add composite index to gold_table

Author: serichoi65

pkg/postgres/migrations/202509181400_goldTableCompositeIndex/down.go

@@ -0,0 +1,19 @@
+package _202509181400_goldTableCompositeIndex
+
+import (
+	"database/sql"
+
+	"github.com/Layr-Labs/sidecar/internal/config"
+	"gorm.io/gorm"
+)
+
+func (m *Migration) Down(db *sql.DB, grm *gorm.DB, cfg *config.Config) error {
+	// Drop the composite index
+	query := `drop index if exists idx_gold_table_composite;`
+
+	res := grm.Exec(query)
+	if res.Error != nil {
+		return res.Error
+	}
+	return nil
+}

pkg/postgres/migrations/202509181400_goldTableCompositeIndex/up.go

@@ -0,0 +1,26 @@
+package _202509181400_goldTableCompositeIndex
+
+import (
+	"database/sql"
+
+	"github.com/Layr-Labs/sidecar/internal/config"
+	"gorm.io/gorm"
+)
+
+type Migration struct {
+}
+
+func (m *Migration) Up(db *sql.DB, grm *gorm.DB, cfg *config.Config) error {
+	// Create composite index optimized for the FetchRewardsForSnapshot query
+	query := `create index concurrently if not exists idx_gold_table_composite on gold_table (snapshot, reward_hash, earner, token);`
+
+	res := grm.Exec(query)
+	if res.Error != nil {
+		return res.Error
+	}
+	return nil
+}
+
+func (m *Migration) GetName() string {
+	return "202509181400_goldTableCompositeIndex"
+}

pkg/postgres/migrations/migrator.go

@@ -81,6 +81,7 @@ import (
 	_202506172149_snapshotUniqueConstraintsPartTwo "github.com/Layr-Labs/sidecar/pkg/postgres/migrations/202506172149_snapshotUniqueConstraintsPartTwo"
 	_202507301346_taskMailboxTables "github.com/Layr-Labs/sidecar/pkg/postgres/migrations/202507301346_taskMailboxTables"
 	_202507301421_crossChainRegistryTables "github.com/Layr-Labs/sidecar/pkg/postgres/migrations/202507301421_crossChainRegistryTables"
+	_202509181400_goldTableCompositeIndex "github.com/Layr-Labs/sidecar/pkg/postgres/migrations/202509181400_goldTableCompositeIndex"
 )
 
 // Migration interface defines the contract for database migrations.
@@ -203,6 +204,7 @@ func (m *Migrator) MigrateAll() error {
 		&_202502180836_snapshotUniqueConstraints.Migration{},
 		&_202503051449_addContractTypeColumn.Migration{},
 		&_202503311108_goldRewardHashIndex.Migration{},
+		&_202509181400_goldTableCompositeIndex.Migration{},
 		&_202501241322_operatorDirectedOperatorSetRewardSubmissions.Migration{},
 		&_202501241533_operatorSetSplits.Migration{},
 		&_202501271727_operatorSetOperatorRegistrations.Migration{},