ThorneANN opened a new pull request, #4405:
URL: https://github.com/apache/flink-cdc/pull/4405
The `scan.incremental.snapshot.chunk.key-column` option had several gaps
and inaccuracies in its documentation across multiple connectors:
1. NOT NULL / no-primary-key constraint was undocumented.
The option is required when a captured table has no primary key and the
chosen column must be NOT NULL. None of the connector docs mentioned this.
2. Multi-table format was undocumented (MySQL).
The MySQL connector supports `<table-pattern>:<column>[;...]` for assigning
different chunk key columns to different tables. This was not documented in
either the flink-source or pipeline connector docs.
3. Option was entirely missing from PostgreSQL pipeline connector docs.
4. Stale option description wording across all connectors.
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