From af5f3dc7d4e25c2691a82d179936598b55fa8e3c Mon Sep 17 00:00:00 2001
From: Adnan Zahir <adnanzaidanz@gmail.com>
Date: Sat, 25 Apr 2026 14:59:56 +0700
Subject: [PATCH] feat: update numeric tolerance for fcr

---
 ...5145831_fix_recording_numeric_precision.down.sql | 11 +++++++++++
 ...425145831_fix_recording_numeric_precision.up.sql | 13 +++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 internal/database/migrations/20260425145831_fix_recording_numeric_precision.down.sql
 create mode 100644 internal/database/migrations/20260425145831_fix_recording_numeric_precision.up.sql

diff --git a/internal/database/migrations/20260425145831_fix_recording_numeric_precision.down.sql b/internal/database/migrations/20260425145831_fix_recording_numeric_precision.down.sql
new file mode 100644
index 00000000..2801155d
--- /dev/null
+++ b/internal/database/migrations/20260425145831_fix_recording_numeric_precision.down.sql
@@ -0,0 +1,11 @@
+BEGIN;
+
+-- Revert fcr_value and cum_depletion_rate back to NUMERIC(7,3).
+-- WARNING: any value with an integer part > 9999 (e.g. high-FCR early-laying recordings)
+-- will fail the cast and must be cleared first, or this rollback will error.
+
+ALTER TABLE recordings
+    ALTER COLUMN fcr_value          TYPE NUMERIC(7,3) USING fcr_value::NUMERIC(7,3),
+    ALTER COLUMN cum_depletion_rate TYPE NUMERIC(7,3) USING cum_depletion_rate::NUMERIC(7,3);
+
+COMMIT;
diff --git a/internal/database/migrations/20260425145831_fix_recording_numeric_precision.up.sql b/internal/database/migrations/20260425145831_fix_recording_numeric_precision.up.sql
new file mode 100644
index 00000000..a084184a
--- /dev/null
+++ b/internal/database/migrations/20260425145831_fix_recording_numeric_precision.up.sql
@@ -0,0 +1,13 @@
+BEGIN;
+
+-- fcr_value and cum_depletion_rate were created as NUMERIC(7,3) (max integer part: 9999).
+-- Early-laying flocks produce very few eggs relative to total feed consumed, so
+-- FCR = usageInGrams / totalEggWeightGrams can legitimately exceed 9999 (e.g. ~31 740).
+-- Widening to NUMERIC(15,3) keeps the same 3-decimal-place scale and is
+-- fully backward-compatible: no existing value will be truncated or altered.
+
+ALTER TABLE recordings
+    ALTER COLUMN fcr_value          TYPE NUMERIC(15,3) USING fcr_value::NUMERIC(15,3),
+    ALTER COLUMN cum_depletion_rate TYPE NUMERIC(15,3) USING cum_depletion_rate::NUMERIC(15,3);
+
+COMMIT;