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Currently, we convert array<Int> to array<BigInt> For example, the input array_sum([1, 2, 3]) can match function array_sum(Array<Int>) as well as array_sum(Array<BigInt>). But when a function has more than one argument, the function may be match incorrectly. For example, the input array_contains([1, 2, 3], 2147483648) will match the function array_contains(Array<BigInt>, BigInt), but the correct match should be array_contains(Array<Int>, Int) The correct match should be: array_contains([1, 2, 3], 1) match array_contains(Array<Int>, Int) array_contains([1, 2, 3], 2147483648) match array_contains(Array<Int>, Int) array_contains([2147483648, 2147483649, 2147483650], 2147483648) match array_contains(Array<BigInt>, BigInt) now is: array_contains([1, 2, 3], 1) match array_contains(Array<Int>, Int) array_contains([1, 2, 3], 2147483648) match array_contains(Array<BigInt>, BigInt) array_contains([2147483648, 2147483649, 2147483650], 2147483648) match array_contains(Array<BigInt>, BigInt) And this will cause some trouble. Assume that there are two functions being defined: Int array_functions(Array<Int>, Int) BigInt array_functions(Array<BigInt>, BigInt) And array_functions([1,2,3], 2147483648) will match BigInt array_functions(Array<BigInt>, BigInt), but the result type should not be BigInt, but should be Int.
Apache Doris
Doris is an MPP-based interactive SQL data warehousing for reporting and analysis. Its original name was Palo, developed in Baidu. After donated to Apache Software Foundation, it was renamed Doris.
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Doris provides high concurrent low latency point query performance, as well as high throughput queries of ad-hoc analysis.
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Doris provides batch data loading and real-time mini-batch data loading.
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Doris provides high availability, reliability, fault tolerance, and scalability.
The main advantages of Doris are the simplicity (of developing, deploying and using) and meeting many data serving requirements in a single system. For details, refer to Overview.
Official website: https://doris.apache.org/
License
Note
Some licenses of the third-party dependencies are not compatible with Apache 2.0 License. So you need to disable some Doris features to be complied with Apache 2.0 License. For details, refer to the
thirdparty/LICENSE.txt
Technology
Doris mainly integrates the technology of Google Mesa and Apache Impala, and it is based on a column-oriented storage engine and can communicate by MySQL client.
Compile and install
See Compilation
Getting start
See Basic Usage
Doris Connector
Doris provides support for Spark/Flink to read data stored in Doris through Connector, and also supports to write data to Doris through Connector.
Doris Manager
Doris provides one-click visual automatic installation and deployment, cluster management and monitoring tools for clusters.
Report issues or submit pull request
If you find any bugs, feel free to file a GitHub issue or fix it by submitting a pull request.
Contact Us
Contact us through the following mailing list.
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| dev@doris.apache.org | Development-related discussions | Subscribe | Unsubscribe | Archives |
Links
- Doris official site - https://doris.apache.org
- Developer Mailing list - dev@doris.apache.org. Mail to dev-subscribe@doris.apache.org, follow the reply to subscribe the mail list.
- Slack channel - Join the Slack