From ebf37ace00920290a282dcb6393215266a4adef4 Mon Sep 17 00:00:00 2001
From: Madis Spiegel <95636644+SpiegelMadis@users.noreply.github.com>
Date: Tue, 26 May 2026 10:48:37 +0300
Subject: [PATCH] Ordering of constraints for pg17+

Added basic ordering as PG > 17 does not allow dropping not null constraints on PK columns.
---
 skytools/dbstruct.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/skytools/dbstruct.py b/skytools/dbstruct.py
index fe9a0fd..0e35f27 100644
--- a/skytools/dbstruct.py
+++ b/skytools/dbstruct.py
@@ -112,6 +112,7 @@ class TConstraint(TElem):
             c.conrelid = i.indrelid AND
             c.conname = (SELECT r.relname FROM pg_class r WHERE r.oid = i.indexrelid)
           WHERE c.conrelid = %(oid)s AND c.contype != 'f'
+          ORDER BY CASE c.contype WHEN 'p' THEN 1 ELSE 0 END
     """
 
     table_name: str