Support large tables in addSitesUpgradeWizard

[Mabahe]

[einpraegsam]

Thx for digging into this issue. Did you run the upgrade wizard from CLI or from Browser (via Install Tool)?

I'm asking because I think that running from CLI should be possible no matter how long it would take. Even if your solution is a good thing, it might need some time in testing for me. And currently the TYPO3 13 update is our main focus for LUX, LUXenterprise and LUXletter

[Mabahe]

The main issue is not about the long running, but loading the complete table in memory, so a memory limit issue. But here it is obvious that runtime and queries can be saved in a simple way, too IMO you should not wait any longer than necessary.