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Return no-op instead of SQL error when ObservationLog has no valid entries #2706

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Return no-op instead of SQL error when ObservationLog has no valid entries #2706

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088ac1f
Return no-op instead of SQL error when ObservationLog has no valid en…
pujitha24 Aug 25, 2026
9ad4c57
Add empty-MetricLogs test case and clarify no-op comment
pujitha24 Aug 25, 2026
d12296d
Guard RegisterObservationLog against a nil ObservationLog
pujitha24 Aug 30, 2026
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4 changes: 4 additions & 0 deletions pkg/db/v1beta1/mysql/mysql.go
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,10 @@ func (d *dbConn) RegisterObservationLog(trialName string, observationLog *v1beta
sqlQuery += "(?, ?, ?, ?),"
values = append(values, trialName, sqlTimeStr, mlog.Metric.Name, mlog.Metric.Value)
}
if len(values) == 0 {
// No valid metric logs to insert, skip Prepare/Exec.
return nil
}
sqlQuery = sqlQuery[0 : len(sqlQuery)-1]

// Prepare the statement
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30 changes: 30 additions & 0 deletions pkg/db/v1beta1/mysql/mysql_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,36 @@ func TestRegisterObservationLog(t *testing.T) {

}

func TestRegisterObservationLogNoValidEntries(t *testing.T) {
obsLog := &api_pb.ObservationLog{
MetricLogs: []*api_pb.MetricLog{
{
TimeStamp: "",
Metric: &api_pb.Metric{
Name: "f1_score",
Value: "88.95",
},
},
},
}

err := dbInterface.RegisterObservationLog("test1_trial1", obsLog)
if err != nil {
t.Errorf("RegisterObservationLog failed: %v", err)
}
}

func TestRegisterObservationLogEmptyMetricLogs(t *testing.T) {
obsLog := &api_pb.ObservationLog{
MetricLogs: []*api_pb.MetricLog{},
}

err := dbInterface.RegisterObservationLog("test1_trial1", obsLog)
if err != nil {
t.Errorf("RegisterObservationLog failed: %v", err)
}
}

func TestGetObservationLog(t *testing.T) {
mock.ExpectQuery("SELECT").WillReturnRows(
sqlmock.NewRows([]string{"time", "metric_name", "value"}).AddRow(
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5 changes: 5 additions & 0 deletions pkg/db/v1beta1/postgres/postgres.go
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,11 @@ func (d *dbConn) RegisterObservationLog(trialName string, observationLog *v1beta
index_of_qparam += 4
}

if len(values) == 0 {
// No valid metric logs to insert, skip Prepare/Exec.
return nil
}

statement = statement[:len(statement)-1]

// Prepare the statement
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30 changes: 30 additions & 0 deletions pkg/db/v1beta1/postgres/postgres_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,36 @@ func TestRegisterObservationLog(t *testing.T) {

}

func TestRegisterObservationLogNoValidEntries(t *testing.T) {
obsLog := &api_pb.ObservationLog{
MetricLogs: []*api_pb.MetricLog{
{
TimeStamp: "",
Metric: &api_pb.Metric{
Name: "f1_score",
Value: "88.95",
},
},
},
}

err := dbInterface.RegisterObservationLog("test1_trial1", obsLog)
if err != nil {
t.Errorf("RegisterObservationLog failed: %v", err)
}
}

func TestRegisterObservationLogEmptyMetricLogs(t *testing.T) {
obsLog := &api_pb.ObservationLog{
MetricLogs: []*api_pb.MetricLog{},
}

err := dbInterface.RegisterObservationLog("test1_trial1", obsLog)
if err != nil {
t.Errorf("RegisterObservationLog failed: %v", err)
}
}

func TestGetObservationLog(t *testing.T) {
mock.ExpectQuery("SELECT").WillReturnRows(
sqlmock.NewRows([]string{"time", "metric_name", "value"}).AddRow(
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