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Retract Stream

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DataFunTalk
DataFunTalk
Feb 7, 2021 · Big Data

Optimizations and Extensions for Flink SQL in Tencent Real‑Time Computing Platform

This article, presented by Tencent senior engineer Du Li, details the current state of Flink SQL, compares Jar, Canvas, and SQL modes, introduces window‑function extensions, retract‑stream optimizations, and outlines future roadmap plans for cost‑based optimization and new features in the real‑time computing platform.

FlinkReal-Time ComputingRetract Stream
0 likes · 19 min read
Optimizations and Extensions for Flink SQL in Tencent Real‑Time Computing Platform
HomeTech
HomeTech
Mar 11, 2020 · Big Data

Streaming SQL with Apache Flink: Theory, Platform Optimizations, and Real‑Time Use Cases

This article introduces Apache Flink's Streaming SQL, explains its theoretical foundations such as the table‑stream relationship and watermark semantics, describes the platform's practical enhancements—including source/sink wrappers, built‑in functions, and native Retract Stream support—and showcases several real‑time computation examples.

Apache FlinkDataStreamReal-Time Computing
0 likes · 31 min read
Streaming SQL with Apache Flink: Theory, Platform Optimizations, and Real‑Time Use Cases