ttljob: use COLLATED STRING in TestRowLevelTTLJobRandomEntries

In a recently merged change where we prohibited usage of CITEXT type in
the mixed-version state in `TestRowLevelTTLJobRandomEntries`, I made the
mistake of also excluding non-CITEXT COLLATED STRING type. This is now
fixed.

Additionally, fix a typo in the comment from another change.

Release note: None

Author: yuzefovich

pkg/sql/delete_range.go

@@ -204,8 +204,8 @@ func (d *deleteRangeNode) processResults(
 			// Make a copy of curRowPrefix to avoid referencing the memory from
 			// the now-old BatchRequest.
 			//
-			// When auto-commit is enabled, we expect to see any resume spans,
-			// so we won't need to access d.curRowPrefix later.
+			// When auto-commit is enabled, we expect to not see any resume
+			// spans, so we won't need to access d.curRowPrefix later.
 			curRowPrefix := make([]byte, len(d.curRowPrefix))
 			copy(curRowPrefix, d.curRowPrefix)
 			d.curRowPrefix = curRowPrefix

pkg/sql/ttl/ttljob/ttljob_test.go

@@ -692,29 +692,33 @@ func TestRowLevelTTLJobRandomEntries(t *testing.T) {
 		if !colinfo.ColumnTypeIsIndexable(typ) {
 			continue
 		}
-		switch typ.Family() {
-		case types.DateFamily:
-		// TODO(#76419): DateFamily has a broken `-infinity` case.
-		case types.JsonFamily:
-		// TODO(#99432): JsonFamily has broken cases. This is because the
-		// test is wrapping JSON objects in multiple single quotes which
-		// causes parsing errors.
-		case types.CollatedStringFamily:
-			if typ.Oid() != oidext.T_citext && typ.Oid() != oidext.T__citext {
-				if int(clusterversion.MinSupported) >= int(clusterversion.V25_3) {
+		ok := func() bool {
+			switch typ.Family() {
+			case types.DateFamily:
+				// TODO(#76419): DateFamily has a broken `-infinity` case.
+				return false
+			case types.JsonFamily:
+				// TODO(#99432): JsonFamily has broken cases. This is because the
+				// test is wrapping JSON objects in multiple single quotes which
+				// causes parsing errors.
+				return false
+			case types.CollatedStringFamily:
+				if typ.Oid() == oidext.T_citext || typ.Oid() == oidext.T__citext {
 					// CITEXT is only supported in 25.3+, so if we happen to run
 					// the test in the mixed version variant, we can't use the
 					// type.
-					indexableTyps = append(indexableTyps, typ)
+					return int(clusterversion.MinSupported) >= int(clusterversion.V25_3)
 				}
-			}
-		case types.LTreeFamily:
-			if int(clusterversion.MinSupported) >= int(clusterversion.V25_4) {
+				return true
+			case types.LTreeFamily:
 				// LTREE is only supported in 25.4+, so if we happen to run the
 				// test in the mixed version variant, we can't use the type.
-				indexableTyps = append(indexableTyps, typ)
+				return int(clusterversion.MinSupported) >= int(clusterversion.V25_4)
+			default:
+				return true
 			}
-		default:
+		}()
+		if ok {
 			indexableTyps = append(indexableTyps, typ)
 		}
 	}