From ca56f11dc64cf626755dfff9c712446d59fa1603 Mon Sep 17 00:00:00 2001
From: Pawel Chmielowski <pawel@process-one.net>
Date: Fri, 27 Feb 2026 09:46:18 +0100
Subject: [PATCH] Add abilty to mark that column can be null in e_sql_schema

---
 include/ejabberd_sql.hrl    | 1 +
 src/ejabberd_sql_schema.erl | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/ejabberd_sql.hrl b/include/ejabberd_sql.hrl
index 1c46b7131..f3d7a1e33 100644
--- a/include/ejabberd_sql.hrl
+++ b/include/ejabberd_sql.hrl
@@ -51,6 +51,7 @@
                     meta = #{}}).
 -record(sql_column, {name :: binary(),
                      type,
+                     nullable = false,
                      default = false,
                      opts = []}).
 -record(sql_table, {name :: binary(),
diff --git a/src/ejabberd_sql_schema.erl b/src/ejabberd_sql_schema.erl
index 1ed3c610e..f9f36588b 100644
--- a/src/ejabberd_sql_schema.erl
+++ b/src/ejabberd_sql_schema.erl
@@ -526,7 +526,10 @@ format_column_def(SchemaInfo, Column) ->
     [<<"    ">>,
      escape_name(SchemaInfo, Column#sql_column.name), <<" ">>,
      format_type(SchemaInfo, Column),
-     <<" NOT NULL">>,
+     case Column#sql_column.nullable of
+         false -> <<" NOT NULL">>;
+         true -> []
+     end,
      case Column#sql_column.default of
          false -> [];
          true ->