CreateQuery lct0 (children 3)
 Identifier lct0
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration c0 (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType Nullable (children 1)
       ExpressionList (children 1)
        DataType Int64
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier c0
  Set
