grammar

linkedin · Apr 9, 2024 · 2a2d1ea · 2a2d1ea
1 parent 4356109
commit 2a2d1ea
Showing 1 changed file with 3 additions and 4 deletions.
diff --git a/...rc/main/java/com/linkedin/coral/trino/rel2trino/transformers/CastOperatorTransformer.java b/...rc/main/java/com/linkedin/coral/trino/rel2trino/transformers/CastOperatorTransformer.java
@@ -52,12 +52,11 @@
  * Consider the following Hive input query:
  * "SELECT CAST(from_utc_timestamp(a_date, 'America/Los_Angeles') AS DECIMAL(10, 0)) AS d FROM test.table_from_utc_timestamp"
  *
- * We add an `with_timezone` operator in this transformation, and with the added layer of Calcite validation which will
- * implicitly cast the input to `with_timezone` which is a date type to the expected timestamp type.
- * So instead of just:
+ * We add a `with_timezone` operator in this transformation, and with the added layer of Calcite validation, instead
+ * of just getting:
  * "(with_timezone(table_from_utc_timestamp0.a_date), 'UTC')"
  *
- * We get an extra cast from calcite:
+ * We get an extra implicit cast from Calcite on the input to `with_timezone` which is a date type to the expected timestamp type:
  * "(with_timezone(CAST(table_from_utc_timestamp0.a_date AS TIMESTAMP), 'UTC'))"
  */
 public class CastOperatorTransformer extends SqlCallTransformer {