Sihua Zhou created CALCITE-1838:
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Summary: Support hive's udtf grammar.
Key: CALCITE-1838
URL: https://issues.apache.org/jira/browse/CALCITE-1838
Project: Calcite
Issue Type: New Feature
Components: core
Affects Versions: 1.12.0
Reporter: Sihua Zhou
Assignee: Julian Hyde
Priority: Blocker
Now Calcite doesn't support the hive form of UDTF, eg:
_select udtf(arg1, arg2) as (seg1, seg2, seg3) from table_
Instead, it provide a table function. But we found that hive's udtf form is
more easier for users to understand.
We are building a stream sql framework with calcite, which allow user to
process data stream by write sql. And most users are migrated from using hive
to process offline data. So, use hive's udtf is more friendly to them.
Can you add the feature to support hive udtf in calcite? We really need it.
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