diff --git a/internal/arcgen/lang/go/dialect.go b/internal/arcgen/lang/go/dialect.go
index b017e14..cd19c63 100644
--- a/internal/arcgen/lang/go/dialect.go
+++ b/internal/arcgen/lang/go/dialect.go
@@ -7,7 +7,8 @@ import (
 	"github.com/kunitsucom/arcgen/internal/config"
 )
 
-func columnValuesPlaceholder(columns []string) string {
+//nolint:cyclop
+func columnValuesPlaceholder(columns []string, initialNumber int) string {
 	switch config.Dialect() {
 	case "mysql", "sqlite3":
 		// ?, ?, ?, ...
@@ -15,28 +16,31 @@ func columnValuesPlaceholder(columns []string) string {
 	case "postgres", "cockroach":
 		// $1, $2, $3, ...
 		var s strings.Builder
-		s.WriteString("$1")
-		for i := 2; i <= len(columns); i++ {
-			s.WriteString(", $")
-			s.WriteString(strconv.Itoa(i))
+		for i := range columns {
+			if i > 0 {
+				s.WriteString(", ")
+			}
+			s.WriteString("$" + strconv.Itoa(i+initialNumber))
 		}
 		return s.String()
 	case "spanner":
 		// @column_1, @column_2, @column_3, ...
 		var s strings.Builder
-		s.WriteString("@" + columns[0])
-		for i := 2; i <= len(columns); i++ {
-			s.WriteString(", @")
-			s.WriteString(columns[i-1])
+		for i := range columns {
+			if i > 0 {
+				s.WriteString(", ")
+			}
+			s.WriteString("@" + columns[i])
 		}
 		return s.String()
 	case "oracle":
 		// :column_1, :column_2, :column_3, ...
 		var s strings.Builder
-		s.WriteString(":" + columns[0])
-		for i := 2; i <= len(columns); i++ {
-			s.WriteString(", :")
-			s.WriteString(columns[i-1])
+		for i := range columns {
+			if i > 0 {
+				s.WriteString(", ")
+			}
+			s.WriteString(":" + columns[i])
 		}
 		return s.String()
 	default:
@@ -46,7 +50,7 @@ func columnValuesPlaceholder(columns []string) string {
 }
 
 //nolint:unparam,cyclop
-func whereColumnsPlaceholder(columns []string, op string) string {
+func whereColumnsPlaceholder(columns []string, op string, initialNumber int) string {
 	switch config.Dialect() {
 	case "mysql", "sqlite3":
 		// column1 = ? AND column2 = ? AND column3 = ...
@@ -60,7 +64,7 @@ func whereColumnsPlaceholder(columns []string, op string) string {
 			}
 			s.WriteString(column)
 			s.WriteString(" = $")
-			s.WriteString(strconv.Itoa(i + 1))
+			s.WriteString(strconv.Itoa(i + initialNumber))
 		}
 		return s.String()
 	case "spanner":
diff --git a/internal/arcgen/lang/go/generate_orm_create.go b/internal/arcgen/lang/go/generate_orm_create.go
index 483e937..7ba54ad 100644
--- a/internal/arcgen/lang/go/generate_orm_create.go
+++ b/internal/arcgen/lang/go/generate_orm_create.go
@@ -36,7 +36,7 @@ func generateCREATEContent(astFile *ast.File, arcSrcSet *ARCSourceSet) {
 						Names: []*ast.Ident{{Name: queryName}},
 						Values: []ast.Expr{&ast.BasicLit{
 							Kind:  token.STRING,
-							Value: "`INSERT INTO " + tableName + " (" + strings.Join(columnNames, ", ") + ") VALUES (" + columnValuesPlaceholder(columnNames) + ")`",
+							Value: "`INSERT INTO " + tableName + " (" + strings.Join(columnNames, ", ") + ") VALUES (" + columnValuesPlaceholder(columnNames, 1) + ")`",
 						}},
 					},
 				},
diff --git a/internal/arcgen/lang/go/generate_orm_delete.go b/internal/arcgen/lang/go/generate_orm_delete.go
index cbb527c..41c9987 100644
--- a/internal/arcgen/lang/go/generate_orm_delete.go
+++ b/internal/arcgen/lang/go/generate_orm_delete.go
@@ -41,7 +41,7 @@ func generateDELETEContent(astFile *ast.File, arcSrcSet *ARCSourceSet) {
 						Names: []*ast.Ident{{Name: queryName}},
 						Values: []ast.Expr{&ast.BasicLit{
 							Kind:  token.STRING,
-							Value: "`DELETE FROM " + tableName + " WHERE " + whereColumnsPlaceholder(pkColumnNames, "AND") + "`",
+							Value: "`DELETE FROM " + tableName + " WHERE " + whereColumnsPlaceholder(pkColumnNames, "AND", 1) + "`",
 						}},
 					},
 				},
diff --git a/internal/arcgen/lang/go/generate_orm_read.go b/internal/arcgen/lang/go/generate_orm_read.go
index cb8c8d7..380a209 100644
--- a/internal/arcgen/lang/go/generate_orm_read.go
+++ b/internal/arcgen/lang/go/generate_orm_read.go
@@ -42,7 +42,7 @@ func generateREADContent(astFile *ast.File, arcSrcSet *ARCSourceSet) {
 						Names: []*ast.Ident{{Name: byPKQueryName}},
 						Values: []ast.Expr{&ast.BasicLit{
 							Kind:  token.STRING,
-							Value: "`SELECT " + strings.Join(columnNames, ", ") + " FROM " + tableName + " WHERE " + whereColumnsPlaceholder(pks.ColumnNames(), "AND") + "`",
+							Value: "`SELECT " + strings.Join(columnNames, ", ") + " FROM " + tableName + " WHERE " + whereColumnsPlaceholder(pks.ColumnNames(), "AND", 1) + "`",
 						}},
 					},
 				},
@@ -189,7 +189,7 @@ func generateREADContent(astFile *ast.File, arcSrcSet *ARCSourceSet) {
 							Names: []*ast.Ident{{Name: byHasOneTagQueryName}},
 							Values: []ast.Expr{&ast.BasicLit{
 								Kind:  token.STRING,
-								Value: "`SELECT " + strings.Join(columnNames, ", ") + " FROM " + tableName + " WHERE " + whereColumnsPlaceholder(hasOneColumns.ColumnNames(), "AND") + "`",
+								Value: "`SELECT " + strings.Join(columnNames, ", ") + " FROM " + tableName + " WHERE " + whereColumnsPlaceholder(hasOneColumns.ColumnNames(), "AND", 1) + "`",
 							}},
 						},
 					},
@@ -354,7 +354,7 @@ func generateREADContent(astFile *ast.File, arcSrcSet *ARCSourceSet) {
 							Names: []*ast.Ident{{Name: byHasOneTagQueryName}},
 							Values: []ast.Expr{&ast.BasicLit{
 								Kind:  token.STRING,
-								Value: "`SELECT " + strings.Join(columnNames, ", ") + " FROM " + tableName + " WHERE " + whereColumnsPlaceholder(hasManyColumns.ColumnNames(), "AND") + "`",
+								Value: "`SELECT " + strings.Join(columnNames, ", ") + " FROM " + tableName + " WHERE " + whereColumnsPlaceholder(hasManyColumns.ColumnNames(), "AND", 1) + "`",
 							}},
 						},
 					},
diff --git a/internal/arcgen/lang/go/generate_orm_update.go b/internal/arcgen/lang/go/generate_orm_update.go
index 681045c..8b55e38 100644
--- a/internal/arcgen/lang/go/generate_orm_update.go
+++ b/internal/arcgen/lang/go/generate_orm_update.go
@@ -42,7 +42,7 @@ func generateUPDATEContent(astFile *ast.File, arcSrcSet *ARCSourceSet) {
 						Names: []*ast.Ident{{Name: queryName}},
 						Values: []ast.Expr{&ast.BasicLit{
 							Kind:  token.STRING,
-							Value: "`UPDATE " + tableName + " SET (" + strings.Join(nonPKColumnNames, ", ") + ") = (?" + strings.Repeat(", ?", len(nonPKColumns)-1) + ") WHERE " + whereColumnsPlaceholder(pkColumns.ColumnNames(), "AND") + "`",
+							Value: "`UPDATE " + tableName + " SET (" + strings.Join(nonPKColumnNames, ", ") + ") = (" + columnValuesPlaceholder(nonPKColumnNames, 1) + ") WHERE " + whereColumnsPlaceholder(pkColumns.ColumnNames(), "AND", len(nonPKColumnNames)+1) + "`",
 						}},
 					},
 				},