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To allow the ability to have guaranteed-unique cursors, we make two important updates: * Add new updated_at_ms and created_at_ms columns that are in millisecond precision * Guarantee uniqueness -- if multiple items are inserted at the same millisecond, bump the new one by one millisecond until it becomes unique This lets us use single-number cursors for forwards and backwards paging through resultsets and guarantee that the cursor is a fixed point to do (timestamp > cursor) and get new items only. This updated implementation is backwards-compatible since multiple appservers can be running and won't handle the previous method well.
10 lines
295 B
Rust
10 lines
295 B
Rust
use chrono::DateTime;
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use chrono::Utc;
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use std::path::Path;
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pub(crate) async fn file_modified_time_utc(path: &Path) -> Option<DateTime<Utc>> {
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let modified = tokio::fs::metadata(path).await.ok()?.modified().ok()?;
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let updated_at: DateTime<Utc> = modified.into();
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Some(updated_at)
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}
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