diff -Nru kexi-3.1.0/debian/changelog kexi-3.1.0/debian/changelog
--- kexi-3.1.0/debian/changelog	2018-09-03 04:53:29.000000000 +0000
+++ kexi-3.1.0/debian/changelog	2018-11-04 16:14:23.000000000 +0000
@@ -1,3 +1,11 @@
+kexi (1:3.1.0-4) unstable; urgency=medium
+
+  * Backport upstream commit 54b2bcfb2ff1af6e7cbf7bdd60aef3d7c50b2785 to find
+    PostgreSQL 11; patch upstream_cmake-find-PostgreSQL-11.patch.
+    (Closes: #912157)
+
+ -- Pino Toscano <pino@debian.org>  Sun, 04 Nov 2018 17:14:23 +0100
+
 kexi (1:3.1.0-3) unstable; urgency=medium
 
   * Update package descriptions according to the upstream feedback.
diff -Nru kexi-3.1.0/debian/patches/series kexi-3.1.0/debian/patches/series
--- kexi-3.1.0/debian/patches/series	2018-09-03 04:31:06.000000000 +0000
+++ kexi-3.1.0/debian/patches/series	2018-11-04 15:44:19.000000000 +0000
@@ -1,2 +1,3 @@
 upstream_Fix-build-with-Qt-5.11-missing-headers.patch
 upstream_Install-the-application-icons.patch
+upstream_cmake-find-PostgreSQL-11.patch
diff -Nru kexi-3.1.0/debian/patches/upstream_cmake-find-PostgreSQL-11.patch kexi-3.1.0/debian/patches/upstream_cmake-find-PostgreSQL-11.patch
--- kexi-3.1.0/debian/patches/upstream_cmake-find-PostgreSQL-11.patch	1970-01-01 00:00:00.000000000 +0000
+++ kexi-3.1.0/debian/patches/upstream_cmake-find-PostgreSQL-11.patch	2018-11-04 15:44:07.000000000 +0000
@@ -0,0 +1,25 @@
+From 54b2bcfb2ff1af6e7cbf7bdd60aef3d7c50b2785 Mon Sep 17 00:00:00 2001
+From: Pino Toscano <pino@kde.org>
+Date: Tue, 22 May 2018 18:48:03 +0200
+Subject: [PATCH] cmake: find PostgreSQL 11
+
+---
+ cmake/modules/FindPostgreSQL.cmake | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/cmake/modules/FindPostgreSQL.cmake b/cmake/modules/FindPostgreSQL.cmake
+index 039c38000..56e6e56e8 100644
+--- a/cmake/modules/FindPostgreSQL.cmake
++++ b/cmake/modules/FindPostgreSQL.cmake
+@@ -86,7 +86,7 @@ set(PostgreSQL_LIBRARY_DIR_MESSAGE "Set the PostgreSQL_LIBRARY_DIR cmake cache e
+ set(PostgreSQL_ROOT_DIR_MESSAGE "Set the PostgreSQL_ROOT system variable to where PostgreSQL is found on the machine E.g C:/Program Files/PostgreSQL/8.4")
+ 
+ set(PostgreSQL_KNOWN_VERSIONS ${PostgreSQL_ADDITIONAL_VERSIONS}
+-    "10" "9.6" "9.5" "9.4" "9.3" "9.2" "9.1" "9.0" "8.4" "8.3" "8.2" "8.1" "8.0")
++    "11" "10" "9.6" "9.5" "9.4" "9.3" "9.2" "9.1" "9.0" "8.4" "8.3" "8.2" "8.1" "8.0")
+ 
+ # Define additional search paths for root directories.
+ foreach (suffix ${PostgreSQL_KNOWN_VERSIONS} )
+-- 
+2.19.1
+