luoyuxia commented on code in PR #19656:
URL: https://github.com/apache/flink/pull/19656#discussion_r868761997
##########
flink-connectors/flink-connector-hive/src/test/java/org/apache/flink/connectors/hive/HiveDialectITCase.java:
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@@ -807,6 +807,29 @@ public void testShowPartitions() throws Exception {
assertTrue(partitions.toString().contains("dt=2020-04-30
01:02:03/country=china"));
}
+ @Test
+ public void testStatementVariableSubstitution() {
+ // test system variable for substitution
+ System.setProperty("k1", "v1");
+ List<Row> result =
+ CollectionUtil.iteratorToList(
+ tableEnv.executeSql("select
'${system:k1}'").collect());
+ assertEquals("[+I[v1]]", result.toString());
+
+ // test env variable for substitution
+ String classPath = System.getenv("CLASSPATH");
+ result =
+ CollectionUtil.iteratorToList(
+ tableEnv.executeSql("select
'${env:CLASSPATH}'").collect());
+ assertEquals(String.format("[+I[%s]]", classPath), result.toString());
+
+ // test hive conf variable for substitution
+ result =
+ CollectionUtil.iteratorToList(
+ tableEnv.executeSql("select
'${hiveconf:common-key}'").collect());
Review Comment:
Currently, we have no way to dynamically set hiveconf variables in the flink
table api. AFAK, hive only supports set hiveconf variables in cli or init a
hive session with hiveconf variables.
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