chore(x/bank): disable heavy bank migration (#6)

CHANGELOG.md

@@ -44,6 +44,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (baseapp) [#2](https://github.com/01builders/cosmos-sdk/pull/2) Re-add query router for custom abci queries.
 * (x/auth/vesting) [#3](https://github.com/01builders/cosmos-sdk/pull/3) Add start time for continuous vesting accounts.
 * (testing) [#5](https://github.com/01builders/cosmos-sdk/pull/5) Add `MakeTestEncodingConfigWithOpts` to pass `testutil.CodecOptions` when creating `TestEncodingConfig`.
+* (x/bank) [#6](https://github.com/01builders/cosmos-sdk/pull/6) Change denom index bank migration to noOp.
 
 ## [v0.50.11](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.50.11) - 2024-12-16
 

README.md

@@ -5,6 +5,8 @@ The fork include the following changes compared to upstream:
 
 * Store app version in consensus param store
 * Modify continuous vesting account to add start time 
-* Re-add query router for custom abci queries.
+* Re-add query router for custom abci queries
+* Add v0.52 helpers to facilitate testing
+* Disable heavy bank migrations
 
 Read the [CHANGELOG.md](CHANGELOG.md) for more details.

x/bank/keeper/migrations.go

@@ -4,7 +4,6 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/bank/exported"
 	v2 "github.com/cosmos/cosmos-sdk/x/bank/migrations/v2"
-	v3 "github.com/cosmos/cosmos-sdk/x/bank/migrations/v3"
 	v4 "github.com/cosmos/cosmos-sdk/x/bank/migrations/v4"
 	"github.com/cosmos/cosmos-sdk/x/bank/types"
 )
@@ -27,7 +26,8 @@ func (m Migrator) Migrate1to2(ctx sdk.Context) error {
 
 // Migrate2to3 migrates x/bank storage from version 2 to 3.
 func (m Migrator) Migrate2to3(ctx sdk.Context) error {
-	return v3.MigrateStore(ctx, m.keeper.storeService, m.keeper.cdc)
+	return nil // Disable heavy denom index migration
+	// return v3.MigrateStore(ctx, m.keeper.storeService, m.keeper.cdc)
 }
 
 // Migrate3to4 migrates x/bank storage from version 3 to 4.