removing spark.sql.catalog.iceberg.rest.signing-name

S3-Iceberg-Integration.md

@@ -42,8 +42,7 @@ spark-sql \
     --conf "spark.sql.catalog.iceberg.s3.access-key-id=YOUR_ACCESS_KEY" \
     --conf "spark.sql.catalog.iceberg.s3.secret-access-key=YOUR_SECRET_KEY" \
     --conf "spark.sql.catalog.iceberg.rest.sigv4-enabled=true" \
-    --conf "spark.sql.catalog.iceberg.rest.signing-name=s3tables" \
-    --conf "spark.sql.catalog.iceberg.rest.signing-region=us-east-1"
+    --conf "spark.sql.catalog.iceberg.rest.signing-name=s3tables"
 ```
 
 > [!NOTE]
@@ -66,7 +65,6 @@ iceberg.rest-catalog.warehouse=s3tablescatalog/my-table-bucket
 # Enable SigV4 authentication for the REST catalog
 iceberg.rest-catalog.security=SIGV4
 iceberg.rest-catalog.signing-name=s3tables
-iceberg.rest-catalog.signing-region=us-east-1
 
 # S3 FileIO Configuration
 fs.native-s3.enabled=true