blob: ce38521325c56c7d648a480714e182273f7ba48d (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/searchlib/fef/blueprint.h>
namespace search::features {
/**
* Feature for the specific replacement of the expression:
*
* reduce(
* join(
* tensorFromLabels(attribute(A)),
* tensorFromWeightedset(query(Q)),
* f(x,y)(x*y)
* ),
* max
* )
*
* where A is an array attribute of int or long type and Q is a query that parses as
* a weighted set. This expression is replaced with this feature to avoid incurring
* the cost of creating temporary tensors.
*/
class InternalMaxReduceProdJoinBlueprint : public fef::Blueprint {
private:
vespalib::string _attribute;
vespalib::string _queryVector;
vespalib::string _attrKey;
vespalib::string _queryVectorKey;
public:
InternalMaxReduceProdJoinBlueprint();
~InternalMaxReduceProdJoinBlueprint() override;
fef::ParameterDescriptions getDescriptions() const override;
fef::Blueprint::UP createInstance() const override;
bool setup(const fef::IIndexEnvironment &env, const fef::ParameterList ¶ms) override;
void prepareSharedState(const fef::IQueryEnvironment & queryEnv, fef::IObjectStore & objectStore) const override;
fef::FeatureExecutor &createExecutor(const fef::IQueryEnvironment &env, vespalib::Stash &stash) const override;
void visitDumpFeatures(const fef::IIndexEnvironment &env, fef::IDumpFeatureVisitor &visitor) const override;
};
}
|