1

表变更集的 SQL 是：

CREATE TABLE changesets
    (
      changeset_id bigint NOT NULL,
      user_id integer NOT NULL,
      created_at timestamp with time zone,
      closed_at timestamp with time zone,
      open boolean,
      min_lat double precision,
      min_lon double precision,
      max_lat double precision,
      max_lon double precision,
      CONSTRAINT pk_changeset PRIMARY KEY (changeset_id )
    )
    WITH (
      OIDS=FALSE
    );
    ALTER TABLE changesets
      OWNER TO postgres;

我试图运行查询：

INSERT INTO changesets (changeset_id,user_id,open,min_lat,min_lon,max_lat,max_lon,created_at,closed_at) 
SELECT 16465146,1315463,false,27.6785105,85.3408257,27.6849711,85.350291,2013-06-08T06:29:51Z,2013-06-08T06:32:52Z 
WHERE NOT EXISTS (SELECT * FROM changesets WHERE changeset_id=16465146);

但它会抛出错误：

ERROR:  syntax error at or near ":"
LINE 1: ...5105,85.3408257,27.6849711,85.350291,2013-06-08T06:29:51Z,20...
                                                             ^

********** Error **********

ERROR: syntax error at or near ":"
SQL state: 42601
Character: 191

如果我从 SQL 中删除 created_at,closed_at 目标列和它们的时间戳值 2013-06-08T06:29:51Z,2013-06-08T06:32:52Z ，则 sql 将成功执行。

这个 SQL 有什么问题？时间戳的 :,- 有问题吗？

谢谢，

4

1 回答 1

2

将时间戳作为字符串文字传递
请参阅文档

尝试此插入：

INSERT INTO changesets 
(changeset_id,user_id,open,min_lat,min_lon,max_lat,max_lon,created_at,closed_at) 
SELECT 16465146,1315463,false,27.6785105,85.3408257,27.6849711,85.350291,
      '2013-06-08T06:29:51Z','2013-06-08T06:32:52Z' 
WHERE NOT EXISTS (SELECT * FROM changesets WHERE changeset_id=16465146);

甚至更好地给他们明确的类型，比如这里：

INSERT INTO changesets (changeset_id,user_id,open,min_lat,min_lon,max_lat,max_lon,created_at,closed_at) 
SELECT 16465146,1315463,false,27.6785105,85.3408257,27.6849711,85.350291,
TIMESTAMP WITH TIME ZONE '2013-06-08T06:29:51Z', 
TIMESTAMP WITH TIME ZONE '2013-06-08T06:32:52Z' 
WHERE NOT EXISTS (SELECT * FROM changesets WHERE changeset_id=16465146);
于 2013-07-28T10:42:23.140 回答