CreateQuery lc_00688 (children 3)
 Identifier lc_00688
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration str (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration val (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType UInt8
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList