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https://issues.apache.org/jira/browse/CALCITE-3339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16928018#comment-16928018
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Rui Wang edited comment on CALCITE-3339 at 9/11/19 9:33 PM:
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Clearly it's defined at 8.15 <descriptor argument> in
https://webstore.iec.ch/preview/info_isoiec19075-7%7Bed1.0%7Den.pdf. However, I
don't know how to get a free copy.
was (Author: amaliujia):
Clearly it's defined in
https://webstore.iec.ch/preview/info_isoiec19075-7%7Bed1.0%7Den.pdf. However, I
don't know how to get a free copy.
> DESCRIPTOR as a SQL operator in SqlStdOperatorTable
> ---------------------------------------------------
>
> Key: CALCITE-3339
> URL: https://issues.apache.org/jira/browse/CALCITE-3339
> Project: Calcite
> Issue Type: Sub-task
> Reporter: Rui Wang
> Assignee: Rui Wang
> Priority: Major
>
> For query:
> SELECT *
> FROM TABLE(TUMBLE_TVF(
> TABLE ORDERS,
> DESCRIPTOR(ROWTIME),
> INTERVAL '10' MINUTE))
> TABLE ORDERS is converted to SqlPrefixOperator, but DESCRIPTOR(ROWTIME) has
> no mapping in SqlStdOperatorTable.
> There are two options:
> 1. There is a SqlColumnListConstructor which serves the same(similar) purpose
> to specific a list of column.
> 2. We create a new operator for DESCRIPTOR.
> Reuse existing code is always good so we can start from option one and see if
> it works.
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