For the parity node, the response for getting the transaction trace contain "callType" and "type" which are all "call". But for geth node we only get 'type':'Call'. So I am confused, whats the difference between "callType" and "type"?

https://etherscan.io/vmtrace?txhash=0x626590b434e06b79fdd2187b28a55569f6c0636c6806808beb6ce2c743e88188&type=parity#raw

...
     "action": {
      "callType": "call",
      "from": "0x8871759b2530fee82cd1b31c534252a1db707b0b",
      "gas": "0x25ce48",
      "input": "0x3dea52fc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003e8000000000000000000000000000000000000000000000000077e772392b600000000000000000000000000000000000000000000000000000000000000000001",
      "to": "0x94c0d029a7b64bf443e89c5006089364c0d60d61",
      "value": "0x0"
    },
    "blockHash": "0xbe847be2bceb74e660daf96b3f0669d58f59dc9101715689a00ef864a5408f43",
    "blockNumber": 6000000,
    "result": {
      "gasUsed": "0x2532ed",
      "output": "0x"
    },
    "subtraces": 1,
    "traceAddress": [],
    "transactionHash": "0x626590b434e06b79fdd2187b28a55569f6c0636c6806808beb6ce2c743e88188",
    "transactionPosition": 45,
    "type": "call"}, 
...

but for geth node

...
 'result': {'type': 'CALL',
  'from': '0x8871759b2530fee82cd1b31c534252a1db707b0b',
  'to': '0x94c0d029a7b64bf443e89c5006089364c0d60d61',
  'value': '0x0',
  'gas': '0x25ce48',
  'gasUsed': '0x2532ed',
  'input': '0x3dea52fc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003e8000000000000000000000000000000000000000000000000077e772392b600000000000000000000000000000000000000000000000000000000000000000001',
  'output': '0x',
  'time': '10.824367485s',
...

For the parity node, the response for getting the transaction trace contain "callType" and "type" which are all "call". But for geth node we only get 'type':'Call'. So I am confused, whats the difference between "callType" and "type"?

https://etherscan.io/vmtrace?txhash=0x626590b434e06b79fdd2187b28a55569f6c0636c6806808beb6ce2c743e88188&type=parity#raw

 ...
 "action": {
  "callType": "call",
  "from": "0x8871759b2530fee82cd1b31c534252a1db707b0b",
  "gas": "0x25ce48",
  "input": "0x3dea52fc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003e8000000000000000000000000000000000000000000000000077e772392b600000000000000000000000000000000000000000000000000000000000000000001",
  "to": "0x94c0d029a7b64bf443e89c5006089364c0d60d61",
  "value": "0x0"
},
"blockHash": "0xbe847be2bceb74e660daf96b3f0669d58f59dc9101715689a00ef864a5408f43",
"blockNumber": 6000000,
"result": {
  "gasUsed": "0x2532ed",
  "output": "0x"
},
"subtraces": 1,
"traceAddress": [],
"transactionHash": "0x626590b434e06b79fdd2187b28a55569f6c0636c6806808beb6ce2c743e88188",
"transactionPosition": 45,
"type": "call"}, 

...

but for geth node, I got:

  ...
  'result': {'type': 'CALL',
  'from': '0x8871759b2530fee82cd1b31c534252a1db707b0b',
  'to': '0x94c0d029a7b64bf443e89c5006089364c0d60d61',
  'value': '0x0',
  'gas': '0x25ce48',
  'gasUsed': '0x2532ed',
  'input': 
 '0x3dea52fc00000000000000000000000000000000000000000000000000000000000000 
 0000000000000000000000000000000000000000000000000000000000000003e800000000 
 0000000000000000000000000000000000000000077e772392b600000000000000000000000000000000000000000000000000000000000000000001',
  'output': '0x',
  'time': '10.824367485s',
  ...