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diff --git a/storage/innobase/include/dict0mem.inl b/storage/innobase/include/dict0mem.inl
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+/*****************************************************************************
+
+Copyright (c) 1996, 2015, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 2017, 2021, MariaDB Corporation.
+
+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; version 2 of the License.
+
+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.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
+
+*****************************************************************************/
+
+/******************************************************************//**
+@file include/dict0mem.ic
+Data dictionary memory object creation
+
+Created 1/8/1996 Heikki Tuuri
+***********************************************************************/
+
+#include "data0type.h"
+#include "dict0mem.h"
+#include "fil0fil.h"
+
+/**********************************************************************//**
+This function poplulates a dict_index_t index memory structure with
+supplied information. */
+UNIV_INLINE
+void
+dict_mem_fill_index_struct(
+/*=======================*/
+	dict_index_t*	index,		/*!< out: index to be filled */
+	mem_heap_t*	heap,		/*!< in: memory heap */
+	const char*	index_name,	/*!< in: index name */
+	ulint		type,		/*!< in: DICT_UNIQUE,
+					DICT_CLUSTERED, ... ORed */
+	ulint		n_fields)	/*!< in: number of fields */
+{
+
+	if (heap) {
+		index->heap = heap;
+		index->name = mem_heap_strdup(heap, index_name);
+		index->fields = (dict_field_t*) mem_heap_alloc(
+			heap, 1 + n_fields * sizeof(dict_field_t));
+	} else {
+		index->name = index_name;
+		index->heap = NULL;
+		index->fields = NULL;
+	}
+
+	index->type = type & ((1U << DICT_IT_BITS) - 1);
+	index->page = FIL_NULL;
+	index->merge_threshold = DICT_INDEX_MERGE_THRESHOLD_DEFAULT;
+	index->n_fields = static_cast<unsigned>(n_fields)
+		& index->MAX_N_FIELDS;
+	index->n_core_fields = static_cast<unsigned>(n_fields)
+		& index->MAX_N_FIELDS;
+	/* The '1 +' above prevents allocation
+	of an empty mem block */
+	index->nulls_equal = false;
+	ut_d(index->magic_n = DICT_INDEX_MAGIC_N);
+}