Sergei Golubchik 6789f2cfab MDEV-18304 sql_safe_updates does not work with OR clauses ...

not every index-using plan sets bits in table->quick_keys.
QUICK_ROR_INTERSECT_SELECT, for example, doesn't.

Use the fact that select->quick is set instead.

Also allow EXPLAIN to work.

2022-03-12 19:13:17 +01:00

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