Release v2.2.3: migration 138 integer compatibility hotfix

RELEASE_NOTES_v2.2.3.md

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+# BMC Hub v2.2.3 - Migration Hotfix
+
+**Release Date:** 22. februar 2026
+
+## 🛠️ Hotfix
+
+### Migration 138 compatibility fix
+- Fixed `migrations/138_customers_economic_unique_constraint.sql` for environments where `customers.economic_customer_number` is numeric (`integer`).
+- Removed unconditional `btrim(...)` usage on non-text columns.
+- Added type-aware normalization logic that only applies trimming for text-like column types.
+
+## ✅ Impact
+
+- Migration `138_customers_economic_unique_constraint.sql` now runs on both numeric and text column variants without `function btrim(integer) does not exist` errors.
+- Unique index safety behavior and duplicate detection are unchanged.

VERSION

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-2.2.2
+2.2.3

migrations/138_customers_economic_unique_constraint.sql

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 -- Migration: Enforce unique economic customer number on customers
 -- Prevents ambiguous mapping during e-conomic sync
 
--- Normalize values before uniqueness check
-UPDATE customers
-SET economic_customer_number = NULL
-WHERE economic_customer_number IS NOT NULL
-  AND btrim(economic_customer_number) = '';
+-- Normalize values before uniqueness check (only for text-like columns)
+DO $$
+DECLARE
+        column_data_type TEXT;
+BEGIN
+        SELECT data_type
+        INTO column_data_type
+        FROM information_schema.columns
+        WHERE table_schema = 'public'
+            AND table_name = 'customers'
+            AND column_name = 'economic_customer_number';
 
-UPDATE customers
-SET economic_customer_number = btrim(economic_customer_number)
-WHERE economic_customer_number IS NOT NULL;
+        IF column_data_type IN ('character varying', 'character', 'text') THEN
+                EXECUTE $$
+                        UPDATE customers
+                        SET economic_customer_number = NULL
+                        WHERE economic_customer_number IS NOT NULL
+                            AND btrim(economic_customer_number) = ''
+                $$;
+
+                EXECUTE $$
+                        UPDATE customers
+                        SET economic_customer_number = btrim(economic_customer_number)
+                        WHERE economic_customer_number IS NOT NULL
+                $$;
+        END IF;
+END $$;
 
 -- Abort migration if duplicates exist (must be manually resolved first)
 DO $$