From e63c8747b59d01b624b4e1fb15f2614de39c7fa0 Mon Sep 17 00:00:00 2001
From: Petr <petr@keboola.com>
Date: Wed, 18 Mar 2026 13:01:23 +0100
Subject: [PATCH] Fix metric expression extraction: use 'code' field

OpenMetadata stores SQL in metricExpression.code, not .expression.
This caused all metric expressions to export as empty strings.
---
 connectors/openmetadata/transformer.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/connectors/openmetadata/transformer.py b/connectors/openmetadata/transformer.py
index 4100e46..b426357 100644
--- a/connectors/openmetadata/transformer.py
+++ b/connectors/openmetadata/transformer.py
@@ -102,7 +102,8 @@ def extract_expression(raw_metric: Dict[str, Any]) -> str:
     """
     metric_expr = raw_metric.get("metricExpression", {})
     if isinstance(metric_expr, dict):
-        return metric_expr.get("expression", "") or ""
+        # OpenMetadata uses "code" field for the SQL expression
+        return metric_expr.get("code", "") or metric_expr.get("expression", "") or ""
     if isinstance(metric_expr, str):
         return metric_expr
     return ""