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https://issues.apache.org/jira/browse/KAFKA-8388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Yu updated KAFKA-8388:
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Description:
Currently, in Kafka Streams, KTable API does not allow users to query for
entries with a specific timestamp. The goal of this ticket is to allow a couple
of things:
* Retrieve entries in KTable that were inserted in the last {{K}} milliseconds
where {{K}} could be determined by the user
* Find key-value pairs which were put into the KTable in a specified time
interval.
KTable already has methods like {{filter}} and {{filterNot}}, but the
information available to the user in these methods does not include the publish
timestamp.
A couple of things we could do to attack this issue:
# Modify the current {{filter}} and {{filterNot}} methods so that the
timestamp information is also available to the user for reference.
# Add new methods which creates a new KTable based solely on timestamp.
was:
Currently, in Kafka Streams, KTable API does not allow users to query for
entries with a specific timestamp. The goal of this ticket is to allow a couple
of things:
* Retrieve entries in KTable that were inserted in the last {{K}} milliseconds
where {{K}} could be determined by the user
* Find key-value pairs which were put into the KTable in a specified time
interval.
KTable already has methods like {{filter}} and {{filterNot}}, but the
information given to the user does not include the publish timestamp.
A couple of things we could do to attack this issue:
# Modify the current {{filter}} and {{filterNot}} methods so that the
timestamp information is also available to the user for reference.
# Add new methods which creates a new KTable based solely on timestamp.
> Add methods to query for entries in KTable using timestamp
> ----------------------------------------------------------
>
> Key: KAFKA-8388
> URL: https://issues.apache.org/jira/browse/KAFKA-8388
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Richard Yu
> Priority: Major
> Labels: needs-kip
>
> Currently, in Kafka Streams, KTable API does not allow users to query for
> entries with a specific timestamp. The goal of this ticket is to allow a
> couple of things:
> * Retrieve entries in KTable that were inserted in the last {{K}}
> milliseconds where {{K}} could be determined by the user
> * Find key-value pairs which were put into the KTable in a specified time
> interval.
> KTable already has methods like {{filter}} and {{filterNot}}, but the
> information available to the user in these methods does not include the
> publish timestamp.
> A couple of things we could do to attack this issue:
> # Modify the current {{filter}} and {{filterNot}} methods so that the
> timestamp information is also available to the user for reference.
> # Add new methods which creates a new KTable based solely on timestamp.
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