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sql: use optimizer cost perturbation and disable rule settings for metamorphic testing #93825
Description
We created session settings testing_optimizer_cost_perturbation and testing_optimizer_disable_rule_probability to use for the randomized tests costfuzz and unoptimized_query_oracle. We should also use them as metamorphic constants that are used with metamorphic testing. This will give us more test coverage.
Jira issue: CRDB-22542
Activity
rytaft commentedon Dec 20, 2022
Since these flags will make plans slow, we should probably not enable these flags on SQLite.
yuzefovich commentedon Feb 15, 2023
I looked into this in #94936, but there were quite a few failures and I since lost the context on it, so unassigning myself and putting into 23.2 bucket.