Address comments

Author: sakthivelmanii

google-cloud-spanner/src/main/resources/com/google/cloud/spanner/connection/ClientSideStatements.json

@@ -758,7 +758,7 @@
     "executorName": "ClientSideStatementSetExecutor",
     "resultType": "NO_RESULT",
     "statementType": "SET_BATCH_DML_UPDATE_COUNT",
-    "regex": "(?is)\\A\\s*set\\s+((?:session|local)\\s+)?batch_dml_update_count\\s*(?:=)\\s*(.*)\\z",
+    "regex": "(?is)\\A\\s*set\\s+(local\\s+)?batch_dml_update_count\\s*(?:=)\\s*(.*)\\z",
     "method": "statementSetBatchDmlUpdateCount",
     "exampleStatements": [
       "set local batch_dml_update_count = 0",
@@ -769,7 +769,7 @@
     "examplePrerequisiteStatements": ["set readonly = false", "set autocommit = false"],
     "setStatement": {
       "propertyName": "BATCH_DML_UPDATE_COUNT",
-      "separator": "(?:=|\\s+TO\\s+)",
+      "separator": "=",
       "allowedValues": "(\\d{1,19})",
       "converterName": "ClientSideStatementValueConverters$LongConverter"
     }