Ramin Gharib created FLINK-40487:
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Summary: CAST between UUID and STRING / BINARY(16)
Key: FLINK-40487
URL: https://issues.apache.org/jira/browse/FLINK-40487
Project: Flink
Issue Type: Sub-task
Components: Table SQL / API
Reporter: Ramin Gharib
Assignee: Ramin Gharib
Explicit casts for UUID. No implicit coercions.
Scope:
- UUID -> STRING: canonical lowercase 8-4-4-4-12
- STRING -> UUID: lenient (canonical, uppercase, braces, variable hyphens;
PostgreSQL-compatible)
- UUID <-> BINARY(16): 16 big-endian bytes
Depends on A1. UUID <-> VARIANT is tracked separately in B5.
Verifying: cast matrix tests incl. malformed-string failures and TRY_CAST nulls.
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