gf2121 opened a new issue, #12028:
URL: https://github.com/apache/lucene/issues/12028
### Description
Today `TermInSetQuery` can be rewritten to disjunction BooleanQuery to
lazily materialize query result if terms count < 16. This can significantly
improve query performance in cases like `selective_clause AND
low_cardinality_field in (xxx) `.
Recently we added IntField, LongField, FloatField, DoubleField to index
both with points and doc values
(https://github.com/apache/lucene/issues/11199). `xxxField#newExactQuery` now
can take advantage of `IndexOrDocValuesQuery` to match with DocValues when
there is a selective conjunction clause. I wonder if we can have
`xxxField#newSetQuery` that generates disjunction BooleanQuery when points
count < 16 ?
For example:
```
public static Query newSetQuery(String field, long... values) {
if (values.length < 16) {
BooleanQuery.Builder builder = new BooleanQuery.Builder();
for (long value: values) {
builder.add(newExactQuery(field, value), Occur.FILTER);
}
return builder.build();
}
return LongPoint.newSetQuery(field, values);
}
```
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