CreateQuery test_table (children 3)
 Identifier test_table
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration c0 (children 2)
    DataType String
    Identifier c1
   ColumnDeclaration c1 (children 1)
    DataType String
   ColumnDeclaration c2 (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier c1
