Replace TypedSet with new BlockSet #18034
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Can we use BlockSet instead of TypedSet in DynamicFilterSourceOperator as well ? We have a JMH benchmark BenchmarkDynamicFilterSourceOperator available to see if it improves perf. |
electrum
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Jun 26, 2023
core/trino-main/src/main/java/io/trino/operator/scalar/ArrayExceptFunction.java
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core/trino-main/src/main/java/io/trino/operator/scalar/BlockSet.java
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core/trino-main/src/main/java/io/trino/operator/scalar/BlockSet.java
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No, but I have a branch that rewrites that part that I'll be putting up for review soon |
electrum
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Jun 26, 2023
core/trino-main/src/main/java/io/trino/operator/scalar/BlockSet.java
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core/trino-main/src/main/java/io/trino/operator/scalar/BlockSet.java
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BlockSet does not copy values out of the input blocks, and instead a direct reference is kept. This improves performance for cases where the set is a temporary data structure.
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Description
BlockSetdoes not copy values out of the input blocks, and instead a direct reference is kept. This improves performance for cases where the set is a temporary data structure.Most uses of
TypedSetcan be replaced withBlockSet, because the set is used in a single lexical scope.Release notes
(x) This is not user-visible or docs only and no release notes are required.