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backend/database/migrations/006_add_afkir_column.sql

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+-- Migration: Add afkir column
+-- Date: 2026-04-19
+-- Description: Adds afkir (culled chickens) column to mortality_records
+
+-- Add new column (safe: idempotent, non-destructive)
+ALTER TABLE mortality_records
+ADD COLUMN IF NOT EXISTS afkir INTEGER DEFAULT 0;
+
+-- Optional: Add comment for documentation
+COMMENT ON COLUMN mortality_records.afkir IS 'Daily culled chickens count (removed due to poor quality)';