我跑sudo pip install git-review,并得到以下消息:
Downloading/unpacking git-review
Cannot fetch index base URL http://pypi.python.org/simple/
Could not find any downloads that satisfy the requirement git-review
No distributions at all found for git-review
Storing complete log in /home/sai/.pip/pip.log
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有没有人对此有任何想法?
我试图将用户的请求URL作为密钥存储,并将与该密钥对应的PHP对象存储为Redis中的值.我尝试了以下方法:
$redisClient = new Redis();
$redisClient->connect('localhost', 6379);
$redisClient->set($_SERVER['REQUEST_URI'], $this->page);
$redisTest = $redisClient->get($_SERVER['REQUEST_URI']);
var_dump($redisTest);
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但是,使用此代码时,存储在Redis中的URL键的值是类型,string其值等于"Object"而不是实际的PHP对象.有没有办法存储PHP对象而不进行序列化?
当我尝试构建Snare(http://www.intersectalliance.com/projects/BackLogNT/)项目时,Visual Studio 2013会返回此错误.
我安装了Windows SDK,我意识到我应该将SDK路径包含到我的项目中.任何人都可以解释如何将SDK路径包含到Visual Studio项目中吗?
我使用以下返回的JSON字符串调用了REST API:
"{\"profile\":[{\"name\":\"city\",\"rowCount\":1,\"location\": ............
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在反序列化之前,我尝试使用以下代码删除转义符:
jsonString = jsonString.Replace(@"\", " ");
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但是,当我反序列化它时,它会抛出一个input string was not in a correct format:
SearchRootObject obj = JsonConvert.DeserializeObject<SearchRootObject>(jsonString);
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以下是完整的代码:
public static SearchRootObject obj()
{
String url = Glare.searchUrl;
string jsonString = "";
// Create the web request
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
// Get response
var response = request.GetResponse();
Stream receiveStream = response.GetResponseStream();
// Pipes the stream to a higher level stream reader with the required encoding format.
StreamReader readStream = new StreamReader(receiveStream, …Run Code Online (Sandbox Code Playgroud) Spark Version: spark-2.0.1-bin-hadoop2.7
Scala: 2.11.8
我正在将原始csv加载到DataFrame中.在csv中,虽然该列支持日期格式,但它们写成20161025而不是2016-10-25.该参数date_format包括需要转换为yyyy-mm-dd格式的列名称字符串.
在下面的代码,我首先通过加载日期列的CSV作为StringType schema,然后我检查是否date_format是不空的,也就是说有需要被转换为列Date从String,然后使用浇铸每一列unix_timestamp和to_date.但是,在中csv_df.show(),返回的行都是null.
def read_csv(csv_source:String, delimiter:String, is_first_line_header:Boolean,
schema:StructType, date_format:List[String]): DataFrame = {
println("|||| Reading CSV Input ||||")
var csv_df = sqlContext.read
.format("com.databricks.spark.csv")
.schema(schema)
.option("header", is_first_line_header)
.option("delimiter", delimiter)
.load(csv_source)
println("|||| Successfully read CSV. Number of rows -> " + csv_df.count() + " ||||")
if(date_format.length > 0) {
for (i <- 0 until date_format.length) {
csv_df = csv_df.select(to_date(unix_timestamp(
csv_df(date_format(i)), "yyyy-MM-dd").cast("timestamp"))) …Run Code Online (Sandbox Code Playgroud) scala apache-spark apache-spark-sql spark-dataframe spark-csv
我编写了一个函数insert_offset_data(text, double precision),如下所示:
BEGIN
INSERT INTO tempoffset(id, location, offset_factor, ts_insert)
VALUES (uuid_generate_v4(), location_in, offset_in, (now() at time zone 'utc'));
RETURN 1;
END;
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但是,由于每当用户从iOS应用程序插入数据时,都会在API调用中使用此函数,因此我希望删除表中早于1小时的数据,然后再向其中插入新数据,因为iOS应用程序不会考虑超过一个小时的帐户数据。在同一个函数中插入新数据之前,如何编写代码删除旧数据?