Issue #3352134 by drunken monkey: Fixed performance degradation with database backend in 1.29.

Search API 1.x, dev (xxxx-xx-xx):

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- #3352134 by drunken monkey: Fixed performance degradation with database

  backend in 1.29.

- #3263875 by Eduardo Morales Alberti, drunken monkey, GrumpySchlag: Fixed Behat

  integration.

- #3355677 by drunken monkey: Fixed incompatibility with PHP 7.3 in

    $condition_group = $query->getConditionGroup();

    $this->addLanguageConditions($condition_group, $query);

    // @todo #2877319 Maybe, like addLanguageConditions(), add a method here

    //   checking for the "search_api_location" option on the query and, if

    //   present, add new conditions based on the option(s) to the query.

    //   Or place the conditions directly on the query below this if block -

    //   in that case, you might need to remove any conditions on those fields

    //   from the query.

    if ($this->dbmsCompatibility instanceof LocationAwareDatabaseInterface) {

    if ($this->dbmsCompatibility instanceof LocationAwareDatabaseInterface

        && $query->getOption('search_api_location', [])) {

      $index_table = $this->getIndexDbInfo($query->getIndex())['index_table'];

      $index_table_alias = $this->getTableAlias(['table' => $index_table], $db_query);

      $this->dbmsCompatibility->addLocationFilter($index_table_alias, $query, $db_query);

          }

          elseif (($field_info['type'] ?? '') === 'location'

              && $this->dbmsCompatibility instanceof LocationAwareDatabaseInterface) {

            // @todo #2877319 Place filter on query, possibly also taking the

            //   options into account. Or, if this is handled somewhere else,

            //   simply ignore this condition.

            $this->dbmsCompatibility->addLocationDbCondition($field_info['column'], $value, $operator, $query, $db_query);

          }

          elseif ($not_between) {