diff --git a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-08-29.sql b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-08-29.sql
index e85545a571b76..210f1dc1d55eb 100644
--- a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-08-29.sql
+++ b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-08-29.sql
@@ -3,6 +3,6 @@ ALTER TABLE `#__modules` MODIFY `publish_down` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__modules` MODIFY `checked_out_time` datetime NULL DEFAULT NULL;
 
 -- Use 0 instead of '0000-00-00 00:00:00' if you get 'Invalid default value for ...'
-UPDATE `#__modules` SET `publish_up` =  NULL WHERE `publish_up` = '0000-00-00 00:00:00';
-UPDATE `#__modules` SET `publish_down` =  NULL WHERE `publish_down` = '0000-00-00 00:00:00';
-UPDATE `#__modules` SET `checked_out_time` =  NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
+UPDATE `#__modules` SET `publish_up` = NULL WHERE `publish_up` = '0000-00-00 00:00:00';
+UPDATE `#__modules` SET `publish_down` = NULL WHERE `publish_down` = '0000-00-00 00:00:00';
+UPDATE `#__modules` SET `checked_out_time` = NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-04-22.sql b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-04-22.sql
index 723de93054603..ec3bc4dd67fd4 100644
--- a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-04-22.sql
+++ b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-04-22.sql
@@ -2,6 +2,6 @@ ALTER TABLE `#__contact_details` MODIFY `publish_up` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__contact_details` MODIFY `publish_down` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__contact_details` MODIFY `checked_out_time` datetime NULL DEFAULT NULL;
 
-UPDATE `#__contact_details` SET `publish_up` =  NULL WHERE `publish_up` = '0000-00-00 00:00:00';
-UPDATE `#__contact_details` SET `publish_down` =  NULL WHERE `publish_down` = '0000-00-00 00:00:00';
-UPDATE `#__contact_details` SET `checked_out_time` =  NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
+UPDATE `#__contact_details` SET `publish_up` = NULL WHERE `publish_up` = '0000-00-00 00:00:00';
+UPDATE `#__contact_details` SET `publish_down` = NULL WHERE `publish_down` = '0000-00-00 00:00:00';
+UPDATE `#__contact_details` SET `checked_out_time` = NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-06-28.sql b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-06-28.sql
index 51e58c48c0cf4..16585d1e3c0c6 100644
--- a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-06-28.sql
+++ b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-06-28.sql
@@ -2,6 +2,6 @@ ALTER TABLE `#__banners` MODIFY `publish_up` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__banners` MODIFY `publish_down` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__banners` MODIFY `checked_out_time` datetime NULL DEFAULT NULL;
 
-UPDATE `#__banners` SET `publish_up` =  NULL WHERE `publish_up` = '0000-00-00 00:00:00';
-UPDATE `#__banners` SET `publish_down` =  NULL WHERE `publish_down` = '0000-00-00 00:00:00';
-UPDATE `#__banners` SET `checked_out_time` =  NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
+UPDATE `#__banners` SET `publish_up` = NULL WHERE `publish_up` = '0000-00-00 00:00:00';
+UPDATE `#__banners` SET `publish_down` = NULL WHERE `publish_down` = '0000-00-00 00:00:00';
+UPDATE `#__banners` SET `checked_out_time` = NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-06-29.sql b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-06-29.sql
index e8eb008b074a7..36a43fcb382c1 100644
--- a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-06-29.sql
+++ b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-06-29.sql
@@ -2,6 +2,6 @@ ALTER TABLE `#__newsfeeds` MODIFY `publish_up` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__newsfeeds` MODIFY `publish_down` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__newsfeeds` MODIFY `checked_out_time` datetime NULL DEFAULT NULL;
 
-UPDATE `#__newsfeeds` SET `publish_up` =  NULL WHERE `publish_up` = '0000-00-00 00:00:00';
-UPDATE `#__newsfeeds` SET `publish_down` =  NULL WHERE `publish_down` = '0000-00-00 00:00:00';
-UPDATE `#__newsfeeds` SET `checked_out_time` =  NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
+UPDATE `#__newsfeeds` SET `publish_up` = NULL WHERE `publish_up` = '0000-00-00 00:00:00';
+UPDATE `#__newsfeeds` SET `publish_down` = NULL WHERE `publish_down` = '0000-00-00 00:00:00';
+UPDATE `#__newsfeeds` SET `checked_out_time` = NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-09-14.sql b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-09-14.sql
index 2faf93fd7427d..eec96a1aa255d 100644
--- a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-09-14.sql
+++ b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-09-14.sql
@@ -2,6 +2,6 @@ ALTER TABLE `#__content` MODIFY `publish_up` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__content` MODIFY `publish_down` datetime NULL DEFAULT NULL;
 ALTER TABLE `#__content` MODIFY `checked_out_time` datetime NULL DEFAULT NULL;
 
-UPDATE `#__content` SET `publish_up` =  NULL WHERE `publish_up` = '0000-00-00 00:00:00';
-UPDATE `#__content` SET `publish_down` =  NULL WHERE `publish_down` = '0000-00-00 00:00:00';
-UPDATE `#__content` SET `checked_out_time` =  NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
+UPDATE `#__content` SET `publish_up` = NULL WHERE `publish_up` = '0000-00-00 00:00:00';
+UPDATE `#__content` SET `publish_down` = NULL WHERE `publish_down` = '0000-00-00 00:00:00';
+UPDATE `#__content` SET `checked_out_time` = NULL WHERE `checked_out_time` = '0000-00-00 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2018-08-29.sql b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2018-08-29.sql
index 0bccf6ee954b0..80c8a1b3f7349 100644
--- a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2018-08-29.sql
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2018-08-29.sql
@@ -7,6 +7,6 @@ ALTER TABLE "#__modules" ALTER COLUMN "publish_down" DROP DEFAULT;
 ALTER TABLE "#__modules" ALTER COLUMN "checked_out_time" DROP NOT NULL;
 ALTER TABLE "#__modules" ALTER COLUMN "checked_out_time" DROP DEFAULT;
 
-UPDATE "#__modules" SET "publish_up" =  NULL WHERE "publish_up" = '1970-01-01 00:00:00';
-UPDATE "#__modules" SET "publish_down" =  NULL WHERE "publish_down" = '1970-01-01 00:00:00';
-UPDATE "#__modules" SET "checked_out_time" =  NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
+UPDATE "#__modules" SET "publish_up" = NULL WHERE "publish_up" = '1970-01-01 00:00:00';
+UPDATE "#__modules" SET "publish_down" = NULL WHERE "publish_down" = '1970-01-01 00:00:00';
+UPDATE "#__modules" SET "checked_out_time" = NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-04-22.sql b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-04-22.sql
index f4155f80cef04..d7917bdb2635d 100644
--- a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-04-22.sql
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-04-22.sql
@@ -7,6 +7,6 @@ ALTER TABLE "#__contact_details" ALTER COLUMN "publish_down" DROP DEFAULT;
 ALTER TABLE "#__contact_details" ALTER COLUMN "checked_out_time" DROP NOT NULL;
 ALTER TABLE "#__contact_details" ALTER COLUMN "checked_out_time" DROP DEFAULT;
 
-UPDATE "#__contact_details" SET "publish_up" =  NULL WHERE "publish_up" = '1970-01-01 00:00:00';
-UPDATE "#__contact_details" SET "publish_down" =  NULL WHERE "publish_down" = '1970-01-01 00:00:00';
-UPDATE "#__contact_details" SET "checked_out_time" =  NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
+UPDATE "#__contact_details" SET "publish_up" = NULL WHERE "publish_up" = '1970-01-01 00:00:00';
+UPDATE "#__contact_details" SET "publish_down" = NULL WHERE "publish_down" = '1970-01-01 00:00:00';
+UPDATE "#__contact_details" SET "checked_out_time" = NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-06-28.sql b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-06-28.sql
index 9b9dcc8555e6a..35fceeae4df88 100644
--- a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-06-28.sql
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-06-28.sql
@@ -7,6 +7,6 @@ ALTER TABLE "#__banners" ALTER COLUMN "publish_down" DROP DEFAULT;
 ALTER TABLE "#__banners" ALTER COLUMN "checked_out_time" DROP NOT NULL;
 ALTER TABLE "#__banners" ALTER COLUMN "checked_out_time" DROP DEFAULT;
 
-UPDATE "#__banners" SET "publish_up" =  NULL WHERE "publish_up" = '1970-01-01 00:00:00';
-UPDATE "#__banners" SET "publish_down" =  NULL WHERE "publish_down" = '1970-01-01 00:00:00';
-UPDATE "#__banners" SET "checked_out_time" =  NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
+UPDATE "#__banners" SET "publish_up" = NULL WHERE "publish_up" = '1970-01-01 00:00:00';
+UPDATE "#__banners" SET "publish_down" = NULL WHERE "publish_down" = '1970-01-01 00:00:00';
+UPDATE "#__banners" SET "checked_out_time" = NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-06-29.sql b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-06-29.sql
index afa5fabb45232..bf1f50f89fa6c 100644
--- a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-06-29.sql
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-06-29.sql
@@ -7,6 +7,6 @@ ALTER TABLE "#__newsfeeds" ALTER COLUMN "publish_down" DROP DEFAULT;
 ALTER TABLE "#__newsfeeds" ALTER COLUMN "checked_out_time" DROP NOT NULL;
 ALTER TABLE "#__newsfeeds" ALTER COLUMN "checked_out_time" DROP DEFAULT;
 
-UPDATE "#__newsfeeds" SET "publish_up" =  NULL WHERE "publish_up" = '1970-01-01 00:00:00';
-UPDATE "#__newsfeeds" SET "publish_down" =  NULL WHERE "publish_down" = '1970-01-01 00:00:00';
-UPDATE "#__newsfeeds" SET "checked_out_time" =  NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
+UPDATE "#__newsfeeds" SET "publish_up" = NULL WHERE "publish_up" = '1970-01-01 00:00:00';
+UPDATE "#__newsfeeds" SET "publish_down" = NULL WHERE "publish_down" = '1970-01-01 00:00:00';
+UPDATE "#__newsfeeds" SET "checked_out_time" = NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-09-14.sql b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-09-14.sql
index 1e0f7f5f6c38a..8ae870d3d45b8 100644
--- a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-09-14.sql
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-09-14.sql
@@ -7,6 +7,6 @@ ALTER TABLE "#__content" ALTER COLUMN "publish_down" DROP DEFAULT;
 ALTER TABLE "#__content" ALTER COLUMN "checked_out_time" DROP NOT NULL;
 ALTER TABLE "#__content" ALTER COLUMN "checked_out_time" DROP DEFAULT;
 
-UPDATE "#__content" SET "publish_up" =  NULL WHERE "publish_up" = '1970-01-01 00:00:00';
-UPDATE "#__content" SET "publish_down" =  NULL WHERE "publish_down" = '1970-01-01 00:00:00';
-UPDATE "#__content" SET "checked_out_time" =  NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';
+UPDATE "#__content" SET "publish_up" = NULL WHERE "publish_up" = '1970-01-01 00:00:00';
+UPDATE "#__content" SET "publish_down" = NULL WHERE "publish_down" = '1970-01-01 00:00:00';
+UPDATE "#__content" SET "checked_out_time" = NULL WHERE "checked_out_time" = '1970-01-01 00:00:00';