mihaibudiu commented on code in PR #4290:
URL: https://github.com/apache/calcite/pull/4290#discussion_r2037930160


##########
core/src/main/java/org/apache/calcite/sql/dialect/ClickHouseSqlDialect.java:
##########
@@ -216,6 +216,24 @@ private static SqlDataTypeSpec 
createSqlDataTypeSpecByName(String typeAlias,
     }
 
     switch (call.getKind()) {
+    case MAP_VALUE_CONSTRUCTOR:
+      writer.print(call.getOperator().getName().toLowerCase(Locale.ROOT));
+      final SqlWriter.Frame mapFrame = writer.startList("(", ")");
+      for (int i = 0; i < call.operandCount(); i++) {
+        writer.sep(",");
+        call.operand(i).unparse(writer, leftPrec, rightPrec);
+      }
+      writer.endList(mapFrame);
+      break;
+    case ARRAY_VALUE_CONSTRUCTOR:
+      writer.print(call.getOperator().getName().toLowerCase(Locale.ROOT));

Review Comment:
   But this discussion does not really matter for the issue at hand.
   If the code you generate is accepted by Clickhouse this is good.



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