Fix database hydration (#115)

* Add test showing invalid item from load

* Use content_hydrate instead of merge_jsonb

The problem is in the ordering of arguments
to content_hydrate; this shows true failures across
other hydrate tests

* Fix argument ordering in content_hydrate

* Update version to 0.6.3

* Update CHANGELOG

Author: lossyrob

CHANGELOG.md

@@ -1,6 +1,10 @@
 # Changelog
 
-## Unreleased
+## [v0.6.3]
+
+### Fixed
+
+- Fixed content_hydrate argument ordering which caused incorrect behavior in database hydration [#115](https://github.com/stac-utils/pgstac/pull/115)
 
 ### Added
 

pypgstac/pypgstac/migrations/pgstac.0.6.2-0.6.3.sql

@@ -0,0 +1,20 @@
+SET SEARCH_PATH to pgstac, public;
+drop function if exists "pgstac"."content_hydrate"(_base_item jsonb, _item jsonb, fields jsonb);
+
+set check_function_bodies = off;
+
+CREATE OR REPLACE FUNCTION pgstac.content_hydrate(_item jsonb, _base_item jsonb, fields jsonb DEFAULT '{}'::jsonb)
+ RETURNS jsonb
+ LANGUAGE sql
+ IMMUTABLE PARALLEL SAFE
+AS $function$
+    SELECT merge_jsonb(
+            jsonb_fields(_item, fields),
+            jsonb_fields(_base_item, fields)
+    );
+$function$
+;
+
+
+
+SELECT set_version('0.6.3');