Type:
Task
Priority:
Major
Resolution:
Unresolved
Fix Version/s:
None
The SQL standard defines the following types for the column definition of a JSON_TABLE clause:
<JSON table column definition> ::=
<JSON table ordinality column definition>
| <JSON table regular column definition>
| <JSON table formatted column definition>
| <JSON table nested columns>
All types except the formatted ones are already implemented in 10.6.0 and the only one left out is formatted columns:
<JSON table formatted column definition> ::=
<column name> <data type>
FORMAT <JSON representation>
[ PATH <JSON table column path specification> ]
[ <JSON table formatted column wrapper behavior> WRAPPER ]
[ <JSON table formatted column quotes behavior> QUOTES
[ ON SCALAR STRING ] ]
[ <JSON table formatted column empty behavior> ON EMPTY ]
[ <JSON table formatted column error behavior> ON ERROR ]
<JSON representation> ::=
JSON [ ENCODING { UTF8 | UTF16 | UTF32 } ]
| <implementation-defined JSON representation option>
The standardized option is FORMAT JSON; implementations may also
support syntax such as FORMAT AVRO or FORMAT BSON.
Adding at least the minimal implementation of the FORMAT JSON clause would already help greatly when using JSON_TABLE with JSON objects with deeply nested JSON values.
If implemented, I would expect it to behave as follows:
SET @json= '
[
{"name":"Jeans", "sizes": [32, 34, 36]},
{"name":"T-Shirt", "sizes":["Medium", "Large"]},
{"name":"Cellphone"}
]' ;
SELECT * FROM JSON_TABLE(@json, '$[*]' COLUMNS(
name VARCHAR (10) PATH '$.name' ,
sizes VARCHAR (100) FORMAT JSON PATH '$.sizes'
)) AS jt;
The expected result:
+-----------+---------------------+
| name | sizes |
+-----------+---------------------+
| Jeans | [32, 34, 36] |
| T-Shirt | ["Medium", "Large"] |
| Cellphone | NULL |
+-----------+---------------------+
Currently this can be emulated using JSON_QUERY and an ordinality column but the syntax is quite uncomfortable to use:
SELECT jt. name , JSON_QUERY(@json, CONCAT( '$[' , jt.id - 1, '].sizes' )) AS sizes FROM JSON_TABLE(@json, "$[*]" COLUMNS(
id FOR ORDINALITY,
name JSON PATH "$.name"
)) AS jt;
relates to
MDEV-17399
Add support for JSON_TABLE
Closed
{"report":{"fcp":954.3000001907349,"ttfb":309.4000005722046,"pageVisibility":"visible","entityId":99776,"key":"jira.project.issue.view-issue","isInitial":true,"threshold":1000,"elementTimings":{},"userDeviceMemory":8,"userDeviceProcessors":64,"apdex":0.5,"journeyId":"d24674ea-b110-47b1-b8f9-09f80514879b","navigationType":0,"readyForUser":1048,"redirectCount":0,"resourceLoadedEnd":1088.3000001907349,"resourceLoadedStart":315.1000003814697,"resourceTiming":[{"duration":53,"initiatorType":"link","name":"https://jira.mariadb.org/s/2c21342762a6a02add1c328bed317ffd-CDN/lu2cib/820016/12ta74/0a8bac35585be7fc6c9cc5a0464cd4cf/_/download/contextbatch/css/_super/batch.css","startTime":315.1000003814697,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":315.1000003814697,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":368.1000003814697,"responseStart":0,"secureConnectionStart":0},{"duration":53,"initiatorType":"link","name":"https://jira.mariadb.org/s/7ebd35e77e471bc30ff0eba799ebc151-CDN/lu2cib/820016/12ta74/494e4c556ecbb29f90a3d3b4f09cb99c/_/download/contextbatch/css/jira.browse.project,project.issue.navigator,jira.view.issue,jira.general,jira.global,atl.general,-_super/batch.css?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&slack-enabled=true&whisper-enabled=true","startTime":315.4000005722046,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":315.4000005722046,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":368.4000005722046,"responseStart":0,"secureConnectionStart":0},{"duration":107.90000057220459,"initiatorType":"script","name":"https://jira.mariadb.org/s/0917945aaa57108d00c5076fea35e069-CDN/lu2cib/820016/12ta74/0a8bac35585be7fc6c9cc5a0464cd4cf/_/download/contextbatch/js/_super/batch.js?locale=en","startTime":315.5,"connectEnd":315.5,"connectStart":315.5,"domainLookupEnd":315.5,"domainLookupStart":315.5,"fetchStart":315.5,"redirectEnd":0,"redirectStart":0,"requestStart":315.5,"responseEnd":423.4000005722046,"responseStart":423.4000005722046,"secureConnectionStart":315.5},{"duration":181.69999980926514,"initiatorType":"script","name":"https://jira.mariadb.org/s/2d8175ec2fa4c816e8023260bd8c1786-CDN/lu2cib/820016/12ta74/494e4c556ecbb29f90a3d3b4f09cb99c/_/download/contextbatch/js/jira.browse.project,project.issue.navigator,jira.view.issue,jira.general,jira.global,atl.general,-_super/batch.js?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&locale=en&slack-enabled=true&whisper-enabled=true","startTime":315.70000076293945,"connectEnd":315.70000076293945,"connectStart":315.70000076293945,"domainLookupEnd":315.70000076293945,"domainLookupStart":315.70000076293945,"fetchStart":315.70000076293945,"redirectEnd":0,"redirectStart":0,"requestStart":315.70000076293945,"responseEnd":497.4000005722046,"responseStart":497.4000005722046,"secureConnectionStart":315.70000076293945},{"duration":185.39999961853027,"initiatorType":"script","name":"https://jira.mariadb.org/s/a9324d6758d385eb45c462685ad88f1d-CDN/lu2cib/820016/12ta74/c92c0caa9a024ae85b0ebdbed7fb4bd7/_/download/contextbatch/js/atl.global,-_super/batch.js?locale=en","startTime":315.9000005722046,"connectEnd":315.9000005722046,"connectStart":315.9000005722046,"domainLookupEnd":315.9000005722046,"domainLookupStart":315.9000005722046,"fetchStart":315.9000005722046,"redirectEnd":0,"redirectStart":0,"requestStart":315.9000005722046,"responseEnd":501.30000019073486,"responseStart":501.30000019073486,"secureConnectionStart":315.9000005722046},{"duration":185.79999923706055,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/1.0/_/download/batch/jira.webresources:calendar-en/jira.webresources:calendar-en.js","startTime":316.20000076293945,"connectEnd":316.20000076293945,"connectStart":316.20000076293945,"domainLookupEnd":316.20000076293945,"domainLookupStart":316.20000076293945,"fetchStart":316.20000076293945,"redirectEnd":0,"redirectStart":0,"requestStart":316.20000076293945,"responseEnd":502,"responseStart":502,"secureConnectionStart":316.20000076293945},{"duration":186.19999980926514,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/1.0/_/download/batch/jira.webresources:calendar-localisation-moment/jira.webresources:calendar-localisation-moment.js","startTime":316.30000019073486,"connectEnd":316.30000019073486,"connectStart":316.30000019073486,"domainLookupEnd":316.30000019073486,"domainLookupStart":316.30000019073486,"fetchStart":316.30000019073486,"redirectEnd":0,"redirectStart":0,"requestStart":316.30000019073486,"responseEnd":502.5,"responseStart":502.5,"secureConnectionStart":316.30000019073486},{"duration":252.20000076293945,"initiatorType":"link","name":"https://jira.mariadb.org/s/b04b06a02d1959df322d9cded3aeecc1-CDN/lu2cib/820016/12ta74/a2ff6aa845ffc9a1d22fe23d9ee791fc/_/download/contextbatch/css/jira.global.look-and-feel,-_super/batch.css","startTime":316.5,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":316.5,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":568.7000007629395,"responseStart":0,"secureConnectionStart":0},{"duration":186.69999980926514,"initiatorType":"script","name":"https://jira.mariadb.org/rest/api/1.0/shortcuts/820016/47140b6e0a9bc2e4913da06536125810/shortcuts.js?context=issuenavigation&context=issueaction","startTime":316.70000076293945,"connectEnd":316.70000076293945,"connectStart":316.70000076293945,"domainLookupEnd":316.70000076293945,"domainLookupStart":316.70000076293945,"fetchStart":316.70000076293945,"redirectEnd":0,"redirectStart":0,"requestStart":316.70000076293945,"responseEnd":503.4000005722046,"responseStart":503.4000005722046,"secureConnectionStart":316.70000076293945},{"duration":251.89999961853027,"initiatorType":"link","name":"https://jira.mariadb.org/s/3ac36323ba5e4eb0af2aa7ac7211b4bb-CDN/lu2cib/820016/12ta74/d176f0986478cc64f24226b3d20c140d/_/download/contextbatch/css/com.atlassian.jira.projects.sidebar.init,-_super,-project.issue.navigator,-jira.view.issue/batch.css?jira.create.linked.issue=true","startTime":316.9000005722046,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":316.9000005722046,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":568.8000001907349,"responseStart":0,"secureConnectionStart":0},{"duration":187,"initiatorType":"script","name":"https://jira.mariadb.org/s/5d5e8fe91fbc506585e83ea3b62ccc4b-CDN/lu2cib/820016/12ta74/d176f0986478cc64f24226b3d20c140d/_/download/contextbatch/js/com.atlassian.jira.projects.sidebar.init,-_super,-project.issue.navigator,-jira.view.issue/batch.js?jira.create.linked.issue=true&locale=en","startTime":317,"connectEnd":317,"connectStart":317,"domainLookupEnd":317,"domainLookupStart":317,"fetchStart":317,"redirectEnd":0,"redirectStart":0,"requestStart":317,"responseEnd":504,"responseStart":504,"secureConnectionStart":317},{"duration":715.6999998092651,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/1.0/_/download/batch/jira.webresources:bigpipe-js/jira.webresources:bigpipe-js.js","startTime":317.9000005722046,"connectEnd":317.9000005722046,"connectStart":317.9000005722046,"domainLookupEnd":317.9000005722046,"domainLookupStart":317.9000005722046,"fetchStart":317.9000005722046,"redirectEnd":0,"redirectStart":0,"requestStart":317.9000005722046,"responseEnd":1033.6000003814697,"responseStart":1033.6000003814697,"secureConnectionStart":317.9000005722046},{"duration":764.6000003814697,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/1.0/_/download/batch/jira.webresources:bigpipe-init/jira.webresources:bigpipe-init.js","startTime":318,"connectEnd":318,"connectStart":318,"domainLookupEnd":318,"domainLookupStart":318,"fetchStart":318,"redirectEnd":0,"redirectStart":0,"requestStart":318,"responseEnd":1082.6000003814697,"responseStart":1082.6000003814697,"secureConnectionStart":318},{"duration":87.19999980926514,"initiatorType":"xmlhttprequest","name":"https://jira.mariadb.org/rest/webResources/1.0/resources","startTime":596.6000003814697,"connectEnd":596.6000003814697,"connectStart":596.6000003814697,"domainLookupEnd":596.6000003814697,"domainLookupStart":596.6000003814697,"fetchStart":596.6000003814697,"redirectEnd":0,"redirectStart":0,"requestStart":596.6000003814697,"responseEnd":683.8000001907349,"responseStart":683.8000001907349,"secureConnectionStart":596.6000003814697},{"duration":232.69999980926514,"initiatorType":"link","name":"https://jira.mariadb.org/s/d5715adaadd168a9002b108b2b039b50-CDN/lu2cib/820016/12ta74/be4b45e9cec53099498fa61c8b7acba4/_/download/contextbatch/css/jira.project.sidebar,-_super,-project.issue.navigator,-jira.general,-jira.browse.project,-jira.view.issue,-jira.global,-atl.general,-com.atlassian.jira.projects.sidebar.init/batch.css?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&slack-enabled=true&whisper-enabled=true","startTime":853.7000007629395,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":853.7000007629395,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":1086.4000005722046,"responseStart":0,"secureConnectionStart":0},{"duration":234,"initiatorType":"link","name":"https://jira.mariadb.org/s/50bc9be5bfead1a25e72c1a9338c94f6-CDN/lu2cib/820016/12ta74/e108c7645258ccb43280ed3404e3e949/_/download/contextbatch/css/com.atlassian.jira.plugins.jira-development-integration-plugin:0,-_super,-jira.view.issue,-jira.global,-jira.general,-jira.browse.project,-project.issue.navigator,-atl.general/batch.css?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&slack-enabled=true&whisper-enabled=true","startTime":854.3000001907349,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":854.3000001907349,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":1088.3000001907349,"responseStart":0,"secureConnectionStart":0},{"duration":339.6000003814697,"initiatorType":"script","name":"https://jira.mariadb.org/s/d41d8cd98f00b204e9800998ecf8427e-CDN/lu2cib/820016/12ta74/e65b778d185daf5aee24936755b43da6/_/download/contextbatch/js/browser-metrics-plugin.contrib,-_super,-project.issue.navigator,-jira.view.issue,-atl.general/batch.js?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&slack-enabled=true&whisper-enabled=true","startTime":855.3000001907349,"connectEnd":855.3000001907349,"connectStart":855.3000001907349,"domainLookupEnd":855.3000001907349,"domainLookupStart":855.3000001907349,"fetchStart":855.3000001907349,"redirectEnd":0,"redirectStart":0,"requestStart":855.3000001907349,"responseEnd":1194.9000005722046,"responseStart":1194.9000005722046,"secureConnectionStart":855.3000001907349},{"duration":359.80000019073486,"initiatorType":"script","name":"https://jira.mariadb.org/s/e0bf5781d46ea69fb123572974cf39de-CDN/lu2cib/820016/12ta74/e108c7645258ccb43280ed3404e3e949/_/download/contextbatch/js/com.atlassian.jira.plugins.jira-development-integration-plugin:0,-_super,-jira.view.issue,-jira.global,-jira.general,-jira.browse.project,-project.issue.navigator,-atl.general/batch.js?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&locale=en&slack-enabled=true&whisper-enabled=true","startTime":856.1000003814697,"connectEnd":856.1000003814697,"connectStart":856.1000003814697,"domainLookupEnd":856.1000003814697,"domainLookupStart":856.1000003814697,"fetchStart":856.1000003814697,"redirectEnd":0,"redirectStart":0,"requestStart":856.1000003814697,"responseEnd":1215.9000005722046,"responseStart":1215.9000005722046,"secureConnectionStart":856.1000003814697},{"duration":357.80000019073486,"initiatorType":"script","name":"https://jira.mariadb.org/s/097ae97cb8fbec7d6ea4bbb1f26955b9-CDN/lu2cib/820016/12ta74/be4b45e9cec53099498fa61c8b7acba4/_/download/contextbatch/js/jira.project.sidebar,-_super,-project.issue.navigator,-jira.general,-jira.browse.project,-jira.view.issue,-jira.global,-atl.general,-com.atlassian.jira.projects.sidebar.init/batch.js?agile_global_admin_condition=true&jag=true&jira.create.linked.issue=true&locale=en&slack-enabled=true&whisper-enabled=true","startTime":855.6000003814697,"connectEnd":855.6000003814697,"connectStart":855.6000003814697,"domainLookupEnd":855.6000003814697,"domainLookupStart":855.6000003814697,"fetchStart":855.6000003814697,"redirectEnd":0,"redirectStart":0,"requestStart":855.6000003814697,"responseEnd":1213.4000005722046,"responseStart":1213.4000005722046,"secureConnectionStart":855.6000003814697}],"fetchStart":0,"domainLookupStart":0,"domainLookupEnd":0,"connectStart":0,"connectEnd":0,"requestStart":151,"responseStart":310,"responseEnd":312,"domLoading":313,"domInteractive":1126,"domContentLoadedEventStart":1126,"domContentLoadedEventEnd":1197,"domComplete":1386,"loadEventStart":1386,"loadEventEnd":1387,"userAgent":"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)","marks":[{"name":"bigPipe.sidebar-id.start","time":1101.9000005722046},{"name":"bigPipe.sidebar-id.end","time":1102.7000007629395},{"name":"bigPipe.activity-panel-pipe-id.start","time":1102.9000005722046},{"name":"bigPipe.activity-panel-pipe-id.end","time":1104},{"name":"activityTabFullyLoaded","time":1219.3000001907349}],"measures":[],"correlationId":"cc385bca71a756","effectiveType":"4g","downlink":10,"rtt":0,"serverDuration":93,"dbReadsTimeInMs":10,"dbConnsTimeInMs":18,"applicationHash":"9d11dbea5f4be3d4cc21f03a88dd11d8c8687422","experiments":[]}}
no, this is about adding support for a FORMAT clause, as specified in the SQL standard