Dave Gosselin 62a1f0d990 MDEV-36092 New-style hint: [NO_]SPLIT_MATERIALIZED ...

Support for optimizer hints NO_SPLIT_MATERIALIZED and
SPLIT_MATERIALIZED.  These hints allow fine-grained control
of the "lateral derived" optimization within a query.

Introduces new overload of hint_table_state function which
tells both a hint's value as well as whether it is present.
This is useful to disambiguate cases that the other version
of hint_table_state cannot, such as when a hint is forcing
a behavior in the optimizer that it would not normally do
and the corresponding optimizer switch is enabled.

2025-07-15 10:41:42 -04:00

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