mihaibudiu commented on code in PR #4110:
URL: https://github.com/apache/calcite/pull/4110#discussion_r1896236097
##########
core/src/test/resources/sql/misc.iq:
##########
@@ -18,7 +18,75 @@
!use post
!set outputformat mysql
-# Compared by casting varchar to number
+SELECT UUID '123e4567-e89b-12d3-a456-426655440000';
++--------------------------------------+
+| EXPR$0 |
++--------------------------------------+
+| 123e4567-e89b-12d3-a456-426655440000 |
++--------------------------------------+
+(1 row)
+
+!ok
+
+SELECT CAST('123e4567-e89b-12d3-a456-426655440000' AS UUID);
++--------------------------------------+
+| EXPR$0 |
++--------------------------------------+
+| 123e4567-e89b-12d3-a456-426655440000 |
++--------------------------------------+
+(1 row)
+
+!ok
+
+SELECT CAST('123e4567e89b12d3a456426655440000' AS UUID);
+java.lang.IllegalArgumentException: Invalid UUID string:
123e4567e89b12d3a456426655440000
+!error
+
+SELECT CAST(UUID '123e4567-e89b-12d3-a456-426655440000' AS VARCHAR);
++--------------------------------------+
+| EXPR$0 |
++--------------------------------------+
+| 123e4567-e89b-12d3-a456-426655440000 |
++--------------------------------------+
+(1 row)
+
+!ok
+
+SELECT CAST(UUID '123e4567-e89b-12d3-a456-426655440000' AS VARBINARY);
++----------------------------------+
+| EXPR$0 |
++----------------------------------+
+| d3129be867453e1200004455664256a4 |
++----------------------------------+
+(1 row)
+
+!ok
+
+SELECT CAST(x'd3129be867453e1200004455664256a4' AS UUID);
++--------------------------------------+
+| EXPR$0 |
++--------------------------------------+
+| 123e4567-e89b-12d3-a456-426655440000 |
++--------------------------------------+
+(1 row)
+
+!ok
+
+SELECT CAST(x'00' AS UUID);
+java.lang.IllegalArgumentException: Need at least 16 bytes for UUID
+!error
+
+SELECT UUID '123e4567-e89b-12d3-a456-426655440000' =
'123e4567-e89b-12d3-a456-426655440000';
++--------+
+| EXPR$0 |
++--------+
+| true |
++--------+
+(1 row)
+
+!ok
+
+# Compare varchar to number
Review Comment:
Yes, I wrote that in a recent PR as well. Clearly, this must be an implicit
cast. I can restore that part, but the phrasing wasn't very good.
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