?????? Adjust clacite to support kylin query

[Neters]

I want to fix the Sql generated by calcite's JDBC adpater to be what kylin 
expects. But i do not know how to begin


Could you guys give me some suggestions? It seems a big challenge for me to 
understand calcite in a short time.


Thanks




--  --
??: "Julian Hyde"<jh...@apache.org>;
: 2018??2??6??(??) 3:53
??: "dev"<dev@calcite.apache.org>;

????: Re: Adjust clacite to support kylin query



If the query requires more than one data source (Kylin and something else) then 
a logical plan is necessary. If it??s just Kylin then what you suggest would 
work in principle, but it would be hard to make it work in practice.

It might be simpler to fix the SQL generated by Calcite??s JDBC adapter to be 
what Kylin expects. Have you tried adding a Kylin dialect, making sure it gets 
used by RelToSqlConverter / JdbcImplementor?

Julian


> On Feb 4, 2018, at 9:53 PM, Neters <net...@foxmail.com> wrote:
> 
> Dear Julian,
> 
> 
> Have a good day.
> 
> 
> Yes. I have tried to connect to kylin via JDBC adapter, but the sql string 
> has been changed to which kylin engine does not support(sql string was parsed 
> not correctly ). 
> 
> 
> The sql query process i understand is that : 
> 
> 
> avatica jdbc driver gets connection and sumit sql string -->avatica server 
> receives the sql string->calcite convertes the sql string to a logical plan-->
> calcite applys planning rules to optimize the query process--> calcite 
> converts the sql string back and submits it to the database.
> 
> 
> The description above is right?
> 
> 
> I am wondering if it is possible to bypass the logical plan convertion. After 
> avatica server receives the sql string, calcite posts the sql string to kylin 
> rest server by kylin jdbc driver defined in the json model file? As you can 
> see, the implements of kylin jdbc is as following:
> 1.register kylin jdbc driver
> 2.get statement
> 3.set query sql string and execute query( excute query by posting sql string 
> to kylin rest server)
> 
> 
> If bypass issue could be carried out to query kylin, there might be a point 
> to bypass the convertion to logical plan.
> 
> 
> 
> 
> 
> 
> 
> My avatica server source archive is as following:
> project name
> --java code--
>+BiQueryServer.java
>+ModelMetaFactory.java
>--resources--
>+model.json
> 
> 
> BiQueryServer.java-
> public class BiQueryServer {
>public static void main(String[] args) {
>List argsList = new ArrayList();
>argsList.add("com.w3sun.sqlengine.ModelMetaFactory");
>argsList.add("org.apache.calcite.avatica.jdbc.JdbcMeta");
> 
> 
>for (String arg : args) {
>argsList.add(arg);
>}
> 
> 
>String[] argsArray = (String[]) argsList.toArray(new 
> String[argsList.size()]);
>try {
>org.apache.calcite.avatica.server.Main.main(argsArray);
>} catch (InterruptedException e) {
>e.printStackTrace();
>} catch (ClassNotFoundException e) {
>e.printStackTrace();
>} catch (IllegalAccessException e) {
>e.printStackTrace();
>} catch (InstantiationException e) {
>e.printStackTrace();
>}
>}
> }
> 
> ModelMetaFactory.java-
> public class ModelMetaFactory implements Meta.Factory {
>private final String modelFile = 
> this.getClass().getResource("/model.json").getPath().substring(1);
>private final String localJdbcUrl = "jdbc:calcite:";
> 
> 
>public void printMetaInfo(String meta) {
>System.out.println("[TnpmConnectionFactory.create] Implement with " + 
> meta);
> 
> 
>}
> 
> 
>public Meta create(List list) {
>try {
>if (list.size() > 0 && 
> list.get(0).equals("org.apache.calcite.avatica.jdbc.JdbcMeta")) {
>return new JdbcMeta(localJdbcUrl + "model=" + (list.size() > 1 
> ? list.get(1) : modelFile));
>} else {
>return null;
>}
>} catch (SQLException e) {
>t

?????? Adjust clacite to support kylin query

[Neters]

Dear Julian,


Thank you for your response. OK, i will work on it.


Best Regards




--  --
??: "Julian Hyde";<jh...@apache.org>;
: 2018??2??6??(??) 11:09
??: "dev"<dev@calcite.apache.org>;

????: Re: Adjust clacite to support kylin query



Re 3. Use a good IDE (I use IntelliJ, others use Eclipse). Find, run and debug 
unit tests applicable to your case.


> On Feb 5, 2018, at 6:37 PM, Neters <net...@foxmail.com> wrote:
> 
> Dear Julian,
> 
> 
> Have a good day even if you UTC time is 2:00 am.
> 
> 
> I will have a try to implement the first method. Now we have only kylin 
> datasource to deal with.
> 
> 
> If the practice fails i will try the second way or write an adapter. Because 
> there are some difficult for me as following,or to say some questions:
> 
> 
> 1.I thought there are so many source code in calcite that i could not build 
> the entire construction in my mind.
> 2.What knowledge should be prepared to understand the core thought of 
> calcite, particulary about the data type such as RelDataType,or planing rules 
> or the process for optimizing the sql parser process.
> 3.The third question may be not associated with calcite, it is just a 
> ordinary question:how to read the source code in opensource project quickly. 
> It is need to understand every detail in every source code file? I am a 
> newbie in opensouce project modifying.
> 
> 
> If the other calcite project guys have good advice to learn opensource 
> project source reading,just reply me.
> 
> 
> Best Regards To All
> 
> 
> neters
> 
> 
> 
> 
> --  ----------
> ??: "Julian Hyde";<jh...@apache.org>;
> : 2018??2??6??(??) 3:53
> ??: "dev"<dev@calcite.apache.org>;
> 
> : Re: Adjust clacite to support kylin query
> 
> 
> 
> If the query requires more than one data source (Kylin and something else) 
> then a logical plan is necessary. If it??s just Kylin then what you suggest 
> would work in principle, but it would be hard to make it work in practice.
> 
> It might be simpler to fix the SQL generated by Calcite??s JDBC adapter to be 
> what Kylin expects. Have you tried adding a Kylin dialect, making sure it 
> gets used by RelToSqlConverter / JdbcImplementor?
> 
> Julian
> 
> 
>> On Feb 4, 2018, at 9:53 PM, Neters <net...@foxmail.com> wrote:
>> 
>> Dear Julian,
>> 
>> 
>> Have a good day.
>> 
>> 
>> Yes. I have tried to connect to kylin via JDBC adapter, but the sql string 
>> has been changed to which kylin engine does not support(sql string was 
>> parsed not correctly ). 
>> 
>> 
>> The sql query process i understand is that : 
>> 
>> 
>> avatica jdbc driver gets connection and sumit sql string -->avatica server 
>> receives the sql string->calcite convertes the sql string to a logical 
>> plan-->
>> calcite applys planning rules to optimize the query process--> calcite 
>> converts the sql string back and submits it to the database.
>> 
>> 
>> The description above is right?
>> 
>> 
>> I am wondering if it is possible to bypass the logical plan convertion. 
>> After avatica server receives the sql string, calcite posts the sql string 
>> to kylin rest server by kylin jdbc driver defined in the json model file? As 
>> you can see, the implements of kylin jdbc is as following:
>> 1.register kylin jdbc driver
>> 2.get statement
>> 3.set query sql string and execute query( excute query by posting sql string 
>> to kylin rest server)
>> 
>> 
>> If bypass issue could be carried out to query kylin, there might be a point 
>> to bypass the convertion to logical plan.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> My avatica server source archive is as following:
>> project name
>>--java code--
>>   +BiQueryServer.java
>>   +ModelMetaFactory.java
>>   --resources--
>>   +model.json
>> 
>> 
>> BiQueryServer.java-
>> public class BiQueryServer {
>>   public static void main(String[] args) {
>>   List argsList = new ArrayList();
>>   argsList.add("com.w3s

Re: Adjust clacite to support kylin query

[Julian Hyde]

Re 3. Use a good IDE (I use IntelliJ, others use Eclipse). Find, run and debug 
unit tests applicable to your case.


> On Feb 5, 2018, at 6:37 PM, Neters <net...@foxmail.com> wrote:
> 
> Dear Julian,
> 
> 
> Have a good day even if you UTC time is 2:00 am.
> 
> 
> I will have a try to implement the first method. Now we have only kylin 
> datasource to deal with.
> 
> 
> If the practice fails i will try the second way or write an adapter. Because 
> there are some difficult for me as following,or to say some questions:
> 
> 
> 1.I thought there are so many source code in calcite that i could not build 
> the entire construction in my mind.
> 2.What knowledge should be prepared to understand the core thought of 
> calcite, particulary about the data type such as RelDataType,or planing rules 
> or the process for optimizing the sql parser process.
> 3.The third question may be not associated with calcite, it is just a 
> ordinary question:how to read the source code in opensource project quickly. 
> It is need to understand every detail in every source code file? I am a 
> newbie in opensouce project modifying.
> 
> 
> If the other calcite project guys have good advice to learn opensource 
> project source reading,just reply me.
> 
> 
> Best Regards To All
> 
> 
> neters
> 
> 
> 
> 
> -- 原始邮件 ------
> 发件人: "Julian Hyde";<jh...@apache.org>;
> 发送时间: 2018年2月6日(星期二) 凌晨3:53
> 收件人: "dev"<dev@calcite.apache.org>;
> 
> 主题: Re: Adjust clacite to support kylin query
> 
> 
> 
> If the query requires more than one data source (Kylin and something else) 
> then a logical plan is necessary. If it’s just Kylin then what you suggest 
> would work in principle, but it would be hard to make it work in practice.
> 
> It might be simpler to fix the SQL generated by Calcite’s JDBC adapter to be 
> what Kylin expects. Have you tried adding a Kylin dialect, making sure it 
> gets used by RelToSqlConverter / JdbcImplementor?
> 
> Julian
> 
> 
>> On Feb 4, 2018, at 9:53 PM, Neters <net...@foxmail.com> wrote:
>> 
>> Dear Julian,
>> 
>> 
>> Have a good day.
>> 
>> 
>> Yes. I have tried to connect to kylin via JDBC adapter, but the sql string 
>> has been changed to which kylin engine does not support(sql string was 
>> parsed not correctly ). 
>> 
>> 
>> The sql query process i understand is that : 
>> 
>> 
>> avatica jdbc driver gets connection and sumit sql string -->avatica server 
>> receives the sql string->calcite convertes the sql string to a logical 
>> plan-->
>> calcite applys planning rules to optimize the query process--> calcite 
>> converts the sql string back and submits it to the database.
>> 
>> 
>> The description above is right?
>> 
>> 
>> I am wondering if it is possible to bypass the logical plan convertion. 
>> After avatica server receives the sql string, calcite posts the sql string 
>> to kylin rest server by kylin jdbc driver defined in the json model file? As 
>> you can see, the implements of kylin jdbc is as following:
>> 1.register kylin jdbc driver
>> 2.get statement
>> 3.set query sql string and execute query( excute query by posting sql string 
>> to kylin rest server)
>> 
>> 
>> If bypass issue could be carried out to query kylin, there might be a point 
>> to bypass the convertion to logical plan.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> My avatica server source archive is as following:
>> project name
>>--java code--
>>   +BiQueryServer.java
>>   +ModelMetaFactory.java
>>   --resources--
>>   +model.json
>> 
>> 
>> BiQueryServer.java-
>> public class BiQueryServer {
>>   public static void main(String[] args) {
>>   List argsList = new ArrayList();
>>   argsList.add("com.w3sun.sqlengine.ModelMetaFactory");
>>   argsList.add("org.apache.calcite.avatica.jdbc.JdbcMeta");
>> 
>> 
>>   for (String arg : args) {
>>   argsList.add(arg);
>>   }
>> 
>> 
>>   String[] argsArray = (String[]) argsList.toArray(new 
>> String[argsList.size()]);
>&g

?????? Adjust clacite to support kylin query

[Neters]

Dear Julian,


Have a good day even if you UTC time is 2:00 am.


I will have a try to implement the first method. Now we have only kylin 
datasource to deal with.


If the practice fails i will try the second way or write an adapter. Because 
there are some difficult for me as following,or to say some questions:


1.I thought there are so many source code in calcite that i could not build the 
entire construction in my mind.
2.What knowledge should be prepared to understand the core thought of calcite, 
particulary about the data type such as RelDataType,or planing rules or the 
process for optimizing the sql parser process.
3.The third question may be not associated with calcite, it is just a ordinary 
question:how to read the source code in opensource project quickly. It is need 
to understand every detail in every source code file? I am a newbie in 
opensouce project modifying.


If the other calcite project guys have good advice to learn opensource project 
source reading,just reply me.


Best Regards To All


neters




--  --
??: "Julian Hyde";<jh...@apache.org>;
: 2018??2??6??(??) 3:53
??: "dev"<dev@calcite.apache.org>;

????: Re: Adjust clacite to support kylin query



If the query requires more than one data source (Kylin and something else) then 
a logical plan is necessary. If it??s just Kylin then what you suggest would 
work in principle, but it would be hard to make it work in practice.

It might be simpler to fix the SQL generated by Calcite??s JDBC adapter to be 
what Kylin expects. Have you tried adding a Kylin dialect, making sure it gets 
used by RelToSqlConverter / JdbcImplementor?

Julian


> On Feb 4, 2018, at 9:53 PM, Neters <net...@foxmail.com> wrote:
> 
> Dear Julian,
> 
> 
> Have a good day.
> 
> 
> Yes. I have tried to connect to kylin via JDBC adapter, but the sql string 
> has been changed to which kylin engine does not support(sql string was parsed 
> not correctly ). 
> 
> 
> The sql query process i understand is that : 
> 
> 
> avatica jdbc driver gets connection and sumit sql string -->avatica server 
> receives the sql string->calcite convertes the sql string to a logical plan-->
> calcite applys planning rules to optimize the query process--> calcite 
> converts the sql string back and submits it to the database.
> 
> 
> The description above is right?
> 
> 
> I am wondering if it is possible to bypass the logical plan convertion. After 
> avatica server receives the sql string, calcite posts the sql string to kylin 
> rest server by kylin jdbc driver defined in the json model file? As you can 
> see, the implements of kylin jdbc is as following:
> 1.register kylin jdbc driver
> 2.get statement
> 3.set query sql string and execute query( excute query by posting sql string 
> to kylin rest server)
> 
> 
> If bypass issue could be carried out to query kylin, there might be a point 
> to bypass the convertion to logical plan.
> 
> 
> 
> 
> 
> 
> 
> My avatica server source archive is as following:
> project name
> --java code--
>+BiQueryServer.java
>+ModelMetaFactory.java
>--resources--
>+model.json
> 
> 
> BiQueryServer.java-
> public class BiQueryServer {
>public static void main(String[] args) {
>List argsList = new ArrayList();
>argsList.add("com.w3sun.sqlengine.ModelMetaFactory");
>argsList.add("org.apache.calcite.avatica.jdbc.JdbcMeta");
> 
> 
>for (String arg : args) {
>argsList.add(arg);
>}
> 
> 
>String[] argsArray = (String[]) argsList.toArray(new 
> String[argsList.size()]);
>try {
>org.apache.calcite.avatica.server.Main.main(argsArray);
>} catch (InterruptedException e) {
>e.printStackTrace();
>} catch (ClassNotFoundException e) {
>e.printStackTrace();
>} catch (IllegalAccessException e) {
>e.printStackTrace();
>} catch (InstantiationException e) {
>e.printStackTrace();
>}
>}
> }
> 
> ModelMetaFactory.java-
> public class ModelMetaFactory implements Meta.Factory {
>private final String modelFile = 
> this.g

Re: Adjust clacite to support kylin query

[Julian Hyde]

If the query requires more than one data source (Kylin and something else) then 
a logical plan is necessary. If it’s just Kylin then what you suggest would 
work in principle, but it would be hard to make it work in practice.

It might be simpler to fix the SQL generated by Calcite’s JDBC adapter to be 
what Kylin expects. Have you tried adding a Kylin dialect, making sure it gets 
used by RelToSqlConverter / JdbcImplementor?

Julian


> On Feb 4, 2018, at 9:53 PM, Neters <net...@foxmail.com> wrote:
> 
> Dear Julian,
> 
> 
> Have a good day.
> 
> 
> Yes. I have tried to connect to kylin via JDBC adapter, but the sql string 
> has been changed to which kylin engine does not support(sql string was parsed 
> not correctly ). 
> 
> 
> The sql query process i understand is that : 
> 
> 
> avatica jdbc driver gets connection and sumit sql string -->avatica server 
> receives the sql string->calcite convertes the sql string to a logical plan-->
> calcite applys planning rules to optimize the query process--> calcite 
> converts the sql string back and submits it to the database.
> 
> 
> The description above is right?
> 
> 
> I am wondering if it is possible to bypass the logical plan convertion. After 
> avatica server receives the sql string, calcite posts the sql string to kylin 
> rest server by kylin jdbc driver defined in the json model file? As you can 
> see, the implements of kylin jdbc is as following:
> 1.register kylin jdbc driver
> 2.get statement
> 3.set query sql string and execute query( excute query by posting sql string 
> to kylin rest server)
> 
> 
> If bypass issue could be carried out to query kylin, there might be a point 
> to bypass the convertion to logical plan.
> 
> 
> 
> 
> 
> 
> 
> My avatica server source archive is as following:
> project name
> --java code--
>+BiQueryServer.java
>+ModelMetaFactory.java
>--resources--
>+model.json
> 
> 
> BiQueryServer.java-
> public class BiQueryServer {
>public static void main(String[] args) {
>List argsList = new ArrayList();
>argsList.add("com.w3sun.sqlengine.ModelMetaFactory");
>argsList.add("org.apache.calcite.avatica.jdbc.JdbcMeta");
> 
> 
>for (String arg : args) {
>argsList.add(arg);
>}
> 
> 
>String[] argsArray = (String[]) argsList.toArray(new 
> String[argsList.size()]);
>try {
>org.apache.calcite.avatica.server.Main.main(argsArray);
>} catch (InterruptedException e) {
>e.printStackTrace();
>} catch (ClassNotFoundException e) {
>e.printStackTrace();
>} catch (IllegalAccessException e) {
>e.printStackTrace();
>} catch (InstantiationException e) {
>e.printStackTrace();
>}
>}
> }
> 
> ModelMetaFactory.java-
> public class ModelMetaFactory implements Meta.Factory {
>private final String modelFile = 
> this.getClass().getResource("/model.json").getPath().substring(1);
>private final String localJdbcUrl = "jdbc:calcite:";
> 
> 
>public void printMetaInfo(String meta) {
>System.out.println("[TnpmConnectionFactory.create] Implement with " + 
> meta);
> 
> 
>}
> 
> 
>public Meta create(List list) {
>try {
>if (list.size() > 0 && 
> list.get(0).equals("org.apache.calcite.avatica.jdbc.JdbcMeta")) {
>return new JdbcMeta(localJdbcUrl + "model=" + (list.size() > 1 
> ? list.get(1) : modelFile));
>} else {
>return null;
>}
>} catch (SQLException e) {
>throw new RuntimeException(e);
>}
>}
> }
> 
> --model.json--
> {
>  "version": "1.0",
>  "defaultSchema": "kylin",
>  "schemas": [
>{
>  "name": "kylin",
>  "type": "custom",
>  "factory": "org.apache.calcite.adapter.jdbc.JdbcSchema$Fac

?????? Adjust clacite to support kylin query

[Neters]

Dear Julian,


Have a good day.


Yes. I have tried to connect to kylin via JDBC adapter, but the sql string has 
been changed to which kylin engine does not support(sql string was parsed not 
correctly ). 


The sql query process i understand is that : 


avatica jdbc driver gets connection and sumit sql string -->avatica server 
receives the sql string->calcite convertes the sql string to a logical plan-->
calcite applys planning rules to optimize the query process--> calcite converts 
the sql string back and submits it to the database.


The description above is right?


I am wondering if it is possible to bypass the logical plan convertion. After 
avatica server receives the sql string, calcite posts the sql string to kylin 
rest server by kylin jdbc driver defined in the json model file? As you can 
see, the implements of kylin jdbc is as following:
1.register kylin jdbc driver
2.get statement
3.set query sql string and execute query( excute query by posting sql string to 
kylin rest server)


If bypass issue could be carried out to query kylin, there might be a point to 
bypass the convertion to logical plan.







My avatica server source archive is as following:
project name
 --java code--
+BiQueryServer.java
+ModelMetaFactory.java
--resources--
+model.json


BiQueryServer.java-
public class BiQueryServer {
public static void main(String[] args) {
List argsList = new ArrayList();
argsList.add("com.w3sun.sqlengine.ModelMetaFactory");
argsList.add("org.apache.calcite.avatica.jdbc.JdbcMeta");


for (String arg : args) {
argsList.add(arg);
}


String[] argsArray = (String[]) argsList.toArray(new 
String[argsList.size()]);
try {
org.apache.calcite.avatica.server.Main.main(argsArray);
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
}
}
}

ModelMetaFactory.java-
public class ModelMetaFactory implements Meta.Factory {
private final String modelFile = 
this.getClass().getResource("/model.json").getPath().substring(1);
private final String localJdbcUrl = "jdbc:calcite:";


public void printMetaInfo(String meta) {
System.out.println("[TnpmConnectionFactory.create] Implement with " + 
meta);


}


public Meta create(List list) {
try {
if (list.size() > 0 && 
list.get(0).equals("org.apache.calcite.avatica.jdbc.JdbcMeta")) {
return new JdbcMeta(localJdbcUrl + "model=" + (list.size() > 1 
? list.get(1) : modelFile));
} else {
return null;
}
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
}

--model.json--
{
  "version": "1.0",
  "defaultSchema": "kylin",
  "schemas": [
{
  "name": "kylin",
  "type": "custom",
  "factory": "org.apache.calcite.adapter.jdbc.JdbcSchema$Factory",
  "operand": {
"jdbcDriver": "org.apache.kylin.jdbc.Driver",
"jdbcUrl":"jdbc:kylin://192.18.23.15:7070/test_project",
"jdbcUser": "ADMIN",
    "jdbcPassword": "KYLIN"
  }
}
  ]
}





Best Regards


Neters


--  --
??: "Julian Hyde";<jh...@apache.org>;
: 2018??2??3??(??) 2:31
??: "dev"<dev@calcite.apache.org>;

: Re: Adjust clacite to support kylin query



Have you tried connecting to Kylin (and MySQL) via the JDBC adapter?

(I know Kylin has Calcite inside, but they don??t package it as an adapter, so 
we??re forced to treat them as a black box.)

Julian


> On Feb 2, 2018, at 4:13 AM, Neters <net...@foxmail.com> wrote:
> 
> Hi guys,

Re: Adjust clacite to support kylin query

[Julian Hyde]

Have you tried connecting to Kylin (and MySQL) via the JDBC adapter?

(I know Kylin has Calcite inside, but they don’t package it as an adapter, so 
we’re forced to treat them as a black box.)

Julian


> On Feb 2, 2018, at 4:13 AM, Neters  wrote:
> 
> Hi guys,
> 
> Good day.
> 
> Sorry guys,the mail system remove my pic, so i make it attachment.
> 
> I want to query apache kylin by calcite,but i did not find the adapter for 
> kylin. So i decide to modify the code attached in kylin source code.
> My frame like this:
>
>   avatica jdbc client  
>  |
>  |
> -
>|  calcite   |
>--
>/   |   \
>  kylin  es   mysql
> 
> 
>
> 
> Could you please give some constructive support?
> 
> Best Regards
> 
> 

Adjust clacite to support kylin query

[Neters]

Hi guys,


Good day.


Sorry guys,the mail system remove my pic, so i make it attachment.


I want to query apache kylin by calcite,but i did not find the adapter for 
kylin. So i decide to modify the code attached in kylin source code.
My frame like this:
   
  avatica jdbc client  
 |
 |
-
   |  calcite   |
   --
   /   |   \
 kylin  es   mysql




   


Could you please give some constructive support?


Best Regards

Re: Adjust clacite to support kylin query

[Michael Mior]

There's no attachment on this message either.

--
Michael Mior
mm...@apache.org

2018-01-25 23:25 GMT-05:00 Neters :

> Hi guys,
>
> Good day.
>
> Sorry guys,the mail system remove my pic, so i make it attachment.
>
> I want to query apache kylin by calcite,but i did not find the adapter for
> kylin. So i decide to modify the code attached in kylin source code.
> My frame like this:
>
> Could you please give some constructive support?
>
> Best Regards
>
>
>

Adjust clacite to support kylin query

[Neters]

Hi guys,


Good day.


Sorry guys,the mail system remove my pic, so i make it attachment.


I want to query apache kylin by calcite,but i did not find the adapter for 
kylin. So i decide to modify the code attached in kylin source code.
My frame like this:



Could you please give some constructive support?


Best Regards

Adjust clacite to support kylin query

[Neters]

Hi guys,


Good day.


I want to query apache kylin by calcite,but i did not find the adapter for 
kylin. So i decide to modify the code attached in kylin source code.
My frame like this:



Could you please give some constructive support?


Best Regards