CreateQuery t1 (children 3)
 Identifier t1
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration c0 (children 1)
    DataType JSON
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier c0
  Function tuple (children 1)
   ExpressionList
