diff --git a/config.py b/config.py
index 70d8d09..c7b3ed6 100644
--- a/config.py
+++ b/config.py
@@ -151,18 +151,23 @@ ELABDATADISP_FIELD_MAPPING = {
 # PostgreSQL Partition years (from both tables)
 PARTITION_YEARS = list(range(2014, 2032))  # 2014-2031
 
-# Table configurations
-TABLE_CONFIGS = {
-    "rawdatacor": {
-        "mysql_table": "RAWDATACOR",
-        "postgres_table": "rawdatacor",
-        "primary_key": "id",
-        "partition_key": "event_date",
-    },
-    "elabdatadisp": {
-        "mysql_table": "ELABDATADISP",
-        "postgres_table": "elabdatadisp",
-        "primary_key": "idElabData",
-        "partition_key": "event_date",
-    },
+# Table configurations - support both uppercase and lowercase keys
+_rawdatacor_config = {
+    "mysql_table": "RAWDATACOR",
+    "postgres_table": "rawdatacor",
+    "primary_key": "id",
+    "partition_key": "event_date",
+}
+_elabdatadisp_config = {
+    "mysql_table": "ELABDATADISP",
+    "postgres_table": "elabdatadisp",
+    "primary_key": "idElabData",
+    "partition_key": "event_date",
+}
+
+TABLE_CONFIGS = {
+    "rawdatacor": _rawdatacor_config,
+    "RAWDATACOR": _rawdatacor_config,
+    "elabdatadisp": _elabdatadisp_config,
+    "ELABDATADISP": _elabdatadisp_config,
 }