PaulJackson123 commented on code in PR #3495:
URL: https://github.com/apache/calcite/pull/3495#discussion_r1380313763


##########
core/src/test/java/org/apache/calcite/test/RelMetadataTest.java:
##########
@@ -1141,14 +1141,88 @@ private void 
checkColumnUniquenessForFilterWithConstantColumns(String sql) {
         .assertThatAreColumnsUnique(bitSetOf(0, 1), is(false));
   }
 
+  @Test void testColumnUniquenessForLimit1() {
+    final String sql = ""
+                       + "select *\n"
+                       + "from emp\n"
+                       + "limit 1";

Review Comment:
   I see that it is not consistent. There are quite a few like this in both 
this class and `RelOptRulesTest`. I did make the change everywhere and it was 
mostly fine with one exception - `testPullUpPredicatesFromUnion2`. In that case 
the SQL extends beyond the end of line and requires formatting that, IMO, makes 
it less pleasing.
   
   I'd like to ask how strongly you feel about this one. One argument for 
leaving it as is is it makes all the lines of the SQL start on the same column, 
which I think is nice.
   
   I will fix the issue with too much leading space on lines 1146-1148 and 
elsewhere. I must not have had my Code Style set properly when I wrote these 
tests.



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