diff --git a/.drone.jsonnet b/.drone.jsonnet
index ee60dc2084f..4033c02aeaf 100644
--- a/.drone.jsonnet
+++ b/.drone.jsonnet
@@ -41,7 +41,7 @@ local Pipeline(test_set, database, services) = {
 			"stable*"
 		],
 		event: (
-			if database == "sqlite" then ["pull_request", "push"] else ["push"]
+			if database == "mysql" then ["pull_request", "push"] else ["push"]
 		)
 	}
 };
@@ -77,7 +77,8 @@ local PipelineMySQL(test_set) = Pipeline(
 			command: [
 				"--innodb_large_prefix=true",
 				"--innodb_file_format=barracuda",
-				"--innodb_file_per_table=true"
+				"--innodb_file_per_table=true",
+				"--sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION"
 			],
 			tmpfs: [
 				"/var/lib/mysql"
diff --git a/.drone.yml b/.drone.yml
index 0fb8eeedf04..47fad6ef9e4 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -26,7 +26,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -56,7 +55,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -86,7 +84,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -117,7 +114,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -148,7 +144,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -178,7 +173,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -208,7 +202,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -238,7 +231,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -268,7 +260,6 @@ trigger:
   - master
   - stable*
   event:
-  - pull_request
   - push
 ---
 kind: pipeline
@@ -280,6 +271,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -311,6 +303,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline
@@ -322,6 +315,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -353,6 +347,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline
@@ -364,6 +359,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -395,6 +391,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline
@@ -406,6 +403,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -438,6 +436,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline
@@ -449,6 +448,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -481,6 +481,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline
@@ -492,6 +493,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -523,6 +525,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline
@@ -534,6 +537,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -565,6 +569,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline
@@ -576,6 +581,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -607,6 +613,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline
@@ -618,6 +625,7 @@ services:
   - --innodb_large_prefix=true
   - --innodb_file_format=barracuda
   - --innodb_file_per_table=true
+  - --sql-mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
   environment:
     MYSQL_DATABASE: oc_autotest
     MYSQL_PASSWORD: owncloud
@@ -649,6 +657,7 @@ trigger:
   - master
   - stable*
   event:
+  - pull_request
   - push
 ---
 kind: pipeline