[CALCITE-7246] UNNEST in Spark should convert to EXPLODE/POSEXPLODE

Author: xiaochen-zhou

core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java

@@ -7834,7 +7834,7 @@ private void checkLiteral2(String expression, String expected) {
         + "FROM (VALUES (0)) AS \"t\" (\"ZERO\"))) WITH ORDINALITY AS \"t0\" (\"col_0\", \"ORDINALITY\")";
     final String expectedSpark = "SELECT *\n"
         + "FROM POSEXPLODE((SELECT ARRAY (1, 2, 3)\n"
-        + "FROM (VALUES (0)) AS `t` (`ZERO`))) AS `t0` (`col_0`, `ORDINALITY`)";
+        + "FROM (VALUES (0)) `t` (`ZERO`))) `t0` (`col_0`, `ORDINALITY`)";
     sql(query)
         .ok(expected)
         .withSpark().ok(expectedSpark);