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https://wyqz.top/p/454636061.html
本文知识点均为从网络或其他地方搜集整理而来,提到的习题均无答案,完全不具备权威性质,作者不对看本文造成的后果负责,请合理参考。
Linux指令基本都是基本指令,输入输出流,统计行数,复制,文件权限修改等等大题会考swap分区构建的具体步骤考
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### Feature description
dlt should support geo types like shapes, geometries & geographies and different CRS as best as possible to allow data loading/transfer of such data in spatial databases like …
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https://www.dropbox.com/s/nnei6kz9dudoz3l/ReadOnlySlave.java?dl=0
Here's a first cut at providing functionality to send reads to the slaves and keep the masters open for write. It falls back to read…
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How does this library work and what is the structure of the output files?
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(you don't have to strictly follow this form)
## Question
create table
```
CREATE TABLE measure_olap.olap_comm_deal_margin_agreement_indicator_di_cube_v37
(
...
)
ENGINE = CnchMergeTree
…
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Random thoughts around decentralized and permissionless data lakes.
- An easy target is blockchain data.
- Everything should be content adressed and inmutable! Easy to get with chain data. I shou…
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**Describe the bug**
```java
2021-03-03 15:33:48,344 WARN 802317 [StmtExecutor.execute():302] execute Exception. errCode = 2, detailMessage = Unexpected exception: Failed analysis after expr substit…
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### Describe the enhancement requested
This could be aligned with the new [Spark variant type](https://github.com/apache/spark/blob/master/common/variant/README.md) or it could not be.
### Compo…
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In DuckDB, each connection can only process one query at a time. The runtime currently opens one DuckDB connection and runs all queries sequentially on that connection. We want to add a connection poo…