Component(s)

No response

What happened?

Description

I'm trying to fetch the timestamp from the log message as Time. I can capture it as String, but the conversion results in Empty()

Steps to Reproduce

• Configure otel collector
• publish log message 2025-04-08 00:53:20.438 INFO hello there

Expected Result

attributes.sdf contains time value (2025-04-08 00:53:20.438 +0000 UTC)

Actual Result

attributes.sdf contains Empty()

Collector version

0.123.0, 0.118.0

Environment information

Environment

docker.io/otel/opentelemetry-collector-contrib:0.123.0
and
docker.io/otel/opentelemetry-collector-contrib:0.118.0

OpenTelemetry Collector configuration

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: ${env:MY_POD_IP}:4317
      http:
        endpoint: ${env:MY_POD_IP}:4318
service:
  pipelines:
    logs:
      exporters:
      - debug
      processors:
      - transform
      receivers:
      - otlp
processors:
  batch: {}
  transform:
    error_mode: ignore
    log_statements:
    - context: log
      statements:
      - |
        merge_maps(attributes, ExtractGrokPatterns(body, "^%{TIMESTAMP_ISO8601:timestamp} %{WORD:log_level} %{GREEDYDATA:other}"), "upsert")
      - |
        set(attributes["sdf"], Time(attributes["timestamp"], "%Y-%m-%d %H:%M:%S.%L"))

Log output

ScopeLogs #0
ScopeLogs SchemaURL:
InstrumentationScope dial-core
LogRecord #0
ObservedTimestamp: 2025-04-08 00:57:37.334031824 +0000 UTC
Timestamp: 2025-04-08 00:57:37.334031824 +0000 UTC
SeverityText:
SeverityNumber: Unspecified(0)
Body: Str(2025-04-08 00:53:20.438 INFO <...>)
Attributes:
<...>
     -> timestamp: Str(2025-04-08 00:57:35.749)
<...>
     -> sdf: Empty()
<...>

Additional context

Tried on 0.118.0 and 0.123.0