yeah, this looks like a bug in the get expression.
Joel Bernstein
http://joelsolr.blogspot.com/
On Fri, Jun 23, 2017 at 11:07 AM, Susheel Kumar <susheel2...@gmail.com>
wrote:
> Hi Joel,
>
> As i am getting deeper, it doesn't look like a problem due to hashJoin etc.
>
>
> Below is a simple let expr where if search would not find a match and
> return 0 result. In that case, I would expect get(a) to show a EOF tuple
> while it is throwing exception. It looks like something wrong/bug in the
> code. Please suggest
>
> ===
> let(a=search(collection1,
> q=id:999999999,
> fl="id,business_email",
> sort="business_email asc"),
> get(a)
> )
>
>
> {
> "result-set": {
> "docs": [
> {
> "EXCEPTION": "Index: 0, Size: 0",
> "EOF": true,
> "RESPONSE_TIME": 8
> }
> ]
> }
> }
>
>
>
>
>
>
>
> On Fri, Jun 23, 2017 at 7:44 AM, Joel Bernstein <joels...@gmail.com>
> wrote:
>
> > Ok, I hadn't anticipated some of the scenarios that you've been trying
> out.
> > Particularly reading streams into variables and performing joins etc...
> >
> > The main idea with variables was to use them with the new statistical
> > evaluators. So you perform retrievals (search, random, nodes, knn etc...)
> > set the results to variables and then perform statistical analysis.
> >
> > The problem with joining variables is that is doesn't scale very well
> > because all the records are read into memory. Also the parallel stream
> > won't work over variables.
> >
> > Joel Bernstein
> > http://joelsolr.blogspot.com/
> >
> > On Thu, Jun 22, 2017 at 3:50 PM, Susheel Kumar <susheel2...@gmail.com>
> > wrote:
> >
> > > Hi Joel,
> > >
> > > I am able to reproduce this in a simple way. Looks like Let Stream is
> > > having some issues. Below complement function works fine if I execute
> > > outside let and returns an EOF:true tuple but if a tuple with EOF:true
> > > assigned to let variable, it gets changed to EXCEPTION "Index 0, Size
> 0"
> > > etc.
> > >
> > > So let stream not able to handle the stream/results which has only EOF
> > > tuple and breaks the whole let expression block
> > >
> > >
> > > ===Complement inside let
> > > let(
> > > a=echo(Hello),
> > > b=complement(sort(select(tuple(id=1,email="A"),id,email),by="id
> > asc,email
> > > asc"),
> > > sort(select(tuple(id=1,email="A"),id,email),by="id asc,email asc"),
> > > on="id,email"),
> > > c=get(b),
> > > get(a)
> > > )
> > >
> > > Result
> > > ===
> > > {
> > > "result-set": {
> > > "docs": [
> > > {
> > > "EXCEPTION": "Index: 0, Size: 0",
> > > "EOF": true,
> > > "RESPONSE_TIME": 1
> > > }
> > > ]
> > > }
> > > }
> > >
> > > ===Complement outside let
> > >
> > > complement(sort(select(tuple(id=1,email="A"),id,email),by="id
> asc,email
> > > asc"),
> > > sort(select(tuple(id=1,email="A"),id,email),by="id asc,email asc"),
> > > on="id,email")
> > >
> > > Result
> > > ===
> > > { "result-set": { "docs": [ { "EOF": true, "RESPONSE_TIME": 0 } ] } }
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > On Thu, Jun 22, 2017 at 11:55 AM, Susheel Kumar <susheel2...@gmail.com
> >
> > > wrote:
> > >
> > > > Sorry for typo
> > > >
> > > > Facing a weird behavior when using hashJoin / innerJoin etc. The
> below
> > > > expression display tuples from variable a shown below
> > > >
> > > >
> > > > let(a=fetch(SMS,having(rollup(over=email,
> > > > count(email),
> > > > select(search(SMS,
> > > > q=*:*,
> > > > fl="id,dv_sv_business_email",
> > > > sort="dv_sv_business_email asc"),
> > > > id,
> > > > dv_sv_business_email as email)),
> > > > eq(count(email),1)),
> > > > fl="id,dv_sv_business_email as email",
> > > > on="email=dv_sv_business_email"),
> > > > b=fetch(SMS,having(rollup(over=email,
> > > > count(email),
> > > > select(search(SMS,
> > > > q=*:*,
> > > > fl="id,dv_sv_personal_email",
> > > > sort="dv_sv_personal_email asc"),
> > > > id,
> > > > dv_sv_personal_email as email)),
> > > > eq(count(email),1)),
> > > > fl="id,dv_sv_personal_email as email",
> > > > on="email=dv_sv_personal_email"),
> > > > c=innerJoin(sort(get(a),by="email asc"),sort(get(b),by="email
> > > > asc"),on="email"),
> > > > #d=select(get(c),id,email),
> > > > get(a)
> > > > )
> > > >
> > > > var a result
> > > > ==
> > > > {
> > > > "result-set": {
> > > > "docs": [
> > > > {
> > > > "count(email)": 1,
> > > > "id": "1",
> > > > "email": "A"
> > > > },
> > > > {
> > > > "count(email)": 1,
> > > > "id": "2",
> > > > "email": "C"
> > > > },
> > > > {
> > > > "EOF": true,
> > > > "RESPONSE_TIME": 18
> > > > }
> > > > ]
> > > > }
> > > > }
> > > >
> > > > And after uncomment var d above, even though we are displaying a, we
> > get
> > > > results shown below. I understand that join in my test data didn't
> find
> > > any
> > > > match but then it should not skew up the results of var a. When data
> > > > matches during join then its fine but otherwise I am running into
> this
> > > > issue and whole next expressions doesn't get evaluated due to this...
> > > >
> > > >
> > > > after uncomment var d
> > > > ===
> > > > {
> > > > "result-set": {
> > > > "docs": [
> > > > {
> > > > "EXCEPTION": "Index: 0, Size: 0",
> > > > "EOF": true,
> > > > "RESPONSE_TIME": 44
> > > > }
> > > > ]
> > > > }
> > > > }
> > > >
> > > > On Thu, Jun 22, 2017 at 11:51 AM, Susheel Kumar <
> susheel2...@gmail.com
> > >
> > > > wrote:
> > > >
> > > >> Hello Joel,
> > > >>
> > > >> Facing a weird behavior when using hashJoin / innerJoin etc. The
> below
> > > >> expression display tuples from variable a and the moment I use get
> > on
> > > >> innerJoin / hashJoin expr on variable c
> > > >>
> > > >>
> > > >> let(a=fetch(SMS,having(rollup(over=email,
> > > >> count(email),
> > > >> select(search(SMS,
> > > >> q=*:*,
> > > >> fl="id,dv_sv_business_email",
> > > >> sort="dv_sv_business_email asc"),
> > > >> id,
> > > >> dv_sv_business_email as email)),
> > > >> eq(count(email),1)),
> > > >> fl="id,dv_sv_business_email as email",
> > > >> on="email=dv_sv_business_email"),
> > > >> b=fetch(SMS,having(rollup(over=email,
> > > >> count(email),
> > > >> select(search(SMS,
> > > >> q=*:*,
> > > >> fl="id,dv_sv_personal_email",
> > > >> sort="dv_sv_personal_email asc"),
> > > >> id,
> > > >> dv_sv_personal_email as email)),
> > > >> eq(count(email),1)),
> > > >> fl="id,dv_sv_personal_email as email",
> > > >> on="email=dv_sv_personal_email"),
> > > >> c=innerJoin(sort(get(a),by="email asc"),sort(get(b),by="email
> > > >> asc"),on="email"),
> > > >> #d=select(get(c),id,email),
> > > >> get(a)
> > > >> )
> > > >>
> > > >> var a result
> > > >> ==
> > > >> {
> > > >> "result-set": {
> > > >> "docs": [
> > > >> {
> > > >> "count(email)": 1,
> > > >> "id": "1",
> > > >> "email": "A"
> > > >> },
> > > >> {
> > > >> "count(email)": 1,
> > > >> "id": "2",
> > > >> "email": "C"
> > > >> },
> > > >> {
> > > >> "EOF": true,
> > > >> "RESPONSE_TIME": 18
> > > >> }
> > > >> ]
> > > >> }
> > > >> }
> > > >>
> > > >> after uncomment var d above, even though we are displaying a, we get
> > > >> results like below. I understand that join in my test data didn't
> find
> > > any
> > > >> match but then it should not skew up the results of var a. When
> data
> > > >> matches during join then its fine but otherwise I am running into
> this
> > > >> issue and whole next expressions doesn't get evaluated due to
> this...
> > > >>
> > > >>
> > > >> {
> > > >> "result-set": {
> > > >> "docs": [
> > > >> {
> > > >> "EXCEPTION": "Index: 0, Size: 0",
> > > >> "EOF": true,
> > > >> "RESPONSE_TIME": 44
> > > >> }
> > > >> ]
> > > >> }
> > > >> }
> > > >>
> > > >
> > > >
> > >
> >
>
