Alter 'container' column type to entityid.

Author: labkey-bpatel

OConnor/resources/schemas/dbscripts/postgresql/oconnor-26.000-26.001.sql

@@ -3,17 +3,63 @@ DO $$
 rec RECORD;
 BEGIN
 FOR rec IN
-SELECT table_name, column_name
-FROM information_schema.columns
-WHERE table_schema = 'oconnor'
-  AND lower(column_name) IN ('createdby',
-                             'modifiedby')
-  AND data_type = 'smallint'
+SELECT c.table_name, c.column_name
+FROM information_schema.columns c
+         JOIN information_schema.tables t ON t.table_schema = c.table_schema AND t.table_name = c.table_name
+WHERE c.table_schema = 'oconnor'
+  AND t.table_type = 'BASE TABLE'
+  AND lower(c.column_name) IN ('createdby',
+                               'modifiedby')
+  AND c.data_type = 'smallint'
     LOOP
           EXECUTE format(
               'ALTER TABLE oconnor.%I ALTER COLUMN %I
   TYPE userid',
               rec.table_name, rec.column_name
           );
 END LOOP;
+END $$;
+
+DO $$
+  DECLARE
+rec RECORD;
+    view_rec RECORD;
+BEGIN
+    -- Save view definitions and drop all views in oconnor schema to clear dependencies
+    CREATE TEMP TABLE _oconnor_view_defs (viewname text, definition text);
+
+FOR view_rec IN
+SELECT viewname, definition
+FROM pg_views
+WHERE schemaname = 'oconnor'
+    LOOP
+INSERT INTO _oconnor_view_defs VALUES (view_rec.viewname, view_rec.definition);
+EXECUTE format('DROP VIEW IF EXISTS oconnor.%I CASCADE', view_rec.viewname);
+END LOOP;
+
+    -- Alter container columns on base tables
+FOR rec IN
+SELECT c.table_name, c.column_name
+FROM information_schema.columns c
+         JOIN information_schema.tables t ON t.table_schema = c.table_schema AND t.table_name = c.table_name
+WHERE c.table_schema = 'oconnor'
+  AND t.table_type = 'BASE TABLE'
+  AND lower(c.column_name) = 'container'
+  AND c.data_type = 'character varying'
+    LOOP
+        EXECUTE format(
+            'ALTER TABLE oconnor.%I ALTER COLUMN %I
+  TYPE entityid',
+            rec.table_name, rec.column_name
+        );
+END LOOP;
+
+    -- Recreate views from saved definitions
+FOR view_rec IN
+SELECT viewname, definition FROM _oconnor_view_defs
+    LOOP
+    EXECUTE format('CREATE OR REPLACE VIEW oconnor.%I AS %s', view_rec.viewname, view_rec.definition);
+END LOOP;
+
+DROP TABLE _oconnor_view_defs;
 END $$;