Re: [TinkerPop] equal doesn't work in where('a',eq('b'))

[Robert Dale]

I'm not sure what you expected here.  Given any row in your screenshot, a != b.

gremlin> g = TinkerFactory.createModern().traversal()

==>graphtraversalsource[tinkergraph[vertices:6 edges:6], standard]

gremlin> g.V().as('a').out().as('b').select('a','b').by(id).by(id)

==>[a:1,b:3]

==>[a:1,b:2]

==>[a:1,b:4]

==>[a:4,b:5]

==>[a:4,b:3]

==>[a:6,b:3]

// give any row, a != b, should not expect any results

gremlin> g.V().as('a').out().as('b').select('a','b').by(id).by(id).where('a',eq('b')) 

gremlin> g.V().as('a').out().in().as('b').select('a','b').by(id).by(id).where('a',eq('b'))

==>[a:1,b:1]

==>[a:1,b:1]

==>[a:1,b:1]

==>[a:4,b:4]

==>[a:4,b:4]

==>[a:6,b:6]

// mid-traversal V()

gremlin> g.V().as('a').V().as('b').select('a','b').by(id).by(id).where('a',eq('b'))

==>[a:1,b:1]

==>[a:2,b:2]

==>[a:3,b:3]

==>[a:4,b:4]

==>[a:5,b:5]

==>[a:6,b:6]

// and to demonstrate that there is a cross-product where a != b

gremlin> g.V().as('a').V().as('b').select('a','b').by(id).by(id).where('a',neq('b'))

==>[a:1,b:2]

==>[a:1,b:3]

==>[a:1,b:4]

==>[a:1,b:5]

==>[a:1,b:6]

==>[a:2,b:1]

==>[a:2,b:3]

==>[a:2,b:4]

==>[a:2,b:5]

==>[a:2,b:6]

==>[a:3,b:1]

==>[a:3,b:2]

==>[a:3,b:4]

==>[a:3,b:5]

==>[a:3,b:6]

==>[a:4,b:1]

==>[a:4,b:2]

==>[a:4,b:3]

==>[a:4,b:5]

==>[a:4,b:6]

==>[a:5,b:1]

==>[a:5,b:2]

==>[a:5,b:3]

==>[a:5,b:4]

==>[a:5,b:6]

==>[a:6,b:1]

==>[a:6,b:2]

==>[a:6,b:3]

==>[a:6,b:4]

==>[a:6,b:5]

Robert Dale

On Thu, Mar 21, 2019 at 10:05 AM Pareen Patel <par...@gmail.com> wrote:

g.V().has('ECCKT',textContains('101 /GE /BNT/LTR'))

.repeat(__.in().has('~label', 'Circu_Vrtx')).until(__.in().has('~label', 'Circu_Vrtx')

.count().is(0)).simplePath().dedup().order().as('a')

.V().has('ECCKT',textContains('102 /GE /LTR/LTR'))

.repeat(__.in().has('~label', 'Circu_Vrtx')).until(__.in().has('~label', 'Circu_Vrtx')

.count().is(0)).simplePath().dedup().order().as('b')

.select('a','b').by(id).by(id).where('a',eq('b'))

     .back('a').addOutE('ECCKT', 'b')

 "mid-traversal V()" b table and .select('a','b').by(id).by(id). gives me values for table a and table b.

But where('a',eq('b')) doesn't give me any match  from a and b? Any idea what can be wrong

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[Pareen Patel]

Thanks Roberts for clearing Traversal concepts in detail.

Thanks