ruche str_to_map

Question

j'ai données d'échantillon comme ci-dessous Id (string), delimProperties (string)

== ==============

1, foo.prop = valeur foo | bar.prop = valeur bar
2, foo2.prop = valeur foo2 | bar2.prop = valeur bar2

Voici mon DML
1)

CREATE TABLE IF NOT EXISTS test_data(Id STRING, delimProperties STRING)<br> 
row format delimited <br> 
fields terminated by ","<br> 
COLLECTION ITEMS TERMINATED BY '|' <br> 
map keys terminated by '='<br> 
STORED AS textfile;<br> 

2)

CREATE TABLE IF NOT EXISTS final_data(Id STRING, delimProperties STRING) 
row format delimited 
fields terminated by "," 
COLLECTION ITEMS TERMINATED BY '|' 
map keys terminated by '='; 

3)

alter table final_data add columns (properties map<string,string>); 

4)

load data local inpath 'file:/c:/data/sample.csv' into table test_data; 

5)

insert into table final_data select Id, 
str_to_map(delimproperties,'|','=') 
from test_data; 

6)

Select * from final_data limit 1; 

1 {"": "", "": null, ".": Null}

Une idée de ce que je dois faire mal?

Answer 1

Vous pouvez essayer ceci:

str_to_map(delimproperties,'[|]','=')