CDC table missing features

[fuyufjh]

• watermark
• append only
• generated column define generated column on CDC table #16024
• Support creating table for CDC connectors with the * syntax #16443
• CDC connector with additional columns #16359
• • feat(cdc): map upstream table schema automatically for cdc table #16986
• alter table
  • add/drop column bug: altering table column failed when table is built upon a shared cdc source #16287

Originally posted by @fuyufjh in #16513 (comment)

[st1page]

after #15267

[github-actions]

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