CreateQuery test_table_2 (children 3)
 Identifier test_table_2
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration vkey (children 1)
    DataType UInt32
   ColumnDeclaration pkey (children 1)
    DataType UInt32
   ColumnDeclaration c15 (children 1)
    DataType UInt32
 Storage definition (children 2)
  Function MergeTree
  Identifier vkey
