diff --git a/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-logical-plan/src/main/java/org/finos/legend/engine/persistence/components/common/FileFormat.java b/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-logical-plan/src/main/java/org/finos/legend/engine/persistence/components/common/FileFormat.java
index 3d5f556970a..75cf32a3a55 100644
--- a/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-logical-plan/src/main/java/org/finos/legend/engine/persistence/components/common/FileFormat.java
+++ b/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-logical-plan/src/main/java/org/finos/legend/engine/persistence/components/common/FileFormat.java
@@ -16,20 +16,8 @@
 
 public enum FileFormat
 {
-    CSV("CSV"),
-    JSON("JSON"),
-    AVRO("AVRO"),
-    PARQUET("PARQUET");
-
-    String name;
-
-    FileFormat(String name)
-    {
-        this.name = name;
-    }
-
-    public String getName()
-    {
-        return this.name;
-    }
+    CSV,
+    JSON,
+    AVRO,
+    PARQUET;
 }
diff --git a/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/executor/BigQueryExecutor.java b/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/executor/BigQueryExecutor.java
index d2da804ec33..046d2088a44 100644
--- a/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/executor/BigQueryExecutor.java
+++ b/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/executor/BigQueryExecutor.java
@@ -75,15 +75,12 @@ public Map<StatisticName, Object> executeLoadPhysicalPlanAndGetStats(SqlPlan phy
     {
         List<String> sqlList = physicalPlan.getSqlList();
 
-        // The first SQL is a load statement
-        // Executed in a new transaction
+        // Load statement (Not supported in Bigquery to run in a transaction)
         Map<StatisticName, Object> loadStats = bigQueryHelper.executeLoadStatement(getEnrichedSql(placeholderKeyValues, sqlList.get(0)));
 
-        // The second SQL is an insert statement
-        // We need to first close the current transaction (if it exists) and open a new transaction
-        // Such that the result of the Load will be available to the Insert
-        bigQueryHelper.close();
-        bigQueryHelper.executeStatement(getEnrichedSql(placeholderKeyValues, sqlList.get(1)));
+        // Isolation level of Bigquery is Snapshot,
+        // So Insert statement has to run in a new transaction so that it can see the changes of Load
+        bigQueryHelper.executeStatementInANewTransaction(getEnrichedSql(placeholderKeyValues, sqlList.get(1)));
         return loadStats;
     }
 
diff --git a/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/executor/BigQueryHelper.java b/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/executor/BigQueryHelper.java
index 1336c32eda2..261226baa04 100644
--- a/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/executor/BigQueryHelper.java
+++ b/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/executor/BigQueryHelper.java
@@ -327,6 +327,12 @@ public void executeStatement(String sql)
         executeStatements(sqls);
     }
 
+    public void executeStatementInANewTransaction(String sql)
+    {
+        List<String> sqls = Collections.singletonList(sql);
+        executeStatementsInANewTransaction(sqls);
+    }
+
     // Execute statements in a transaction - either use an existing one or use a new one
     public void executeStatements(List<String> sqls)
     {
@@ -346,45 +352,50 @@ public void executeStatements(List<String> sqls)
         }
         else
         {
-            BigQueryTransactionManager txManager = null;
-            try
+            executeStatementsInANewTransaction(sqls);
+        }
+    }
+
+    public void executeStatementsInANewTransaction(List<String> sqls)
+    {
+        BigQueryTransactionManager txManager = null;
+        try
+        {
+            txManager = new BigQueryTransactionManager(bigQuery);
+            txManager.beginTransaction();
+            for (String sql : sqls)
             {
-                txManager = new BigQueryTransactionManager(bigQuery);
-                txManager.beginTransaction();
-                for (String sql : sqls)
-                {
-                    txManager.executeInCurrentTransaction(sql);
-                }
-                txManager.commitTransaction();
+                txManager.executeInCurrentTransaction(sql);
             }
-            catch (Exception e)
+            txManager.commitTransaction();
+        }
+        catch (Exception e)
+        {
+            LOGGER.error("Error executing SQL statements: " + sqls, e);
+            if (txManager != null)
             {
-                LOGGER.error("Error executing SQL statements: " + sqls, e);
-                if (txManager != null)
+                try
                 {
-                    try
-                    {
-                        txManager.revertTransaction();
-                    }
-                    catch (InterruptedException e2)
-                    {
-                        throw new RuntimeException(e2);
-                    }
+                    txManager.revertTransaction();
+                }
+                catch (InterruptedException e2)
+                {
+                    throw new RuntimeException(e2);
                 }
-                throw new RuntimeException(e);
             }
-            finally
+            throw new RuntimeException(e);
+        }
+        finally
+        {
+            if (txManager != null)
             {
-                if (txManager != null)
+                try
                 {
-                    try
-                    {
-                        txManager.close();
-                    }
-                    catch (InterruptedException e)
-                    {
-                        LOGGER.error("Error closing transaction manager.", e);
-                    }
+                    txManager.close();
+                }
+                catch (InterruptedException e)
+                {
+                    LOGGER.error("Error closing transaction manager.", e);
                 }
             }
         }
diff --git a/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/sql/visitor/StagedFilesDatasetReferenceVisitor.java b/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/sql/visitor/StagedFilesDatasetReferenceVisitor.java
index 82f7045a630..0c5e7d91bc5 100644
--- a/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/sql/visitor/StagedFilesDatasetReferenceVisitor.java
+++ b/legend-engine-xts-persistence/legend-engine-xt-persistence-component/legend-engine-xt-persistence-component-relational-bigquery/src/main/java/org/finos/legend/engine/persistence/components/relational/bigquery/sql/visitor/StagedFilesDatasetReferenceVisitor.java
@@ -40,7 +40,7 @@ public VisitorResult visit(PhysicalPlanNode prev, StagedFilesDatasetReference cu
 
         Map<String, Object> loadOptionsMap = new HashMap<>();
         FileFormat fileFormat = datasetProperties.fileFormat();
-        loadOptionsMap.put("format", fileFormat.getName());
+        loadOptionsMap.put("format", fileFormat.name());
         datasetProperties.loadOptions().ifPresent(options -> retrieveLoadOptions(fileFormat, options, loadOptionsMap));
 
         StagedFilesTable stagedFilesTable = new StagedFilesTable(datasetProperties.files(), loadOptionsMap);