diff --git a/internal/codegen/golang/query.go b/internal/codegen/golang/query.go
index 1168bf6d7a..74d5b9f558 100644
--- a/internal/codegen/golang/query.go
+++ b/internal/codegen/golang/query.go
@@ -12,6 +12,7 @@ type QueryValue struct {
 	Emit        bool
 	EmitPointer bool
 	Name        string
+	DBName      string // The name of the field in the database. Only set if Struct==nil.
 	Struct      *Struct
 	Typ         string
 	SQLDriver   SQLDriver
@@ -116,7 +117,7 @@ func (v QueryValue) Params() string {
 
 func (v QueryValue) ColumnNames() string {
 	if v.Struct == nil {
-		return fmt.Sprintf("[]string{%q}", v.Name)
+		return fmt.Sprintf("[]string{%q}", v.DBName)
 	}
 	escapedNames := make([]string, len(v.Struct.Fields))
 	for i, f := range v.Struct.Fields {
diff --git a/internal/codegen/golang/result.go b/internal/codegen/golang/result.go
index efba759adb..fd7e22bc47 100644
--- a/internal/codegen/golang/result.go
+++ b/internal/codegen/golang/result.go
@@ -166,6 +166,7 @@ func buildQueries(req *plugin.CodeGenRequest, structs []Struct) ([]Query, error)
 			p := query.Params[0]
 			gq.Arg = QueryValue{
 				Name:      paramName(p),
+				DBName:    p.Column.GetName(),
 				Typ:       goType(req, p.Column),
 				SQLDriver: sqlpkg,
 			}
@@ -198,6 +199,7 @@ func buildQueries(req *plugin.CodeGenRequest, structs []Struct) ([]Query, error)
 			}
 			gq.Ret = QueryValue{
 				Name:      name,
+				DBName:    name,
 				Typ:       goType(req, c),
 				SQLDriver: sqlpkg,
 			}
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/copyfrom.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/copyfrom.go
new file mode 100644
index 0000000000..3e5293a8ed
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/copyfrom.go
@@ -0,0 +1,42 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+// source: copyfrom.go
+
+package querytest
+
+import (
+	"context"
+)
+
+// iteratorForCreateAuthors implements pgx.CopyFromSource.
+type iteratorForCreateAuthors struct {
+	rows                 []int32
+	skippedFirstNextCall bool
+}
+
+func (r *iteratorForCreateAuthors) Next() bool {
+	if len(r.rows) == 0 {
+		return false
+	}
+	if !r.skippedFirstNextCall {
+		r.skippedFirstNextCall = true
+		return true
+	}
+	r.rows = r.rows[1:]
+	return len(r.rows) > 0
+}
+
+func (r iteratorForCreateAuthors) Values() ([]interface{}, error) {
+	return []interface{}{
+		r.rows[0],
+	}, nil
+}
+
+func (r iteratorForCreateAuthors) Err() error {
+	return nil
+}
+
+func (q *Queries) CreateAuthors(ctx context.Context, authorID []int32) (int64, error) {
+	return q.db.CopyFrom(ctx, []string{"authors"}, []string{"author_id"}, &iteratorForCreateAuthors{rows: authorID})
+}
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/db.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/db.go
new file mode 100644
index 0000000000..9e04f6e635
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/db.go
@@ -0,0 +1,33 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+
+package querytest
+
+import (
+	"context"
+
+	"github.com/jackc/pgconn"
+	"github.com/jackc/pgx/v4"
+)
+
+type DBTX interface {
+	Exec(context.Context, string, ...interface{}) (pgconn.CommandTag, error)
+	Query(context.Context, string, ...interface{}) (pgx.Rows, error)
+	QueryRow(context.Context, string, ...interface{}) pgx.Row
+	CopyFrom(ctx context.Context, tableName pgx.Identifier, columnNames []string, rowSrc pgx.CopyFromSource) (int64, error)
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx pgx.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/models.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/models.go
new file mode 100644
index 0000000000..293cebc00c
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/models.go
@@ -0,0 +1,11 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+
+package querytest
+
+import ()
+
+type Author struct {
+	AuthorID int32
+}
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/querier.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/querier.go
new file mode 100644
index 0000000000..bd305b90c8
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/querier.go
@@ -0,0 +1,15 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+
+package querytest
+
+import (
+	"context"
+)
+
+type Querier interface {
+	CreateAuthors(ctx context.Context, authorID []int32) (int64, error)
+}
+
+var _ Querier = (*Queries)(nil)
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/query.sql.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/query.sql.go
new file mode 100644
index 0000000000..f4c28047be
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/go/query.sql.go
@@ -0,0 +1,8 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+// source: query.sql
+
+package querytest
+
+import ()
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/query.sql b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/query.sql
new file mode 100644
index 0000000000..b505b6b265
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/query.sql
@@ -0,0 +1,6 @@
+CREATE TABLE authors (
+    author_id SERIAL PRIMARY KEY
+);
+
+-- name: CreateAuthors :copyfrom
+INSERT INTO authors (author_id) VALUES ($1);
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/sqlc.json b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/sqlc.json
new file mode 100644
index 0000000000..2ec707567a
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v4/sqlc.json
@@ -0,0 +1,14 @@
+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "engine": "postgresql",
+      "sql_package": "pgx/v4",
+      "name": "querytest",
+      "schema": "query.sql",
+      "queries": "query.sql",
+      "emit_interface": true
+    }
+  ]
+}
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/copyfrom.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/copyfrom.go
new file mode 100644
index 0000000000..3e5293a8ed
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/copyfrom.go
@@ -0,0 +1,42 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+// source: copyfrom.go
+
+package querytest
+
+import (
+	"context"
+)
+
+// iteratorForCreateAuthors implements pgx.CopyFromSource.
+type iteratorForCreateAuthors struct {
+	rows                 []int32
+	skippedFirstNextCall bool
+}
+
+func (r *iteratorForCreateAuthors) Next() bool {
+	if len(r.rows) == 0 {
+		return false
+	}
+	if !r.skippedFirstNextCall {
+		r.skippedFirstNextCall = true
+		return true
+	}
+	r.rows = r.rows[1:]
+	return len(r.rows) > 0
+}
+
+func (r iteratorForCreateAuthors) Values() ([]interface{}, error) {
+	return []interface{}{
+		r.rows[0],
+	}, nil
+}
+
+func (r iteratorForCreateAuthors) Err() error {
+	return nil
+}
+
+func (q *Queries) CreateAuthors(ctx context.Context, authorID []int32) (int64, error) {
+	return q.db.CopyFrom(ctx, []string{"authors"}, []string{"author_id"}, &iteratorForCreateAuthors{rows: authorID})
+}
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/db.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/db.go
new file mode 100644
index 0000000000..b2afac5b3c
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/db.go
@@ -0,0 +1,33 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+
+package querytest
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+type DBTX interface {
+	Exec(context.Context, string, ...interface{}) (pgconn.CommandTag, error)
+	Query(context.Context, string, ...interface{}) (pgx.Rows, error)
+	QueryRow(context.Context, string, ...interface{}) pgx.Row
+	CopyFrom(ctx context.Context, tableName pgx.Identifier, columnNames []string, rowSrc pgx.CopyFromSource) (int64, error)
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx pgx.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/models.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/models.go
new file mode 100644
index 0000000000..293cebc00c
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/models.go
@@ -0,0 +1,11 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+
+package querytest
+
+import ()
+
+type Author struct {
+	AuthorID int32
+}
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/querier.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/querier.go
new file mode 100644
index 0000000000..bd305b90c8
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/querier.go
@@ -0,0 +1,15 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+
+package querytest
+
+import (
+	"context"
+)
+
+type Querier interface {
+	CreateAuthors(ctx context.Context, authorID []int32) (int64, error)
+}
+
+var _ Querier = (*Queries)(nil)
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/query.sql.go b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/query.sql.go
new file mode 100644
index 0000000000..f4c28047be
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/go/query.sql.go
@@ -0,0 +1,8 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.17.2
+// source: query.sql
+
+package querytest
+
+import ()
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/query.sql b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/query.sql
new file mode 100644
index 0000000000..b505b6b265
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/query.sql
@@ -0,0 +1,6 @@
+CREATE TABLE authors (
+    author_id SERIAL PRIMARY KEY
+);
+
+-- name: CreateAuthors :copyfrom
+INSERT INTO authors (author_id) VALUES ($1);
diff --git a/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/sqlc.json b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/sqlc.json
new file mode 100644
index 0000000000..170791aa85
--- /dev/null
+++ b/internal/endtoend/testdata/copyfrom_singlecolumn/postgresql/pgx/v5/sqlc.json
@@ -0,0 +1,14 @@
+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "engine": "postgresql",
+      "sql_package": "pgx/v5",
+      "name": "querytest",
+      "schema": "query.sql",
+      "queries": "query.sql",
+      "emit_interface": true
+    }
+  ]
+}