Type:

public Tables::isFieldCaseSensitive($field_name)

Field table array, key is table name, value is alias. This array contains one entry per field table. Type:

public Tables::addField($field, $type, $langcode)

public Tables::__construct(SelectInterface $sql_query)

List of case sensitive fields. Type:

protected Tables::getTableMapping($table, $entity_type_id)

Adds tables and fields to the SQL entity query. Hierarchy class \Drupal\Core\Entity\Query\Sql\

protected Tables::addJoin($type, $table, $join_condition, $langcode, $delta

Entity table array, key is table name, value is alias. This array contains at most two entries: one for the data, one for the properties.