xuzifu666 commented on code in PR #4302:
URL: https://github.com/apache/calcite/pull/4302#discussion_r2041444087
##########
core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java:
##########
@@ -5355,6 +5355,61 @@ private void checkLiteral2(String expression, String
expected) {
.withMysql().ok(expectedMysql);
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6949";>[CALCITE-6949]
+ * ClickHouse not support floor date to
SECOND/MILLISECOND/MICROSECOND/NANOSECOND</a>. */
+ @Test void testFloorClickHouse() {
+ String query = "SELECT floor(\"hire_date\" TO YEAR) FROM \"employee\"";
+ String expectedClickHouse = "SELECT toStartOfYear(`hire_date`)\n"
+ + "FROM `foodmart`.`employee`";
+ sql(query).withClickHouse().ok(expectedClickHouse);
+
+ String query1 = "SELECT floor(\"hire_date\" TO MONTH) FROM \"employee\"";
+ String expectedClickHouse1 = "SELECT toStartOfMonth(`hire_date`)\n"
+ + "FROM `foodmart`.`employee`";
+ sql(query1).withClickHouse().ok(expectedClickHouse1);
+
+ String query2 = "SELECT floor(\"hire_date\" TO WEEK) FROM \"employee\"";
+ String expectedClickHouse2 = "SELECT toMonday(`hire_date`)\n"
Review Comment:
Yes, this toMonday code just a test for previous code and seems different
system keep a separate standard. @mihaibudiu
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