eim=# select array_upper ( choices ) from eim_columns;
ERROR: function array_upper(character varying[]) does not exist
提示: No function matches the given name and argument types. You may need to ad
d explicit type casts.
eim=# select array_lower ( choices ) from eim_columns;
ERROR: function array_lower(character varying[]) does not exist
提示: No function matches the given name and argument types. You may need to ad
d explicit type casts.作者: Aray_CN 时间: 2005-03-31 21:46 标题: 我怎么没有arry_upper,array_lower函数? select array_upper ( ARRAY[1,2,3] || ARRAY[[4,5,6],[7,8,9],[7,8,9],[7,8,9],[7,8,9] ] ,1 )