break
				}
			}
			r.Close()
			if err != io.EOF {
				t.Fatalf("Reading failed with %s, %s", err, file.Name())
			}
		})

		t.Run(file.Name()+"-close", func(t *testing.T) {
			f, err := os.Open(filepath.Join("testdata", file.Name()))
			if err != nil {
				t.Fatal(err)
			}
			r := NewPReader(f, &ReaderArgs{})
			r.Close()
			var record sql.Record
			for {
				record, err = r.Read(record)
				if err != nil {

				}
			}
			r.Close()
			if err != io.EOF {
				t.Fatalf("Reading failed with %s, %s", err, file.Name())
			}
		})

		t.Run(file.Name()+"-close", func(t *testing.T) {
			f, err := os.Open(filepath.Join("testdata", file.Name()))
			if err != nil {
				t.Fatal(err)
			}
			r := NewReader(f, &ReaderArgs{})
			r.Close()
			var record sql.Record
			for {
				record, err = r.Read(record)
				if err != nil {

package clause

// GroupBy group by clause
type GroupBy struct {
	Columns []Column
	Having  []Expression
}

// Name from clause name
func (groupBy GroupBy) Name() string {
	return "GROUP BY"
}

// Build build group by clause
func (groupBy GroupBy) Build(builder Builder) {
	for idx, column := range groupBy.Columns {
		if idx > 0 {
			builder.WriteByte(',')
		}

		builder.WriteQuoted(column)
	}

	<version>15.4.1-SNAPSHOT</version>
	<packaging>pom</packaging>
	<name>Fess Crawler Project</name>
	<description>Fess Crawler is Crawler Framework.</description>
	<url>https://github.com/codelibs/fess-crawler</url>
	<inceptionYear>2009</inceptionYear>
	<licenses>
		<license>
			<name>The Apache Software License, Version 2.0</name>
			<url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>

                },
                "UserForm": {
                    "properties": {
                        "name": {"type": "string", "title": "Name"},
                        "email": {"type": "string", "title": "Email"},
                    },
                    "type": "object",
                    "required": ["name", "email"],
                    "title": "UserForm",
                },
                "ValidationError": {

        /**
         * The name ID SP name qualifier of the user.
         */
        protected String nameidSPNameQualifier;

        /**
         * Constructor.
         * @param nameId The name ID.
         * @param sessionIndex The session index.
         * @param nameIdFormat The name ID format.
         * @param nameidNameQualifier The name ID name qualifier.

<component name="ProjectRunConfigurationManager">
  <configuration default="false" name="Not Slow" type="JUnit" factoryName="JUnit" singleton="false">
    <useClassPathOnly />
    <option name="MAIN_CLASS_NAME" value="" />
    <option name="METHOD_NAME" value="" />
    <option name="TEST_OBJECT" value="tags" />
    <option name="VM_PARAMETERS" value="-ea -Djunit.jupiter.extensions.autodetection.enabled=true" />
    <option name="PARAMETERS" value="" />

apiVersion: {{ template "minio.networkPolicy.apiVersion" . }}
metadata:
  name: {{ template "minio.fullname" . }}
  labels:
    app: {{ template "minio.name" . }}
    chart: {{ template "minio.chart" . }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
spec:
  podSelector:
    matchLabels:
      app: {{ template "minio.name" . }}
      release: {{ .Release.Name }}
  ingress:
    - ports:

	<packaging>jar</packaging>
	<name>fess-suggest</name>
	<url>https://fess.codelibs.org/</url>
	<inceptionYear>2009</inceptionYear>
	<licenses>
		<license>
			<name>The Apache Software License, Version 2.0</name>
			<url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
			<distribution>repo</distribution>
		</license>
	</licenses>
	<organization>
		<name>CodeLibs</name>
		<url>https://fess.codelibs.org/</url>

2. By using a `with` block, we make sure that the file-like object is closed after the generator function is done. So, after it finishes sending the response.
3. This `yield from` tells the function to iterate over that thing named `file_like`. And then, for each part iterated, yield that part as coming from this generator function (`iterfile`).

    So, it is a generator function that transfers the "generating" work to something else internally.