abraxas | A streaming gearman client / worker / server
kandi X-RAY | abraxas Summary
kandi X-RAY | abraxas Summary
A gearman client, worker and server module implemented on top of gearman-protocol for full end-to-end streaming support.
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QUESTION
I want to know if it is possible to get all the documents from a MongoDB database by querying on the elements of a field whose value is a list. For example here q2.Results
has a list of comments and I would like to get all the documents where the UserNickname
of the person who wrote the comment is Jackobear
:
ANSWER
Answered 2021-Apr-23 at 23:27$match
to filter the records 1st so that$unwind
will have fewer records to deal with.$unwind
to break into individual documents.Now perform match on individual documents.
You can use $group to group documents.
QUESTION
I have a dataframe graphcounts with a hero Id and connections as below
...ANSWER
Answered 2020-Nov-25 at 04:03The issue with the error was there are headers for each column of the dataframe. However when I reading with schema and without including header=True, the header column name became one of the column values. The lookup failed as there is no name with that column.
QUESTION
I am currently working on a program that scrapes Yahoo Finance Earnings Calendar Page and stores the data in a file. I am able to scrape the data but I am confused as to why it only scrapes the first 2 and last 2 columns. I also tried to do the same with a table on Wikipedia for List of S&P 500 Companies and am running into the same problem. Any help is appreciated.
Yahoo Finance Code
...ANSWER
Answered 2019-Nov-17 at 07:23As far as I can tell this nothing to do with the data and everything to do with the representation. Only the first and last columns are printed so as to keep the output from being massive and difficult to read. You can even see at the end of your output that your DataFrame has 9 columns.
Take a look here if you want to print the entire thing. You could also use .info
to get some general information on your columns.
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