Compute preliminary overlay database mode #5192

Job	Run time
Config export (ubuntu-latest, linked)	1m 0s
Config export (macos-latest, nightly-latest)	1m 30s
Config export (windows-latest, linked)	2m 56s
Config export (macos-latest, linked)	1m 32s
Config export (windows-latest, nightly-latest)	2m 25s
Config export (ubuntu-latest, nightly-latest)	1m 1s
	10m 24s

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