MDEV-13302 Avoid using LEX::spname during CREATE PROCEDURE and CREATE FUNCTION

sql/sp.cc

@@ -470,7 +470,8 @@ static TABLE *open_proc_table_for_update(THD *thd)
 */
 
 static int
-db_find_routine_aux(THD *thd, stored_procedure_type type, const sp_name *name,
+db_find_routine_aux(THD *thd, stored_procedure_type type,
+                    const Database_qualified_name *name,
                     TABLE *table)
 {
   uchar key[MAX_KEY_LENGTH];	// db, name, optional key length type
@@ -969,7 +970,7 @@ sp_returns_type(THD *thd, String &result, sp_head *sp)
 */
 static int
 sp_drop_routine_internal(THD *thd, stored_procedure_type type,
-                         const sp_name *name, TABLE *table)
+                         const Database_qualified_name *name, TABLE *table)
 {
   DBUG_ENTER("sp_drop_routine_internal");
 
@@ -1079,11 +1080,11 @@ sp_create_routine(THD *thd, stored_procedure_type type, sp_head *sp)
   else
   {
     /* Checking if the routine already exists */
-    if (db_find_routine_aux(thd, type, lex->spname, table) == SP_OK)
+    if (db_find_routine_aux(thd, type, sp, table) == SP_OK)
     {
       if (lex->create_info.or_replace())
       {
-        if ((ret= sp_drop_routine_internal(thd, type, lex->spname, table)))
+        if ((ret= sp_drop_routine_internal(thd, type, sp, table)))
           goto done;
       }
       else if (lex->create_info.if_not_exists())
@@ -1092,7 +1093,7 @@ sp_create_routine(THD *thd, stored_procedure_type type, sp_head *sp)
                             ER_SP_ALREADY_EXISTS,
                             ER_THD(thd, ER_SP_ALREADY_EXISTS),
                             SP_TYPE_STRING(type),
-                            lex->spname->m_name.str);
+                            sp->m_name.str);
 
         ret= FALSE;
 

sql/sp_cache.cc

@@ -189,7 +189,7 @@ void sp_cache_insert(sp_cache **cp, sp_head *sp)
     NULL if the routine not found.
 */
 
-sp_head *sp_cache_lookup(sp_cache **cp, const sp_name *name)
+sp_head *sp_cache_lookup(sp_cache **cp, const Database_qualified_name *name)
 {
   char buf[NAME_LEN * 2 + 2];
   sp_cache *c= *cp;

sql/sp_cache.h

@@ -32,7 +32,7 @@
 
 class sp_head;
 class sp_cache;
-class sp_name;
+class Database_qualified_name;
 
 /*
   Cache usage scenarios:
@@ -59,7 +59,7 @@ void sp_cache_init();
 void sp_cache_end();
 void sp_cache_clear(sp_cache **cp);
 void sp_cache_insert(sp_cache **cp, sp_head *sp);
-sp_head *sp_cache_lookup(sp_cache **cp, const sp_name *name);
+sp_head *sp_cache_lookup(sp_cache **cp, const Database_qualified_name *name);
 void sp_cache_invalidate();
 void sp_cache_flush_obsolete(sp_cache **cp, sp_head **sp);
 ulong sp_cache_version();

sql/sql_parse.cc

@@ -2935,8 +2935,8 @@ static int mysql_create_routine(THD *thd, LEX *lex)
   /* Checking the drop permissions if CREATE OR REPLACE is used */
   if (lex->create_info.or_replace())
   {
-    if (check_routine_access(thd, ALTER_PROC_ACL, lex->spname->m_db.str,
-                             lex->spname->m_name.str,
+    if (check_routine_access(thd, ALTER_PROC_ACL, lex->sphead->m_db.str,
+                             lex->sphead->m_name.str,
                              lex->sql_command == SQLCOM_DROP_PROCEDURE, 0))
       return true;
   }

sql/sql_yacc.yy

@@ -16664,7 +16664,6 @@ sf_tail:
             if (!Lex->make_sp_head_no_recursive(thd, $1, $2,
                                                 TYPE_ENUM_FUNCTION))
               MYSQL_YYABORT;
-            Lex->spname= $2;
           }
           sp_parenthesized_fdparam_list
           sf_return_type
@@ -16700,7 +16699,6 @@ sp_tail:
             if (!Lex->make_sp_head_no_recursive(thd, $1, $2,
                                                 TYPE_ENUM_PROCEDURE))
               MYSQL_YYABORT;
-            Lex->spname= $2;
           }
           sp_parenthesized_pdparam_list
           sp_c_chistics

sql/sql_yacc_ora.yy

@@ -16903,7 +16903,6 @@ sf_tail:
             if (!Lex->make_sp_head_no_recursive(thd, $1, $2,
                                                 TYPE_ENUM_FUNCTION))
               MYSQL_YYABORT;
-            Lex->spname= $2;
           }
           opt_sp_parenthesized_fdparam_list
           sf_return_type
@@ -16942,7 +16941,6 @@ sp_tail:
             if (!Lex->make_sp_head_no_recursive(thd, $1, $2,
                                                 TYPE_ENUM_PROCEDURE))
               MYSQL_YYABORT;
-            Lex->spname= $2;
           }
           opt_sp_parenthesized_pdparam_list
           sp_c_chistics