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spark data read with quoted string


spark data read with quoted string

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spark data read with quoted string
Tag : apache-spark , By : Nickolas
Date : November 28 2020, 04:01 AM

like below fixes the issue Spark 2.2.0 has added support for parsing multi-line CSV files. You can use following to read a csv with multi-line:
val df = spark.read
  .option("sep", ",")
  .option("quote", "")
  .option("multiLine", "true")
  .option("inferSchema", "true")
  .csv(file_name) 

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How can I use read on a string that is not double quoted?


Tag : string , By : new Blackberry devel
Date : March 29 2020, 07:55 AM
hope this fix your issue Since you want to add your own custom read behavior for user names, the way to do that is to actually write a new instance for readings names. To do that we can create a new type for names:
import Control.Arrow (first)

newtype Name = Name { unName :: String }
    deriving (Eq, Ord, Show)
instance Read Name where
    readsPrec n = map (first Name) . readsPrec n . quote
        where quote s = '"' : s ++ ['"'] 
data Person = Person { age :: Int
                     , name :: Name } deriving Show  
*Main> changeName (Person 31 (Name "dons"))
Please enter a new value for name
Don
Person {age = 31, name = Name {unName = "Don"}}

Regular Expression to match a quoted string embedded in another quoted string


Tag : chash , By : abuiles
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I have a data source that is comma-delimited, and quote-qualified. A CSV. However, the data source provider sometimes does some wonky things. I've compensated for all but one of them (we read in the file line-by-line, then write it back out after cleansing), and I'm looking to solve the last remaining problem when my regex-fu is pretty weak. , Replace with this regex
(?<!,\s*|^)"([^",]*)"
(?<!,\s*|^)""([^"",]*)""

Can't get argparse to read quoted string with dashes in it?


Tag : python , By : Priya
Date : March 29 2020, 07:55 AM
will be helpful for those in need You can start the argument with a space python tst.py -e ' -e blah' as a very simple workaround. Simply lstrip() the option to put it back to normal, if you like.
Or, if the first "sub-argument" is not also a valid argument to the original function then you shouldn't need to do anything at all. That is, the only reason that python tst.py -e '-s hi -e blah' doesn't work is because -s is a valid option to tst.py.

read.csv warning 'EOF within quoted string' in R but successful read in EXCEL


Tag : r , By : Mariocki
Date : March 29 2020, 07:55 AM
Hope that helps I run into the very same error and after hours of searching, I think this will surly do you some benefits.
Sys.setlocale("LC_ALL", "English")

Reading a CSV file into spark with data containing commas in a quoted field


Tag : scala , By : suresh
Date : March 29 2020, 07:55 AM
it fixes the issue Notice there is a space after delimiter (a comma ,).
This breaks quotation processing .
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