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https://issues.apache.org/jira/browse/CALCITE-4526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-4526:
---------------------------------
Description:
hi,community. now calcite support SqlSnapshot.
when a sql like _*SELECT orders.order_id, products.pro_id,
products.product_name*_
_*FROM default_catalog.default_database.orders AS orders*_
_*LEFT JOIN default_catalog.default_database.products FOR SYSTEM_TIME AS OF
orders.proctime AS products ON orders.product_id = products.pro_id .*_
_*default_catalog.default_database.products FOR SYSTEM_TIME AS OF
orders.proctime AS products*_ parse to SqlSnapshot .however, when unparse. it
is _*default_catalog.default_database.products AS products FOR SYSTEM_TIME AS
OF orders.proctime.*_ which can not be parsed again.
if we should consider this condition.
the same problem when I found in FLINK-19670.
was:
hi,community. now calcite support SqlSnapshot.
when a sql like _*SELECT orders.order_id, products.pro_id,
products.product_name*_
_*FROM default_catalog.default_database.orders AS orders*_
_*LEFT JOIN default_catalog.default_database.products FOR SYSTEM_TIME AS OF
orders.proctime AS products ON orders.product_id = products.pro_id .*_
_*default_catalog.default_database.products FOR SYSTEM_TIME AS OF
orders.proctime AS products*_ parse to SqlSnapshot .however, when unparse. it
is _*default_catalog.default_database.products AS products FOR SYSTEM_TIME AS
OF orders.proctime.*_ which can not be parsed again.
if we should consider this condition.
the same problem when I found in flink [link
title|https://issues.apache.org/jira/browse/FLINK-19670?focusedCommentId=17297877&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17297877]
> SqlSnapshot unparse problem when tablRef is As-SqlBasicCall
> -----------------------------------------------------------
>
> Key: CALCITE-4526
> URL: https://issues.apache.org/jira/browse/CALCITE-4526
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.26.0
> Reporter: jibiyr
> Priority: Blocker
>
> hi,community. now calcite support SqlSnapshot.
> when a sql like _*SELECT orders.order_id, products.pro_id,
> products.product_name*_
> _*FROM default_catalog.default_database.orders AS orders*_
> _*LEFT JOIN default_catalog.default_database.products FOR SYSTEM_TIME AS OF
> orders.proctime AS products ON orders.product_id = products.pro_id .*_
>
> _*default_catalog.default_database.products FOR SYSTEM_TIME AS OF
> orders.proctime AS products*_ parse to SqlSnapshot .however, when unparse.
> it is _*default_catalog.default_database.products AS products FOR SYSTEM_TIME
> AS OF orders.proctime.*_ which can not be parsed again.
>
> if we should consider this condition.
> the same problem when I found in FLINK-19670.
>
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