CreateQuery t_modify_from_lc_1 (children 3)
 Identifier t_modify_from_lc_1
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration a (children 2)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType UInt32
    Function CODEC (children 1)
     ExpressionList (children 1)
      Function NONE
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set
