transferred_core/report.rs
1use std::time::Duration;
2
3/// Severity of a recorded coercion. `Info` = Tier 1 lossless. `Warn` = Tier 2 lossy-structural.
4/// Tier 3 (lossy-semantic) coercions are not recorded — they fail the run via `TransferredError::Coercion`.
5#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6pub enum CoercionLevel {
7 /// Tier 1 lossless coercion.
8 Info,
9 /// Tier 2 lossy-structural coercion.
10 Warn,
11}
12
13/// A single type coercion applied during a run.
14#[derive(Debug, Clone)]
15pub struct Coercion {
16 /// Name of the column that was coerced.
17 pub column: String,
18 /// Source type, rendered as a string.
19 pub from: String,
20 /// Target type, rendered as a string.
21 pub to: String,
22 /// Severity of the coercion.
23 pub level: CoercionLevel,
24}
25
26/// Post-run statistics returned by `Transfer::run()`.
27#[derive(Debug, Default, Clone)]
28pub struct RunReport {
29 /// Total rows transferred.
30 pub rows: u64,
31 /// Total bytes written to the destination.
32 pub bytes_written: u64,
33 /// What the destination wrote: file paths, object URIs, `dataset.table`, etc.
34 pub written_objects: Vec<String>,
35 /// Wall-clock duration of the run.
36 pub duration: Duration,
37 /// Coercions applied during the run.
38 pub coercions: Vec<Coercion>,
39}