函数:convert_from(string bytea, src_encoding name) 说明:Convert string to the database encoding. The original encoding is specified by src_encoding. The string must be valid in this encoding. 转换字符串编码,自己要指定源编码,目标编码默认为数据库指定编码, 例子:convert_from('text_in_utf8', '...
函数:convert_from(string bytea, src_encoding name)说明:Convert string to the database encoding. The original encoding is specified by src_encoding. The string must be valid in this encoding. 转换字符串编码,自己要指定源编码,目标编码默认为数据库指定编码, 例子:select convert_from('\316\322\312...
Convert roaringbitmap to integer array rb_to_array(roaringbitmap('{1,2,3}')) {1,2,3} rb_iterate roaringbitmap SET of integer Return set of integer from a roaringbitmap data. SELECT rb_iterate (rb_build('{1,2,3}')) 123
postgres=# select extract(month from interval ' 7 months 5 days' ) ; date_part --- 7 (1 row) postgres=# select extract(month from interval ' 5 days' ) ; date_part --- 0 (1 row) postgres=# select extract(month from interval ' 12 months 5 days' ) ; date_part --- 0 (1 r...
cur.execute("SELECT * FROM ai.openai_list_models(api_key=>%s) ORDER BY created DESC", (OPENAI_API_KEY,))records = cur.fetchall()print(records)如果您的设置正常工作，这将返回可用 OpenAI 模型的列表。步骤3：加载数据 本教程将使用一个酒店评论数据集。每条评论包括评论全文、物业类型、位置、评论者...
Convert roaringbitmap to integer array rb_to_array(roaringbitmap('{1,2,3}')) {1,2,3} rb_iterate roaringbitmap SET of integer Return set of integer from a roaringbitmap data. SELECT rb_iterate (rb_build('{1,2,3}')) 123
;}else{throw Exception("No file selected");}}Future<String>_readPDFandConvertToText()async{Filefile=File(_filepath!);List<int>bytes=await file.readAsBytes();final document=PdfDocument(inputBytes: Uint8List.fromList(bytes));String text=PdfTextExtractor(document).extractText();final localPath...
103 * Planning converts a Query tree into a Plan tree headed by a PlannedStmt 104 * node --- the Query structure is not used by the executor. 105 */106typedef struct Query107{108NodeTag type;109110CmdType commandType;/* select|insert|update|delete|utility */111112QuerySource querySource;...
# By default Ora2Pg will convert call to SYS_GUID() Oracle function # with a call to uuid_generate_v4() from uuid-ossp extension. You can # redefined it to use the gen_random_uuid() function from pgcrypto # extension by changing the function name below....
Convert roaringbitmap to integer array ``rb_to_array(roaringbitmap('{1,2,3}'))`` {1,2,3} rb_iterate roaringbitmap SET of integer Return set of integer from a roaringbitmap data. ``SELECT rb_iterate(rb_build('{1,2,3}'))`` 1 2 3 聚合函数列表 聚合函数名 输入 输出 描述 示例...