CreateQuery non_const_needle (children 3)
 Identifier non_const_needle
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration id (children 1)
    DataType UInt32
   ColumnDeclaration haystack (children 1)
    DataType String
   ColumnDeclaration needle (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Identifier id
