> how do I enable Blink planner support?
After flink-1.9 release, you can try Blink-planner.
>Since when is LATERAL TABLE available in Flink? Is it equivalent to using
>temporal tables?
LATERAL TABLE is table function in table, it is available in Flink for a long
time.[1]
It is different from t
t;
> Best, Jingsong Lee
>
>
> 来自阿里邮箱 iPhone版
> <https://itunes.apple.com/us/app/a-li-yun-you/id923828102?l=zh&ls=1&mt=8>
>
> --Original Mail --
> *From:*Flavio Pompermaier
> *Date:*2019-06-28 22:53:31
> *Recipient:*JingsongLe
The keys means joint primary keys, it is not list of keys, in your case, maybe
there is a single key?
Best, Jingsong Lee
来自阿里邮箱 iPhone版
--Original Mail --
From:Flavio Pompermaier
Date:2019-06-28 22:53:31
Recipient:JingsongLee
CC:user
Subject:Re: LookupableTab
Sorry I copied and pasted twice the current eval method...I'd do this:
public void eval(Object... keys) {
for (Object kkk : keys) {
Row keyRow = Row.of(kkk);
if (cache != null) {
List cachedRows = cache.getIfPresent(keyRow);
if (cachedRows != null) {
This could be a good fit, I'll try to dig into it and see if it can be
adapted to a REST service.
The only strange thing I see is that the key of the local cache is per
block of keys..am I wrong?
Shouldn't it cycle over the list of passed keys?
Right now it's the following:
Cache> cache;
public
Hi Flavio:
I just implement a JDBCLookupFunction[1]. You can use it as table function[2].
Or use
blink temporal table join[3] (Need blink planner support).
I add a google guava cache in JDBCLookupFunction with configurable cacheMaxSize
(avoid memory OOM) and cacheExpireMs(For the fresh of lookup
