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我有一个seq_data如下所示的 postgres 表：

data_id | machine |     run      | cell  | run_start  | library |                   expected_dir                    | transferred | failed | cloud | csv_uploaded |         last_updated          
---------+---------+--------------+-------+------------+---------+---------------------------------------------------+-------------+--------+-------+--------------+-------------------------------
       1 | rsii_1  | RUN001     | B01_1 | 2020-02-05 | N/A      |                some/dir                            | t           | f      | t     | t            | 2020-02-07 11:24:17.279879+00
       2 | rsii_1  | RUN001     | C01_1 | 2020-02-05 | N/A      |                some/dir                            | t           | f      | t     | t            | 2020-02-07 11:24:17.279879+00

我想做的是更新列库。

如果我做：

data_monitor=> UPDATE seq_data SET failed=TRUE WHERE data_id=2;
UPDATE 1

它有效，我得到：

data_id | machine |     run      | cell  | run_start  | library |                   expected_dir                    | transferred | failed | cloud | csv_uploaded |         last_updated          
---------+---------+--------------+-------+------------+---------+---------------------------------------------------+-------------+--------+-------+--------------+-------------------------------
       1 | rsii_1  | RUN001     | B01_1 | 2020-02-05 | N/A      |                some/dir                            | t           | f      | t     | t            | 2020-02-07 11:24:17.279879+00
       2 | rsii_1  | RUN001     | C01_1 | 2020-02-05 | N/A      |                some/dir                            | t           | t      | t     | t            | 2020-02-07 11:24:17.279879+00

但是当我这样做时：

data_monitor=> UPDATE seq_data SET library=this_library WHERE data_id=1;
ERROR:  column "this_library" does not exist
LINE 1: UPDATE seq_data SET library=this_library WHERE data_id=1;

我真正想做的是library基于run,cell和machine

data_monitor=> UPDATE seq_data SET library=this_library WHERE machine=rsii_1 and run=RUN001 and cell=B01_1;
ERROR:  column "rsii_1" does not exist
LINE 1: ...E seq_data SET library=this_library WHERE machine=rsii_1 and...

为什么会这样？

似乎在UPDATE seq_data SET library=this_library WHERE machine=rsii_1 and run=RUN001 and cell=B01_1;跳过列时感到困惑library，并认为列名实际上是值，this_library

版本：postgresql-11

这就是我创建表格的方式：

CREATE TABLE seq_data (
    data_id serial NOT NULL,
    machine varchar(10) NOT NULL,
    run varchar(30) NOT NULL,
    cell varchar(10) NOT NULL,
    run_start date NOT NULL,
    library varchar(25) NOT NULL DEFAULT 'N/A',
    expected_dir varchar(100),
    transferred boolean NOT NULL DEFAULT 'f',
    failed boolean NOT NULL DEFAULT 'f',
    cloud boolean NOT NULL DEFAULT 'f',
    csv_uploaded boolean NOT NULL DEFAULT 'f',
    last_updated timestamp with time zone DEFAULT now(),
    PRIMARY KEY (data_id),
    CONSTRAINT data_id UNIQUE (machine, run, cell)
);

更新

在 Python3.7 中使用 psycopg2

dbconn.query(
'''UPDATE seq_data
   SET library=%s
   WHERE run=%s and machine=%s and cell=%s;''',
   (sample_name[1], run, machine, sample_name[0],), commit=True)

我将如何在 python 中将这些引号括起来？所有变量都已经是字符串。

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