change test file

tensnsorflow/multi.py

@@ -230,7 +230,7 @@ if __name__ == '__main__':
         .set("spark.tispark.plan.allow_index_read", "true") \
         .set("spark.sql.extensions", "org.apache.spark.sql.TiExtensions") \
         .set("spark.tispark.pd.addresses", "172.16.40.158:2379").set("spark.io.compression.codec", "lzf")\
-        .set("spark.driver.maxResultSize", "8g")
+        .set("spark.driver.maxResultSize", "8g").set("spark.sql.avro.compression.codec","snappy")
 
     spark = SparkSession.builder.config(conf=sparkConf).enableHiveSupport().getOrCreate()
     ti = pti.TiContext(spark)