CreateQuery replicated_constraints2 (children 3)
 Identifier replicated_constraints2
 Columns definition (children 2)
  ExpressionList (children 2)
   ColumnDeclaration a (children 1)
    DataType UInt32
   ColumnDeclaration b (children 1)
    DataType UInt32
  ExpressionList (children 1)
   Constraint (children 1)
    Function less (children 1)
     ExpressionList (children 2)
      Identifier a
      Literal UInt64_10
 Storage definition (children 2)
  Function ReplicatedMergeTree (children 1)
   ExpressionList (children 2)
    Literal \'/clickhouse/tables/{database}/test_00988/alter_constraints\'
    Literal \'r2\'
  Identifier a
