Hi Nicola,
Which Virtuoso server type single server or cluster are you using and also the
version, as the error message implies you are running on a cluster which is not
supported in open source ?
Best Regards
Hugh Williams
Professional Services
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On 6 Feb 2014, at 22:29, Nicola Vitucci <nicola.vitu...@gmail.com> wrote:
> Hi all,
>
> I got this message while running a query:
>
> *** Error 42000: [Virtuoso Driver][Virtuoso Server]CL...: The array
> extend 1048576 is less than requested 1310721
>
> What could be the cause? I pasted here the query and the output of
> EXPLAIN().
>
> Thanks,
>
> Nicola
>
> _______________________________________________________________________________
>
> SELECT ?val (COUNT(?id) as ?vc) WHERE {?id
> <http://.../ontologies/hasProp> ?val . ?id
> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
> <http://.../ontologies/Class> .} GROUP BY ?val ORDER BY DESC(?vc) LIMIT 15
>
> ______________________________________________________________________________
>
> {
> s# 107 cluster outer seq start, set no <V $104 set_ctr in>
> save ctx:()
> s# 112 Subquery 27
> multistate set no = <V $30 set_no i>
> {
> s# 148 Fork 68
> {
>
> save ctx:()
> set no = <V $30 set_no i> array <none> save: ()
> s# 134 Fork 39
> {
>
> save ctx:()
> set no = <V $30 set_no i> array <none> save: ()
> s# 118 from DB.DBA.RDF_QUAD by RDF_QUAD_POGS 1.3e+07 rows Parallel,
> tail cost 4.6e+07
> Key RDF_QUAD_POGS ASC (<V $33 s_1_4_t0.S rn>, <V $32 s_1_4_t0.O an>)
> inlined P = #ontologies/hasProp
>
> s# 125 from DB.DBA.RDF_QUAD by RDF_QUAD_POGS 0.43 rows Parallel,
> tail cost 3.7
> Key RDF_QUAD_POGS ASC ()
> inlined P = #type , O = #ontologies/hasProp , S = <V $33
> s_1_4_t0.S rn>
> row specs: O LIKE <c T�>
>
>
> After code:
> 0: <V $37 isnotnull in> := Call isnotnull (<r $33 s_1_4_t0.S via
> S125>)
> 5: BReturn 0
> s# 130 Sort (HASH) set no <r $30 set_no via S125 S118>(<r $30 set_no
> via S125 S118>, <r $32 s_1_4_t0.O via S125>) -> (<V $37 isnotnull in>)
> up to 5.8e+06 distinct
>
> }
> s# 137 group by read node
> (<V $49 gb_set_no i>, <V $32 s_1_4_t0.O an>, <V $41 aggregate in>)
> set no returned in <V $49 gb_set_no i>
>
> Precode:
> 0: <V $66 __ro2sq a> := Call __ro2sq (<V $32 s_1_4_t0.O an>)
> 5: BReturn 0
> s# 144 Sort (HASH) set no <r $30 set_no via S137>(TOP 15 ) (<V $41
> aggregate in>) -> (<V $66 __ro2sq a>)
>
> }
> s# 151 top order by node (<V $66 __ro2sq a>, <V $41 aggregate in>)
> set no <V $30 set_no i>
>
> After code:
> 0: <V $28 val a> := := artm <V $66 __ro2sq a>
> 4: <V $29 vc i> := := artm <V $41 aggregate in>
> 8: BReturn 0
> s# 112 Subquery Select(<V $28 val a>, <V $29 vc i>)
> set no: <r $30 set_no via S151>
> }
>
>
> After code:
> 0: <V $94 val a> := Call __ro2sq (<V $28 val a>)
> 5: <V $96 vc a> := Call __ro2sq (<V $29 vc i>)
> 10: BReturn 0
> s# 162 Select (<V $94 val a>, <V $96 vc a>)
> set no: <r $104 set_ctr via S112>
> }
>
> ------------------------------------------------------------------------------
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