rdblue commented on a change in pull request #398: Push down StringStartsWith
in Spark IcebergSource
URL: https://github.com/apache/incubator-iceberg/pull/398#discussion_r318191642
##########
File path:
api/src/test/java/org/apache/iceberg/expressions/TestInclusiveMetricsEvaluator.java
##########
@@ -355,4 +390,40 @@ public void testCaseInsensitiveIntegerNotEqRewritten() {
public void testCaseSensitiveIntegerNotEqRewritten() {
boolean shouldRead = new InclusiveMetricsEvaluator(SCHEMA, not(equal("ID",
5)), true).eval(FILE);
}
+
+ @Test
+ public void testStringStartsWith() {
+ boolean shouldRead = new InclusiveMetricsEvaluator(SCHEMA,
startsWith("required", "a"), true).eval(FILE);
+ Assert.assertTrue("Should read: no stats", shouldRead);
+
+ shouldRead = new InclusiveMetricsEvaluator(SCHEMA, startsWith("required",
"a"), true).eval(FILE_2);
+ Assert.assertTrue("Should read: range matches", shouldRead);
+
+ shouldRead = new InclusiveMetricsEvaluator(SCHEMA, startsWith("required",
"aa"), true).eval(FILE_2);
+ Assert.assertTrue("Should read: range matches", shouldRead);
+
+ shouldRead = new InclusiveMetricsEvaluator(SCHEMA, startsWith("required",
"aaa"), true).eval(FILE_2);
+ Assert.assertTrue("Should read: range matches", shouldRead);
+
+ shouldRead = new InclusiveMetricsEvaluator(SCHEMA, startsWith("required",
"1s"), true).eval(FILE_3);
+ Assert.assertTrue("Should read: range matches", shouldRead);
+
+ shouldRead = new InclusiveMetricsEvaluator(SCHEMA, startsWith("required",
"1str1x"), true).eval(FILE_3);
+ Assert.assertTrue("Should read: range matches", shouldRead);
+
+ shouldRead = new InclusiveMetricsEvaluator(SCHEMA, startsWith("required",
"ff"), true).eval(FILE_4);
+ Assert.assertTrue("Should read: range matches", shouldRead);
+
+ shouldRead = new InclusiveMetricsEvaluator(SCHEMA, startsWith("required",
"aB"), true).eval(FILE_2);
Review comment:
Okay, that works for me. You might add a comment to show your intent in the
future, but it's not a big deal here.
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