diff --git a/hypopg--2.0.0dev.sql b/hypopg--2.0.0dev.sql
new file mode 100644
index 0000000..946ad5b
--- /dev/null
+++ b/hypopg--2.0.0dev.sql
@@ -0,0 +1,60 @@
+-- This program is open source, licensed under the PostgreSQL License.
+-- For license terms, see the LICENSE file.
+--
+-- Copyright (C) 2015-2018: Julien Rouhaud
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION hypopg" to load this file. \quit
+
+SET client_encoding = 'UTF8';
+
+CREATE FUNCTION hypopg_reset()
+    RETURNS void
+    LANGUAGE C VOLATILE COST 100
+AS '$libdir/hypopg', 'hypopg_reset';
+
+CREATE FUNCTION
+hypopg_create_index(IN sql_order text, OUT indexrelid oid, OUT indexname text)
+    RETURNS SETOF record
+    LANGUAGE C STRICT VOLATILE COST 100
+AS '$libdir/hypopg', 'hypopg_create_index';
+
+CREATE FUNCTION
+hypopg_drop_index(IN indexid oid)
+    RETURNS bool
+    LANGUAGE C STRICT VOLATILE COST 100
+AS '$libdir/hypopg', 'hypopg_drop_index';
+
+CREATE FUNCTION hypopg(OUT indexname text, OUT indexrelid oid,
+                       OUT indrelid oid, OUT innatts integer,
+                       OUT indisunique boolean, OUT indkey int2vector,
+                       OUT indcollation oidvector, OUT indclass oidvector,
+                       OUT indoption oidvector, OUT indexprs pg_node_tree,
+                       OUT indpred pg_node_tree, OUT amid oid)
+    RETURNS SETOF record
+    LANGUAGE c COST 100
+AS '$libdir/hypopg', 'hypopg';
+
+CREATE FUNCTION hypopg_list_indexes(OUT indexrelid oid, OUT indexname text, OUT nspname name, OUT relname name, OUT amname name)
+    RETURNS SETOF record
+AS
+$_$
+    SELECT h.indexrelid, h.indexname, n.nspname, c.relname, am.amname
+    FROM hypopg() h
+    JOIN pg_class c ON c.oid = h.indrelid
+    JOIN pg_namespace n ON n.oid = c.relnamespace
+    JOIN pg_am am ON am.oid = h.amid
+$_$
+LANGUAGE sql;
+
+CREATE FUNCTION
+hypopg_relation_size(IN indexid oid)
+    RETURNS bigint
+LANGUAGE C STRICT VOLATILE COST 100
+AS '$libdir/hypopg', 'hypopg_relation_size';
+
+CREATE FUNCTION
+hypopg_get_indexdef(IN indexid oid)
+    RETURNS text
+LANGUAGE C STRICT VOLATILE COST 100
+AS '$libdir/hypopg', 'hypopg_get_indexdef';
diff --git a/hypopg.control b/hypopg.control
index 78e668a..4223a8d 100644
--- a/hypopg.control
+++ b/hypopg.control
@@ -1,6 +1,6 @@
 # hypopg extension
-comment = 'Hypothetical indexes for PostgreSQL'
-default_version = '1.1.1'
+comment = 'Hypothetical advisor for PostgreSQL'
+default_version = '2.0.0dev'
 module_pathname = '$libdir/hypopg'
 relocatable = true