CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration x (children 2)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
    Literal \'Hello\'
 Storage definition (children 1)
  Function Memory (children 1)
   ExpressionList
