vacuum error "left link changed unexpectedly"

Hello,

after months of flawless operations suddenly an error occurred.
The database is vacuumed every night. Beside the vacuum error message
the database works fine.

Here the vacuum output:

vacuumdb: vacuuming database "CLIX2"
vacuumdb: vacuuming of database "CLIX2" failed: ERROR:  left link
changed unexpectedly

Any ideas what is wrong? Or how to fix it?

Ulrich

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Ulrich Wisser  / System Developer

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