From: Seamus Lee <seamuslee001@gmail.com>
Date: Wed, 23 Dec 2020 20:26:49 +0000 (+1100)
Subject: dev/core#2272 Fix a DB error when merging contacts into the same household on contact... 
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=38c3ddcb0179b3f8176d5f74ebf200f0b67ad924;p=civicrm-core.git

dev/core#2272 Fix a DB error when merging contacts into the same household on contact export and only exporting selected contact fields
---

diff --git a/CRM/Export/BAO/Export.php b/CRM/Export/BAO/Export.php
index 575aa9af24..3f0f57a3fc 100644
--- a/CRM/Export/BAO/Export.php
+++ b/CRM/Export/BAO/Export.php
@@ -438,7 +438,11 @@ VALUES $sqlValueString
 
       $relationshipJoin = $relationshipClause = '';
       if (!$selectAll && $componentTable) {
-        $relationshipJoin = " INNER JOIN {$componentTable} ctTable ON ctTable.contact_id = {$contactA}";
+        $field = 'contact_id';
+        if ($componentTable === 'civicrm_contact') {
+          $field = 'id';
+        }
+        $relationshipJoin = " INNER JOIN {$componentTable} ctTable ON ctTable.$field = {$contactA}";
       }
       elseif (!empty($relIDs)) {
         $relID = implode(',', $relIDs);