feat: support Spark-compatible abs math function part 2 - ANSI mode #1
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…mode (#18205) ## Which issue does this PR close? <!-- We generally require a GitHub issue to be filed for all bug fixes and enhancements and this helps us generate change logs for our releases. You can link an issue to this PR using the GitHub syntax. For example `Closes #123` indicates that this PR will close issue #123. --> - Part of #15914 ## Rationale for this change <!-- Why are you proposing this change? If this is already explained clearly in the issue then this section is not needed. Explaining clearly why changes are proposed helps reviewers understand your changes and offer better suggestions for fixes. --> - Apache Spark's `abs()` behaves differently than DataFusion. - Apache Spark's [ANSI-compliant](https://spark.apache.org/docs/latest/sql-ref-ansi-compliance.html#ansi-compliance) dialect can be toggled by SparkConf `spark.sql.ansi.enabled`. When ANSI mode is off, arithmetic overflow doesn't throw exception like DataFusion does. - DataFusion Comet can leverage it at apache/datafusion-comet#2595 ## What changes are included in this PR? <!-- There is no need to duplicate the description in the issue here but it is sometimes worth providing a summary of the individual changes in this PR. --> - This is the 1st PR to support non-ANSI mode Spark-compatible `abs` math function - Mimics Apache Spark `v4.0.1` [abs expression](https://github.com/apache/spark/blob/v4.0.1/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala#L148) for numeric types only and non-ANSI mode, i.e. `spark.sql.ansi.enabled=false` ### Tasks breakdown | Non-ANSI mode | ANSI mode | ANSI Interval Types | | - | - | - | | this PR | hsiang-c#1 (will change base branch) | TODO | ## Are these changes tested? <!-- We typically require tests for all PRs in order to: 1. Prevent the code from being accidentally broken by subsequent changes 2. Serve as another way to document the expected behavior of the code If tests are not included in your PR, please explain why (for example, are they covered by existing tests)? --> - unit tests - sqllogictest: `test_files/spark/math/abs.slt` ## Are there any user-facing changes? <!-- If there are user-facing changes then we may require documentation to be updated before approving the PR. --> Yes, the abs function can be specified in the SQL. - Arithmetic overflow will NOT be thrown on arithmetic overflow. <!-- If there are any breaking changes to public APIs, please add the `api change` label. --> --------- Co-authored-by: Oleks V <comphead@users.noreply.github.com>
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Which issue does this PR close?
Rationale for this change
absmath functionWhat changes are included in this PR?
Tasks breakdown
Are these changes tested?
Are there any user-facing changes?
Yes, the abs function can be specified in the SQL.