Index: gnunet-0.11.7/src/pq/pq.h
===================================================================
--- /dev/null
+++ gnunet-0.11.7/src/pq/pq.h
@@ -0,0 +1,57 @@
+/*
+   This file is part of GNUnet
+   Copyright (C) 2017, 2019 GNUnet e.V.
+
+   GNUnet is free software: you can redistribute it and/or modify it
+   under the terms of the GNU Affero General Public License as published
+   by the Free Software Foundation, either version 3 of the License,
+   or (at your option) any later version.
+
+   GNUnet 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
+   Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/**
+ * @file pq/pq.h
+ * @brief shared internal data structures of libgnunetpq
+ * @author Christian Grothoff
+ */
+#ifndef PQ_H
+#define PQ_H
+
+#include "gnunet_util_lib.h"
+#include "gnunet_pq_lib.h"
+
+/**
+ * Handle to Postgres database.
+ */
+struct GNUNET_PQ_Context
+{
+  /**
+   * Actual connection.
+   */
+  PGconn *conn;
+
+  /**
+   * Statements to execute upon connection.
+   */
+  struct GNUNET_PQ_ExecuteStatement *es;
+
+  /**
+   * Prepared statements.
+   */
+  struct GNUNET_PQ_PreparedStatement *ps;
+
+  /**
+   * Configuration to use to connect to the DB.
+   */
+  char *config_str;
+};
+
+#endif
Index: gnunet-0.11.7/src/pq/Makefile.am
===================================================================
--- gnunet-0.11.7.orig/src/pq/Makefile.am
+++ gnunet-0.11.7/src/pq/Makefile.am
@@ -11,6 +11,7 @@ endif
 
 libgnunetpq_la_SOURCES = \
   pq.c \
+  pq.h \
   pq_connect.c \
   pq_eval.c \
   pq_exec.c \
Index: gnunet-0.11.7/src/pq/Makefile.in
===================================================================
--- gnunet-0.11.7.orig/src/pq/Makefile.in
+++ gnunet-0.11.7/src/pq/Makefile.in
@@ -641,6 +641,7 @@ AM_CPPFLAGS = -I$(top_srcdir)/src/includ
 @HAVE_POSTGRESQL_TRUE@lib_LTLIBRARIES = libgnunetpq.la
 libgnunetpq_la_SOURCES = \
   pq.c \
+  pq.h \
   pq_connect.c \
   pq_eval.c \
   pq_exec.c \