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commit d6967dd7301e82fa102f756e16635dabce1c550d Author: fengli <[email protected]> AuthorDate: Thu Jul 20 20:29:45 2023 +0800 [FLINK-32610][json] Add document for Json option decode.json-parser.enabled --- docs/content.zh/docs/connectors/table/formats/json.md | 7 +++++++ docs/content/docs/connectors/table/formats/json.md | 8 ++++++++ 2 files changed, 15 insertions(+) diff --git a/docs/content.zh/docs/connectors/table/formats/json.md b/docs/content.zh/docs/connectors/table/formats/json.md index f7e3040de1f..f1acdd7a001 100644 --- a/docs/content.zh/docs/connectors/table/formats/json.md +++ b/docs/content.zh/docs/connectors/table/formats/json.md @@ -135,6 +135,13 @@ Format 参数 <td>Boolean</td> <td>将所有 DECIMAL 类型的数据保持原状，不使用科学计数法表示。例：<code>0.000000027</code> 默认会表示为 <code>2.7E-8</code>。当此选项设为 true 时，则会表示为 <code>0.000000027</code>。</td> </tr> + <tr> + <td><h5>decode.json-parser.enabled</h5></td> + <td>选填</td> + <td style="word-wrap: break-word;">true</td> + <td>Boolean</td> + <td><code>JsonParser</code> 是 Jackson 提供的流式读取 JSON 数据的 API。与 <code>JsonNode</code> 方式相比，这种方式读取速度更快，内存消耗更少。同时，<code>JsonParser</code> 在读取数据时还支持嵌套字段的投影下推。该参数默认启用。如果遇到任何不兼容性问题，可以禁用并回退到 <code>JsonNode</code> 方式。</td> + </tr> </tbody> </table> diff --git a/docs/content/docs/connectors/table/formats/json.md b/docs/content/docs/connectors/table/formats/json.md index d9c5e5cfa41..52345a42ea1 100644 --- a/docs/content/docs/connectors/table/formats/json.md +++ b/docs/content/docs/connectors/table/formats/json.md @@ -146,6 +146,14 @@ Format Options <td>Boolean</td> <td>Encode all decimals as plain numbers instead of possible scientific notations. By default, decimals may be written using scientific notation. For example, <code>0.000000027</code> is encoded as <code>2.7E-8</code> by default, and will be written as <code>0.000000027</code> if set this option to true.</td> </tr> + <tr> + <td><h5>decode.json-parser.enabled</h5></td> + <td>optional</td> + <td></td> + <td style="word-wrap: break-word;">true</td> + <td>Boolean</td> + <td>Whether to use the Jackson <code>JsonParser</code> to decode json. <code>JsonParser</code> is the Jackson JSON streaming API to read JSON data. This is much faster and consumes less memory compared to the previous <code>JsonNode</code> approach. Meanwhile, <code>JsonParser</code> also supports nested projection pushdown when reading data. This option is enabled by default. You can disable and fallback to the previous <code>JsonNode</code> approach when encountering any incompat [...] + </tr> </tbody> </table>
