Re: pg_overexplain produces invalid JSON with RANGE_TABLE option

[Amit Langote]

Hi,

On Thu, Apr 16, 2026 at 6:36 AM SATYANARAYANA NARLAPURAM
<satyanarlapu...@gmail.com> wrote:
>
> Hi Hackers,
>
> It appears that pg_overexplain produces invalid JSON output when
> EXPLAIN (FORMAT JSON, RANGE_TABLE) is used. The "Unprunable RTIs" and
> "Result RTIs" properties are emitted as key:value pairs directly inside
> the "Range Table" JSON array, which is structurally invalid.

Thanks for the report and the patch.  That makes sense.

> Attempted to fix this by moving ExplainCloseGroup() before the two 
> overexplain_bitmapset()
> calls, so the properties are emitted as siblings of "Range Table" in the 
> parent object rather
> than inside the array.
>
> Attached a patch to address this which also includes a test.

I have added a commit message.  Will commit shortly to master and v18.

-- 
Thanks, Amit Langote

v1-0001-Fix-pg_overexplain-to-emit-valid-output-with-RANG.patch
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