Dear all,
I have this strange behavior when running in BaseX 10.4:
["a","b","c"](1 + random:integer(3))
I got something empty result, sometimes (correctly) one out of the
three, sometimes two results...
I report the results and the trace in [1] and [2].
What is the reason for this?
Thank you.
Marco.
[1] Two results
a
c
Evaluating:
1
3
3
Compiling:
- rewrite list to xs:string sequence: ("a", "b", "c")
- swap operands: (1 + random:integer(3))
Optimized Query:
("a", "b", "c")[trace((random:integer(3) + 1))]
Query:
("a", "b", "c")[trace(1 + random:integer(3))]
Result:
- Hit(s): 2 Items
- Updated: 0 Items
- Printed: 3 b
- Read Locking: (none)
- Write Locking: (none)
Timing:
- Parsing: 0.21 ms
- Compiling: 0.4 ms
- Optimizing: 0.1 ms
- Evaluating: 0.57 ms
- Printing: 0.02 ms
- Total Time: 1.31 ms
[2] Empty result
()
Evaluating:
3
3
1
Compiling:
- rewrite list to xs:string sequence: ("a", "b", "c")
- swap operands: (1 + random:integer(3))
Optimized Query:
("a", "b", "c")[trace((random:integer(3) + 1))]
Query:
("a", "b", "c")[trace(1 + random:integer(3))]
Result:
- Hit(s): 0 Items
- Updated: 0 Items
- Printed: 0 b
- Read Locking: (none)
- Write Locking: (none)
Timing:
- Parsing: 0.16 ms
- Compiling: 0.41 ms
- Optimizing: 0.15 ms
- Evaluating: 0.56 ms
- Printing: 0.02 ms
- Total Time: 1.3 ms
Query Plan:
<QueryPlan compiled="true" updating="false">
<CachedFilter type="xs:string*">
<StrSeq type="xs:string+" size="3">
<Str type="xs:string" size="1">a</Str>
<Str type="xs:string" size="1">b</Str>
<Str type="xs:string" size="1">c</Str>
</StrSeq>
<FnTrace name="trace" type="xs:integer" size="1">
<Arith op="+" type="xs:integer" size="1">
<RandomInteger name="random:integer" type="xs:integer" size="1">
<Int type="xs:integer" size="1">3</Int>
</RandomInteger>
<Int type="xs:integer" size="1">1</Int>
</Arith>
</FnTrace>
</CachedFilter>
</QueryPlan>
