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### Cloudberry Database version
Cloudberry Database 1.7.0+dev.23.g200e3561 build 88554 commit:200e3561
### What happened
+WARNING: terminating connection because of crash of another server p…
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# related:
- [x] xxx
- [x] xxx
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1.创建表
CREATE TABLE `customers` (
`cust_id` int(11) NOT NULL COMMENT "",
`cust_name` varchar(150) NOT NULL COMMENT ""
) ENGINE=OLAP
PRIMARY KEY(`cust_id`)
DISTRIBUTED BY HASH(`cust_id`)
PRO…
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(you don't have to strictly follow this form)
## Question
**The concurrent query performance deteriorates seriously**
**Machine resource：** CPU80核/内存192G/硬盘240G
**server 3 nodes**
**read wor…
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### Search before asking
- [X] I had searched in the [issues](https://github.com/apache/seatunnel/issues?q=is%3Aissue+label%3A%22bug%22) and found no similar issues.
### What happened
When I use…
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This issue tracks features and tasks related to µWheel indexing.
**Goal:** Make µWheel the goto auxiliary data structure for speeding up temporal aggregation and filtering queries.
### Tracking …
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Within some contexts, especially serverless, the memory limits are very low in process. So it can be desirable when performing aggregations in process, or if also streaming out to the end user, to be …
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I believe we are not displaying the message "The current query might contain a maximum of…". I think that was removed with the olap client deprecation.
@davelandry Should we bring back that message?…
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Theoretically we should be able to run distributed Unipop queries on Spark or something. Some of Unipop's data sources even have Hadoop integration (e.g. Elasticsearch RDD, Jdbc RDD, etc).
Utilizing …
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The COOL can support the following OLAP query:
```sql
SELECT cout(*), sum(O_TOTALPRICE)
FROM TPC_H WHERE O_ORDERPRIORITY = 2-HIGH AND R_NAME = EUROPE
GROUP BY N_NAME,R_NAME
HAVING O_ORDERDATE >…