Merge 10.2 into 10.3

mysql-test/suite/federated/rpl.test

+source have_federatedx.inc;
 source include/have_binlog_format_row.inc;
 source include/master-slave.inc;
 

mysql-test/suite/innodb/r/page_reorganize.result

@@ -25,3 +25,10 @@ f1
 disconnect con1;
 connection default;
 drop table t1;
+#
+# MDEV-27993 Assertion failed in btr_page_reorganize_low()
+#
+CREATE TABLE t1(a INT PRIMARY KEY, b INT UNIQUE) ENGINE=InnoDB;
+SET DEBUG_DBUG = '+d,do_page_reorganize';
+INSERT INTO t1 VALUES(0,0);
+DROP TABLE t1;

mysql-test/suite/innodb/t/page_reorganize.test

@@ -53,4 +53,12 @@ connection default;
 
 drop table t1;
 
+--echo #
+--echo # MDEV-27993 Assertion failed in btr_page_reorganize_low()
+--echo #
+CREATE TABLE t1(a INT PRIMARY KEY, b INT UNIQUE) ENGINE=InnoDB;
+SET DEBUG_DBUG = '+d,do_page_reorganize';
+INSERT INTO t1 VALUES(0,0);
+DROP TABLE t1;
+
 --source include/wait_until_count_sessions.inc

scripts/mysql_install_db.sh

@@ -483,10 +483,11 @@ then
   args="$args --user=$user"
 fi
 
-if test -n "$group"
-then
-  args="$args --group=$group"
-fi
+#To be enabled if/when we enable --group as an option to mysqld
+#if test -n "$group"
+#then
+#  args="$args --group=$group"
+#fi
 
 # When doing a "cross bootstrap" install, no reference to the current
 # host should be added to the system tables.  So we filter out any

scripts/mysqld_safe.sh

@@ -694,6 +694,7 @@ then
   if test "$user" != "root" -o $SET_USER = 1
   then
     USER_OPTION="--user=$user"
+    # To be used if/when we enable --system-group as an option to mysqld
     GROUP_OPTION="--group=$group"
   fi
   if test -n "$open_files"

sql/item_func.cc

 /* Copyright (c) 2000, 2015, Oracle and/or its affiliates.
-   Copyright (c) 2009, 2020, MariaDB
+   Copyright (c) 2009, 2022, MariaDB
 
    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
@@ -3290,6 +3290,7 @@ udf_handler::fix_fields(THD *thd, Item_func_or_sum *func,
 	  thd->alloc(f_args.arg_count*sizeof(Item_result))))
 
     {
+    err_exit:
       free_udf(u_d);
       DBUG_RETURN(TRUE);
     }
@@ -3327,7 +3328,8 @@ udf_handler::fix_fields(THD *thd, Item_func_or_sum *func,
       func->used_tables_and_const_cache_join(item);
       f_args.arg_type[i]=item->result_type();
     }
-    if (!(buffers=new (thd->mem_root) String[arg_count]) ||
+    buffers=new (thd->mem_root) String[arg_count];
+    if (!buffers ||
         !multi_alloc_root(thd->mem_root,
                           &f_args.args,              arg_count * sizeof(char *),
                           &f_args.lengths,           arg_count * sizeof(long),
@@ -3336,10 +3338,7 @@ udf_handler::fix_fields(THD *thd, Item_func_or_sum *func,
                           &f_args.attributes,        arg_count * sizeof(char *),
                           &f_args.attribute_lengths, arg_count * sizeof(long),
                           NullS))
-    {
-      free_udf(u_d);
-      DBUG_RETURN(TRUE);
-    }
+      goto err_exit;
   }
   if (func->fix_length_and_dec())
     DBUG_RETURN(TRUE);
@@ -3407,8 +3406,7 @@ udf_handler::fix_fields(THD *thd, Item_func_or_sum *func,
     {
       my_error(ER_CANT_INITIALIZE_UDF, MYF(0),
                u_d->name.str, init_msg_buff);
-      free_udf(u_d);
-      DBUG_RETURN(TRUE);
+      goto err_exit;
     }
     func->max_length=MY_MIN(initid.max_length,MAX_BLOB_WIDTH);
     func->maybe_null=initid.maybe_null;

storage/innobase/btr/btr0cur.cc

@@ -3,7 +3,7 @@
 Copyright (c) 1994, 2019, Oracle and/or its affiliates. All Rights Reserved.
 Copyright (c) 2008, Google Inc.
 Copyright (c) 2012, Facebook Inc.
-Copyright (c) 2015, 2021, MariaDB Corporation.
+Copyright (c) 2015, 2022, MariaDB Corporation.
 
 Portions of this file contain modifications contributed and copyrighted by
 Google, Inc. Those modifications are gratefully acknowledged and are described
@@ -3428,6 +3428,7 @@ btr_cur_optimistic_insert(
 		 << ib::hex(thr ? thr->graph->trx->id : 0)
 		 << ' ' << rec_printer(entry).str());
 	DBUG_EXECUTE_IF("do_page_reorganize",
+			if (n_recs)
 			btr_page_reorganize(page_cursor, index, mtr););
 
 	/* Now, try the insert */