1 files changed, 58 insertions, 0 deletions
diff --git a/contrib/seg/seg--1.2--1.3.sql b/contrib/seg/seg--1.2--1.3.sql
new file mode 100644
index 0000000..578e989
--- /dev/null
+++ b/contrib/seg/seg--1.2--1.3.sql
@@ -0,0 +1,58 @@
+/* contrib/seg/seg--1.2--1.3.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION seg UPDATE TO '1.3'" to load this file. \quit
+
+--
+-- Get rid of unnecessary compress and decompress support functions.
+--
+-- To be allowed to drop the opclass entry for a support function,
+-- we must change the entry's dependency type from 'internal' to 'auto',
+-- as though it were a loose member of the opfamily rather than being
+-- bound into a particular opclass.  There's no SQL command for that,
+-- so fake it with a manual update on pg_depend.
+--
+DO LANGUAGE plpgsql
+$$
+DECLARE
+  my_schema pg_catalog.text := pg_catalog.quote_ident(pg_catalog.current_schema());
+  old_path pg_catalog.text := pg_catalog.current_setting('search_path');
+BEGIN
+-- for safety, transiently set search_path to just pg_catalog+pg_temp
+PERFORM pg_catalog.set_config('search_path', 'pg_catalog, pg_temp', true);
+
+UPDATE pg_catalog.pg_depend
+SET deptype = 'a'
+WHERE classid = 'pg_catalog.pg_amproc'::pg_catalog.regclass
+  AND objid =
+    (SELECT objid
+     FROM pg_catalog.pg_depend
+     WHERE classid = 'pg_catalog.pg_amproc'::pg_catalog.regclass
+       AND refclassid = 'pg_catalog.pg_proc'::pg_catalog.regclass
+       AND (refobjid = (my_schema || '.gseg_compress(internal)')::pg_catalog.regprocedure))
+  AND refclassid = 'pg_catalog.pg_opclass'::pg_catalog.regclass
+  AND deptype = 'i';
+
+UPDATE pg_catalog.pg_depend
+SET deptype = 'a'
+WHERE classid = 'pg_catalog.pg_amproc'::pg_catalog.regclass
+  AND objid =
+    (SELECT objid
+     FROM pg_catalog.pg_depend
+     WHERE classid = 'pg_catalog.pg_amproc'::pg_catalog.regclass
+       AND refclassid = 'pg_catalog.pg_proc'::pg_catalog.regclass
+       AND (refobjid = (my_schema || '.gseg_decompress(internal)')::pg_catalog.regprocedure))
+  AND refclassid = 'pg_catalog.pg_opclass'::pg_catalog.regclass
+  AND deptype = 'i';
+
+PERFORM pg_catalog.set_config('search_path', old_path, true);
+END
+$$;
+
+ALTER OPERATOR FAMILY gist_seg_ops USING gist drop function 3 (seg);
+ALTER EXTENSION seg DROP function gseg_compress(pg_catalog.internal);
+DROP function gseg_compress(pg_catalog.internal);
+
+ALTER OPERATOR FAMILY gist_seg_ops USING gist drop function 4 (seg);
+ALTER EXTENSION seg DROP function gseg_decompress(pg_catalog.internal);
+DROP function gseg_decompress(pg_catalog.internal);