Add forgotten header file

include/ejabberd_sql.hrl

@@ -0,0 +1,41 @@
+%%%----------------------------------------------------------------------
+%%%
+%%% ejabberd, Copyright (C) 2002-2019   ProcessOne
+%%%
+%%% 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; either version 2 of the
+%%% License, or (at your option) any later version.
+%%%
+%%% 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 02110-1301 USA.
+%%%
+%%%----------------------------------------------------------------------
+-define(SQL_MARK, sql__mark_).
+-define(SQL(SQL), ?SQL_MARK(SQL)).
+
+-define(SQL_UPSERT_MARK, sql_upsert__mark_).
+-define(SQL_UPSERT(Host, Table, Fields),
+        ejabberd_sql:sql_query(Host, ?SQL_UPSERT_MARK(Table, Fields))).
+-define(SQL_UPSERT_T(Table, Fields),
+        ejabberd_sql:sql_query_t(?SQL_UPSERT_MARK(Table, Fields))).
+
+-define(SQL_INSERT_MARK, sql_insert__mark_).
+-define(SQL_INSERT(Table, Fields), ?SQL_INSERT_MARK(Table, Fields)).
+
+-record(sql_query, {hash :: binary(),
+		    format_query :: fun(),
+		    format_res :: fun(),
+		    args :: fun(),
+		    loc :: {module(), pos_integer()}}).
+
+-record(sql_escape, {string :: fun((binary()) -> binary()),
+		     integer :: fun((integer()) -> binary()),
+		     boolean :: fun((boolean()) -> binary()),
+		     in_array_string :: fun((binary()) -> binary())}).