Support CDC on tables with generated columns #2015

Job	Run time
style_checker	13s
docs	2m 18s
Run tests (16, ci)	4s
Run tests (16, pagila)	2m 40s
Run tests (16, pagila-multi-steps)	2m 46s
Run tests (16, pagila-standby)	2m 53s
Run tests (16, unit)	2m 44s
Run tests (16, blobs)	2m 37s
Run tests (16, filtering)	2m 36s
Run tests (16, extensions)	2m 56s
Run tests (16, cdc-low-level)	2m 47s
Run tests (16, cdc-test-decoding)	2m 36s
Run tests (16, cdc-endpos-between-transaction)	2m 47s
Run tests (16, cdc-wal2json)	2m 53s
Run tests (16, follow-wal2json)	3m 20s
Run tests (16, follow-9.6)	3m 25s
Run tests (16, follow-data-only)	3m 42s
Run tests (16, endpos-in-multi-wal-txn)	2m 44s
	46m 1s

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