Name Type Location Description
SelectQuery::addTag function core/includes/database/select.inc
EntityFieldQuery::addTag function core/modules/entity/entity.query.inc Adds a tag to the query.
SelectQueryExtender::addTag function core/includes/database/select.inc Adds a tag to a query.
QueryAlterableInterface::addTag function core/includes/database/query.inc Adds a tag to a query.