MySQL Bugs: #115400: The hint /+ NO_BNL(t0)/ does not always work as expected

Bug #115400	The hint /+ NO_BNL(t0)/ does not always work as expected
Submitted:	21 Jun 2024 4:14	Modified:	21 Jun 2024 6:47
Reporter:	hongjun xiao	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Server: Optimizer	Severity:	S3 (Non-critical)
Version:	8.4.0 LTS	OS:	Any
Assigned to:		CPU Architecture:	Any
Tags:	hint, NO_BNL

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File:	Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file:

On *nix platforms use the split command e.g. split -b 50MB <my_large_archive> <my_split_archive_prefix>
On windows use WinZip or a similar utility to split the large file

It may be a feasible solution that the optimizer should initialize the derived table hints from the owning query block.

Attachment: set_table_hints_for_derived_tables.patch (application/octet-stream, text), 615 bytes.