# Delta chat id backup? \[small archive without past messages\]

**URL:** <https://forum.delta.chat/t/delta-chat-id-backup-small-archive-without-past-messages/5203>\
**Category:** Uncategorized\
**Created:** [May 10, 2026, 11:05am UTC](https://forum.delta.chat/t/delta-chat-id-backup-small-archive-without-past-messages/5203 "2026-05-10T11:05:55Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![ian](https://forum.delta.chat/user_avatar/forum.delta.chat/ian/32/3164_2.png) [@ian](https://forum.delta.chat/u/ian)\
**Post date:** [May 10, 2026, 2:35pm UTC](https://forum.delta.chat/t/delta-chat-id-backup-small-archive-without-past-messages/5203/5 "2026-05-10T14:35:46Z")

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Well, the shortest interval here in my client is `After 1 hour`. While this may seem good enough for all practical purposes, am I supposed to wait 1 hour for it to clear up fully for the above use case?

Does DC execute full vacuuming before each export? Past experience showed that an sql dump and then recreation of the database usually resulted in a smaller database overall.

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