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Posted to issues@calcite.apache.org by "Zhiqiang He (JIRA)" <ji...@apache.org> on 2017/01/18 03:52:26 UTC
[jira] [Created] (CALCITE-1586) wrong rel-to-sql conversion when
performing set operation more then two inputs.
Zhiqiang He created CALCITE-1586:
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Summary: wrong rel-to-sql conversion when performing set operation more then two inputs.
Key: CALCITE-1586
URL: https://issues.apache.org/jira/browse/CALCITE-1586
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.10.0
Environment: NA
Reporter: Zhiqiang He
Assignee: Julian Hyde
Priority: Critical
in union example, after UnionMergeRule, the union input is convert to three input, and rel to sql convert result is wrong.
inputsql
SELECT *
FROM (SELECT \"product_id\"
FROM \"foodmart\".\"product\"
UNION ALL
SELECT \"product_id\"
FROM \"foodmart\".\"sales_fact_1997\")
UNION ALL
SELECT \"product_class_id\" AS \"PRODUCT_ID\"
FROM \"foodmart\".\"product_class\"
output sql
SELECT \"product_id\"
FROM \"foodmart\".\"product\"
UNION ALL
SELECT \"product_id\"
FROM \"foodmart\".\"sales_fact_199
on union query is lost.
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