presto-elasticsearch/src/main/java/io/prestosql/elasticsearch/ElasticsearchConfig.java/ElasticsearchConfig/setDefaultSchema
class ElasticsearchConfig:    @Config("elasticsearch.default-schema-name")
    @ConfigDescription("Default schema name to use")
    public ElasticsearchConfig setDefaultSchema(String defaultSchema)
    {
        this.defaultSchema = defaultSchema;
        return this;
    }