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https://issues.apache.org/jira/browse/HBASE-8693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13744499#comment-13744499
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Nick Dimiduk commented on HBASE-8693:
-------------------------------------
Hi [~giacomotaylor],
I'm assuming Phoenix intends to use the provided {{Struct}} and
{{StructIterator}} implementations.
In the case of reading a written value, a call to
{{Struct#decode(PositionedByteRange)}} will return the decoded {{Object[]}}. If
you've previously stripped off null columns or you've extended your schema
since the data was written, the resulting array will be shorter than your
schema demands. In this case, it should be a simple check of the length of the
decoded {{Object[]}} and act accordingly.
The case of writing a value, your scenario is almost supported, except for this
silly little
[{{assert}}|https://github.com/apache/hbase/blob/trunk/hbase-common/src/main/java/org/apache/hadoop/hbase/types/Struct.java#L158].
To support writing fewer members than are defined in the {{Struct}}
definition, this needs changed to
{noformat}
assert fields.length >= val.length;
{noformat}
Does that sound about right to you?
> DataType: provide extensible type API
> -------------------------------------
>
> Key: HBASE-8693
> URL: https://issues.apache.org/jira/browse/HBASE-8693
> Project: HBase
> Issue Type: Sub-task
> Components: Client
> Reporter: Nick Dimiduk
> Assignee: Nick Dimiduk
> Priority: Blocker
> Fix For: 0.98.0, 0.95.2
>
> Attachments: 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0001-HBASE-8693-Extensible-data-types-API.patch,
> 0002-HBASE-8693-example-Use-DataType-API-to-build-regionN.patch,
> KijiFormattedEntityId.java
>
>
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