Philip (flip) Kromer created PIG-3939:
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Summary: SPRINTF function to format strings using a printf-style
template
Key: PIG-3939
URL: https://issues.apache.org/jira/browse/PIG-3939
Project: Pig
Issue Type: New Feature
Components: impl, internal-udfs
Reporter: Philip (flip) Kromer
Assignee: Philip (flip) Kromer
Pig should provide a function to format output using java.util.Formatter
(printf-style) templates.
{code}
SPRINTF('%6s|%-8s|%2$,10d %2$8x %3$1TFT%<tT%<tz', 'yay', 1234567,
ToMilliSeconds(CurrentTime()))
-- ' yay|1234567 | 1,234,567 12d687 2014-05-15T08:22:26-0500'
{code}
I've written a UDF implementing SPRINTF(...), a variable-arguments function
that accepts a string and any number of objects and returns a string. It counts
on the java.util.Formatter to do its type-conversion, which works quite well.
It doesn't appreciates pig's Dates for datetime formats ('%t'), but is quite
happy with epoch milliseconds as shown above.
Patch forthcoming.
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