CreateQuery geohash_test_data (children 3)
 Identifier geohash_test_data
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration latitude (children 1)
    DataType Float64
   ColumnDeclaration longitude (children 1)
    DataType Float64
   ColumnDeclaration encoded (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList (children 3)
    Identifier latitude
    Identifier longitude
    Identifier encoded