AlterQuery  crash_02919 (children 3)
 ExpressionList (children 1)
  AlterCommand UPDATE (children 2)
   Function equals (children 1)
    ExpressionList (children 2)
     Literal UInt64_1
     Literal UInt64_1
   ExpressionList (children 1)
    Assignment b (children 1)
     Literal Float64_0.1
 Identifier crash_02919
 Set
