MySQL Bugs: #111357: JSON explain assertion error

Bug #111357	JSON explain assertion error
Submitted:	12 Jun 2023 8:03	Modified:	12 Jun 2023 8:55
Reporter:	Pedro Ferreira	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Server: Optimizer	Severity:	S6 (Debug Builds)
Version:	8.0.33	OS:	Ubuntu (22.04)
Assigned to:		CPU Architecture:	x86 (x86_64)
Tags:	explain, json

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Description:
Run these queries:

CREATE TABLE t0 (c0 INT);
EXPLAIN FORMAT = JSON SELECT count(count(*)) OVER () FROM t0 ORDER BY (SELECT 1 WHERE NOT 1);

The EXPLAIN will trigger an assertion error at sql/opt_explain_json.cc:1280
assert(0);

The compilation parameters are the same as issue 108148:

-DWITH_DEBUG=1 -DWITH_ASAN=ON -DWITH_UBSAN=ON and boost library version 1.77

How to repeat:
Run the queries above.

Hello Pedro Ferreira,

Thank you for the report and feedback.
Verified as described.

regards,
Umesh