public String getPrepareTxnStmt() {
    if (isMYSQL()) {
      return "SET @@session.sql_mode=ANSI_QUOTES";
    }
    else {
     return null;
    }
  }
Returns db-specific logic to be executed at the beginning of a transaction.
Used in pooled connections.
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/DatabaseProduct.java