arrays - 将数据复制(导入)到 PostgreSQL 数组列中

Question

应如何格式化(CSV？)文本文件以便将其导入(使用 COPY？)到 PostgreSQL (8.4) 表中的数组列中？

给定表testarray:

 Column  |          Type           |
---------+-------------------------|
 rundate | date                    | 
 runtype | integer                 | 
 raw     | double precision[]      | 
 labels  | character varying(16)[] | 
 results | double precision[]      | 
 outcome | character varying(8)[]  | 

和

COPY testarray from '/tmp/import.txt' CSV

import.txt 的以下内容均无效:

2010/06/22,88,{{1,2},{3,4}},{{1,2},{3,4}},{{1,2},{3,4}},{{1,2},{3,4}}
2010/06/22,88,1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4
2010/06/22,88,'{{1,2},{3,4}}','{{1,2},{3,4}}','{{1,2},{3,4}}','{{1,2},{3,4}}'
2010/06/22,88,'1,2,3,4','1,2,3,4','1,2,3,4','1,2,3,4'

Answer 1

COPY testarray from '/tmp/import.txt' CSV

2010-06-22,88,"{{1,2},{3,4}}","{{1,2},{3,4}}","{{1,2},{3,4}}","{{1,2},{3,4}}"