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https://issues.apache.org/jira/browse/CALCITE-1515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16789516#comment-16789516
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Chunwei Lei commented on CALCITE-1515:
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Hi [~julianhyde] [~anmu]
I opened a pull request: https://github.com/apache/calcite/pull/1102.
Though I think the signature is convenient, I am not sure whether it is proper
which is as follows:
{code:java}
RelBuilder functionScan(
SqlOperator operator,
Iterable<? extends RexNode> operands);
RexNode cursor(int ordinal);
{code}
Any comment will be appreciated.
> Support TableFunctionScan in RelBuilder
> ---------------------------------------
>
> Key: CALCITE-1515
> URL: https://issues.apache.org/jira/browse/CALCITE-1515
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.10.0
> Reporter: Anton Mushin
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Calcite has a TableFunctionScan, which is a RelNode, takes a function, 0 or
> more RelNode inputs, and 0 or more other arguments.
> RelBuilder does not support TableFunctionScan yet.
> add In RelBuilder TableFunctionScanFactory which will create
> LogicalTableFunctionScan like as for LogicalTableScan and factory for others
> RelNodes [
> [example|https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/tools/RelBuilder.java#L125]
> ]
> also adding a functionScan method, analogous to the scan method but for table
> functions.
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