anilbash commented on a change in pull request #1859: [CALCITE-3863] Make Truncate/Round return type inference overridable through rel data … URL: https://github.com/apache/calcite/pull/1859#discussion_r394286883
########## File path: core/src/main/java/org/apache/calcite/sql/type/ReturnTypes.java ########## @@ -557,6 +557,32 @@ public int size() { public static final SqlReturnTypeInference NULLABLE_MOD = chain(DECIMAL_MOD_NULLABLE, ARG1_NULLABLE); + public static final SqlReturnTypeInference DECIMAL_TRUNCATE = opBinding -> { + RelDataTypeFactory typeFactory = opBinding.getTypeFactory(); + RelDataType type1 = opBinding.getOperandType(0); + Integer scale = 0; + if (opBinding.getOperandCount() > 1) { + scale = opBinding.getOperandLiteralValue(1, Integer.class); + } + return typeFactory.getTypeSystem().deriveDecimalTruncateType(typeFactory, type1, scale); + }; + + /** + * Type-inference strategy whereby the result type of a call is the decimal + * truncate of two exact numeric operands where at least one of the operands is a + * decimal. + */ + public static final SqlReturnTypeInference DECIMAL_TRUNCATE_NULLABLE = + cascade(DECIMAL_TRUNCATE, SqlTypeTransforms.TO_NULLABLE); + + /** + * Type-inference strategy whereby the result type of a call is Review comment: Added test cases. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services