DaTaobao Tech
Oct 25, 2024 · Big Data
Using Temporary Table JOIN in Flink SQL for Real-Time Stream Enrichment
The article explains how to use Flink SQL’s temporary table join to enrich a real‑time traffic‑log stream with versioned tag data, detailing the required DDL, the time‑versioned join syntax, and essential watermark and idle‑timeout settings that prevent stalls and boundary‑delay issues.
FlinkSQLTemporary Join
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