diff --git a/abi2/abi2.go b/abi2/abi2.go
index cd67c732..72501c5a 100644
--- a/abi2/abi2.go
+++ b/abi2/abi2.go
@@ -766,7 +766,25 @@ func (ig Integration) Name() string { return ig.name }
 
 func (ig Integration) Events(context.Context) [][]byte { return [][]byte{} }
 
-func (ig Integration) Delete(context.Context, wpg.Conn, uint64) error { return nil }
+func (ig Integration) Delete(ctx context.Context, pg wpg.Conn, n uint64) error {
+	const q = `
+		delete from %s
+		where src_name = $1
+		and intg_name = $2
+		and block_num >= $3
+	`
+	_, err := pg.Exec(ctx,
+		ig.tname(q),
+		wctx.SrcName(ctx),
+		ig.name,
+		n,
+	)
+	return err
+}
+
+func (ig Integration) tname(query string) string {
+	return fmt.Sprintf(query, ig.Table.Name)
+}
 
 func (ig Integration) Insert(ctx context.Context, pg wpg.Conn, blocks []eth.Block) (int64, error) {
 	var (
diff --git a/e2pg/integration_test.go b/e2pg/integration_test.go
index d85ea298..8ddfbea8 100644
--- a/e2pg/integration_test.go
+++ b/e2pg/integration_test.go
@@ -8,6 +8,7 @@ import (
 
 	"blake.io/pqx/pqxtest"
 	"github.com/indexsupply/x/geth/gethtest"
+	"github.com/indexsupply/x/wctx"
 	"github.com/jackc/pgx/v5/pgxpool"
 	"kr.dev/diff"
 )
@@ -66,12 +67,13 @@ func (th *Helper) Process(dest Destination, n uint64) {
 	var (
 		geth = NewGeth(th.gt.FileCache, th.gt.Client)
 		task = NewTask(
-			WithSource(0, "", geth),
+			WithSource(0, "testhelper", geth),
 			WithPG(th.PG),
 			WithDestinations(dest),
 			WithRange(n, n+1),
 		)
 	)
+	th.ctx = wctx.WithSrcName(th.ctx, "testhelper")
 	cur, err := geth.Hash(n)
 	check(th.tb, err)
 	th.gt.SetLatest(n, cur)
@@ -84,9 +86,10 @@ func TestIntegrations(t *testing.T) {
 	th := NewHelper(t)
 	defer th.Done()
 	cases := []struct {
-		blockNum uint64
-		config   string
-		queries  []string
+		blockNum    uint64
+		config      string
+		queries     []string
+		deleteQuery string
 	}{
 		{
 			17943843,
@@ -95,10 +98,11 @@ func TestIntegrations(t *testing.T) {
 				`
 				select count(*) = 1 from txinput_test
 				where tx_hash = '\x713df81a2ab53db1d01531106fc5de43012a401ddc3e0586d522e5c55a162d42'
-				and block_number = 17943843
+				and block_num = 17943843
 				and block_time = 1692387935
 				`,
 			},
+			"select count(*) = 0 from txinput_test",
 		},
 		{
 			17943843,
@@ -110,6 +114,7 @@ func TestIntegrations(t *testing.T) {
 				and contract = '\x57f1887a8bf19b14fc0df6fd9b2acc9af147ea85'
 				`,
 			},
+			"select count(*) = 0 from erc721_test",
 		},
 		{
 			17943843,
@@ -143,6 +148,7 @@ func TestIntegrations(t *testing.T) {
 				and consideration_recipient = '\x0000a26b00c1f0df003000390027140000faa719'
 				`,
 			},
+			"select count(*) = 0 from seaport_test",
 		},
 	}
 	for _, tc := range cases {
@@ -163,6 +169,14 @@ func TestIntegrations(t *testing.T) {
 				t.Errorf("test %s failed", tc.config)
 			}
 		}
+
+		diff.Test(t, t.Errorf, nil, dest.Delete(th.Context(), th.PG, tc.blockNum))
+		var deleted bool
+		err = th.PG.QueryRow(th.Context(), tc.deleteQuery).Scan(&deleted)
+		diff.Test(t, t.Errorf, nil, err)
+		if !deleted {
+			t.Errorf("%s was not cleaned up after ig.Delete", tc.config)
+		}
 	}
 }
 
diff --git a/e2pg/testdata/txinput.json b/e2pg/testdata/txinput.json
index f63f6198..a29f46df 100644
--- a/e2pg/testdata/txinput.json
+++ b/e2pg/testdata/txinput.json
@@ -4,7 +4,7 @@
 		"name": "txinput_test",
 		"columns": [
 			{"name": "chain_id", "type": "numeric"},
-			{"name": "block_number", "type": "numeric"},
+			{"name": "block_num", "type": "numeric"},
 			{"name": "block_time", "type": "numeric"},
 			{"name": "tx_hash", "type": "bytea"},
 			{"name": "tx_input", "type": "bytea"}
@@ -12,7 +12,7 @@
 	},
 	"block": [
 		{"name": "chain_id", "column": "chain_id"},
-		{"name": "block_num", "column": "block_number"},
+		{"name": "block_num", "column": "block_num"},
 		{"name": "block_time", "column": "block_time"},
 		{"name": "tx_hash", "column": "tx_hash", "filter_op": "contains", "filter_arg": ["713df81a2ab53db1d01531106fc5de43012a401ddc3e0586d522e5c55a162d42"]},
 		{"name": "tx_input", "column": "tx_input"}