Hi Esa, Have you checked out the flink documentation for this topic[1]? Is there something you are missing from there? Also the MATCH_RECOGNIZE is described in the SQL:2016 standard[2].
For the Flink CEP library, yes it is inspired by the paper you mentioned. Best, Dawid [1] https://ci.apache.org/projects/flink/flink-docs-release-1.8/dev/table/streaming/match_recognize.html [2] https://standards.iso.org/ittf/PubliclyAvailableStandards/c065143_ISO_IEC_TR_19075-5_2016.zip On 11/04/2019 10:52, Esa Heikkinen (TAU) wrote: > > Hi > > > > Is there any good scientific papers about using SQL MATCH_RECOGNIZE in > Flink and CEP ? > > > > The only one good paper about Flink and CEP that I have received was > “Efficient Pattern Matching over Event Streams” (SIGMOD 2008). Its > SASE+ Event Pattern Language (EPL) is best I have met. I have been > told that FlinkCEP is based on this. > > > > BR Esa > > > > *From:*Fabian Hueske <fhue...@gmail.com> > *Sent:* Thursday, April 11, 2019 11:33 AM > *To:* Esa Heikkinen (TAU) <esa.heikki...@tuni.fi> > *Cc:* Dian Fu <dian0511...@gmail.com>; jincheng sun > <sunjincheng...@gmail.com>; user@flink.apache.org > *Subject:* Re: FlinkCEP and SQL? > > > > Hi Esa, > > > > Flink's implementation of SQL MATCH_RECOGNIZE is based on it's CEP > library, i.e., they share the same implementation. > > > > Best, Fabian > > > > Am Do., 11. Apr. 2019 um 10:29 Uhr schrieb Esa Heikkinen (TAU) > <esa.heikki...@tuni.fi <mailto:esa.heikki...@tuni.fi>>: > > Hi > > > > Is SQL CEP based (old) FlinkCEP at all and are SQL CEP and > FlinkCEP completely separate ? > > > > BR Esa > > > > *From:*Dian Fu <dian0511...@gmail.com <mailto:dian0511...@gmail.com>> > *Sent:* Thursday, April 4, 2019 2:37 PM > *To:* Esa Heikkinen (TAU) <esa.heikki...@tuni.fi > <mailto:esa.heikki...@tuni.fi>> > *Cc:* jincheng sun <sunjincheng...@gmail.com > <mailto:sunjincheng...@gmail.com>>; user@flink.apache.org > <mailto:user@flink.apache.org> > *Subject:* Re: FlinkCEP and SQL? > > > > Should the all sources be combined into one big table before > operations with SQL CEP? > > > > Yes, you should combine them into one table/stream. > > > > Regards, > > Dian > > > > 在 2019年4月4日，下午7:11，Esa Heikkinen (TAU) > <esa.heikki...@tuni.fi <mailto:esa.heikki...@tuni.fi>> 写道： > > > > Hi > > > > Thank you for the information. How this SQL CEP is applicable > for situation where there are many sources with different type > of events ? Should the all sources be combined into one big > table before operations with SQL CEP? > > > > BR Esa > > > > *From:* jincheng sun <sunjincheng...@gmail.com > <mailto:sunjincheng...@gmail.com>> > *Sent:* Thursday, April 4, 2019 1:05 PM > *To:* Esa Heikkinen (TAU) <esa.heikki...@tuni.fi > <mailto:esa.heikki...@tuni.fi>> > *Cc:* user@flink.apache.org <mailto:user@flink.apache.org> > *Subject:* Re: FlinkCEP and SQL? > > > > Hi BR Esa, > > CEP is available in Flink SQL, Please the detail > here: > https://ci.apache.org/projects/flink/flink-docs-release-1.7/dev/table/sql.html#pattern-recognition > > Best, > > Jincheng > > > > Esa Heikkinen (TAU) <esa.heikki...@tuni.fi > <mailto:esa.heikki...@tuni.fi>> 于2019年4月4日周四 下午4:44写道： > > Hi > > > > What is the situation of FlinkCEP and SQL? > > > > Is it already possible to use SQL in CEP? > > > > Is there any example cases where SQL is used in CEP? > > > > BR Esa > > >
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