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阿里云文档 2025-01-16

SQL查询数据时支持计算下推的算子

多元索引提供了条件过滤、聚合、排序等功能，在创建多元索引后，使用SQL查询时，系统能够充分利用多元索引的计算能力，将部分SQL计算任务下推到多元索引执行，避免全表扫描，从而提高计算效率。

问答 2024-06-06 来自：开发者社区

在Blink SQL逻辑优化中，如何通过去重减少输出到sink算子的数据量？

问答 2024-04-24 来自：开发者社区

Flink为什么最终生成的图只有sql的链路 datastream api的算子不生成啊？

Flink同时使用sql api执行入库操作然后还有另一条链路用 stream api进行数据湖入库操作为什么最终生成的图只有sql的链路 datastream api的算子不生成啊？

问答 2024-03-19 来自：开发者社区

Flink CDC 里flink sql >= 这种底层不是filter算子么？

问答 2024-01-30 来自：开发者社区

OceanBase数据库这个trace_id是算子级别还是一整个sql级别呢？

OceanBase数据库这个trace_id是算子级别还是一整个sql级别呢？这个查询出来的id一直在变化

问答 2023-12-18 来自：开发者社区

Flink教程（17）- Flink Table与SQL（案例与SQL算子）

01 引言在前面的博客，我们学习了Flink的TableAP和SQL，有兴趣的同学可以参阅下：《Flink教程（01）- Flink知识图谱》《Flink教程（02）- Flink入门》《Flink教程（03）- Flink环境搭建》《Flink教程（04）- Flink入门案例》《Flink教程（05）- Flink原理简单分析》《Flink教程（06）- Flink批流一体API（Sourc....

问答 2023-11-16 来自：开发者社区

Flink CDC中flink sql 有拆分算子链的写法吗？

问答 2023-09-20 来自：开发者社区

flink sql中间insert xx select xx 的算子可以设置并行度么？

flink sql除了source 和sink，中间insert xx select xx 的算子可以设置并行度么？embed 配置如下：

问答 2023-07-25 来自：开发者社区

我想问下，Flink中为什么我在用datastream的算子时，一运行就报错，如果改用sql的方式？

我想问下，Flink中为什么我在用datastream的算子时，一运行就报错，如果改用sql的方式就正常，什么原因？我用的是pyflink

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更新时间 2024-06-08 06:59:18

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