Get test to pass

Author: ari-e

pkg/planner/core/casetest/index/BUILD.bazel

@@ -9,7 +9,7 @@ go_test(
     ],
     data = glob(["testdata/**"]),
     flaky = True,
-    shard_count = 5,
+    shard_count = 6,
     deps = [
         "//pkg/testkit",
         "//pkg/testkit/testdata",

pkg/util/ranger/detacher.go

@@ -183,8 +183,14 @@ func getPotentialEqOrInColOffset(sctx *rangerctx.RangerContext, expr expression.
 			}
 		}
 	case ast.IsNull:
-		if _, ok := f.GetArgs()[0].(*expression.Column); ok {
-			return 0
+		c, ok := f.GetArgs()[0].(*expression.Column)
+		if !ok {
+			return -1
+		}
+		for i, col := range cols {
+			if col.EqualColumn(c) {
+				return i
+			}
 		}
 	}
 	return -1

pkg/util/ranger/ranger_test.go

@@ -2228,7 +2228,7 @@ create table t(
 			indexPos:    0,
 			exprStr:     "a is null",
 			accessConds: "[isnull(test.t.a)]",
-			filterConds: "[]",
+			filterConds: "[isnull(test.t.a)]",
 			resultStr:   "[[NULL,NULL]]",
 		},
 		{
@@ -2242,7 +2242,7 @@ create table t(
 			indexPos:    1,
 			exprStr:     "a = 'a' and b is null",
 			accessConds: "[eq(test.t.a, a) isnull(test.t.b)]",
-			filterConds: "[eq(test.t.a, a)]",
+			filterConds: "[eq(test.t.a, a) isnull(test.t.b)]",
 			resultStr:   "[[\"a\" NULL,\"a\" NULL]]",
 		},
 		{
@@ -2256,7 +2256,7 @@ create table t(
 			indexPos:    2,
 			exprStr:     "c is null",
 			accessConds: "[isnull(test.t.c)]",
-			filterConds: "[]",
+			filterConds: "[isnull(test.t.c)]",
 			resultStr:   "[[NULL,NULL]]",
 		},
 		{
@@ -2270,7 +2270,7 @@ create table t(
 			indexPos:    3,
 			exprStr:     "d is null",
 			accessConds: "[isnull(test.t.d)]",
-			filterConds: "[]",
+			filterConds: "[isnull(test.t.d)]",
 			resultStr:   "[[NULL,NULL]]",
 		},
 		{