How to create seperate tables from postgreSQL JSON column value
Following is the table format :
CREATE TABLE records
(
id text,
record json
)
For every record column of the row , JSON value will be: (this is just a snapshot of an entire structure)
{
"Trial": {
"primary_id": "xxxxx",
"key1": "aaaaaaaa (BAL-8557) aaaaaaaaaaaaaaaaaa",
"key2": "aaaaaaaaaaaaa , aaaaaaaaaaaaaaaaaaa",
"key3": "Yes",
"key4": "No",
"key5": {
"key5k": [{
"@type": "ABC",
"$": "ABC121 "
},
{
"@type": "ABC",
"$": "ABC12133 "
}
]
},
"Indications": {
"Indication": [{
"indication_id": "1308",
"$": "aaaaaa"
},
{
"indicationid": "1309",
"$": "bbbbbb"
}
]
}
}
}
there are around 300K rows in the table currently
I want to develop an utility that will read all rows find keys which have nested JSON.
Based on the nested JSON structure I want to create a separate table
E.g. from above JSON table , Indication Table will be
----------------------------------------
primary_id | indication_id | value
----------------------------------------
xxxxx | 1308 | aaaaaa
----------------------------------------
xxxxx | 1309 | bbbbbb
How can I develop this utility ?
Should this be handled by PostgreSQL functions or using Python + Spark ?
If someone could share any link for this solution or something similar that will be helpful , thanks
python json postgresql pyspark
asked Nov 15 '18 at 3:58
K.PilK.Pil
10219
add a comment |
Following is the table format :
CREATE TABLE records
(
id text,
record json
)
For every record column of the row , JSON value will be: (this is just a snapshot of an entire structure)
{
"Trial": {
"primary_id": "xxxxx",
"key1": "aaaaaaaa (BAL-8557) aaaaaaaaaaaaaaaaaa",
"key2": "aaaaaaaaaaaaa , aaaaaaaaaaaaaaaaaaa",
"key3": "Yes",
"key4": "No",
"key5": {
"key5k": [{
"@type": "ABC",
"$": "ABC121 "
},
{
"@type": "ABC",
"$": "ABC12133 "
}
]
},
"Indications": {
"Indication": [{
"indication_id": "1308",
"$": "aaaaaa"
},
{
"indicationid": "1309",
"$": "bbbbbb"
}
]
}
}
}
there are around 300K rows in the table currently
I want to develop an utility that will read all rows find keys which have nested JSON.
Based on the nested JSON structure I want to create a separate table
E.g. from above JSON table , Indication Table will be
----------------------------------------
primary_id | indication_id | value
----------------------------------------
xxxxx | 1308 | aaaaaa
----------------------------------------
xxxxx | 1309 | bbbbbb
How can I develop this utility ?
Should this be handled by PostgreSQL functions or using Python + Spark ?
If someone could share any link for this solution or something similar that will be helpful , thanks
python json postgresql pyspark
asked Nov 15 '18 at 3:58
K.PilK.Pil
10219
So what have you tried so far? Where are you stuck?
– Richard Huxton
Nov 15 '18 at 9:10
add a comment |
Following is the table format :
CREATE TABLE records
(
id text,
record json
)
For every record column of the row , JSON value will be: (this is just a snapshot of an entire structure)
{
"Trial": {
"primary_id": "xxxxx",
"key1": "aaaaaaaa (BAL-8557) aaaaaaaaaaaaaaaaaa",
"key2": "aaaaaaaaaaaaa , aaaaaaaaaaaaaaaaaaa",
"key3": "Yes",
"key4": "No",
"key5": {
"key5k": [{
"@type": "ABC",
"$": "ABC121 "
},
{
"@type": "ABC",
"$": "ABC12133 "
}
]
},
"Indications": {
"Indication": [{
"indication_id": "1308",
"$": "aaaaaa"
},
{
"indicationid": "1309",
"$": "bbbbbb"
}
]
}
}
}
there are around 300K rows in the table currently
I want to develop an utility that will read all rows find keys which have nested JSON.
Based on the nested JSON structure I want to create a separate table
E.g. from above JSON table , Indication Table will be
----------------------------------------
primary_id | indication_id | value
----------------------------------------
xxxxx | 1308 | aaaaaa
----------------------------------------
xxxxx | 1309 | bbbbbb
How can I develop this utility ?
Should this be handled by PostgreSQL functions or using Python + Spark ?
If someone could share any link for this solution or something similar that will be helpful , thanks
python json postgresql pyspark
asked Nov 15 '18 at 3:58
K.PilK.Pil
10219
Following is the table format :
CREATE TABLE records
(
id text,
record json
)
For every record column of the row , JSON value will be: (this is just a snapshot of an entire structure)
{
"Trial": {
"primary_id": "xxxxx",
"key1": "aaaaaaaa (BAL-8557) aaaaaaaaaaaaaaaaaa",
"key2": "aaaaaaaaaaaaa , aaaaaaaaaaaaaaaaaaa",
"key3": "Yes",
"key4": "No",
"key5": {
"key5k": [{
"@type": "ABC",
"$": "ABC121 "
},
{
"@type": "ABC",
"$": "ABC12133 "
}
]
},
"Indications": {
"Indication": [{
"indication_id": "1308",
"$": "aaaaaa"
},
{
"indicationid": "1309",
"$": "bbbbbb"
}
]
}
}
}
there are around 300K rows in the table currently
I want to develop an utility that will read all rows find keys which have nested JSON.
Based on the nested JSON structure I want to create a separate table
E.g. from above JSON table , Indication Table will be
----------------------------------------
primary_id | indication_id | value
----------------------------------------
xxxxx | 1308 | aaaaaa
----------------------------------------
xxxxx | 1309 | bbbbbb
How can I develop this utility ?
Should this be handled by PostgreSQL functions or using Python + Spark ?
If someone could share any link for this solution or something similar that will be helpful , thanks
python json postgresql pyspark
python json postgresql pyspark
asked Nov 15 '18 at 3:58
K.PilK.Pil
10219
asked Nov 15 '18 at 3:58
K.PilK.Pil
10219
asked Nov 15 '18 at 3:58
K.PilK.Pil
10219
asked Nov 15 '18 at 3:58
K.PilK.Pil
10219
asked Nov 15 '18 at 3:58
K.PilK.Pil
10219
10219
So what have you tried so far? Where are you stuck?
– Richard Huxton
Nov 15 '18 at 9:10
add a comment |
So what have you tried so far? Where are you stuck?
– Richard Huxton
Nov 15 '18 at 9:10
So what have you tried so far? Where are you stuck?
– Richard Huxton
Nov 15 '18 at 9:10
So what have you tried so far? Where are you stuck?
– Richard Huxton
Nov 15 '18 at 9:10
add a comment |
0
active
oldest
votes
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
});
}
});
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%2f53312232%2fhow-to-create-seperate-tables-from-postgresql-json-column-value%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
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.
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%2f53312232%2fhow-to-create-seperate-tables-from-postgresql-json-column-value%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
So what have you tried so far? Where are you stuck?
– Richard Huxton
Nov 15 '18 at 9:10