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-rw-r--r--contrib/btree_gist/btree_gist--1.0.sql3
1 files changed, 3 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_gist--1.0.sql b/contrib/btree_gist/btree_gist--1.0.sql
index dd428995c18..c5c958753e3 100644
--- a/contrib/btree_gist/btree_gist--1.0.sql
+++ b/contrib/btree_gist/btree_gist--1.0.sql
@@ -1,5 +1,8 @@
/* contrib/btree_gist/btree_gist--1.0.sql */
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION btree_gist" to load this file. \quit
+
CREATE FUNCTION gbtreekey4_in(cstring)
RETURNS gbtreekey4
AS 'MODULE_PATHNAME', 'gbtreekey_in'