YiwenWu commented on code in PR #3639:
URL: https://github.com/apache/calcite/pull/3639#discussion_r1460131379
##########
core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java:
##########
@@ -7704,6 +7703,101 @@ private void checkLiteral2(String expression, String
expected) {
sql(query).withSpark().withLibrary(SqlLibrary.SPARK).ok(expectedSql);
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6213";>[CALCITE-6213]
+ * The default behavior of NullCollation in Presto is LAST </a>.
+ */
+ @Test void testNullCollation() {
+ final String query = "select * from \"product\" order by \"brand_name\"";
+ final String expected = "SELECT *\n"
+ + "FROM \"foodmart\".\"product\"\n"
+ + "ORDER BY \"brand_name\"";
+ final String sparkExpected = "SELECT *\n"
Review Comment:
SparkSQL and Presto are commonly used in SQL-on-Hadoop frameworks.
Previously, Presto was set to the value "LOW," which is consistent with Spark.
This test demonstrates the comparative effect of setting null collation to
"LAST."
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
