jiefei30 commented on code in PR #3399:
URL: https://github.com/apache/calcite/pull/3399#discussion_r1336011978
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babel/src/test/java/org/apache/calcite/test/BabelParserTest.java:
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@@ -430,6 +431,23 @@ private void checkParseInfixCast(String sqlType) {
f.sql("DISCARD TEMP").same();
}
+ @Test void testSparkLeftAntiJoin() {
+ final SqlParserFixture f = fixture().withDialect(SparkSqlDialect.DEFAULT);
+ final String sql = "select a.cid, a.cname, count(1) as amount\n"
+ + "from geo.area1 as a\n"
+ + "left anti join (select distinct cid, cname\n"
+ + "from geo.area2\n"
+ + "where cname = 'cityA') as b on a.cid = b.cid\n"
+ + "group by a.cid, a.cname";
+ final String expected = "SELECT A.CID, A.CNAME, COUNT(1) AMOUNT\n"
+ + "FROM GEO.AREA1 A\n"
+ + "LEFT ANTI JOIN (SELECT DISTINCT CID, CNAME\n"
+ + "FROM GEO.AREA2\n"
+ + "WHERE (CNAME = 'cityA')) B ON (A.CID = B.CID)\n"
+ + "GROUP BY A.CID, A.CNAME";
+ f.sql(sql).ok(expected);
Review Comment:
According to
[antlr/grammer](https://github.com/antlr/grammars-v4/tree/master/sql/hive) and
[apache/hive](https://github.com/apache/hive/blob/master/parser/src/java/org/apache/hadoop/hive/ql/parse/HiveParser.g),
`LEFT ANTI JOIN` is also supported in `hive4`, but the `hive2` and `hive3`
are not supported. Should we think that hive also supports this syntax?
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