diff --git a/backend/src/database/d1.ts b/backend/src/database/d1.ts
index 101b0da..a512d97 100644
--- a/backend/src/database/d1.ts
+++ b/backend/src/database/d1.ts
@@ -21,6 +21,10 @@ const qb: QueryBuilder = {
 	insertOrIgnore(q: string): string {
 		return `INSERT OR IGNORE ${q}`
 	},
+
+	psqlOnly(): string {
+		return ''
+	},
 }
 
 export default function make({ DATABASE }: Pick<Env, 'DATABASE'>): Database {
diff --git a/backend/src/database/index.ts b/backend/src/database/index.ts
index 72cfe86..0e854fc 100644
--- a/backend/src/database/index.ts
+++ b/backend/src/database/index.ts
@@ -31,6 +31,7 @@ export interface QueryBuilder {
 	set(array: string): string
 	epoch(): string
 	insertOrIgnore(q: string): string
+	psqlOnly(raw: string): string
 }
 
 export async function getDatabase(env: Pick<Env, 'DATABASE' | 'NEON_DATABASE_URL'>): Promise<Database> {
diff --git a/backend/src/database/neon.ts b/backend/src/database/neon.ts
index b2bec7d..c4c1f6d 100644
--- a/backend/src/database/neon.ts
+++ b/backend/src/database/neon.ts
@@ -30,6 +30,10 @@ const qb: QueryBuilder = {
 	insertOrIgnore(q: string): string {
 		return `INSERT ${q} ON CONFLICT DO NOTHING`
 	},
+
+	psqlOnly(q: string): string {
+		return q
+	},
 }
 
 export default async function make(env: Pick<Env, 'NEON_DATABASE_URL'>): Promise<Database> {
diff --git a/backend/src/mastodon/timeline.ts b/backend/src/mastodon/timeline.ts
index b57a283..7627897 100644
--- a/backend/src/mastodon/timeline.ts
+++ b/backend/src/mastodon/timeline.ts
@@ -63,7 +63,7 @@ WHERE
      AND outbox_objects.actor_id IN ${db.qb.set('?2')}
      AND ${db.qb.jsonExtractIsNull('objects.properties', 'inReplyTo')}
      AND (outbox_objects.target = '${PUBLIC_GROUP}' OR outbox_objects.target IN ${db.qb.set('?3')})
-GROUP BY objects.id
+GROUP BY objects.id ${db.qb.psqlOnly(', actors.id, outbox_objects.actor_id, outbox_objects.published_date')}
 ORDER by outbox_objects.published_date DESC
 LIMIT ?4
 `
@@ -139,7 +139,9 @@ WHERE objects.type='Note'
       AND ${db.qb.jsonExtractIsNull('objects.properties', 'inReplyTo')}
       AND outbox_objects.target = '${PUBLIC_GROUP}'
       ${hashtagFilter}
-GROUP BY objects.id
+GROUP BY objects.id ${db.qb.psqlOnly(
+		', actors.id, actors.cdate, actors.properties, outbox_objects.actor_id, outbox_objects.published_date'
+	)}
 ORDER by outbox_objects.published_date DESC
 LIMIT ?1 OFFSET ?2
 `
diff --git a/functions/api/v1/accounts/[id]/statuses.ts b/functions/api/v1/accounts/[id]/statuses.ts
index 2ef1de2..04bc3f3 100644
--- a/functions/api/v1/accounts/[id]/statuses.ts
+++ b/functions/api/v1/accounts/[id]/statuses.ts
@@ -143,7 +143,7 @@ WHERE objects.type='Note'
       ${withReplies ? '' : 'AND ' + db.qb.jsonExtractIsNull('objects.properties', 'inReplyTo')}
       AND outbox_objects.target = '${PUBLIC_GROUP}'
       AND outbox_objects.actor_id = ?1
-      AND outbox_objects.cdate > ?2
+      AND outbox_objects.cdate > ?2${db.qb.psqlOnly('::timestamp')}
 ORDER by outbox_objects.published_date DESC
 LIMIT ?3 OFFSET ?4
 `