diff --git a/htdocs/install/mysql/migration/11.0.0-12.0.0.sql b/htdocs/install/mysql/migration/11.0.0-12.0.0.sql
index e1a69a1facc..82a0f11e893 100644
--- a/htdocs/install/mysql/migration/11.0.0-12.0.0.sql
+++ b/htdocs/install/mysql/migration/11.0.0-12.0.0.sql
@@ -250,7 +250,10 @@ INSERT INTO llx_c_ticket_resolution (code, pos, label, active, use_default, desc
 
 DELETE FROM llx_const WHERE name = __ENCRYPT('DONATION_ART885')__;
 
-ALTER TABLE llx_extrafields MODIFY COLUMN printable integer DEFAULT 0;
+-- VMYSQL4.1 ALTER TABLE llx_extrafields MODIFY COLUMN printable integer DEFAULT 0;
+-- VPGSQL8.2 ALTER TABLE llx_extrafields ALTER COLUMN printable DROP DEFAULT;
+-- VPGSQL8.2 ALTER TABLE llx_extrafields MODIFY COLUMN printable integer USING printable::integer;
+-- VPGSQL8.2 ALTER TABLE llx_extrafields ALTER COLUMN printable SET DEFAULT 0;
 ALTER TABLE llx_extrafields ADD COLUMN printable integer DEFAULT 0;
 
 UPDATE llx_const SET name = 'INVOICE_USE_RETAINED_WARRANTY' WHERE name = 'INVOICE_USE_SITUATION_RETAINED_WARRANTY';