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https://issues.apache.org/jira/browse/PIG-1479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Ding updated PIG-1479:
------------------------------
Attachment: PIG-1479_2.patch
In the previous patch, the executeScript method on ScriptPigServer returns a
list of ExecJobs (one for each store statement in the script). Unfortunately,
the order of ExecJobs in the list is indeterminate.
This patch fixes this problem by making the executeScript method return a
PigStats object. One then can retrieves the output result by the alias
corresponding to store statement.
Here is a example:
{code}
P = pig.executeScript("""
A = load '${input}';
... ...
store G into '${output}'; """)
output = P.result("G") # an OutputStats object
iter = output.iterator()
if iter.hasNext():
# do something
else:
# do something else
{code}
> Embed Pig in scripting languages
> --------------------------------
>
> Key: PIG-1479
> URL: https://issues.apache.org/jira/browse/PIG-1479
> Project: Pig
> Issue Type: New Feature
> Reporter: Julien Le Dem
> Attachments: PIG-1479.patch, PIG-1479_2.patch, pig-greek.tgz
>
>
> It should be possible to embed Pig calls in a scripting language and let
> functions defined in the same script available as UDFs.
> This is a spin off of https://issues.apache.org/jira/browse/PIG-928 which
> lets users define UDFs in scripting languages.
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