danny0405 commented on a change in pull request #1066: [CALCITE-2843] Babel
parser should support PostgreSQL casting operator '::'
URL: https://github.com/apache/calcite/pull/1066#discussion_r300819435
##########
File path: babel/src/test/java/org/apache/calcite/test/BabelTest.java
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@@ -51,6 +57,18 @@ static Connection connect() throws SQLException {
@Test public void testFoo() {
assertThat(1 + 1, is(2));
}
+
+ @Test public void testPostgreSQLCastingOp() throws SQLException {
+ Connection connection = connect();
+ Statement statement = connection.createStatement();
+ assertTrue(statement
+ .execute("SELECT x::integer FROM (VALUES ('1', '2')) as tbl(x,y)"));
+ ResultSet resultSet = statement.getResultSet();
+
+ ResultSetMetaData metaData = resultSet.getMetaData();
+ assertEquals("Invalid column count", 1, metaData.getColumnCount());
+ assertEquals("Invalid column type", Types.INTEGER,
metaData.getColumnType(1));
+ }
Review comment:
Add enough test
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