Upsert Failed for unique data

Issues Dgraph
5

Hi Anand I tried the solution by removing the trigram index but while upserting below mutation still getting aborted error. but this frequency is not constant, like 3 times out of 5 coming aborted.

routine 1 ( failed)

upsert{
	query{
		var(func: eq(product.swidtag,"ph02")) @filter(eq(type_name,"product")){
                product as uid
      }
		var(func: eq(product.swidtag,"Smart Opt2")) @filter(eq(type_name,"product")){
                        child as uid
      }
	}
	mutation {
	 set{ 
		uid(product) <product.swidtag> "ph02" .
		uid(product) <type_name> "product" .
		uid(product) <dgraph.type> "Product" .
		uid(product) <scopes> "m2" .
		uid(child) <product.swidtag> "Smart Opt2" .
		uid(child) <type_name> "product" .
		uid(child) <dgraph.type> "Product" .
		uid(child) <scopes> "m2" .
		uid(child) <product.child> uid(product) . 
	 }
	}
}

==========
routine - 2 ( failed)

upsert{
	query{
		var(func: eq(product.swidtag,"ph03")) @filter(eq(type_name,"product")){
                product as uid
      }
		var(func: eq(product.swidtag,"Smart Opt2")) @filter(eq(type_name,"product")){
                        child as uid
      }
	}
	mutation {
	 set{ 
		uid(product) <product.swidtag> "ph03" .
		uid(product) <type_name> "product" .
		uid(product) <dgraph.type> "Product" .
		uid(product) <scopes> "m2" .
		uid(child) <product.swidtag> "Smart Opt2" .
		uid(child) <type_name> "product" .
		uid(child) <dgraph.type> "Product" .
		uid(child) <scopes> "m2" .
		uid(child) <product.child> uid(product) . 
	 }
	}
}

==============

routine -3 ( failed)

upsert{
	query{
		var(func: eq(product.swidtag,"ph09")) @filter(eq(type_name,"product")){
                product as uid
      }
		var(func: eq(product.swidtag,"Smart Opt2")) @filter(eq(type_name,"product")){
                        child as uid
      }
	}
	mutation {
	 set{ 
		uid(product) <product.swidtag> "ph09" .
		uid(product) <type_name> "product" .
		uid(product) <dgraph.type> "Product" .
		uid(product) <scopes> "m2" .
		uid(child) <product.swidtag> "Smart Opt2" .
		uid(child) <type_name> "product" .
		uid(child) <dgraph.type> "Product" .
		uid(child) <scopes> "m2" .
		uid(child) <product.child> uid(product) . 
	 }
	}
}

I have removed trigram, but still getting transaction aborted for these. In mutations I have added conditional upsert also via checking the length of the node then only mutate,[@if(eq(len(child),0)].

And sometimes it works fine but sometimes not. Here the child of a node is the same for all three products.