A typical use case that will genreate updates (meaning not append only) is
a non-widown groupy-by aggregation, like "select user, count(url) from
clicks group by user".
You can refer to the flink doc at
https://ci.apache.org/projects/flink/flink-docs-release-1.9/dev/table/streaming/dynamic_tables.
Hi,
Doesn’t the included example `ExampleIntegrationTest` demonstrate the idea of
> inject special test sources and test sinks in your tests.
?
Piotrek
> On 11 Nov 2019, at 13:44, Hung wrote:
>
> Hi guys,
>
> I found the testing part mentioned
>
> make sources and sinks pluggable in your
Respected Sir,
This is my code of flink gelly:
for(Vertex vertex : node_set) {
System.out.println(vertex);
graph_copy.removeVertevertex);
temp.add(vertex);
}
For some reason "removeVertex" is not working even on giving correct parameters.
Kindly resolve the issue. Given a list of edges, remo
Hi Piyush,
Could you verify that the type of the `timestamp` field in the table
my_kafka_stream is of TIMESTAMP(3) *ROWTIME* type? Could you share how
you create this table?
What you are doing should work and what I suspect is that the
`timestamp` field in the `my_kafka_stream` changed the type s
Hi Vasily,
unfortunately, this is known issue with Flink, you could read discussion
under
https://cwiki.apache.org/confluence/display/FLINK/FLIP-17+Side+Inputs+for+DataStream+API
.
At the moment I have seen 3 solutions for this issue:
1. You buffer fact stream in local state before broadcast is
Hi Dawid,
Thanks for getting back, the *ROWTIME* modifier did ring a bell and I was able
to find the issue. We are registering the inner table correctly (timestamp is
of type timestamp(3) rowtime), but we had an intermediate step where we
converted that to a Datastream to optionally add custom
Hi Polarisary:
Maybe I see what you mean. You want to use the upsert mode for an append
stream without keyFields.
In fact, both isAppend and keyFields are set automatically by the planner
framework. You can't control them.
So yes, it is related to sql, only upsert stream can be inserted into sink
