[reciever/prometheusremotewritereceiver] Handle multiple timeseries with same metric name+type+unit

.chloggen/separate_timeseries_same_labels_same_datapoints.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: prometheusremotewritereciever
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add support for timeseries with the same labels and name/unitRef metric Metadata.
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [37791]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: timeseries that has the same labels and name/unitRef metric Metadata should belongs to the same datapoints slice.
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]

receiver/prometheusremotewritereceiver/go.mod

@@ -6,7 +6,8 @@ require (
 	github.com/cespare/xxhash/v2 v2.3.0
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/snappy v0.0.4
-	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatatest v0.121.0
+	github.com/open-telemetry/opentelemetry-collector-contrib/internal/exp/metrics v0.122.0
+	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatatest v0.122.0
 	github.com/prometheus/prometheus v0.300.1
 	github.com/stretchr/testify v1.10.0
 	go.opentelemetry.io/collector/component v1.27.0
@@ -16,7 +17,7 @@ require (
 	go.opentelemetry.io/collector/confmap v1.27.0
 	go.opentelemetry.io/collector/consumer v1.27.0
 	go.opentelemetry.io/collector/consumer/consumertest v0.121.0
-	go.opentelemetry.io/collector/pdata v1.27.0
+	go.opentelemetry.io/collector/pdata v1.28.0
 	go.opentelemetry.io/collector/receiver v0.121.0
 	go.opentelemetry.io/collector/receiver/receivertest v0.121.0
 	go.uber.org/goleak v1.3.0
@@ -26,7 +27,7 @@ require (
 require (
 	cloud.google.com/go/auth v0.9.5 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.4 // indirect
-	cloud.google.com/go/compute/metadata v0.5.2 // indirect
+	cloud.google.com/go/compute/metadata v0.6.0 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.14.0 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.7.0 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0 // indirect
@@ -61,7 +62,7 @@ require (
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect
-	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatautil v0.121.0 // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatautil v0.122.0 // indirect
 	github.com/pierrec/lz4/v4 v4.1.22 // indirect
 	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
@@ -85,7 +86,7 @@ require (
 	go.opentelemetry.io/collector/pdata/pprofile v0.121.0 // indirect
 	go.opentelemetry.io/collector/pipeline v0.121.0 // indirect
 	go.opentelemetry.io/collector/receiver/xreceiver v0.121.0 // indirect
-	go.opentelemetry.io/collector/semconv v0.121.0 // indirect
+	go.opentelemetry.io/collector/semconv v0.122.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.56.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.59.0 // indirect
 	go.opentelemetry.io/otel v1.34.0 // indirect
@@ -95,15 +96,15 @@ require (
 	go.opentelemetry.io/otel/trace v1.34.0 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/crypto v0.33.0 // indirect
-	golang.org/x/net v0.35.0 // indirect
-	golang.org/x/oauth2 v0.24.0 // indirect
-	golang.org/x/sys v0.30.0 // indirect
-	golang.org/x/text v0.22.0 // indirect
+	golang.org/x/crypto v0.36.0 // indirect
+	golang.org/x/net v0.37.0 // indirect
+	golang.org/x/oauth2 v0.25.0 // indirect
+	golang.org/x/sys v0.31.0 // indirect
+	golang.org/x/text v0.23.0 // indirect
 	golang.org/x/time v0.6.0 // indirect
 	google.golang.org/api v0.199.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20241202173237-19429a94021a // indirect
-	google.golang.org/grpc v1.70.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f // indirect
+	google.golang.org/grpc v1.71.0 // indirect
 	google.golang.org/protobuf v1.36.5 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect