Zhenghua Gao created FLINK-14764:
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Summary: The final Explicit/Implicit conversion matrix we should
support in our planner
Key: FLINK-14764
URL: https://issues.apache.org/jira/browse/FLINK-14764
Project: Flink
Issue Type: Improvement
Components: Table SQL / Legacy Planner, Table SQL / Planner
Affects Versions: 1.10.0
Reporter: Zhenghua Gao
Fix For: 1.10.0
The SQL standard defines the cast specification with an explicit conversion
matrix (SQL 2011 Part 2 Section 6.13 Syntax Rules 6)). But neither Legacy
planner nor blink planner would follow that. IMO we should determine a final
Explicit/Implicit conversion matrix before 1.10 (at least in blink planner).
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