[
https://issues.apache.org/jira/browse/CALCITE-4000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rui Wang updated CALCITE-4000:
------------------------------
Description:
TUMBLE/HOP have an optional "OFFSET" parameter to indicate how many time off
from 0 for windowing. The OFFSET parameter is interval type.
{code:java}
TUMBLE(table, size [, offset])
HOP(table, shift, size, [, offset])
{code}
One example:
Say here is a TUMBLE call with the following output
TUMBLE(table, INTERNVAL '5' MINUTE)
||rowtime||window_start||window_end||
|2020-06-20 12:23:40|2020-06-20 12:20:00|2020-06-20 12:25:00|
if using the optional offset parameter
TUMBLE(table, INTERNVAL '5' MINUTE, INTERNVAL '2' MINUTE)
||rowtime||window_start||window_end||
|2020-06-20 12:23:40|2020-06-20 12:22:00|2020-06-20 12:27:00|
was:
TUMBLE/HOP have an optional "OFFSET" parameter to indicate how many time off
from 0 for windowing. The OFFSET parameter is interval type.
{code:java}
TUMBLE(table, size [, offset])
HOP(table, shift, size, [, offset])
{code}
One example:
Say here is a TUMBLE call with the following output
TUMBLE(table, INTERNVAL "5" MINUTE)
||rowtime||window_start||window_end||
|2020-06-20 12:23:40|2020-06-20 12:20:00|2020-06-20 12:25:00|
if using the optional offset parameter
TUMBLE(table, INTERNVAL '5' MINUTE, INTERNVAL '2' MINUTE)
||rowtime||window_start||window_end||
|2020-06-20 12:23:40|2020-06-20 12:22:00|2020-06-20 12:27:00|
> Support OFFSET parameter in TUMBLE/HOP table functions
> -------------------------------------------------------
>
> Key: CALCITE-4000
> URL: https://issues.apache.org/jira/browse/CALCITE-4000
> Project: Calcite
> Issue Type: Sub-task
> Reporter: Rui Wang
> Assignee: Rui Wang
> Priority: Major
>
> TUMBLE/HOP have an optional "OFFSET" parameter to indicate how many time off
> from 0 for windowing. The OFFSET parameter is interval type.
> {code:java}
> TUMBLE(table, size [, offset])
> HOP(table, shift, size, [, offset])
> {code}
> One example:
> Say here is a TUMBLE call with the following output
> TUMBLE(table, INTERNVAL '5' MINUTE)
> ||rowtime||window_start||window_end||
> |2020-06-20 12:23:40|2020-06-20 12:20:00|2020-06-20 12:25:00|
> if using the optional offset parameter
> TUMBLE(table, INTERNVAL '5' MINUTE, INTERNVAL '2' MINUTE)
> ||rowtime||window_start||window_end||
> |2020-06-20 12:23:40|2020-06-20 12:22:00|2020-06-20 12:27:00|
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
