Hoss Man created SOLR-8977:
------------------------------
Summary: graph qparser's traversalFilter doesn't support pure
negative queries
Key: SOLR-8977
URL: https://issues.apache.org/jira/browse/SOLR-8977
Project: Solr
Issue Type: Bug
Reporter: Hoss Man
discovered this while trying to document the parser...
{code}
bin/solr -e techproducts
...
# basic graph walk works
curl
'http://localhost:8983/solr/techproducts/query?rows=20&fl=id,manu_id_s&q=\{!graph+from=id+to=manu_id_s\}id:0579B002'
{
"responseHeader":{
"status":0,
"QTime":0,
"params":{
"q":"{!graph from=id to=manu_id_s}id:0579B002",
"fl":"id,manu_id_s",
"rows":"20"}},
"response":{"numFound":2,"start":0,"docs":[
{
"id":"0579B002",
"manu_id_s":"canon"},
{
"id":"canon"}]
}}
# pure negative traversalFilter (that should match all docs since field is
bogus) actaully prevents any walking from happening
curl
'http://localhost:8983/solr/techproducts/query?rows=20&fl=id,manu_id_s&q=\{!graph+from=id+to=manu_id_s+traversalFilter=%22-bogus_field_s:1%22\}id:0579B002'
{
"responseHeader":{
"status":0,
"QTime":0,
"params":{
"q":"{!graph from=id to=manu_id_s
traversalFilter=\"-bogus_field_s:1\"}id:0579B002",
"fl":"id,manu_id_s",
"rows":"20"}},
"response":{"numFound":1,"start":0,"docs":[
{
"id":"0579B002",
"manu_id_s":"canon"}]
}}
# adding a match all docs to the traversalFilter to make it an explicitly
positive query gets things working again
curl
'http://localhost:8983/solr/techproducts/query?rows=20&fl=id,manu_id_s&q=\{!graph+from=id+to=manu_id_s+traversalFilter=%22*:*%20-bogus_field_s:1%22\}id:0579B002'
{
"responseHeader":{
"status":0,
"QTime":0,
"params":{
"q":"{!graph from=id to=manu_id_s traversalFilter=\"*:*
-bogus_field_s:1\"}id:0579B002",
"fl":"id,manu_id_s",
"rows":"20"}},
"response":{"numFound":2,"start":0,"docs":[
{
"id":"0579B002",
"manu_id_s":"canon"},
{
"id":"canon"}]
}}
{code}
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