[
https://issues.apache.org/jira/browse/PIG-513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Pradeep Kamath reopened PIG-513:
--------------------------------
Pig is supposed to provide nulls for columns not present in the data. For
example if a file has 3 columns name, age gpa then the following statement
should still work with the column 'extra' getting nulls:
{noformat}
a = load 'input' as (name, age, gpa, extra);
{noformat}
This is broken with the current code.
> PERFORMANCE: optimize some of the code in DefaultTuple
> ------------------------------------------------------
>
> Key: PIG-513
> URL: https://issues.apache.org/jira/browse/PIG-513
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.2.0
> Reporter: Pradeep Kamath
> Assignee: Pradeep Kamath
> Fix For: 0.6.0
>
> Attachments: PIG-513.patch, pig-513_2.patch
>
>
> The following areas in DefaultTuple.java can be changed:
> The member methods get(), set(), getType() and isNull() all call
> checkBounds() which is redundant call since all these 4 functions throw
> ExecException. Instead of doing a bounds check, we can catch the
> IndexOutOfBounds exception in a try-catch and throw it as an ExecException
> The write() method has the following unused object (d in the code below):
> {code}
> for (int i = 0; i < sz; i++) {
> try {
> Object d = get(i);
> } catch (ExecException ee) {
> throw new RuntimeException(ee);
> }
> DataReaderWriter.writeDatum(out, mFields.get(i));
> }
> {code}
> {noformat}
> The get(i) call in the try should be replaced by the writeDatum call directly
> since d is never used and there is an unncessary call to get()
> {noformat}
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
