将数据复制（导入）到PostgreSQL数组列

Question

应该如何格式化（CSV？）文本文件，以便可以将它导入（与COPY？）到PostgreSQL（8.4）表的数组列中？

所给出的表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 

既不import.txt以下工作内容：

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}}"