xuzifu666 commented on code in PR #4886:
URL: https://github.com/apache/calcite/pull/4886#discussion_r3090425939
##########
arrow/src/test/java/org/apache/calcite/adapter/arrow/ArrowAdapterTest.java:
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@@ -1167,4 +1109,88 @@ static void initializeArrowState(@TempDir Path
sharedTempDir)
.returns(result)
.explainContains(plan);
}
+
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-7472";>[CALCITE-7472]
+ * Arrow adapter should support like operator push down</a>. */
+ @Test void testArrowProjectFieldsWithLikePrefixFilter() {
Review Comment:
Currently, no third-party tools have been used for verification, my view is
that the test data is in the standard Apache Arrow IPC file format, and the
test results are correct. This may indirectly prove that the plan is correct.
In addition, I also checked the registration of the gandiva function, which
shows that the like statement supports pushdown (see
reference:https://github.com/apache/arrow/blob/main/cpp/src/gandiva/function_registry_string.cc#L210).
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