(2023)
(VLDB Volume 17 no 2 is 2023)
replies(1):
> All papers published in this issue will be presented at the 50th International Conference on Very Large Data Bases, Guangzhou, China, 2024.
And that's because in the submission guidelines [1],
> The last three revision deadlines will be May 15, June 1, and July 15, 2023. Note that the June deadline is on the 1st instead of the 15th, and it is the final revision deadline for consideration to present at VLDB 2023; submissions received after this deadline will roll over to VLDB 2024.
So whether it is (2023) or (2024) is a little ambiguous.
[0] https://www.vldb.org/pvldb/vol17/FrontMatterVol17No2.pdf