2022-08-05 06:11:52 +00:00
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#include <Functions/FunctionFactory.h>
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#include "FunctionsUniqTheta.h"
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#if USE_DATASKETCHES
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namespace DB
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{
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REGISTER_FUNCTION(UniqTheta)
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{
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2022-09-01 11:31:01 +00:00
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factory.registerFunction<FunctionUniqThetaIntersect>(
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{
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R"(
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Two uniqThetaSketch objects to do intersect calculation(set operation ∩), the result is a new uniqThetaSketch.
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A uniqThetaSketch object is to be constructed by aggregation function uniqTheta with -State.
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UniqThetaSketch is a data structure storage of approximate values set.
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For more information on RoaringBitmap, see: [Theta Sketch Framework](https://datasketches.apache.org/docs/Theta/ThetaSketchFramework.html).
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Typical usage:
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[example:typical]
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)",
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Documentation::Examples{
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{"typical", "select finalizeAggregation(uniqThetaIntersect(arrayReduce('uniqThetaState',[1,2]), arrayReduce('uniqThetaState',[2,3,4])));"}},
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Documentation::Categories{"uniqTheta"}
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});
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factory.registerFunction<FunctionUniqThetaUnion>(
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{
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R"(
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Two uniqThetaSketch objects to do union calculation(set operation ∪), the result is a new uniqThetaSketch.
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A uniqThetaSketch object is to be constructed by aggregation function uniqTheta with -State.
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UniqThetaSketch is a data structure storage of approximate values set.
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For more information on RoaringBitmap, see: [Theta Sketch Framework](https://datasketches.apache.org/docs/Theta/ThetaSketchFramework.html).
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Typical usage:
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[example:typical]
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)",
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Documentation::Examples{
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{"typical", "select finalizeAggregation(uniqThetaUnion(arrayReduce('uniqThetaState',[1,2]), arrayReduce('uniqThetaState',[2,3,4])));"}},
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Documentation::Categories{"uniqTheta"}
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});
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factory.registerFunction<FunctionUniqThetaNot>(
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{
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R"(
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Two uniqThetaSketch objects to do a_not_b calculation(set operation ×), the result is a new uniqThetaSketch.
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A uniqThetaSketch object is to be constructed by aggregation function uniqTheta with -State.
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UniqThetaSketch is a data structure storage of approximate values set.
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For more information on RoaringBitmap, see: [Theta Sketch Framework](https://datasketches.apache.org/docs/Theta/ThetaSketchFramework.html).
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Typical usage:
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[example:typical]
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)",
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Documentation::Examples{
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{"typical", "select finalizeAggregation(uniqThetaNot(arrayReduce('uniqThetaState',[1,2]), arrayReduce('uniqThetaState',[2,3,4])));"}},
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Documentation::Categories{"uniqTheta"}
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});
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2022-08-05 06:11:52 +00:00
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}
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}
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#endif
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