caicancai commented on code in PR #3890:
URL: https://github.com/apache/calcite/pull/3890#discussion_r1697806954
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arrow/src/test/java/org/apache/calcite/adapter/arrow/ArrowAdapterTest.java:
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@@ -518,6 +518,56 @@ static void initializeArrowState(@TempDir Path
sharedTempDir) throws IOException
.explainContains(plan);
}
+ @Test void testDecimalProject() {
+ String sql = "select SAL from EMP";
+ String plan = "PLAN=ArrowToEnumerableConverter\n"
+ + " ArrowProject(SAL=[$5])\n"
+ + " ArrowTableScan(table=[[ARROW, EMP]], fields=[[0, 1, 2, 3, 4, 5,
6, 7]])\n\n";
+ String result = "SAL=800.00\n"
+ + "SAL=1600.00\n"
+ + "SAL=1250.00\n";
+ CalciteAssert.that()
+ .with(arrow)
+ .query(sql)
+ .limit(3)
+ .returns(result)
+ .explainContains(plan);
+ }
+
+ @Test void testCastDecimalToSmallInt() {
+ String sql = "select CAST(LOSAL AS SMALLINT) from SALGRADE";
+ String plan =
+ "PLAN=EnumerableCalc(expr#0..2=[{inputs}],
expr#3=[CAST($t1):SMALLINT], EXPR$0=[$t3])\n"
+ + " ArrowToEnumerableConverter\n"
+ + " ArrowTableScan(table=[[ARROW, SALGRADE]], fields=[[0, 1,
2]])\n\n";
+ String result = "EXPR$0=700\n";
+
+ CalciteAssert.that()
+ .with(arrow)
+ .query(sql)
+ .typeIs("[EXPR$0 SMALLINT]")
+ .limit(1)
+ .returns(result)
+ .explainContains(plan);
+ }
+
+ @Test void testCastDecimalToTinyInt() {
Review Comment:
I noticed that there are similar tests, such as testCastDecimalToInt. I
don't know how this test is related to pushdown. I would be grateful if you can
answer my doubts.
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