[db] When modifying the time zone connection parameters in the datab…

[lizhongze1]

…ase, the last connection information is still used (#2590)

[db] When modifying the time zone connection parameters in the database, the last connection information is still used (#2590)

[mergify[bot]]

:warning: The sha of the head commit of this PR conflicts with #2597. Mergify cannot evaluate rules on this PR. :warning:

[yuxiqian]

Hi @lizhongze1 Could you please rebase this PR with latest master branch?

cc @loserwang1024

[github-actions[bot]]

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