Add BLOCK_POSITION_NOT_NULL argument convention#18035
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dain merged 4 commits intotrinodb:masterfrom Jun 29, 2023
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electrum
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Jun 28, 2023
core/trino-spi/src/main/java/io/trino/spi/function/ScalarFunctionAdapter.java
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core/trino-spi/src/main/java/io/trino/spi/function/ScalarFunctionAdapter.java
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core/trino-spi/src/main/java/io/trino/spi/function/ScalarFunctionAdapter.java
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core/trino-spi/src/main/java/io/trino/spi/function/ScalarFunctionAdapter.java
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core/trino-spi/src/test/java/io/trino/spi/function/TestScalarFunctionAdapter.java
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core/trino-main/src/main/java/io/trino/metadata/PolymorphicScalarFunctionBuilder.java
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core/trino-main/src/main/java/io/trino/operator/scalar/ChoicesSpecializedSqlScalarFunction.java
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...-main/src/main/java/io/trino/operator/scalar/annotations/ParametricScalarImplementation.java
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Maybe split out the map and row type changes, since they're more substantial
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I split out the map change, but the row changes are pretty simple
core/trino-spi/src/main/java/io/trino/spi/type/TypeOperatorDeclaration.java
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Description
When function are declared with the
@BlockPositionargument convention the argument is not nullable unless the@SqlNullableis also present, but when calling a function with theBLOCK_POSITIONthe system checks if the position is null. This check is not needed in most cases, because the caller already handles nulls explicitly. The PR adds a new calling conventionBLOCK_POSITION_NOT_NULLwhich tells the function system that the caller will not call the function with a null position, which allows for more efficient function calls.Additionally, the internal
@NullablePositionannotation has been replaced with the existing@SqlNullableSPI annotation.Release notes
(X) Release notes are required, with the following suggested text: