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diff --git a/storage/innobase/include/fts0priv.inl b/storage/innobase/include/fts0priv.inl
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+++ b/storage/innobase/include/fts0priv.inl
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+/*****************************************************************************
+
+Copyright (c) 2011, 2016, Oracle and/or its affiliates. All Rights Reserved.
+
+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/fts0priv.ic
+Full text search internal header file
+
+Created 2011/11/12 Sunny Bains
+***********************************************************************/
+
+/******************************************************************//**
+Write the table id to the given buffer (including final NUL). Buffer must be
+at least FTS_AUX_MIN_TABLE_ID_LENGTH bytes long.
+@return number of bytes written */
+UNIV_INLINE
+int
+fts_write_object_id(
+/*================*/
+	ib_id_t		id,		/* in: a table/index id */
+	char*		str)		/* in: buffer to write the id to */
+{
+
+#ifdef _WIN32
+
+	DBUG_EXECUTE_IF("innodb_test_wrong_non_windows_fts_aux_table_name",
+			return(sprintf(str, UINT64PFx, id)););
+
+	/* Use this to construct old(5.6.14 and 5.7.3) windows
+	ambiguous aux table names */
+	DBUG_EXECUTE_IF("innodb_test_wrong_fts_aux_table_name",
+			return(sprintf(str, "%016llu", (ulonglong) id)););
+
+#else /* _WIN32 */
+
+	/* Use this to construct old(5.6.14 and 5.7.3) windows
+	ambiguous aux table names */
+	DBUG_EXECUTE_IF("innodb_test_wrong_windows_fts_aux_table_name",
+			return(sprintf(str, "%016llu", (ulonglong) id)););
+
+	DBUG_EXECUTE_IF("innodb_test_wrong_fts_aux_table_name",
+			return(sprintf(str, "%016llx", (ulonglong) id)););
+
+#endif /* _WIN32 */
+
+	return(sprintf(str, "%016llx", (ulonglong) id));
+}
+
+/******************************************************************//**
+Read the table id from the string generated by fts_write_object_id().
+@return TRUE if parse successful */
+UNIV_INLINE
+ibool
+fts_read_object_id(
+/*===============*/
+	ib_id_t*	id,		/* out: an id */
+	const char*	str)		/* in: buffer to read from */
+{
+	/* NOTE: this func doesn't care about whether current table
+	is set with HEX_NAME, the user of the id read here will check
+	if the id is HEX or DEC and do the right thing with it. */
+	return(sscanf(str, UINT64PFx, id) == 1);
+}
+
+/******************************************************************//**
+Compare two fts_trx_table_t instances.
+@return < 0 if n1 < n2, 0 if n1 == n2, > 0 if n1 > n2 */
+UNIV_INLINE
+int
+fts_trx_table_cmp(
+/*==============*/
+	const void*	p1,			/*!< in: id1 */
+	const void*	p2)			/*!< in: id2 */
+{
+	const dict_table_t*	table1
+		= (*static_cast<const fts_trx_table_t* const*>(p1))->table;
+
+	const dict_table_t*	table2
+		= (*static_cast<const fts_trx_table_t* const*>(p2))->table;
+
+	return((table1->id > table2->id)
+	       ? 1
+	       : (table1->id == table2->id)
+		  ? 0
+		  : -1);
+}
+
+/******************************************************************//**
+Compare a table id with a fts_trx_table_t table id.
+@return < 0 if n1 < n2, 0 if n1 == n2,> 0 if n1 > n2 */
+UNIV_INLINE
+int
+fts_trx_table_id_cmp(
+/*=================*/
+	const void*	p1,			/*!< in: id1 */
+	const void*	p2)			/*!< in: id2 */
+{
+	const uintmax_t*	table_id = static_cast<const uintmax_t*>(p1);
+	const dict_table_t*	table2
+		= (*static_cast<const fts_trx_table_t* const*>(p2))->table;
+
+	return((*table_id > table2->id)
+	       ? 1
+	       : (*table_id == table2->id)
+		  ? 0
+		  : -1);
+}