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These settings are available in system.settings and are autogenerated from source.

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optimize_if_chain_to_multiif

Replace if(cond1, then1, if(cond2, …)) chains to multiIf. Currently it’s not beneficial for numeric types.

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optimize_if_transform_strings_to_enum

Replaces string-type arguments in If and Transform to enum. Disabled by default cause it could make inconsistent change in distributed query that would lead to its fail.
Last modified on July 23, 2026