{
    "data": {
        "question": {
            "questionId": "1852",
            "questionFrontendId": "1709",
            "categoryTitle": "Database",
            "boundTopicId": 544992,
            "title": "Biggest Window Between Visits",
            "titleSlug": "biggest-window-between-visits",
            "content": null,
            "translatedTitle": "访问日期之间最大的空档期",
            "translatedContent": null,
            "isPaidOnly": true,
            "difficulty": "Medium",
            "likes": 40,
            "dislikes": 0,
            "isLiked": null,
            "similarQuestions": "[]",
            "contributors": [],
            "langToValidPlayground": null,
            "topicTags": [
                {
                    "name": "Database",
                    "slug": "database",
                    "translatedName": "数据库",
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": null,
            "stats": "{\"totalAccepted\": \"7.1K\", \"totalSubmission\": \"10.5K\", \"totalAcceptedRaw\": 7062, \"totalSubmissionRaw\": 10516, \"acRate\": \"67.2%\"}",
            "hints": [],
            "solution": null,
            "status": null,
            "sampleTestCase": "{\"headers\":{\"UserVisits\":[\"user_id\",\"visit_date\"]},\"rows\":{\"UserVisits\":[[\"1\",\"2020-11-28\"],[\"1\",\"2020-10-20\"],[\"1\",\"2020-12-3\"],[\"2\",\"2020-10-5\"],[\"2\",\"2020-12-9\"],[\"3\",\"2020-11-11\"]]}}",
            "metaData": "{\"mysql\":[\"Create table If Not Exists UserVisits(user_id int, visit_date date)\"],\"mssql\":[\"Create table UserVisits(user_id int, visit_date date)\"],\"oraclesql\":[\"Create table UserVisits(user_id int, visit_date date)\",\"ALTER SESSION SET nls_date_format='YYYY-MM-DD'\"],\"database\":true,\"name\":\"biggest_window\",\"pythondata\":[\"UserVisits = pd.DataFrame([], columns=['user_id', 'visit_date']).astype({'user_id':'Int64', 'visit_date':'datetime64[ns]'})\"],\"postgresql\":[\"\\nCreate table If Not Exists UserVisits(user_id int, visit_date date)\"],\"database_schema\":{\"UserVisits\":{\"user_id\":\"INT\",\"visit_date\":\"DATE\"}}}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [
                "Create table If Not Exists UserVisits(user_id int, visit_date date)",
                "Truncate table UserVisits",
                "insert into UserVisits (user_id, visit_date) values ('1', '2020-11-28')",
                "insert into UserVisits (user_id, visit_date) values ('1', '2020-10-20')",
                "insert into UserVisits (user_id, visit_date) values ('1', '2020-12-3')",
                "insert into UserVisits (user_id, visit_date) values ('2', '2020-10-5')",
                "insert into UserVisits (user_id, visit_date) values ('2', '2020-12-9')",
                "insert into UserVisits (user_id, visit_date) values ('3', '2020-11-11')"
            ],
            "enableRunCode": true,
            "envInfo": "{\"mysql\":[\"MySQL\",\"<p>\\u7248\\u672c\\uff1a<code>MySQL 8.0<\\/code><\\/p>\"],\"mssql\":[\"MS SQL Server\",\"<p>mssql server 2019.<\\/p>\"],\"oraclesql\":[\"Oracle\",\"<p>Oracle Sql 11.2.<\\/p>\"],\"pythondata\":[\"Pandas\",\"<p>Python 3.10 with Pandas 2.0.2 and NumPy 1.25.0<\\/p>\"],\"postgresql\":[\"PostgreSQL\",\"<p>PostgreSQL 16<\\/p>\"]}",
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            "isSubscribed": false,
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            "editorType": "CKEDITOR",
            "ugcQuestionId": null,
            "style": "LEETCODE",
            "exampleTestcases": "{\"headers\":{\"UserVisits\":[\"user_id\",\"visit_date\"]},\"rows\":{\"UserVisits\":[[\"1\",\"2020-11-28\"],[\"1\",\"2020-10-20\"],[\"1\",\"2020-12-3\"],[\"2\",\"2020-10-5\"],[\"2\",\"2020-12-9\"],[\"3\",\"2020-11-11\"]]}}",
            "__typename": "QuestionNode"
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}