Fix starting the server with tables having default expressions containing dictGet()

[vitlibar]

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Changelog category:

• Bug Fix

Changelog entry:
Fix starting the server with tables having default expressions containing dictGet().
Allow getting return type of dictGet() without loading dictionary.

[kitaisreal]

It seems like there can be a race condition, because this helper is used in IFunction getReturnType, and this getReturnType can be called from multiple threads.

[vitlibar]

Yes, you're right. Actually we can't use that kind of caching here at all due to #16205. I've changed the code.

[kitaisreal]

Please remove TODO at line 280.

/// TODO: We can load only dictionary structure

[vitlibar]

done

[filimonov]

Closes #13613

[filimonov]

Also #13059 and maybe more.

[vitlibar]

1. test_materialize_mysql_database/test.py::test_select_without_columns_8_0 will be fixed in Fix flaky integration tests #19971

2. AST fuzzer (UBSan)

SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior:
../src/AggregateFunctions/ReservoirSamplerDeterministic.h:59:31: runtime error: shift exponent 32 is too large for 32-bit type 'UInt32' (aka 'unsigned int')

../src/AggregateFunctions/ReservoirSamplerDeterministic.h:59:

class ReservoirSamplerDeterministic
{
    bool good(const UInt32 hash)
    {
        return hash == ((hash >> skip_degree) << skip_degree); /// <-- line 59
    }

#20879

3. Stress test (thread)

WARNING: ThreadSanitizer: data race (pid=299)
  Write of size 4 at 0x7b580093a4c0 by thread T139 (mutexes: write M16829229):
    #0 DB::IMergeTreeDataPart::setState
Previous read of size 4 at 0x7b580093a4c0 by thread T739:
    #0 DB::IMergeTreeDataPart::stateString()