amaliujia commented on a change in pull request #1437: [CALCITE-3318]
Preserving CAST of STRING operands in comparison operator
URL: https://github.com/apache/calcite/pull/1437#discussion_r330299730
##########
File path:
core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java
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@@ -3854,6 +3854,24 @@ private void checkLiteral2(String expression, String
expected) {
sql(expected).exec();
}
+ @Test public void testCastInStringOperandOfComparison() {
+ final String query = "select \"employee_id\" "
+ + "from \"foodmart\".\"employee\" "
+ + "where 10 = cast('10' as int) and \"birth_date\" = cast('1914-02-02'
as date) or "
+ + "\"hire_date\" = cast('1996-01-01 '||'00:00:00' as timestamp)";
+ final String expected = "SELECT \"employee_id\"\n"
+ + "FROM \"foodmart\".\"employee\"\n"
+ + "WHERE 10 = '10' AND \"birth_date\" = '1914-02-02' OR \"hire_date\"
= '1996-01-01 ' || "
+ + "'00:00:00'";
+ final String expectedBiqquery = "SELECT employee_id\n"
+ + "FROM foodmart.employee\n"
+ + "WHERE 10 = CAST('10' AS INTEGER) AND birth_date = '1914-02-02' OR
hire_date = "
Review comment:
Ok. I think this comment is related to CALCITE-3381. The test case here is
expected but it should be fixed by other JIRA.
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