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| author | Burak Yavuz <brkyvz@gmail.com> | 2017-02-10 12:55:06 +0100 |
|---|---|---|
| committer | Herman van Hovell <hvanhovell@databricks.com> | 2017-02-10 12:55:06 +0100 |
| commit | d5593f7f5794bd0343e783ac4957864fed9d1b38 (patch) | |
| tree | 8e58d63a0bd9999b5fff871032563215b50b9a2f /docs | |
| parent | fd6c3a0b10ce43a56df845ba66d160b77f02e576 (diff) | |
| download | spark-d5593f7f5794bd0343e783ac4957864fed9d1b38.tar.gz spark-d5593f7f5794bd0343e783ac4957864fed9d1b38.tar.bz2 spark-d5593f7f5794bd0343e783ac4957864fed9d1b38.zip | |
[SPARK-19543] from_json fails when the input row is empty
## What changes were proposed in this pull request?
Using from_json on a column with an empty string results in: java.util.NoSuchElementException: head of empty list.
This is because `parser.parse(input)` may return `Nil` when `input.trim.isEmpty`
## How was this patch tested?
Regression test in `JsonExpressionsSuite`
Author: Burak Yavuz <brkyvz@gmail.com>
Closes #16881 from brkyvz/json-fix.
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