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replace UNION with UNION ALL in chained search query (#3715)

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JasonRoberts-smile 2022-06-17 12:10:21 -04:00 committed by GitHub
parent 4fbbf4366c
commit a18c83ae13
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2 changed files with 5 additions and 1 deletions
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4
hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_1_0/3714-improve-chained-search-performance.yaml Normal file
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@ -0,0 +1,4 @@
type: perf
issue: 3714
jira: SMILE-4484
title: "Chained searches have been sped up for configurations where the `Index Contained Resources` feature is enabled."

2
hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/search/builder/QueryStack.java
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@ -933,7 +933,7 @@ public class QueryStack {
EnumSet<PredicateBuilderTypeEnum> cachedReusePredicateBuilderTypes = EnumSet.copyOf(myReusePredicateBuilderTypes);
myReusePredicateBuilderTypes.clear();
UnionQuery union = new UnionQuery(SetOperationQuery.Type.UNION);
UnionQuery union = new UnionQuery(SetOperationQuery.Type.UNION_ALL);
ReferenceChainExtractor chainExtractor = new ReferenceChainExtractor();
chainExtractor.deriveChains(theResourceName, theSearchParam, theList);