Reverted getDateQuery logic.

lib/queries.js

@@ -14,24 +14,12 @@ export function getDatabase() {
   return type;
 }
 
-export function getDateStringQuery(data, unit) {
-  const db = getDatabase();
-
-  if (db === POSTGRESQL) {
-    return `to_char(${data}, '${POSTGRESQL_DATE_FORMATS[unit]}')`;
-  }
-
-  if (db === MYSQL) {
-    return `DATE_FORMAT(${data}, '${MYSQL_DATE_FORMATS[unit]}')`;
-  }
-}
-
 export function getDateQuery(field, unit, timezone) {
   const db = getDatabase();
 
   if (db === POSTGRESQL) {
     if (timezone) {
-      return `date_trunc('${unit}', ${field} at time zone '${timezone}')`;
+      return `to_char(date_trunc('${unit}', ${field} at time zone '${timezone}'), '${POSTGRESQL_DATE_FORMATS[unit]}')`;
     }
     return `date_trunc('${unit}', ${field})`;
   }
@@ -40,7 +28,7 @@ export function getDateQuery(field, unit, timezone) {
     if (timezone) {
       const tz = moment.tz(timezone).format('Z');
 
-      return `convert_tz(${field},'+00:00','${tz}')`;
+      return `date_format(convert_tz(${field},'+00:00','${tz}', '${MYSQL_DATE_FORMATS[unit]}')`;
     }
 
     return `${field}`;

queries/analytics/event/getEventMetrics.js

@@ -1,4 +1,4 @@
-import { getDateQuery, getDateStringQuery, getFilterQuery, rawQuery } from 'lib/queries';
+import { getDateQuery, getFilterQuery, rawQuery } from 'lib/queries';
 
 export function getEventMetrics(
   website_id,
@@ -14,7 +14,7 @@ export function getEventMetrics(
     `
     select
       event_value x,
-      ${getDateStringQuery(getDateQuery('created_at', unit, timezone), unit)} t,
+      ${getDateQuery('created_at', unit, timezone)} t,
       count(*) y
     from event
     where website_id=$1

queries/analytics/pageview/getPageviewStats.js

@@ -1,4 +1,4 @@
-import { parseFilters, rawQuery, getDateQuery, getDateStringQuery } from 'lib/queries';
+import { parseFilters, rawQuery, getDateQuery } from 'lib/queries';
 
 export function getPageviewStats(
   website_id,
@@ -20,7 +20,7 @@ export function getPageviewStats(
   return rawQuery(
     `
     select
-      ${getDateStringQuery('g.t', unit)} as t, 
+      g.t as t, 
       g.y as y
     from
       (select ${getDateQuery('pageview.created_at', unit, timezone)} t,