johnkerl · cobyfrombrooklyn-bot · Feb 23, 2026
diff --git a/pkg/transformers/stats1.go b/pkg/transformers/stats1.go
@@ -578,7 +578,9 @@ func (tr *TransformerStats1) ingestWithValueFieldRegexes(
 				// The accumulator has been initialized with default values;
 				// continue here. (If we were to continue outside of this loop
 				// we would be failing to construct the accumulator.)
-				continue
+				if accumulatorName != "null_count" {
+					continue
+				}
 			}
 			namedAccumulator.Ingest(valueFieldValue)
 		}

diff --git a/test/cases/verb-stats1-regexed-field-names/0008/cmd b/test/cases/verb-stats1-regexed-field-names/0008/cmd
@@ -0,0 +1 @@
+mlr --icsv --ifs "|" --oxtab stats1 -a null_count --fr ".*" test/input/null-count-pipe.csv
diff --git a/test/cases/verb-stats1-regexed-field-names/0008/experr b/test/cases/verb-stats1-regexed-field-names/0008/experr
diff --git a/test/cases/verb-stats1-regexed-field-names/0008/expout b/test/cases/verb-stats1-regexed-field-names/0008/expout
@@ -0,0 +1,4 @@
+Id_null_count         0
+Type_null_count       3
+Other Type_null_count 1
+Number_null_count     0
diff --git a/test/input/null-count-pipe.csv b/test/input/null-count-pipe.csv
@@ -0,0 +1,4 @@
+Id|Type|Other Type|Number
+a||foo|1
+b||bar|2
+c|||1
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		mlr --icsv --ifs "\|" --oxtab stats1 -a null_count --fr ".*" test/input/null-count-pipe.csv