Update contrib/seg for new scalarlesel/scalargesel selectivity functions.

I somehow missed this module in commit 7d08ce28.

contrib/seg/Makefile

@@ -4,7 +4,8 @@ MODULE_big = seg
 OBJS = seg.o segparse.o $(WIN32RES)
 
 EXTENSION = seg
-DATA = seg--1.1.sql seg--1.0--1.1.sql seg--unpackaged--1.0.sql
+DATA = seg--1.1.sql seg--1.1--1.2.sql \
+	seg--1.0--1.1.sql seg--unpackaged--1.0.sql
 PGFILEDESC = "seg - line segment data type"
 
 REGRESS = seg

contrib/seg/seg--1.1--1.2.sql

+/* contrib/seg/seg--1.1--1.2.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION seg UPDATE TO '1.2'" to load this file. \quit
+
+ALTER OPERATOR <= (seg, seg) SET (
+	RESTRICT = scalarlesel,
+	JOIN = scalarlejoinsel
+);
+
+ALTER OPERATOR >= (seg, seg) SET (
+	RESTRICT = scalargesel,
+	JOIN = scalargejoinsel
+);

contrib/seg/seg.control

 # seg extension
 comment = 'data type for representing line segments or floating-point intervals'
-default_version = '1.1'
+default_version = '1.2'
 module_pathname = '$libdir/seg'
 relocatable = true