overwrite

问题 I am trying to read from a parquet file in spark, do a union with another rdd and then write the result into the same file I have read from (basically overwrite), this throws the following error: couldnt write parquet to file: An error occurred while calling o102.parquet. : org.apache.spark.sql.catalyst.errors.package$TreeNodeException: execute, tree: TungstenExchange hashpartitioning(billID#42,200), None +- Union :- Scan ParquetRelation[units#35,price#36,priceSold#37,orderingTime#38,itemID

问题 I am trying to read from a parquet file in spark, do a union with another rdd and then write the result into the same file I have read from (basically overwrite), this throws the following error: couldnt write parquet to file: An error occurred while calling o102.parquet. : org.apache.spark.sql.catalyst.errors.package$TreeNodeException: execute, tree: TungstenExchange hashpartitioning(billID#42,200), None +- Union :- Scan ParquetRelation[units#35,price#36,priceSold#37,orderingTime#38,itemID

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 8 years ago . Improve this question Is it possible to get the output of a command - for example tar - to write each line of output to one line only? Example usage: tar -options -f dest source | [insert trickery here] and the output would show every file being processed without making the screen move: each output overwrites

问题 For example, I have: dic={'a': 1, 'b': 2, 'c': 3} Now I'd like another 'c':4 add into dictionary. It'll overwrite the existing 'c':3 . How could I get dic like: dic={'a': 1, 'b': 2, 'c': 3, 'c':4} 回答1: Dictionary keys must be unique. But you can have a list as a value so you can store multiple values in it. This can be accomplished by using collections.defaultdict as shown below. (Example copied from IPython session.) In [1]: from collections import defaultdict In [2]: d = defaultdict(list)

问题 I'm using the Foundry template on Squarespace and I need to change the date format on post pages from english to portuguese. Instead of "May 6" I need "6 Mai". In Brazil we use the pattern dd/mm/yyyy. In this case I just want the day and month, and also translate all the months (to: Jan, Fev, Mar, Abr, Mai, Jun, Jul, Ago, Set, Out, Nov, Dez). I already saw people solving this for others languages there. But not to portuguese or on the Foundry template. It's possible to make a code-injection

问题 This is the basic flow that my Python script is following with XLSXwriter: Create Workbook Create Worksheet Define Formatting Write Column Headers in row1 (leveraging formatting from Step3) Write Actual Data in subsequent rows (no special formatting) I can create the workbook/worksheet. I then define formatting and populate worksheet row1 columns A:H with 'COLUMN HEADERS' which signify the type of DATA that will be written into each column on subsequent rows. This much is a success. My code

问题 Okay, so I just noticed this issue. There has to be a way around it. Example... On page A.php and on page B.php, there is a link to page ALPHABET.php. ALPHABET.php receives specified variable values depending on which page is the referrer. All pages involved have session_start(); at the beginning. Page A.php has: <?php $_SESSION['name'] = "John"; ?> Page B.php has: <?php $_SESSION['name'] = "Jane"; ?> Page ALPHABET.php has: <?php $personName = $_SESSION['name']; echo "Hello, I am ".

问题 I have a xml file like this <count>0</count> Now I wish to overwrite the value 0. How do I do that in c#? EDIT <counter> <count>0</count> <email> </email> </counter>` This is my XML file I wish to write a value in the email element and also change the value of count element XmlDocument doc = new XmlDocument(); doc.Load(COUNTER); foreach (XmlNode node in doc.SelectNodes("count")) { node.InnerText = (count-1).ToString(); } foreach (XmlNode node in doc.SelectNodes("email")) { node.InnerText =

问题 I have a method that is supposed to overwrite the current file with new content, however the FileWriter() is only appending the new content, not overwriting the old content. This is how my FileWriter is set up File file = new File(test.txt); BufferedWriter out; out = new BufferedWriter(new FileWriter(file, false)); Here is the save method //stuff is defined earlier and filled with the new content for the file ArrayList<String> stuff = new ArrayList<>(); //The actual save() method Object[]

问题 I've written some Perl code which compose two classes inherent from a base one. I suppose it would print something like this Mik: Meow! Meow! Sat: Woof! Woof! But it actually print this way: Sat: Woof! Woof! Sat: Woof! Woof! , package Animal; sub new { my $obj = shift; my $name = shift; our %pkg = ( 'name' => $name ); bless \%pkg, $obj; return \%pkg; } package Cat; @ISA = ("Animal"); sub new { my $obj = shift; my $name = shift; my $self = $obj->SUPER::new($name); return $self; } sub get_name