CreateQuery x2 (children 3)
 Identifier x2
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration i (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType int
   ColumnDeclaration j (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType int
 Storage definition (children 3)
  Function ReplicatedMergeTree (children 1)
   ExpressionList (children 2)
    Literal \'/clickhouse/tables/{database}/x2\'
    Literal \'r1\'
  Function tuple
  Set
