Smile\ElasticsuiteCatalogRule\Model\Rule\Condition\Product\QueryBuilder::getSearchFieldName PHP Method

    private function getSearchFieldName(ProductCondition $productCondition)
    {
        $attributeName = $productCondition->getAttribute();
        $field = $this->attributeList->getField($attributeName);
        $analyzer = FieldInterface::ANALYZER_UNTOUCHED;
        if ($productCondition->getInputType() === "string") {
            $analyzer = FieldInterface::ANALYZER_STANDARD;
        }
        return $field->getMappingProperty($analyzer);
    }