Convert an array into a Map
6
I have a table with a column like
[{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}]
Which is of the format array<struct<key:string,value:array<string>>>
I want to convert the column into below format :
{"e":["253","203","204"],"st":["mi"],"k2":["1","2"]}
which is of the type map<string,array<string>>
I have tried exploding the array but that does not work. Any ideas how I can do this in hive.
sql hadoop hive hiveql
edited Nov 12 '18 at 4:50
apandey846
8441019
asked Nov 7 '18 at 16:48
John Constantine
1417
add a comment |
6
I have a table with a column like
[{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}]
Which is of the format array<struct<key:string,value:array<string>>>
I want to convert the column into below format :
{"e":["253","203","204"],"st":["mi"],"k2":["1","2"]}
which is of the type map<string,array<string>>
I have tried exploding the array but that does not work. Any ideas how I can do this in hive.
sql hadoop hive hiveql
edited Nov 12 '18 at 4:50
apandey846
8441019
asked Nov 7 '18 at 16:48
John Constantine
1417
1
I think you will have to write the custom UDF for this. you you can use spark
– Gaurang Shah
Nov 7 '18 at 20:01
2
Your output json is invalid. Don't you think for Map<String,List<String>> should be represented by {"e":["253","203","204"],"st":["mi"],"k2":["1","2"]} .
– apandey846
Nov 11 '18 at 19:59
add a comment |
6
6
6
1
I have a table with a column like
[{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}]
Which is of the format array<struct<key:string,value:array<string>>>
I want to convert the column into below format :
{"e":["253","203","204"],"st":["mi"],"k2":["1","2"]}
which is of the type map<string,array<string>>
I have tried exploding the array but that does not work. Any ideas how I can do this in hive.
sql hadoop hive hiveql
edited Nov 12 '18 at 4:50
apandey846
8441019
asked Nov 7 '18 at 16:48
John Constantine
1417
I have a table with a column like
[{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}]
Which is of the format array<struct<key:string,value:array<string>>>
I want to convert the column into below format :
{"e":["253","203","204"],"st":["mi"],"k2":["1","2"]}
which is of the type map<string,array<string>>
I have tried exploding the array but that does not work. Any ideas how I can do this in hive.
sql hadoop hive hiveql
sql hadoop hive hiveql
edited Nov 12 '18 at 4:50
apandey846
8441019
asked Nov 7 '18 at 16:48
John Constantine
1417
edited Nov 12 '18 at 4:50
apandey846
8441019
asked Nov 7 '18 at 16:48
John Constantine
1417
edited Nov 12 '18 at 4:50
apandey846
8441019
edited Nov 12 '18 at 4:50
apandey846
8441019
edited Nov 12 '18 at 4:50
apandey846
8441019
8441019
asked Nov 7 '18 at 16:48
John Constantine
1417
asked Nov 7 '18 at 16:48
John Constantine
1417
asked Nov 7 '18 at 16:48
John Constantine
1417
1417
1
I think you will have to write the custom UDF for this. you you can use spark
– Gaurang Shah
Nov 7 '18 at 20:01
2
Your output json is invalid. Don't you think for Map<String,List<String>> should be represented by {"e":["253","203","204"],"st":["mi"],"k2":["1","2"]} .
– apandey846
Nov 11 '18 at 19:59
add a comment |
1
I think you will have to write the custom UDF for this. you you can use spark
– Gaurang Shah
Nov 7 '18 at 20:01
2
Your output json is invalid. Don't you think for Map<String,List<String>> should be represented by {"e":["253","203","204"],"st":["mi"],"k2":["1","2"]} .
– apandey846
Nov 11 '18 at 19:59
1
1
I think you will have to write the custom UDF for this. you you can use spark
– Gaurang Shah
Nov 7 '18 at 20:01
I think you will have to write the custom UDF for this. you you can use spark
– Gaurang Shah
Nov 7 '18 at 20:01
2
2
Your output json is invalid. Don't you think for Map<String,List<String>> should be represented by {"e":["253","203","204"],"st":["mi"],"k2":["1","2"]} .
– apandey846
Nov 11 '18 at 19:59
Your output json is invalid. Don't you think for Map<String,List<String>> should be represented by {"e":["253","203","204"],"st":["mi"],"k2":["1","2"]} .
– apandey846
Nov 11 '18 at 19:59
add a comment |
1 Answer
1
active
oldest
votes
0
var Array = [{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}];
var obj = {}
for(var i=0;i<Array.length;i++){
obj[Array[i].key] = Array[i].value
}
obj will be in the required format
answered Nov 18 '18 at 7:16
Habeeb Rahman
12
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53194093%2fconvert-an-array-into-a-map%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
var Array = [{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}];
var obj = {}
for(var i=0;i<Array.length;i++){
obj[Array[i].key] = Array[i].value
}
obj will be in the required format
answered Nov 18 '18 at 7:16
Habeeb Rahman
12
add a comment |
0
var Array = [{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}];
var obj = {}
for(var i=0;i<Array.length;i++){
obj[Array[i].key] = Array[i].value
}
obj will be in the required format
answered Nov 18 '18 at 7:16
Habeeb Rahman
12
add a comment |
0
0
0
var Array = [{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}];
var obj = {}
for(var i=0;i<Array.length;i++){
obj[Array[i].key] = Array[i].value
}
obj will be in the required format
answered Nov 18 '18 at 7:16
Habeeb Rahman
12
var Array = [{"key":"e","value":["253","203","204"]},{"key":"st","value":["mi"]},{"key":"k2","value":["1","2"]}];
var obj = {}
for(var i=0;i<Array.length;i++){
obj[Array[i].key] = Array[i].value
}
obj will be in the required format
answered Nov 18 '18 at 7:16
Habeeb Rahman
12
edited Nov 18 '18 at 7:29
answered Nov 18 '18 at 7:16
Habeeb Rahman
12
answered Nov 18 '18 at 7:16
Habeeb Rahman
12
answered Nov 18 '18 at 7:16
Habeeb Rahman
12
12
add a comment |
add a comment |
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53194093%2fconvert-an-array-into-a-map%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
I think you will have to write the custom UDF for this. you you can use spark
– Gaurang Shah
Nov 7 '18 at 20:01
2
Your output json is invalid. Don't you think for Map<String,List<String>> should be represented by {"e":["253","203","204"],"st":["mi"],"k2":["1","2"]} .
– apandey846
Nov 11 '18 at 19:59