CRM-19222 Export: temp table field length at least 255 for strings

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* CRM-19222: Data too long on export including custom field
  https://issues.civicrm.org/jira/browse/CRM-19222

diff --git a/CRM/Export/BAO/Export.php b/CRM/Export/BAO/Export.php
index 6077d1a83d594f5fcc71f13fb83c964996addd69..9e762f92ed9f83b3a441d1a9f3c97e13e4b60239 100644 (file)
--- a/CRM/Export/BAO/Export.php
+++ b/CRM/Export/BAO/Export.php
@@ -1378,7 +1378,8 @@ INSERT INTO {$componentTable} SELECT distinct gc.contact_id FROM civicrm_group_c
 
             switch ($query->_fields[$field]['data_type']) {
               case 'String':
-                $length = empty($query->_fields[$field]['text_length']) ? 255 : $query->_fields[$field]['text_length'];
+                // May be option labels, which could be up to 512 characters
+                $length = max(512, CRM_Utils_Array::value('text_length', $query->_fields[$field]));
                 $sqlColumns[$fieldName] = "$fieldName varchar($length)";
                 break;