xuzifu666 commented on code in PR #4205:
URL: https://github.com/apache/calcite/pull/4205#discussion_r1963235839
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core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java:
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@@ -8230,24 +8231,55 @@ private void checkLiteral2(String expression, String
expected) {
}
/** Test case for
- * <a
href="https://issues.apache.org/jira/browse/CALCITE-6819";>[CALCITE-6819]
- * MSSQL doesn't support TRUE/FALSE keywords in its Join predicate</a>. */
- @Test void testJoinBoolLiteralMSSQL() {
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6847";>[CALCITE-6847]
+ * Support ClickHouse Dialect with join on Boolean type</a>. */
+ @Test void testJoinBoolLiteral() {
final String queryTrue = "SELECT \"hire_date\", \"department_description\"
FROM \"employee\" "
+ "LEFT JOIN \"department\" ON TRUE";
+ final String queryFalse = "SELECT \"hire_date\",
\"department_description\" FROM \"employee\" "
+ + "LEFT JOIN \"department\" ON False";
+
+ final String queryTrue1 = "SELECT \"hire_date\",
\"department_description\" FROM \"employee\" "
+ + "LEFT JOIN \"department\" ON 1 = 1";
+ final String queryFalse1 = "SELECT \"hire_date\",
\"department_description\" FROM \"employee\" "
+ + "LEFT JOIN \"department\" ON 1 = 0";
+
+ // mssql test
final String mssqlExpected1 = "SELECT [employee].[hire_date],"
+ " [department].[department_description]\nFROM
[foodmart].[employee]\nLEFT JOIN"
+ " [foodmart].[department] ON (1 = 1)";
sql(queryTrue)
.dialect(MssqlSqlDialect.DEFAULT).ok(mssqlExpected1);
+ sql(queryTrue1)
+ .dialect(MssqlSqlDialect.DEFAULT).ok(mssqlExpected1);
+
- final String queryFalse = "SELECT \"hire_date\",
\"department_description\" FROM \"employee\" "
- + "LEFT JOIN \"department\" ON False";
final String mssqlExpected2 = "SELECT [employee].[hire_date],"
+ " [department].[department_description]\nFROM
[foodmart].[employee]\nLEFT JOIN"
+ " [foodmart].[department] ON (1 = 0)";
sql(queryFalse)
.dialect(MssqlSqlDialect.DEFAULT).ok(mssqlExpected2);
+ sql(queryFalse1)
+ .dialect(MssqlSqlDialect.DEFAULT).ok(mssqlExpected2);
+
+ // clickhouse test
+ final String clickhouseExpected1 = "SELECT `employee`.`hire_date`,"
Review Comment:
@NobiGo would error out as:
**select true from system.numbers limit 1;**
Received exception from server (version 21.8.11):
Code: 47. DB::Exception: Received from localhost:9000. DB::Exception:
Missing columns: 'true' while processing query: 'SELECT true FROM
system.numbers LIMIT 1', required columns: 'true'.
but can support select 1=1 from system.numbers limit 1;
**select 1=1 from system.numbers limit 1;**
1
1 rows retrieved starting from 1 in 89 ms (execution: 76 ms, fetching: 13 ms)
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