AUTO_COMMIT_TRANS;
   sql_command_flags[SQLCOM_DROP_USER]|=         CF_AUTO_COMMIT_TRANS;
   sql_command_flags[SQLCOM_RENAME_USER]|=       CF_AUTO_COMMIT_TRANS;
+  sql_command_flags[SQLCOM_CREATE_ROLE]|=       CF_AUTO_COMMIT_TRANS;
   sql_command_flags[SQLCOM_REVOKE_ALL]=         CF_AUTO_COMMIT_TRANS;
   sql_command_flags[SQLCOM_REVOKE]|=            CF_AUTO_COMMIT_TRANS;
   sql_command_flags[SQLCOM_GRANT]|=             CF_AUTO_COMMIT_TRANS;
@@ -3753,6 +3755,12 @@ end_with_restore_list:
       my_ok(thd);
     break;
   }
+  case SQLCOM_CREATE_ROLE:
+  {
+    /* TODO */
+    my_ok(thd);
+    break;
+  }
   case SQLCOM_REVOKE_ALL:
   {
     if (check_access(thd, UPDATE_ACL, "mysql", NULL, NULL, 1, 1) &&

sql/sql_yacc.yy

@@ -2218,6 +2218,10 @@ create:
           {
             Lex->sql_command = SQLCOM_CREATE_USER;
           }
+        | CREATE ROLE_SYM clear_privileges role_list
+          {
+            Lex->sql_command = SQLCOM_CREATE_ROLE;
+          }
         | CREATE LOGFILE_SYM GROUP_SYM logfile_group_info 
           {
             Lex->alter_tablespace_info->ts_cmd_type= CREATE_LOGFILE_GROUP;
@@ -14319,6 +14323,12 @@ grant_command:
 
         ;
 
+role_list:
+          grant_role
+          {}
+        | role_list ',' grant_role
+          {}
+
 grant_role:
           IDENT_sys             {$$=$1;}
         | TEXT_STRING_sys       {$$=$1;}