### 3. Example

As an example, let us take a gzip compressed CSV file. Without S3 Select, we would need to download, decompress and process the entire CSV to get the data you needed. With Select API, can use a simple SQL expression to return only the data from the CSV you’re interested in, instead of retrieving the entire object. Following Python example shows how to retrieve the first column `Location` from an object containing data in CSV format.

            - 6.8
          excluded-regions:
            - ^docs/.*
          black-list-labels:
            - '>test-mute'
            - ':Delivery/Packaging'
    axes:
      - axis:
          type: label-expression
          name: os
          values:
            - "windows-2019"
      - axis:
          type: user-defined
          name: PACKAGING_TASK
          values:
            - 'default-windows-archive'

            - ^docs/.*
          white-list-labels:
            - ':Delivery/Packaging'
          black-list-labels:
            - '>test-mute'
    axes:
      - axis:
          type: label-expression
          name: os
          values:
            - "windows-2012-r2"
            - "windows-2016"
            - "windows-2019"
      - axis:
          type: user-defined
          name: PACKAGING_TASK

    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o dbfluteBeansPackageName (NotRequired - Default null)
    #  The default attribute expression of DBFlute DI configuration for Spring and Lucy.
    #
    # @SpringOnly
    #; dbfluteBeansDefaultAttribute = default-lazy-init="true"
    # - - - - - - - - - -/

  @get:JvmName("size")
  val size: Int
    get() = encodedNames.size

  @JvmName("-deprecated_size")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "size"),
    level = DeprecationLevel.ERROR,
  )
  fun size(): Int = size

  fun encodedName(index: Int): String = encodedNames[index]

    /**
     * Prefix used to identify regex patterns in related content terms.
     * When a term starts with this prefix, it is treated as a regular expression
     * pattern rather than an exact match term.
     */
    protected String regexPrefix = "regex:";

    /**
     * Placeholder string used in regex-based related content templates.

        }
        return StringUtil.EMPTY;
    }

    /**
     * Replaces all occurrences of a regular expression pattern in the input string.
     *
     * @param input the input object to process
     * @param regex the regular expression pattern to match
     * @param replacement the replacement string
     * @return string with all matches replaced, or empty string if input is null
     */

        SimpleProblemCollector result = validateRaw("raw-model/repository-with-expression.xml");
        assertViolations(result, 0, 0, 0);
    }

    @Test
    void repositoryWithBasedirExpression() throws Exception {
        SimpleProblemCollector result = validateRaw("raw-model/repository-with-basedir-expression.xml");
        assertViolations(result, 0, 0, 0);
    }

    @Test

   * this method returns {@code defaultValue} for all inputs that do not belong to the map's key
   * set. See also {@link #forMap(Map)}, which throws an exception in this case.
   *
   * <p>Prefer to write the lambda expression {@code k -> map.getOrDefault(k, defaultValue)}
   * instead. Note that it is not serializable unless you explicitly make it {@link Serializable},

// https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectSELECTContent.html.
type S3Select struct {
	XMLName        xml.Name            `xml:"SelectRequest"`
	Expression     string              `xml:"Expression"`
	ExpressionType string              `xml:"ExpressionType"`
	Input          InputSerialization  `xml:"InputSerialization"`
	Output         OutputSerialization `xml:"OutputSerialization"`