DOYUNG YOON created S2GRAPH-222:
-----------------------------------
Summary: Support Not logical operator in WhereParser.
Key: S2GRAPH-222
URL: https://issues.apache.org/jira/browse/S2GRAPH-222
Project: S2Graph
Issue Type: New Feature
Components: s2core
Reporter: DOYUNG YOON
`And/Or` operator is implemented as a logical operator, but `Not` is not
implemented in WhereParser.
This is illustrated by following examples.
Following query works only because we added hardcoded implementation on `not
in` as predicates.
{noformat}
query {
s2graph {
User(id: 1) {
id
Friends(limit: 10, filter: "friend_name not in
('steamshon')")
}
}
}
{noformat}
I believe implementing `Not` as a logical operator is more general, so below is
my suggestion.
{noformat}
query {
s2graph {
User(id: 1) {
id
Friends(limit: 10, filter: "NOT (friend_name in
('steamshon'))")
}
}
}
{noformat}
In this way, we don't need to implement not case for all predicates, such as
`in`, `between`, `contains`, `eq`.
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