Re: BUG #19625: SQL/JSON boolean DEFAULT expression silently replaced with 'false'

Hi Man,

Thank you for the updated patch. This review was prepared with AI assistance, including the local build and test execution.

Your 0002-json-bool-default-fix.patch applied without modification to PostgreSQL commit 9e7d152488f197e96f171f0714459c227c3f7693.

An independent 40-case test matrix went from 13 passing before the patch to all 40 passing afterward. Coverage included NULL boolean defaults; JSON_VALUE/JSON_QUERY with ON ERROR and ON EMPTY; domains and constraints; varchar length enforcement; JSON_TABLE; and volatile defaults evaluated only when needed, including repeated prepared-statement execution.

All nine JSON-related regression tests passed. Testing used Linux, GCC 14.2, --enable-cassert, and CFLAGS='-O0 -g0'. This was not a full PostgreSQL regression run or cross-platform validation.

No blocking issue was found within that scope. Could the regression tests also cover NULL::boolean, JSON_QUERY with ON EMPTY, and a nonconstant boolean default? These exercise distinct failures beyond the three added JSON_VALUE constant tests.