在select（）之后在aerospike.client.scan.foreach（）上获得细分错误

Question

我有以下代码，该代码对于一套航空突击队来说运行正常，但对于

会引发以下错误

import aerospike
import sys,traceback
import redis
import time
import json
import sys

def process_result((key, metadata, record)):
    try:
        print "key" //This is printing for working set
        //Removed all other logic from here. 
    except:
        print("Got errors in processing " + key[2])


columnNames = {0:'PK',1:'merchantInKey'}

client = aerospike.client(config).connect()
scan = client.scan('namespace', 'setname')
#print type(columnNames)
scan.select(**columnNames) 
scan.foreach(process_result)

错误-

Segmentation fault (core dumped)

我不知道这种情况下怎么了。

更新

指定这样的字段，而不是上面的示例中的**columnNames-

scan.select('PK','merchantInKey')