Decouple from/to filtering in history log RPC.

Currently, ListEvaluationHistory RPC forces the client to either
specify both from and to or none of them, but the logic behind the
extracted data would allow them to be specified independently.

This change decouples from and to, making the underlying statement a
tiny bit more uniform.

database/query/eval_history.sql

@@ -151,9 +151,8 @@ SELECT s.id::uuid AS evaluation_id,
    AND (sqlc.slice(notAlerts)::alert_status_types[] IS NULL OR ae.status != ANY(sqlc.slice(notAlerts)::alert_status_types[]))
    AND (sqlc.slice(notStatuses)::eval_status_types[] IS NULL OR s.status != ANY(sqlc.slice(notStatuses)::eval_status_types[]))
    -- time range filter
-   AND (sqlc.narg(fromts)::timestamp without time zone IS NULL
-        OR sqlc.narg(tots)::timestamp without time zone IS NULL
-        OR s.evaluation_time BETWEEN sqlc.narg(fromts) AND sqlc.narg(tots))
+   AND (sqlc.narg(fromts)::timestamp without time zone IS NULL OR s.evaluation_time >= sqlc.narg(fromts))
+   AND (sqlc.narg(tots)::timestamp without time zone IS NULL OR  s.evaluation_time < sqlc.narg(tots))
    -- implicit filter by project id
    AND j.id = sqlc.arg(projectId)
  ORDER BY s.evaluation_time DESC

internal/history/models.go

@@ -627,12 +627,6 @@ func NewListEvaluationFilter(opts ...FilterOpt) (ListEvaluationFilter, error) {
 	if filter.projectID == uuid.Nil {
 		return nil, fmt.Errorf("%w: missing", ErrInvalidProjectID)
 	}
-	if filter.to != nil && filter.from == nil {
-		return nil, fmt.Errorf("%w: from is missing", ErrInvalidTimeRange)
-	}
-	if filter.from != nil && filter.to == nil {
-		return nil, fmt.Errorf("%w: to is missing", ErrInvalidTimeRange)
-	}
 	if filter.from != nil && filter.to != nil && filter.from.After(*filter.to) {
 		return nil, fmt.Errorf("%w: from is greated than to", ErrInvalidTimeRange)
 	}

internal/history/models_test.go

@@ -226,7 +226,11 @@ func TestListEvaluationFilter(t *testing.T) {
 					WithTo(now),
 				)
 			},
-			err: true,
+			check: func(t *testing.T, filter ListEvaluationFilter) {
+				t.Helper()
+				require.Nil(t, filter.GetFrom())
+				require.Equal(t, now, *filter.GetTo())
+			},
 		},
 		{
 			name: "no to",
@@ -237,7 +241,11 @@ func TestListEvaluationFilter(t *testing.T) {
 					WithFrom(now),
 				)
 			},
-			err: true,
+			check: func(t *testing.T, filter ListEvaluationFilter) {
+				t.Helper()
+				require.Equal(t, now, *filter.GetFrom())
+				require.Nil(t, filter.GetTo())
+			},
 		},
 		{
 			name: "from after to",