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fix(otel): preserve all exemplars per data point (#1662) #1720

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fix(otel): preserve all exemplars per data point (#1662) #1720

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8 changes: 8 additions & 0 deletions src/cli.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -292,6 +292,14 @@ pub struct Options {
)]
pub metrics_endpoint_auth: bool,

#[arg(
long,
env = "P_OTEL_FLATTEN_EXEMPLARS",
default_value = "false",
help = "Use the legacy flat per-exemplar columns (exemplar_time_unix_nano, exemplar_span_id, exemplar_trace_id, exemplar_value) for OTEL metrics. These columns keep only the last exemplar of each data point. When false (default), all exemplars are stored under a single nested `exemplars` array column."
)]
pub otel_flatten_exemplars: bool,

// TLS/Security
#[arg(
long,
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