integration temporal db

.github/ISSUE_TEMPLATE/question.md

@@ -6,4 +6,4 @@ labels: 'type:docs'
 assignees: ''
 ---
 
-This should only be used in very rare cases e.g. if you are not 100% sure if something is a bug or asking a question that leads to improving the documentation. For general questions please use [Erigon's discord](https://discord.gg/hQ2dxbNZ).
+This should only be used in very rare cases e.g. if you are not 100% sure if something is a bug or asking a question that leads to improving the documentation. For general questions please use [Erigon's discord](https://github.com/ledgerwatch/erigon#erigon-discord-server).

cmd/integration/commands/root.go

@@ -1,11 +1,17 @@
 package commands
 
 import (
+	"context"
 	"path/filepath"
 
 	"github.com/c2h5oh/datasize"
 	"github.com/ledgerwatch/erigon-lib/kv"
+	"github.com/ledgerwatch/erigon-lib/kv/kvcfg"
 	kv2 "github.com/ledgerwatch/erigon-lib/kv/mdbx"
+	"github.com/ledgerwatch/erigon/core/state/historyv2read"
+	"github.com/ledgerwatch/erigon/core/state/temporal"
+	"github.com/ledgerwatch/erigon/core/systemcontracts"
+	"github.com/ledgerwatch/erigon/core/types/accounts"
 	"github.com/ledgerwatch/log/v3"
 	"github.com/spf13/cobra"
 	"github.com/torquem-ch/mdbx-go/mdbx"
@@ -74,5 +80,28 @@ func openDB(opts kv2.MdbxOpts, applyMigrations bool) kv.RwDB {
 			db = opts.MustOpen()
 		}
 	}
+
+	if opts.GetLabel() == kv.ChainDB {
+		var h3 bool
+		var err error
+		if err := db.View(context.Background(), func(tx kv.Tx) error {
+			h3, err = kvcfg.HistoryV3.Enabled(tx)
+			if err != nil {
+				return err
+			}
+			return nil
+		}); err != nil {
+			panic(err)
+		}
+		if h3 {
+			_, agg := allSnapshots(context.Background(), db)
+			tdb, err := temporal.New(db, agg, accounts.ConvertV3toV2, historyv2read.RestoreCodeHash, accounts.DecodeIncarnationFromStorage, systemcontracts.SystemContractCodeLookup[chain])
+			if err != nil {
+				panic(err)
+			}
+			db = tdb
+		}
+	}
+
 	return db
 }