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https://issues.apache.org/jira/browse/PIG-3943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Manu Zhang updated PIG-3943:
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Attachment: PIG-3943.patch
patch attached
> inconsistency between DefaultAbstractBag readFields and write methods
> ----------------------------------------------------------------------
>
> Key: PIG-3943
> URL: https://issues.apache.org/jira/browse/PIG-3943
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.12.1, 0.13.0
> Reporter: Manu Zhang
> Attachments: PIG-3943.patch
>
>
> By default, NullableBag will write out a DefaultDataBag which inherits the
> write/readFields methods of DefaultAbstractBag. We found the two are
> inconsistent:
> {code}
> public void readFields(DataInput in) throws IOException {
> long size = in.readLong();
> for (long i = 0; i < size; i++) {
> try {
> Object o = sedes.readDatum(in);
> add((Tuple)o);
> } catch (ExecException ee) {
> throw ee;
> }
> }
> }
> public void write(DataOutput out) throws IOException {
> sedes.writeDatum(out, this);
> }
> {code}
> when writing out, the first byte will be one of TINYBAG, SMALLBAG or BAG,
> followed by size which would be a byte, short or long accordingly. Regardless
> of that format, the readFields method directly reads size as a long.
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