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The JSON_SET returns wrong result for empty object #59619

Open
Tracked by #59410
YangKeao opened this issue Feb 18, 2025 · 0 comments · May be fixed by #59687
Open
Tracked by #59410

The JSON_SET returns wrong result for empty object #59619

YangKeao opened this issue Feb 18, 2025 · 0 comments · May be fixed by #59687
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@YangKeao
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affects-6.5 This bug affects the 6.5.x(LTS) versions. affects-7.1 This bug affects the 7.1.x(LTS) versions. affects-7.5 This bug affects the 7.5.x(LTS) versions. affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-8.5 This bug affects the 8.5.x(LTS) versions. component/json severity/moderate sig/sql-infra SIG: SQL Infra type/bug The issue is confirmed as a bug.

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Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

SELECT JSON_SET('{}', '$[last]', 'end')

2. What did you expect to see? (Required)

["\"end\""]

3. What did you see instead (Required)

["[{}, \"end\"]"]

4. What is your TiDB version? (Required)
@YangKeao YangKeao added component/json severity/major sig/sql-infra SIG: SQL Infra type/bug The issue is confirmed as a bug. labels Feb 18, 2025
@YangKeao YangKeao self-assigned this Feb 18, 2025
This was referenced Feb 18, 2025
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Open
@YangKeao YangKeao added severity/moderate affects-6.5 This bug affects the 6.5.x(LTS) versions. affects-7.1 This bug affects the 7.1.x(LTS) versions. affects-7.5 This bug affects the 7.5.x(LTS) versions. affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-8.5 This bug affects the 8.5.x(LTS) versions. and removed may-affects-5.4 This bug maybe affects 5.4.x versions. may-affects-6.1 may-affects-6.5 may-affects-7.1 may-affects-7.5 may-affects-8.1 may-affects-8.5 severity/major labels Feb 21, 2025
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@YangKeao YangKeao

Labels
affects-6.5 This bug affects the 6.5.x(LTS) versions. affects-7.1 This bug affects the 7.1.x(LTS) versions. affects-7.5 This bug affects the 7.5.x(LTS) versions. affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-8.5 This bug affects the 8.5.x(LTS) versions. component/json severity/moderate sig/sql-infra SIG: SQL Infra type/bug The issue is confirmed as a bug.
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json: extract the $[last] entry from json object should also return itself YangKeao/tidb
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@YangKeao