[Metrics] Datapoints follow OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE - #1293

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KennanHunter wants to merge 12 commits into

pgdogdev:mainfrom

KennanHunter:otel_sum_improvements

Commits on Aug 7, 2026

use serde_repr to strictly type SumAggregationTemporality
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2d44371
case-insensitive parse out OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE in both [otel] section and env var form
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3478261
return data points according to temporality
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fed5e14
return start_time_unix_nano with otel counters and sum
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9a46c79
use explicit OpenMetricType enum instead of magic strings
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c838155
flatten and extract helpers to make relationship between OpenMetricType
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9132134
Update JSON schema
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d63fad7
test OtelTemporalityPreference to make codecov happy
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5d59018
otel: default temporality by datadog presence and centralize warning
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1ced1c3
add pgdog-jsonschema line to CONTRIBUTING.md
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3c3d165
update 9918e9 to use typed OpenMetricType
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74dfe77
otel: derive effective temporality at read time
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81dc14f