diff --git a/.gitignore b/.gitignore
index fabac85c..41012504 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,7 @@ src/data_processor
 src/trendinglabelsworker
 src/populate_labels
 src/statworker
+src/labels_downloader
+src/labels_merger
+src/make_labels_productive
+src/bot
diff --git a/env/docker/Dockerfile.blogsubscriptionworker b/env/docker/Dockerfile.blogsubscriptionworker
index 495a624c..99f6fe18 100644
--- a/env/docker/Dockerfile.blogsubscriptionworker
+++ b/env/docker/Dockerfile.blogsubscriptionworker
@@ -1,4 +1,4 @@
-FROM golang:1.12.14-buster
+FROM golang:1.14.4-buster
 
 ENV REDIS_ADDRESS=:6379
 ENV SENTRY_DSN=
diff --git a/env/docker/Dockerfile.bot b/env/docker/Dockerfile.bot
index 209ede6c..c1d815ab 100644
--- a/env/docker/Dockerfile.bot
+++ b/env/docker/Dockerfile.bot
@@ -1,4 +1,4 @@
-FROM golang:1.12.14-buster
+FROM golang:1.14.4-buster
 
 RUN mkdir -p /home/go/bin
 ENV GOPATH=/home/go
diff --git a/env/docker/Dockerfile.buildbase b/env/docker/Dockerfile.buildbase
index 12888e88..576f4f6b 100644
--- a/env/docker/Dockerfile.buildbase
+++ b/env/docker/Dockerfile.buildbase
@@ -1,4 +1,4 @@
-FROM golang:1.12.14-buster
+FROM golang:1.14.4-buster
 
 ENV GOPATH=/home/go
 ENV GOBIN=/home/go/bin
diff --git a/env/docker/Dockerfile.dataprocessor b/env/docker/Dockerfile.dataprocessor
index 8cca6540..1a3d8a8c 100644
--- a/env/docker/Dockerfile.dataprocessor
+++ b/env/docker/Dockerfile.dataprocessor
@@ -1,4 +1,4 @@
-FROM golang:1.12.14-buster
+FROM golang:1.14.4-buster
 
 ENV USE_SENTRY=true
 ARG SINGLESHOT=false
diff --git a/env/docker/Dockerfile.postgres b/env/docker/Dockerfile.postgres
index 1ef71ca1..907fbb0f 100644
--- a/env/docker/Dockerfile.postgres
+++ b/env/docker/Dockerfile.postgres
@@ -1,4 +1,4 @@
-FROM postgres:9.6.13
+FROM postgres:9.6.18
 
 ARG TEMPORAL_TABLE_VERSION=1.2.0
 ARG POSTGIS_VERSION=2.5
diff --git a/env/docker/Dockerfile.statworker b/env/docker/Dockerfile.statworker
index 59f9dd7c..1bb9f7b9 100644
--- a/env/docker/Dockerfile.statworker
+++ b/env/docker/Dockerfile.statworker
@@ -1,4 +1,4 @@
-FROM golang:1.12.14-buster
+FROM golang:1.14.4-buster
 
 ENV SENTRY_DSN=
 ENV IMAGEMONKEY_DB_CONNECTION_STRING=
diff --git a/env/docker/Dockerfile.testing b/env/docker/Dockerfile.testing
index 95836ee1..2f7e023e 100644
--- a/env/docker/Dockerfile.testing
+++ b/env/docker/Dockerfile.testing
@@ -1,4 +1,4 @@
-FROM golang:1.12.14-buster
+FROM golang:1.14.4-buster
 
 # when changing the base image, change also the debian version here
 ARG DEBIAN_VERSION=buster
diff --git a/env/docker/Dockerfile.trendinglabelsworker b/env/docker/Dockerfile.trendinglabelsworker
index a5151b38..42145547 100644
--- a/env/docker/Dockerfile.trendinglabelsworker
+++ b/env/docker/Dockerfile.trendinglabelsworker
@@ -1,4 +1,4 @@
-FROM golang:1.12.14-buster
+FROM golang:1.14.4-buster
 
 ENV USE_SENTRY=true
 ENV SINGLESHOT=false
diff --git a/src/migrations/fix_duplicate_label_suggestions.go b/src/migrations/fix_duplicate_label_suggestions.go
new file mode 100644
index 00000000..307e9bce
--- /dev/null
+++ b/src/migrations/fix_duplicate_label_suggestions.go
@@ -0,0 +1,865 @@
+package main
+
+import (
+	commons "github.com/bbernhard/imagemonkey-core/commons"
+	"github.com/jackc/pgx/v4"
+	log "github.com/sirupsen/logrus"
+	"context"
+	"flag"
+	"os"
+	"fmt"
+	"github.com/jackc/pgtype"
+	"golang.org/x/oauth2"
+	"github.com/google/go-github/github"
+)
+
+var unrecoverableDeletedAnnotationData int = 0
+var unrecoverableDeletedAnnotations int = 0
+var githubIssueIds []int64
+var numOfDeleteLabelSuggestions int = 0
+var numOfDeletedImageLabelSuggestions int = 0
+var numOfDeletedImageAnnotationSuggestionHistoryEntries int = 0
+var numOfUpdatedImageAnnotationSuggestionEntries int = 0
+var numOfUpdatedImageLabelSuggestionEntries int = 0
+var numOfDeletedTrendingLabelSuggestionEntries int = 0
+var numOfDeletedImageLabelSuggestionEntries int = 0
+var numOfDeletedAnnotationSuggestionDataEntries int = 0
+var numOfDeletedUserImageAnnotationSuggestionEntries int = 0
+var numOfDeletedImageAnnotationSuggestionEntries int = 0
+
+var typeOfScans []string = []string{"enable_indexscan", "enable_indexonlyscan"}
+
+func removeElemFromSlice(s []int64, r int64) []int64 {
+    for i, v := range s {
+        if v == r {
+            return append(s[:i], s[i+1:]...)
+        }
+    }
+    return s
+}
+
+func removeImageAnnotationSuggestionHistoryEntry(tx pgx.Tx, imageAnnotationSuggestionId int64) error {
+	var num int = 0
+	err := tx.QueryRow(context.TODO(), `SELECT count(*) FROM image_annotation_suggestion_history WHERE id = $1`, imageAnnotationSuggestionId).Scan(&num)
+
+	if num > 0 {
+		_, err = tx.Exec(context.TODO(), `DELETE FROM image_annotation_suggestion_history WHERE id = $1`, imageAnnotationSuggestionId)
+		numOfDeletedImageAnnotationSuggestionHistoryEntries += 1
+	}
+	return err
+}
+
+func disableTriggers(tx pgx.Tx) error {
+	_, err := tx.Exec(context.TODO(), `ALTER TABLE image_annotation_suggestion DISABLE TRIGGER image_annotation_suggestion_versioning_trigger`)
+	return err
+}
+
+func enableTriggers(tx pgx.Tx) error {
+	_, err := tx.Exec(context.TODO(), `ALTER TABLE image_annotation_suggestion ENABLE TRIGGER image_annotation_suggestion_versioning_trigger`)
+	return err
+}
+
+func persistDuplicateLabels(duplicateLabels []string) error {
+	f, err := os.Create("/tmp/duplicate_labels.txt")
+	if err != nil {
+		return err
+	}
+	
+	s := ""
+	for _, duplicateLabel := range duplicateLabels {
+		s += duplicateLabel + "\n"
+	}
+
+	_, err = f.WriteString(s)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func closeGithubIssue(githubIssueId int, repository string, githubProjectOwner string, githubApiToken string) error {
+	ctx := context.Background()
+	ts := oauth2.StaticTokenSource(
+		&oauth2.Token{AccessToken: githubApiToken},
+	)
+	tc := oauth2.NewClient(ctx, ts)
+
+	client := github.NewClient(tc)
+
+	body := "Label is a duplicate."
+
+	//create a new comment
+	commentRequest := &github.IssueComment{
+		Body:    github.String(body),
+	}
+
+	//we do not care whether we can successfully close the github issue..if it doesn't work, one can always close it
+	//manually.
+	_, _, err := client.Issues.CreateComment(ctx, githubProjectOwner, repository, githubIssueId, commentRequest)
+	if err == nil { //if comment was successfully created, close issue
+		issueRequest := &github.IssueRequest{
+			State: github.String("closed"),
+		}
+
+		_, _, err = client.Issues.Edit(ctx, githubProjectOwner, repository, githubIssueId, issueRequest)
+		return err
+	} else {
+		return err
+	}
+
+	return nil
+}
+
+//TODO: add unique constraint to label_suggestion table
+
+//TODO: verify num of image labels + annotations before and after
+
+func getNumOfImageAnnotationSuggestions(tx pgx.Tx) (int, error) {
+	var num int
+	err := tx.QueryRow(context.TODO(), `SELECT count(*) FROM image_annotation_suggestion`).Scan(&num)
+	return num, err
+}
+
+func getNumOfImageAnnotationSuggestionHistoryEntries(tx pgx.Tx) (int, error) {
+	var num int
+	err := tx.QueryRow(context.TODO(), `SELECT count(*) FROM image_annotation_suggestion_history`).Scan(&num)
+	return num, err
+}
+
+func getNumOfImages(tx pgx.Tx) (int, error) {
+	var num int
+	err := tx.QueryRow(context.TODO(), `SELECT count(*) FROM image`).Scan(&num)
+	return num, err
+}
+
+func getNumOfLabelSuggestions(tx pgx.Tx) (int, error) {
+	var num int
+	err := tx.QueryRow(context.TODO(), `SELECT count(*) from label_suggestion`).Scan(&num)
+	return num, err
+}
+
+func getNumOfAnnotationSuggestionData(tx pgx.Tx) (int, error) {
+	var num int
+	err := tx.QueryRow(context.TODO(), `SELECT count(*) FROM annotation_suggestion_data`).Scan(&num)
+	return num, err
+}
+
+func getNumOfImageLabelSuggestions(tx pgx.Tx) (int, error) {
+	var num int
+	err := tx.QueryRow(context.TODO(), `SELECT count(*) FROM image_label_suggestion`).Scan(&num)
+	return num, err
+}
+
+func getNumOfProductiveLabelSuggestions(tx pgx.Tx) (int, error) {
+	var num int
+	err := tx.QueryRow(context.TODO(), `SELECT count(*) FROM trending_label_suggestion WHERE closed = true`).Scan(&num)
+	return num, err
+}
+
+func unifyTrendingLabelSuggestions(tx pgx.Tx, sourceIds *pgtype.Int8Array) error {
+	rows, err := tx.Query(context.TODO(), `SELECT id, github_issue_id 
+											FROM trending_label_suggestion 
+											WHERE label_suggestion_id = ANY($1)`, sourceIds)
+	if err != nil {
+		return err
+	}
+
+	defer rows.Close()
+
+	trendingLabelSuggestionIds := []int64{}
+	for rows.Next() {
+		var trendingLabelSuggestionId int64
+		var githubIssueId int64
+		err := rows.Scan(&trendingLabelSuggestionId, &githubIssueId)
+		if err != nil {
+			return err
+		}
+
+		trendingLabelSuggestionIds = append(trendingLabelSuggestionIds, trendingLabelSuggestionId)
+		githubIssueIds = append(githubIssueIds, githubIssueId)
+	}
+
+	for _, trendingLabelSuggestionId := range trendingLabelSuggestionIds {
+		_, err = tx.Exec(context.TODO(), `DELETE FROM trending_label_suggestion 
+											WHERE id = $1`, trendingLabelSuggestionId)
+		numOfDeletedTrendingLabelSuggestionEntries += 1
+		if err != nil {
+			return err
+		}
+	}
+	
+	return nil
+}
+
+func unifyImagesWithNoDuplicateLabels(tx pgx.Tx, imageIdsThatHaveNoDuplicateLabels []int64, sourceIds *pgtype.Int8Array, target int64) error {
+	//unify images with no duplicate labels
+	rows, err := tx.Query(context.TODO(), `SELECT id FROM image_label_suggestion i 
+											WHERE label_suggestion_id = ANY($1) AND image_id = ANY($2)`, sourceIds, imageIdsThatHaveNoDuplicateLabels)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+
+	imageLabelSuggestionIds := []int64{}
+	for rows.Next() {
+		var imageLabelSuggestionId int64
+		err := rows.Scan(&imageLabelSuggestionId)
+		if err != nil {
+			return err
+		}
+		imageLabelSuggestionIds = append(imageLabelSuggestionIds, imageLabelSuggestionId)
+	}
+
+	rows.Close()
+
+	for _, imageLabelSuggestionId := range imageLabelSuggestionIds {
+		_, err := tx.Exec(context.TODO(), `UPDATE image_label_suggestion SET label_suggestion_id = $1 WHERE id = $2`, target, imageLabelSuggestionId)
+		numOfUpdatedImageLabelSuggestionEntries+= 1
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func unifyImagesWithDuplicateLabels(tx pgx.Tx, imageIdsWithDuplicateLabels []int64, sourceIds *pgtype.Int8Array, allIds *pgtype.Int8Array, target int64) error {
+	for _, imageIdWithDuplicateLabels := range imageIdsWithDuplicateLabels {
+		rows, err := tx.Query(context.TODO(),
+					`			SELECT id 
+									FROM image_label_suggestion 
+									WHERE image_id = $1 AND label_suggestion_id = ANY($2)`, imageIdWithDuplicateLabels, allIds)
+		if err != nil {
+			return err
+		}
+
+		imageLabelSuggestionIds := []int64{}
+		for rows.Next() {
+			var imageLabelSuggestionId int64
+			err = rows.Scan(&imageLabelSuggestionId)
+			if err != nil {
+				return err
+			}
+			imageLabelSuggestionIds = append(imageLabelSuggestionIds, imageLabelSuggestionId)
+		}
+		rows.Close()
+
+		//delate all occurences, except one
+		for i := 0; i < len(imageLabelSuggestionIds)-1; i++ {
+			numOfDeletedImageLabelSuggestions += 1
+			_, err = tx.Exec(context.TODO(), `DELETE FROM image_label_suggestion WHERE id = $1`, imageLabelSuggestionIds[i])
+			numOfDeletedImageLabelSuggestionEntries += 1
+			if err != nil {
+				return err
+			}
+		}
+
+		_, err = tx.Exec(context.TODO(), 
+						`UPDATE image_label_suggestion 
+							SET label_suggestion_id = $1 
+							WHERE id = $2`, target, imageLabelSuggestionIds[len(imageLabelSuggestionIds)-1])
+		numOfUpdatedImageLabelSuggestionEntries += 1
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func unifyImageLabelSuggestions(tx pgx.Tx, sourceIds *pgtype.Int8Array, allIds *pgtype.Int8Array, target int64) error {
+	rows, err := tx.Query(context.TODO(), `SELECT a.image_id, count(*) FROM image_label_suggestion a
+											WHERE label_suggestion_id = ANY($1) GROUP BY image_id`, allIds)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+
+	imageIdsThatHaveNoDuplicateLabels := []int64{}
+	imageIdsWithDuplicateLabels := []int64{}
+	for rows.Next() {
+		var count int
+		var imageId int64
+		err := rows.Scan(&imageId, &count)
+		if err != nil {
+			return err
+		}
+
+		if count > 1 {
+			imageIdsWithDuplicateLabels = append(imageIdsWithDuplicateLabels, imageId)
+		} else {
+			imageIdsThatHaveNoDuplicateLabels = append(imageIdsThatHaveNoDuplicateLabels, imageId)
+		}
+	}
+
+	rows.Close()
+
+	err = unifyImagesWithNoDuplicateLabels(tx, imageIdsThatHaveNoDuplicateLabels, sourceIds, target)
+	if err != nil {
+		return err
+	}
+
+	err = unifyImagesWithDuplicateLabels(tx, imageIdsWithDuplicateLabels, sourceIds, allIds, target)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func unifyImageAnnotationsWithNoDuplicateLabels(tx pgx.Tx, imageIdsThatHaveNoDuplicateLabels []int64, sourceIds *pgtype.Int8Array, target int64) error {
+	rows, err := tx.Query(context.TODO(), `SELECT id 
+											FROM image_annotation_suggestion a 
+											WHERE label_suggestion_id = ANY($1)
+											AND a.image_id = ANY($2)`, sourceIds, imageIdsThatHaveNoDuplicateLabels)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+
+	imageAnnotationLabelSuggestionIds := []int64{}
+	for rows.Next() {
+		var imageAnnotationLabelSuggestionId int64
+		err := rows.Scan(&imageAnnotationLabelSuggestionId)
+		if err != nil {
+			return err
+		}
+		imageAnnotationLabelSuggestionIds = append(imageAnnotationLabelSuggestionIds, imageAnnotationLabelSuggestionId)
+	}
+
+	rows.Close()
+
+	for _, imageAnnotationLabelSuggestionId := range imageAnnotationLabelSuggestionIds {
+		_, err = tx.Exec(context.TODO(), `UPDATE image_annotation_suggestion
+										SET label_suggestion_id = $1 WHERE id = $2`, target, imageAnnotationLabelSuggestionId)
+		numOfUpdatedImageAnnotationSuggestionEntries += 1
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func unifyImageAnnotationsWithDuplicateLabels(tx pgx.Tx, imageIdsWithDuplicateLabels []int64, allIds *pgtype.Int8Array, target int64) error {
+	 for _, imageIdWithDuplicateLabels := range imageIdsWithDuplicateLabels {
+		rows, err := tx.Query(context.TODO(),
+					`			SELECT id 
+									FROM image_annotation_suggestion 
+									WHERE image_id = $1 AND label_suggestion_id = ANY($2)`, imageIdWithDuplicateLabels, allIds)
+		if err != nil {
+			return err
+		}
+
+		imageAnnotationSuggestionIds := []int64{}
+		for rows.Next() {
+			var imageAnnotationSuggestionId int64
+			err = rows.Scan(&imageAnnotationSuggestionId)
+			if err != nil {
+				return err
+			}
+			imageAnnotationSuggestionIds = append(imageAnnotationSuggestionIds, imageAnnotationSuggestionId)
+		}
+		rows.Close()
+		for _, imageAnnotationSuggestionId := range imageAnnotationSuggestionIds { 
+			unrecoverableDeletedAnnotations += 1
+			var unrecoverableDeletedAnnotationDataTemp int
+
+			err = tx.QueryRow(context.TODO(), 
+						`SELECT count(*) FROM annotation_suggestion_data WHERE image_annotation_suggestion_id = $1`, 
+							imageAnnotationSuggestionId).Scan(&unrecoverableDeletedAnnotationDataTemp)
+			if err != nil {
+				return err
+			}
+
+			unrecoverableDeletedAnnotationData += unrecoverableDeletedAnnotationDataTemp
+			
+			_, err = tx.Exec(context.TODO(), `DELETE FROM annotation_suggestion_data
+												WHERE image_annotation_suggestion_id = $1`, imageAnnotationSuggestionId)
+			numOfDeletedAnnotationSuggestionDataEntries += 1
+			if err != nil {
+				return err
+			}
+
+			_, err = tx.Exec(context.TODO(), `DELETE FROM user_image_annotation_suggestion 
+												WHERE image_annotation_suggestion_id = $1`, imageAnnotationSuggestionId)
+			numOfDeletedUserImageAnnotationSuggestionEntries += 1
+			if err != nil {
+				return err
+			}
+
+			_, err = tx.Exec(context.TODO(), `DELETE FROM image_annotation_suggestion WHERE id = $1`, imageAnnotationSuggestionId)
+			numOfDeletedImageAnnotationSuggestionEntries += 1
+			if err != nil {
+				return err
+			}
+
+			err = removeImageAnnotationSuggestionHistoryEntry(tx, imageAnnotationSuggestionId)
+			if err != nil {
+				return err
+			}
+		}
+	 }
+
+	return nil
+}
+
+func unifyImageAnnotationSuggestions(tx pgx.Tx, sourceIds *pgtype.Int8Array, allIds *pgtype.Int8Array, target int64) error {
+	rows, err := tx.Query(context.TODO(), `SELECT a.image_id, count(*) FROM image_annotation_suggestion a
+											WHERE label_suggestion_id = ANY($1) GROUP BY image_id`, allIds)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+
+	imageIdsThatHaveNoDuplicateLabels := []int64{}
+	imageIdsWithDuplicateLabels := []int64{}
+	for rows.Next() {
+		var count int
+		var imageId int64
+		err := rows.Scan(&imageId, &count)
+		if err != nil {
+			return err
+		}
+
+		if count > 1 {
+			imageIdsWithDuplicateLabels = append(imageIdsWithDuplicateLabels, imageId)
+		} else {
+			imageIdsThatHaveNoDuplicateLabels = append(imageIdsThatHaveNoDuplicateLabels, imageId)
+		}
+	}
+
+	rows.Close()
+
+
+	err = unifyImageAnnotationsWithNoDuplicateLabels(tx, imageIdsThatHaveNoDuplicateLabels, sourceIds, target)
+	if err != nil {
+		return err
+	}
+
+	err = unifyImageAnnotationsWithDuplicateLabels(tx, imageIdsWithDuplicateLabels, allIds, target)
+	if err != nil {
+		return err
+	}
+	
+	return nil
+}
+
+func unifyDuplicateLabelSuggestions(tx pgx.Tx, source []int64, target int64) error {
+	sourceIds := &pgtype.Int8Array{}
+	sourceIds.Set(source)
+
+	temp := []int64{}
+	temp = append(temp, source...)
+	temp = append(temp, target)
+	allIds := &pgtype.Int8Array{}
+	allIds.Set(temp)
+
+	err := unifyImageLabelSuggestions(tx, sourceIds, allIds, target)
+	if err != nil {
+		return err
+	}
+
+	err = unifyImageAnnotationSuggestions(tx, sourceIds, allIds, target)
+	if err != nil {
+		return err
+	}
+
+	err = unifyTrendingLabelSuggestions(tx, sourceIds)
+	if err != nil {
+		return err
+	}
+	
+	numOfDeleteLabelSuggestions += len(source)
+	_, err = tx.Exec(context.TODO(), `DELETE FROM label_suggestion WHERE id = ANY($1)`, sourceIds)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func getDuplicateLabelSuggestions(tx pgx.Tx) ([]string, error) {
+	duplicateLabelSuggestions := []string{}
+	rows, err := tx.Query(context.TODO(), `SELECT name FROM label_suggestion GROUP BY name HAVING COUNT(name) > 1`)
+	if err != nil {
+		return duplicateLabelSuggestions, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var duplicateLabelSuggestion string
+		err := rows.Scan(&duplicateLabelSuggestion)
+		if err != nil {
+			return duplicateLabelSuggestions, err
+		}
+
+		duplicateLabelSuggestions = append(duplicateLabelSuggestions, duplicateLabelSuggestion)
+	}
+
+	return duplicateLabelSuggestions, nil
+}
+
+func getLabelSuggestionIdsForLabelSuggestion(tx pgx.Tx, labelSuggestion string) ([]int64, error) {
+	duplicateLabelSuggestionIds := []int64{}
+	rows, err := tx.Query(context.TODO(), `SELECT id FROM label_suggestion WHERE name = $1`, labelSuggestion)
+	if err != nil {
+		return duplicateLabelSuggestionIds, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var duplicateLabelSuggestionId int64
+		err := rows.Scan(&duplicateLabelSuggestionId)
+		if err != nil {
+			return duplicateLabelSuggestionIds, err
+		}
+
+		duplicateLabelSuggestionIds = append(duplicateLabelSuggestionIds, duplicateLabelSuggestionId)
+	}
+
+	return duplicateLabelSuggestionIds, nil
+}
+
+func isLabelSuggestionIdProductive(tx pgx.Tx, labelSuggestionId int64) (bool, error) {	
+	rows, err := tx.Query(context.TODO(),
+						`SELECT closed FROM trending_label_suggestion WHERE label_suggestion_id = $1`, labelSuggestionId)
+	if err != nil {
+		return false, err
+	}
+	defer rows.Close()
+
+	if rows.Next() {
+		var productive bool
+		err := rows.Scan(&productive)
+		return productive, err
+	}
+	return false, nil
+}
+
+func dropUniqueConstraint(tx pgx.Tx) error {
+	_, err := tx.Exec(context.TODO(), `DROP INDEX label_suggestion_name_unique`)
+	return err
+}
+
+func disableIndexScans(tx pgx.Tx) error {
+	for _, typeOfScan := range typeOfScans {
+		q := fmt.Sprintf(`SET %s = OFF`, typeOfScan)
+		_, err := tx.Exec(context.TODO(), q)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func enableIndexScans(tx pgx.Tx) error {
+	for _, typeOfScan := range typeOfScans {
+		q := fmt.Sprintf(`SET %s = ON`, typeOfScan)
+		_, err := tx.Exec(context.TODO(), q)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func main() {
+	dryRun := flag.Bool("dryrun", true, "Do a dry run")
+	closeIssue := flag.Bool("close-github-issue", false, "Close github issue")
+	githubRepository := flag.String("repository", "", "Github repository")
+	
+	flag.Parse()
+
+	githubProjectOwner := ""
+	githubApiToken := ""
+	if *closeIssue {
+		githubApiToken = commons.MustGetEnv("GITHUB_API_TOKEN")
+		githubProjectOwner = commons.MustGetEnv("GITHUB_PROJECT_OWNER")
+
+		if *githubRepository == "" {
+			log.Fatal("Please provide a github repository!")
+		}
+	}
+
+	imageMonkeyDbConnectionString := commons.MustGetEnv("IMAGEMONKEY_DB_CONNECTION_STRING")
+	db, err := pgx.Connect(context.TODO(), imageMonkeyDbConnectionString)
+	if err != nil {
+		log.Fatal("Couldn't begin transaction: ", err.Error())
+	}
+
+	tx, err := db.Begin(context.TODO())
+	if err != nil {
+		log.Fatal("Couldn't begin transaction: ", err.Error())
+	}
+
+	err = dropUniqueConstraint(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't drop unique constraint: ", err.Error())
+	}
+
+	err = disableIndexScans(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't disable index scans: ", err.Error())
+	}
+
+	err = disableTriggers(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't disable triggers: ", err.Error())
+	}
+
+	numOfImagesBefore, err := getNumOfImages(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of images: ", err.Error())
+	}
+
+	numOfImageAnnotationSuggestionsBefore, err := getNumOfImageAnnotationSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of image annotation suggestions: ", err.Error())
+	}
+
+	numOfLabelSuggestionsBefore, err := getNumOfLabelSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of label suggestions: ", err.Error())
+	}
+
+	numOfAnnotationSuggestionDataBefore, err := getNumOfAnnotationSuggestionData(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of annotation suggestion data: ", err.Error())
+	}
+
+	numOfProductiveLabelSuggestionsBefore, err := getNumOfProductiveLabelSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of productive label suggestions: ", err.Error())
+	}
+
+	numOfImageLabelSuggestionsBefore, err := getNumOfImageLabelSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of image label suggestions: ", err.Error())
+	}
+
+	numOfImageAnnotationSuggestionHistoryEntriesBefore, err := getNumOfImageAnnotationSuggestionHistoryEntries(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of image annotation suggestion history entries: ", err.Error())
+	}
+
+	duplicateLabelSuggestions, err := getDuplicateLabelSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get duplicate label suggestions: ", err.Error())
+	}
+
+	log.Info("Found ", len(duplicateLabelSuggestions), " duplicate labels")
+
+	for _, duplicateLabelSuggestion := range duplicateLabelSuggestions {
+		labelSuggestionIds, err := getLabelSuggestionIdsForLabelSuggestion(tx, duplicateLabelSuggestion)
+		if err != nil {
+			tx.Rollback(context.TODO())
+			log.Fatal("Couldn't get label suggestion ids: ", err.Error())
+		}
+
+		
+		var productiveLabelSuggestionId int64 = -1
+		for _, labelSuggestionId := range labelSuggestionIds {
+			isProductive, err := isLabelSuggestionIdProductive(tx, labelSuggestionId)
+			if err != nil {
+				tx.Rollback(context.TODO())
+				log.Fatal("Couldn't get label suggestion id info: ", err.Error())
+			}
+
+			if isProductive {
+				if productiveLabelSuggestionId != -1 {
+					tx.Rollback(context.TODO())
+					log.Fatal("more than one productive label!")
+				}
+				productiveLabelSuggestionId = labelSuggestionId;
+			}
+		}
+
+		if productiveLabelSuggestionId != -1 {
+			err = unifyDuplicateLabelSuggestions(tx, removeElemFromSlice(labelSuggestionIds, productiveLabelSuggestionId), productiveLabelSuggestionId)
+			if err != nil {
+				tx.Rollback(context.TODO())
+				log.Fatal("Couldn't unify: ", err.Error())
+			}
+		} else {
+			err = unifyDuplicateLabelSuggestions(tx, labelSuggestionIds[1:], labelSuggestionIds[0])
+			if err != nil {
+				tx.Rollback(context.TODO())
+				log.Fatal("Couldn't unify: ", err.Error())
+			}
+		}
+	}
+
+	//just a sanity check if everything is clean now
+	duplicateLabelSuggestionsAfterUnification, err := getDuplicateLabelSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("[Verify] Couldn't get duplicate label suggestions: ", err.Error())
+	}
+	if len(duplicateLabelSuggestionsAfterUnification) > 0 {
+		tx.Rollback(context.TODO())
+		log.Fatal("Verification failed. There are still duplicates! (", len(duplicateLabelSuggestionsAfterUnification), ")")
+	}
+
+	numOfImagesAfter, err := getNumOfImages(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of images: ", err.Error())
+	}
+
+	if numOfImagesBefore != numOfImagesAfter {
+		tx.Rollback(context.TODO())
+		log.Fatal("Num of images doesn't match!")
+	}
+
+	numOfImageAnnotationSuggestionsAfter, err := getNumOfImageAnnotationSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of image annotation suggestions: ", err.Error())
+	}
+
+	if numOfImageAnnotationSuggestionsBefore != (numOfImageAnnotationSuggestionsAfter + unrecoverableDeletedAnnotations) {
+		tx.Rollback(context.TODO())
+		log.Fatal("Num of image annotation suggestions do not match!")
+	}
+
+	numOfAnnotationSuggestionDataAfter, err := getNumOfAnnotationSuggestionData(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of annotation suggestion data: ", err.Error())
+	}
+
+	if numOfAnnotationSuggestionDataBefore != (numOfAnnotationSuggestionDataAfter +  unrecoverableDeletedAnnotationData) {
+		tx.Rollback(context.TODO())
+		log.Fatal("fail: ")
+	}
+
+	numOfLabelSuggestionsAfter, err := getNumOfLabelSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of label suggestions: ", err.Error())
+	}
+
+	if numOfLabelSuggestionsBefore != (numOfLabelSuggestionsAfter + numOfDeleteLabelSuggestions)  {
+		tx.Rollback(context.TODO())
+		log.Fatal("Num of label suggestions do not match!")
+	}
+
+	numOfProductiveLabelSuggestionsAfter, err := getNumOfProductiveLabelSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of productive label suggestions: ", err.Error())
+	}
+
+	if numOfProductiveLabelSuggestionsBefore != numOfProductiveLabelSuggestionsAfter {
+		tx.Rollback(context.TODO())
+		log.Fatal("Num of production label suggestions do not match!")
+	}
+
+	numOfImageLabelSuggestionsAfter, err := getNumOfImageLabelSuggestions(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of image label suggestions")
+	}
+
+	if numOfImageLabelSuggestionsBefore != (numOfImageLabelSuggestionsAfter + numOfDeletedImageLabelSuggestions) {
+		log.Fatal("Num of image label suggestions do not match!")
+	}
+
+	numOfImageAnnotationSuggestionHistoryEntriesAfter, err := getNumOfImageAnnotationSuggestionHistoryEntries(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't get num of image annotation suggestion history entries: ", err.Error())
+	}
+
+	if numOfImageAnnotationSuggestionHistoryEntriesBefore != 
+		(numOfImageAnnotationSuggestionHistoryEntriesAfter + numOfDeletedImageAnnotationSuggestionHistoryEntries) {
+		tx.Rollback(context.TODO())
+		log.Fatal("Num of image annotation suggestion history entries do not match!")
+	}
+
+	log.Info("Verification successful")
+	log.Info("")
+	log.Info("Statistics:")
+	log.Info("Unrecoverable deleted annotations: ", unrecoverableDeletedAnnotations)
+	log.Info("Unrecoverable deleted annotation data: ", unrecoverableDeletedAnnotationData)
+	log.Info("Num of deleted label suggestions: ", numOfDeleteLabelSuggestions)
+	log.Info("Num of deleted image label suggestions: ", numOfDeletedImageLabelSuggestions)
+	log.Info("Num of deleted image annotation suggestion history entries: ", numOfDeletedImageAnnotationSuggestionHistoryEntries)
+	log.Info("Num of updated image annotation suggestion entries: ", numOfUpdatedImageAnnotationSuggestionEntries)
+	log.Info("Num of updated image label suggestion entries: ", numOfUpdatedImageLabelSuggestionEntries)
+	log.Info("Num of deleted trending label suggestion entries: ", numOfDeletedTrendingLabelSuggestionEntries)
+	log.Info("Num of deleted image label suggestion entries: ", numOfDeletedImageLabelSuggestionEntries)
+	log.Info("Num of deleted image annotation suggestion data entries: ", numOfDeletedAnnotationSuggestionDataEntries)
+	log.Info("Num of deleted user image annotation suggestion entries: ", numOfDeletedUserImageAnnotationSuggestionEntries)
+	log.Info("Num of deleted image annotation suggestion entries: ", numOfDeletedImageAnnotationSuggestionEntries)
+	log.Info("-----------------------------------")
+	log.Info("")
+
+	log.Info("The following ", len(githubIssueIds) , " github issues can be closed:")
+	for _, githubIssueId := range githubIssueIds {
+		log.Info(githubIssueId)
+	}
+
+	err = enableTriggers(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't disable triggers: ", err.Error())
+	}
+
+	err = enableIndexScans(tx)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't enable index scans: ", err.Error())
+	}
+
+	err = persistDuplicateLabels(duplicateLabelSuggestions)
+	if err != nil {
+		tx.Rollback(context.TODO())
+		log.Fatal("Couldn't persist duplicate labels: ", err.Error())
+	}
+
+	if *dryRun {
+		log.Info("Just a dry run..rolling back transaction")
+		err := tx.Rollback(context.TODO())
+		if err != nil {
+			log.Fatal("Couldn't rollback transaction: ", err.Error())
+		}
+	} else {
+		err := tx.Commit(context.TODO())
+		if err != nil {
+			log.Fatal("Couldn't commit transaction: ", err.Error())
+		}
+
+
+		unclosedGithubIssues := []int64{}
+		if *closeIssue {
+			for _, githubIssueId := range githubIssueIds {
+				err := closeGithubIssue(int(githubIssueId), *githubRepository, githubProjectOwner, githubApiToken)
+				if err != nil {
+					unclosedGithubIssues = append(unclosedGithubIssues, githubIssueId)
+				}
+			}
+		}
+
+		log.Error("The following github issues couldn't be closed: ")
+		for _, unclosedGithubIssue := range unclosedGithubIssues {
+			log.Error(unclosedGithubIssue)
+		}
+
+		log.Info("done")
+	}
+
+}
diff --git a/src/parser/v2/bin/antlr4_go.sh b/src/parser/v2/bin/antlr4_go.sh
new file mode 100644
index 00000000..55d0bd5a
--- /dev/null
+++ b/src/parser/v2/bin/antlr4_go.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+export CLASSPATH=antlr-4.7.1-complete.jar:$CLASSPATH
+
+java org.antlr.v4.Tool -package imagemonkeyquerylang -Dlanguage=Go ../grammar/ImagemonkeyQueryLang.g4
+
+cp ../grammar/imagemonkeyquerylang_base_listener.go ../
+cp ../grammar/imagemonkeyquerylang_lexer.go ../
+cp ../grammar/imagemonkeyquerylang_listener.go ../
+cp ../grammar/imagemonkeyquerylang_parser.go ../
diff --git a/src/parser/v2/grammar/ImagemonkeyQueryLang.g4 b/src/parser/v2/grammar/ImagemonkeyQueryLang.g4
index 49abe971..ff3a9a3a 100644
--- a/src/parser/v2/grammar/ImagemonkeyQueryLang.g4
+++ b/src/parser/v2/grammar/ImagemonkeyQueryLang.g4
@@ -39,6 +39,8 @@ fragment UPPERLOWERCASE     : [a-zA-Z];
 fragment UPPERLOWERCASEWS   : [a-zA-Z ];
 fragment UUIDBLOCK          : [A-Za-z0-9] [A-Za-z0-9] [A-Za-z0-9] [A-Za-z0-9];
 fragment WS                 : ' ';
+fragment UNDERSCORE         : '_';
+fragment SLASH              : '/';
 fragment DESC               : [Dd] [Ee] [Ss] [Cc];
 fragment ASC                : [Aa] [Ss] [Cc];
 SEP                         : '!';
@@ -54,7 +56,7 @@ ORDER_BY                    : [Oo] [Rr] [Dd] [Ee] [Rr] WS+ [Bb] [Yy];
 ORDER_BY_VALIDATION_DESC    : ORDER_BY WS+ 'validation' WS+ DESC;
 ORDER_BY_VALIDATION_ASC     : ORDER_BY WS+ 'validation' WS+ ASC;
 ORDER_BY_VALIDATION         : ORDER_BY WS+ 'validation';
-LABEL                       : UPPERLOWERCASE | (UPPERLOWERCASE (WS | UPPERLOWERCASE)* UPPERLOWERCASE);
+LABEL                       : UPPERLOWERCASE | (UPPERLOWERCASE (WS | UPPERLOWERCASE | UNDERSCORE | SLASH)* UPPERLOWERCASE);
 UUID                        : UUIDBLOCK UUIDBLOCK '-' UUIDBLOCK '-' UUIDBLOCK '-' UUIDBLOCK '-' UUIDBLOCK UUIDBLOCK UUIDBLOCK;
 VAL                         : [0-9]+;
 AND                         : '&';
@@ -63,4 +65,4 @@ NOT                         : '~';
 LPAR                        : '(';
 RPAR                        : ')';
 
-SKIPPED_TOKENS              : [ \t\r\n]+ -> skip ; // skip spaces, tabs, newlines
\ No newline at end of file
+SKIPPED_TOKENS              : [ \t\r\n]+ -> skip ; // skip spaces, tabs, newlines
diff --git a/src/parser/v2/imagemonkeyquerylang_lexer.go b/src/parser/v2/imagemonkeyquerylang_lexer.go
index 9bd921d6..3e8b28c7 100644
--- a/src/parser/v2/imagemonkeyquerylang_lexer.go
+++ b/src/parser/v2/imagemonkeyquerylang_lexer.go
@@ -14,145 +14,149 @@ var _ = fmt.Printf
 var _ = unicode.IsLetter
 
 var serializedLexerAtn = []uint16{
-	3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 2, 23, 305,
+	3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 2, 23, 315,
 	8, 1, 4, 2, 9, 2, 4, 3, 9, 3, 4, 4, 9, 4, 4, 5, 9, 5, 4, 6, 9, 6, 4, 7,
 	9, 7, 4, 8, 9, 8, 4, 9, 9, 9, 4, 10, 9, 10, 4, 11, 9, 11, 4, 12, 9, 12,
 	4, 13, 9, 13, 4, 14, 9, 14, 4, 15, 9, 15, 4, 16, 9, 16, 4, 17, 9, 17, 4,
 	18, 9, 18, 4, 19, 9, 19, 4, 20, 9, 20, 4, 21, 9, 21, 4, 22, 9, 22, 4, 23,
 	9, 23, 4, 24, 9, 24, 4, 25, 9, 25, 4, 26, 9, 26, 4, 27, 9, 27, 4, 28, 9,
-	28, 4, 29, 9, 29, 4, 30, 9, 30, 3, 2, 3, 2, 3, 3, 3, 3, 3, 4, 3, 4, 3,
-	5, 3, 5, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 7, 3, 7, 3, 8, 3, 8, 3, 8, 3,
-	8, 3, 8, 3, 9, 3, 9, 3, 9, 3, 9, 3, 10, 3, 10, 3, 11, 3, 11, 3, 11, 3,
-	11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11,
-	3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 12, 3, 12, 3, 12, 3, 12, 3,
-	12, 3, 12, 3, 12, 3, 12, 3, 12, 3, 12, 3, 12, 3, 12, 3, 13, 3, 13, 3, 13,
-	3, 13, 3, 13, 3, 13, 3, 13, 3, 13, 3, 13, 3, 13, 3, 13, 3, 13, 3, 13, 3,
-	14, 3, 14, 3, 15, 3, 15, 3, 15, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16,
-	5, 16, 144, 10, 16, 3, 17, 6, 17, 147, 10, 17, 13, 17, 14, 17, 148, 3,
-	17, 3, 17, 6, 17, 153, 10, 17, 13, 17, 14, 17, 154, 5, 17, 157, 10, 17,
-	3, 17, 7, 17, 160, 10, 17, 12, 17, 14, 17, 163, 11, 17, 3, 17, 3, 17, 7,
-	17, 167, 10, 17, 12, 17, 14, 17, 170, 11, 17, 3, 17, 3, 17, 6, 17, 174,
-	10, 17, 13, 17, 14, 17, 175, 3, 17, 3, 17, 3, 18, 3, 18, 3, 18, 3, 18,
-	3, 18, 3, 18, 6, 18, 186, 10, 18, 13, 18, 14, 18, 187, 3, 18, 3, 18, 3,
-	18, 3, 19, 3, 19, 6, 19, 195, 10, 19, 13, 19, 14, 19, 196, 3, 19, 3, 19,
-	3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 3, 19, 6,
-	19, 211, 10, 19, 13, 19, 14, 19, 212, 3, 19, 3, 19, 3, 20, 3, 20, 6, 20,
-	219, 10, 20, 13, 20, 14, 20, 220, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3,
-	20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 6, 20, 235, 10, 20, 13, 20,
-	14, 20, 236, 3, 20, 3, 20, 3, 21, 3, 21, 6, 21, 243, 10, 21, 13, 21, 14,
-	21, 244, 3, 21, 3, 21, 3, 21, 3, 21, 3, 21, 3, 21, 3, 21, 3, 21, 3, 21,
-	3, 21, 3, 21, 3, 22, 3, 22, 3, 22, 3, 22, 7, 22, 262, 10, 22, 12, 22, 14,
-	22, 265, 11, 22, 3, 22, 3, 22, 5, 22, 269, 10, 22, 3, 23, 3, 23, 3, 23,
-	3, 23, 3, 23, 3, 23, 3, 23, 3, 23, 3, 23, 3, 23, 3, 23, 3, 23, 3, 23, 3,
-	24, 6, 24, 285, 10, 24, 13, 24, 14, 24, 286, 3, 25, 3, 25, 3, 26, 3, 26,
-	3, 27, 3, 27, 3, 28, 3, 28, 3, 29, 3, 29, 3, 30, 6, 30, 300, 10, 30, 13,
-	30, 14, 30, 301, 3, 30, 3, 30, 2, 2, 31, 3, 2, 5, 2, 7, 2, 9, 2, 11, 2,
-	13, 2, 15, 2, 17, 2, 19, 3, 21, 4, 23, 5, 25, 6, 27, 7, 29, 8, 31, 9, 33,
-	10, 35, 11, 37, 12, 39, 13, 41, 14, 43, 15, 45, 16, 47, 17, 49, 18, 51,
-	19, 53, 20, 55, 21, 57, 22, 59, 23, 3, 2, 19, 3, 2, 99, 124, 3, 2, 67,
-	92, 4, 2, 67, 92, 99, 124, 5, 2, 34, 34, 67, 92, 99, 124, 5, 2, 50, 59,
-	67, 92, 99, 124, 4, 2, 70, 70, 102, 102, 4, 2, 71, 71, 103, 103, 4, 2,
-	85, 85, 117, 117, 4, 2, 69, 69, 101, 101, 4, 2, 67, 67, 99, 99, 4, 2, 62,
-	62, 64, 64, 4, 2, 81, 81, 113, 113, 4, 2, 84, 84, 116, 116, 4, 2, 68, 68,
-	100, 100, 4, 2, 91, 91, 123, 123, 3, 2, 50, 59, 5, 2, 11, 12, 15, 15, 34,
-	34, 2, 316, 2, 19, 3, 2, 2, 2, 2, 21, 3, 2, 2, 2, 2, 23, 3, 2, 2, 2, 2,
-	25, 3, 2, 2, 2, 2, 27, 3, 2, 2, 2, 2, 29, 3, 2, 2, 2, 2, 31, 3, 2, 2, 2,
-	2, 33, 3, 2, 2, 2, 2, 35, 3, 2, 2, 2, 2, 37, 3, 2, 2, 2, 2, 39, 3, 2, 2,
-	2, 2, 41, 3, 2, 2, 2, 2, 43, 3, 2, 2, 2, 2, 45, 3, 2, 2, 2, 2, 47, 3, 2,
-	2, 2, 2, 49, 3, 2, 2, 2, 2, 51, 3, 2, 2, 2, 2, 53, 3, 2, 2, 2, 2, 55, 3,
-	2, 2, 2, 2, 57, 3, 2, 2, 2, 2, 59, 3, 2, 2, 2, 3, 61, 3, 2, 2, 2, 5, 63,
-	3, 2, 2, 2, 7, 65, 3, 2, 2, 2, 9, 67, 3, 2, 2, 2, 11, 69, 3, 2, 2, 2, 13,
-	74, 3, 2, 2, 2, 15, 76, 3, 2, 2, 2, 17, 81, 3, 2, 2, 2, 19, 85, 3, 2, 2,
-	2, 21, 87, 3, 2, 2, 2, 23, 107, 3, 2, 2, 2, 25, 119, 3, 2, 2, 2, 27, 132,
-	3, 2, 2, 2, 29, 134, 3, 2, 2, 2, 31, 143, 3, 2, 2, 2, 33, 146, 3, 2, 2,
-	2, 35, 179, 3, 2, 2, 2, 37, 192, 3, 2, 2, 2, 39, 216, 3, 2, 2, 2, 41, 240,
-	3, 2, 2, 2, 43, 268, 3, 2, 2, 2, 45, 270, 3, 2, 2, 2, 47, 284, 3, 2, 2,
-	2, 49, 288, 3, 2, 2, 2, 51, 290, 3, 2, 2, 2, 53, 292, 3, 2, 2, 2, 55, 294,
-	3, 2, 2, 2, 57, 296, 3, 2, 2, 2, 59, 299, 3, 2, 2, 2, 61, 62, 9, 2, 2,
-	2, 62, 4, 3, 2, 2, 2, 63, 64, 9, 3, 2, 2, 64, 6, 3, 2, 2, 2, 65, 66, 9,
-	4, 2, 2, 66, 8, 3, 2, 2, 2, 67, 68, 9, 5, 2, 2, 68, 10, 3, 2, 2, 2, 69,
-	70, 9, 6, 2, 2, 70, 71, 9, 6, 2, 2, 71, 72, 9, 6, 2, 2, 72, 73, 9, 6, 2,
-	2, 73, 12, 3, 2, 2, 2, 74, 75, 7, 34, 2, 2, 75, 14, 3, 2, 2, 2, 76, 77,
-	9, 7, 2, 2, 77, 78, 9, 8, 2, 2, 78, 79, 9, 9, 2, 2, 79, 80, 9, 10, 2, 2,
-	80, 16, 3, 2, 2, 2, 81, 82, 9, 11, 2, 2, 82, 83, 9, 9, 2, 2, 83, 84, 9,
-	10, 2, 2, 84, 18, 3, 2, 2, 2, 85, 86, 7, 35, 2, 2, 86, 20, 3, 2, 2, 2,
-	87, 88, 7, 99, 2, 2, 88, 89, 7, 112, 2, 2, 89, 90, 7, 112, 2, 2, 90, 91,
-	7, 113, 2, 2, 91, 92, 7, 118, 2, 2, 92, 93, 7, 99, 2, 2, 93, 94, 7, 118,
-	2, 2, 94, 95, 7, 107, 2, 2, 95, 96, 7, 113, 2, 2, 96, 97, 7, 112, 2, 2,
-	97, 98, 7, 48, 2, 2, 98, 99, 7, 101, 2, 2, 99, 100, 7, 113, 2, 2, 100,
-	101, 7, 120, 2, 2, 101, 102, 7, 103, 2, 2, 102, 103, 7, 116, 2, 2, 103,
-	104, 7, 99, 2, 2, 104, 105, 7, 105, 2, 2, 105, 106, 7, 103, 2, 2, 106,
-	22, 3, 2, 2, 2, 107, 108, 7, 107, 2, 2, 108, 109, 7, 111, 2, 2, 109, 110,
-	7, 99, 2, 2, 110, 111, 7, 105, 2, 2, 111, 112, 7, 103, 2, 2, 112, 113,
-	7, 48, 2, 2, 113, 114, 7, 121, 2, 2, 114, 115, 7, 107, 2, 2, 115, 116,
-	7, 102, 2, 2, 116, 117, 7, 118, 2, 2, 117, 118, 7, 106, 2, 2, 118, 24,
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+	271, 269, 3, 2, 2, 2, 271, 270, 3, 2, 2, 2, 272, 275, 3, 2, 2, 2, 273,
+	271, 3, 2, 2, 2, 273, 274, 3, 2, 2, 2, 274, 276, 3, 2, 2, 2, 275, 273,
+	3, 2, 2, 2, 276, 277, 5, 7, 4, 2, 277, 279, 3, 2, 2, 2, 278, 265, 3, 2,
+	2, 2, 278, 266, 3, 2, 2, 2, 279, 48, 3, 2, 2, 2, 280, 281, 5, 11, 6, 2,
+	281, 282, 5, 11, 6, 2, 282, 283, 7, 47, 2, 2, 283, 284, 5, 11, 6, 2, 284,
+	285, 7, 47, 2, 2, 285, 286, 5, 11, 6, 2, 286, 287, 7, 47, 2, 2, 287, 288,
+	5, 11, 6, 2, 288, 289, 7, 47, 2, 2, 289, 290, 5, 11, 6, 2, 290, 291, 5,
+	11, 6, 2, 291, 292, 5, 11, 6, 2, 292, 50, 3, 2, 2, 2, 293, 295, 9, 17,
+	2, 2, 294, 293, 3, 2, 2, 2, 295, 296, 3, 2, 2, 2, 296, 294, 3, 2, 2, 2,
+	296, 297, 3, 2, 2, 2, 297, 52, 3, 2, 2, 2, 298, 299, 7, 40, 2, 2, 299,
+	54, 3, 2, 2, 2, 300, 301, 7, 126, 2, 2, 301, 56, 3, 2, 2, 2, 302, 303,
+	7, 128, 2, 2, 303, 58, 3, 2, 2, 2, 304, 305, 7, 42, 2, 2, 305, 60, 3, 2,
+	2, 2, 306, 307, 7, 43, 2, 2, 307, 62, 3, 2, 2, 2, 308, 310, 9, 18, 2, 2,
+	309, 308, 3, 2, 2, 2, 310, 311, 3, 2, 2, 2, 311, 309, 3, 2, 2, 2, 311,
+	312, 3, 2, 2, 2, 312, 313, 3, 2, 2, 2, 313, 314, 8, 32, 2, 2, 314, 64,
+	3, 2, 2, 2, 21, 2, 151, 156, 162, 164, 169, 176, 183, 195, 204, 220, 228,
+	244, 252, 271, 273, 278, 296, 311, 3, 8, 2, 2,
 }
 
 var lexerDeserializer = antlr.NewATNDeserializer(nil)
@@ -181,10 +185,11 @@ var lexerSymbolicNames = []string{
 
 var lexerRuleNames = []string{
 	"LOWERCASE", "UPPERCASE", "UPPERLOWERCASE", "UPPERLOWERCASEWS", "UUIDBLOCK",
-	"WS", "DESC", "ASC", "SEP", "ANNOTATION_COVERAGE_PREFIX", "IMAGE_WIDTH_PREFIX",
-	"IMAGE_HEIGHT_PREFIX", "PERCENT", "PIXEL", "OPERATOR", "ASSIGNMENT", "ORDER_BY",
-	"ORDER_BY_VALIDATION_DESC", "ORDER_BY_VALIDATION_ASC", "ORDER_BY_VALIDATION",
-	"LABEL", "UUID", "VAL", "AND", "OR", "NOT", "LPAR", "RPAR", "SKIPPED_TOKENS",
+	"WS", "UNDERSCORE", "SLASH", "DESC", "ASC", "SEP", "ANNOTATION_COVERAGE_PREFIX",
+	"IMAGE_WIDTH_PREFIX", "IMAGE_HEIGHT_PREFIX", "PERCENT", "PIXEL", "OPERATOR",
+	"ASSIGNMENT", "ORDER_BY", "ORDER_BY_VALIDATION_DESC", "ORDER_BY_VALIDATION_ASC",
+	"ORDER_BY_VALIDATION", "LABEL", "UUID", "VAL", "AND", "OR", "NOT", "LPAR",
+	"RPAR", "SKIPPED_TOKENS",
 }
 
 type ImagemonkeyQueryLangLexer struct {
diff --git a/src/parser/v2/parser_test.go b/src/parser/v2/parser_test.go
index e7bb3037..5bd944ea 100644
--- a/src/parser/v2/parser_test.go
+++ b/src/parser/v2/parser_test.go
@@ -613,3 +613,27 @@ func TestQueryImageUnlabeledAndLabelShouldSucceed(t *testing.T) {
 	equals(t, parseResult.Query, "q.accessors @> ARRAY[$1]::text[] OR is_unlabeled = $2")
 	equals(t, parseResult.QueryValues, []interface{}{"apple", "true"})
 }
+
+func TestQueryImageWithUnderscoreInLabelName(t *testing.T) {
+	queryParser := NewQueryParser("blue_fish")
+	parseResult, err := queryParser.Parse()
+	ok(t, err)
+	equals(t, parseResult.Query, "q.accessors @> ARRAY[$1]::text[]")
+	equals(t, parseResult.QueryValues, []interface{}{"blue_fish"})
+}
+
+func TestQueryImageWithSlashInLabelName(t *testing.T) {
+	queryParser := NewQueryParser("blue/fish")
+	parseResult, err := queryParser.Parse()
+	ok(t, err)
+	equals(t, parseResult.Query, "q.accessors @> ARRAY[$1]::text[]")
+	equals(t, parseResult.QueryValues, []interface{}{"blue/fish"})
+}
+
+func TestQueryImageWithSlashAndUnderscoreInLabelName(t *testing.T) {
+	queryParser := NewQueryParser("blue/red_fish")
+	parseResult, err := queryParser.Parse()
+	ok(t, err)
+	equals(t, parseResult.Query, "q.accessors @> ARRAY[$1]::text[]")
+	equals(t, parseResult.QueryValues, []interface{}{"blue/red_fish"})
+}
diff --git a/tests/go.sum b/tests/go.sum
index 5d00832a..9507fd4a 100644
--- a/tests/go.sum
+++ b/tests/go.sum
@@ -52,6 +52,7 @@ github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASu
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
 github.com/h2non/filetype v1.0.8 h1:le8gpf+FQA0/DlDABbtisA1KiTS0Xi+YSC/E8yY3Y14=
 github.com/h2non/filetype v1.0.8/go.mod h1:isekKqOuhMj+s/7r3rIeTErIRy4Rub5uBWHfvMusLMU=
+github.com/jackc/chunkreader v1.0.0 h1:4s39bBR8ByfqH+DKm8rQA3E1LHZWB9XWcrz8fqaZbe0=
 github.com/jackc/chunkreader v1.0.0/go.mod h1:RT6O25fNZIuasFJRyZ4R/Y2BbhasbmZXF9QQ7T3kePo=
 github.com/jackc/chunkreader/v2 v2.0.0 h1:DUwgMQuuPnS0rhMXenUtZpqZqrR/30NWY+qQvTpSvEs=
 github.com/jackc/chunkreader/v2 v2.0.0/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
@@ -65,6 +66,7 @@ github.com/jackc/pgio v1.0.0/go.mod h1:oP+2QK2wFfUWgr+gxjoBH9KGBb31Eio69xUb0w5bY
 github.com/jackc/pgmock v0.0.0-20190831213851-13a1b77aafa2/go.mod h1:fGZlG77KXmcq05nJLRkk0+p82V8B8Dw8KN2/V9c/OAE=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgproto3 v1.1.0 h1:FYYE4yRw+AgI8wXIinMlNjBbp/UitDJwfj5LqqewP1A=
 github.com/jackc/pgproto3 v1.1.0/go.mod h1:eR5FA3leWg7p9aeAqi37XOTgTIbkABlvcPB3E5rlc78=
 github.com/jackc/pgproto3/v2 v2.0.0-alpha1.0.20190420180111-c116219b62db/go.mod h1:bhq50y+xrl9n5mRYyCBFKkpRVTLYJVWeCc+mEAI3yXA=
 github.com/jackc/pgproto3/v2 v2.0.0-alpha1.0.20190609003834-432c2951c711/go.mod h1:uH0AWtUmuShn0bcesswc4aBTWGvw0cAxIJp+6OB//Wg=
diff --git a/tests/helper.go b/tests/helper.go
index c7c8808b..df60bda3 100644
--- a/tests/helper.go
+++ b/tests/helper.go
@@ -78,6 +78,8 @@ func notEquals(tb testing.TB, exp, act interface{}) {
 }
 
 func setupTestCase(t *testing.T) func(t *testing.T) {
+	setupInfrastructure()
+	
 	t.Log("setup test case..clearing all database tables")
 
 	err := db.ClearAll()
diff --git a/tests/tests.go b/tests/tests.go
index bf838578..a596546d 100644
--- a/tests/tests.go
+++ b/tests/tests.go
@@ -18,11 +18,11 @@ var X_CLIENT_SECRET string
 var DB_PORT string = "5432"
 var REDIS_ADDRESS string = ":6379"
 
-func init() {
-	unverifiedDonationsDir := flag.String("unverified_donations_dir", "../unverified_donations/", "Path to unverified donations directory")
-	donationsDir := flag.String("donations_dir", "../donations/", "Path to donations directory")
-	flag.Parse()
+var unverifiedDonationsDir = flag.String("unverified_donations_dir", "../unverified_donations/", "Path to unverified donations directory")
+var donationsDir = flag.String("donations_dir", "../donations/", "Path to donations directory")
 
+
+func setupInfrastructure() {
 	UNVERIFIED_DONATIONS_DIR = *unverifiedDonationsDir
 	DONATIONS_DIR = *donationsDir