```sql
CREATE TABLE t
(
   id Int64, 
   d String,
   p Map(String, String)
   
)
ENGINE = ReplacingMergeTree order by id settings index_granularity  = 0;


insert into t values (1,  's', {'a':'b'});

CH starts eating RAM until it crashes

the same with

insert into t select 1,  's', map('a','b');

```

throw Exception(
                        "Projection with name " + backQuote(projection.name) + " already exists",
                        ErrorCodes::LOGICAL_ERROR);
            projections_names.insert(projection.name);
        }
    }
    checkKeyExpression(*new_sorting_key.expression, new_sorting_key.sample_block, "Sorting", allow_nullable_key);
}
void MergeTreeData::setProperties(const StorageInMemoryMetadata & new_metadata, const StorageInMemoryMetadata & old_metadata, bool attach)
{
    checkProperties(new_metadata, old_metadata, attach);
    setInMemoryMetadata(new_metadata);
}
namespace
{
ExpressionActionsPtr getCombinedIndicesExpression(
    const KeyDescription & key,
    const IndicesDescription & indices,
    const ColumnsDescription & columns,
    ContextPtr context)
{
    ASTPtr combined_expr_list = key.expression_list_ast->clone();
    for (const auto & index : indices)
        for (const auto & index_expr : index.expression_list_ast->children)
            combined_expr_list->children.push_back(index_expr->clone());
    auto syntax_result = TreeRewriter(context).analyze(combined_expr_list, columns.getAllPhysical());
    return ExpressionAnalyzer(combined_expr_list, syntax_result, context).getActions(false);
}
}
ExpressionActionsPtr MergeTreeData::getMinMaxExpr(const KeyDescription & partition_key, const ExpressionActionsSettings & settings)