test: add SQL file tests for RuntimeReplaceable functions accelerated by Comet#4562
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andygrove wants to merge 1 commit into
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test: add SQL file tests for RuntimeReplaceable functions accelerated by Comet#4562andygrove wants to merge 1 commit into
andygrove wants to merge 1 commit into
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Which issue does this PR close?
N/A. This adds test coverage only. Surfaces #4560.
Rationale for this change
A sweep of
RuntimeReplaceableSpark functions found several that Comet already accelerates (they lower to expressions Comet supports) but which had no test coverage guarding that behavior. These tests pin the acceleration so it cannot silently regress.What changes are included in this PR?
Adds SQL file tests for functions confirmed to run natively in Comet:
conditional/nullif_zeroif.sql-nullifzero,zeroifnull(lower toif/coalesce).MinSparkVersion: 4.0.misc/equal_null.sql-equal_null(lowers to<=>).misc/uniform.sql-uniformwith fixed-seed literal args (lowers toRand-based arithmetic).MinSparkVersion: 4.0.array/array_size.sql-array_size(lowers tosize). The NULL-array case isignored pending array_size returns -1 instead of NULL for NULL input #4560 (returns -1 instead of NULL).array/try_element_at.sql-try_element_atfor arrays (lowers toelement_at); map input falls back (spark_answer_only).string/to_binary.sql-to_binary(x, 'hex')(lowers tounhex); UTF-8/base64 formats fall back (spark_answer_only).string/collation.sql-collation(folds to a literal).MinSparkVersion: 4.0.How are these changes tested?
This PR is test-only. The files run under
CometSqlFileTestSuite, executing each query through both Spark and Comet and comparing results; defaultqueryblocks additionally assert native (non-fallback) execution. Verified locally with./mvnw test -Dsuites="org.apache.comet.CometSqlFileTestSuite" -Dtest=none.