I have to create a view on a Drupal 7 site which will have 6/8 node fields. There will be some logic for which I will have to rewrite results as well as create a views-view-field-XX.tpl.php template file.
Thus, instead of using fields, using Content > Teaser and writing/reusing the logic in the node--CONTENT-TYPE.tpl.php template file looks more tempting to me. It also seems to make my work easier.
I am worried that using Content > Teaser will impact the performance because, with fields, only the required fields will be loaded, whereas, with Content > Teaser, the complete node will be loaded.
If I have set only 2-4 fields for the Teaser mode in Manage display, will the view still load the complete node?
In the case the view loads the complete node, does it harm performance? Views Row Style - Fields vs. Teaser? and Fields vs. Teaser/Node view say it does impact performance, but they apply to Drupal 6.