diff --git a/internal/compiler/output_columns.go b/internal/compiler/output_columns.go
index 6cf7736032..56e236cecc 100644
--- a/internal/compiler/output_columns.go
+++ b/internal/compiler/output_columns.go
@@ -299,10 +299,13 @@ func sourceTables(qc *QueryCatalog, node ast.Node) ([]*Table, error) {
 	var tables []*Table
 	for _, item := range list.Items {
 		switch n := item.(type) {
+
 		case *ast.FuncName:
+			// If the function or table can't be found, don't error out.  There
+			// are many queries that depend on functions unknown to sqlc.
 			fn, err := qc.GetFunc(n)
 			if err != nil {
-				return nil, err
+				continue
 			}
 			table, err := qc.GetTable(&ast.TableName{
 				Catalog: fn.ReturnType.Catalog,
@@ -310,9 +313,10 @@ func sourceTables(qc *QueryCatalog, node ast.Node) ([]*Table, error) {
 				Name:    fn.ReturnType.Name,
 			})
 			if err != nil {
-				return nil, err
+				continue
 			}
 			tables = append(tables, table)
+
 		case *ast.RangeSubselect:
 			cols, err := outputColumns(qc, n.Subquery)
 			if err != nil {
@@ -345,6 +349,7 @@ func sourceTables(qc *QueryCatalog, node ast.Node) ([]*Table, error) {
 				}
 			}
 			tables = append(tables, table)
+
 		default:
 			return nil, fmt.Errorf("sourceTable: unsupported list item type: %T", n)
 		}
diff --git a/internal/endtoend/testdata/func_return/go/query.sql.go b/internal/endtoend/testdata/func_return/go/query.sql.go
index f40859f8e1..990f335916 100644
--- a/internal/endtoend/testdata/func_return/go/query.sql.go
+++ b/internal/endtoend/testdata/func_return/go/query.sql.go
@@ -5,8 +5,43 @@ package querytest
 
 import (
 	"context"
+	"net"
 )
 
+const generateSeries = `-- name: GenerateSeries :many
+SELECT ($1::inet) + i
+FROM generate_series(0, $2::int) AS i
+LIMIT 1
+`
+
+type GenerateSeriesParams struct {
+	Column1 net.IP
+	Column2 int32
+}
+
+func (q *Queries) GenerateSeries(ctx context.Context, arg GenerateSeriesParams) ([]int32, error) {
+	rows, err := q.db.QueryContext(ctx, generateSeries, arg.Column1, arg.Column2)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []int32
+	for rows.Next() {
+		var column_1 int32
+		if err := rows.Scan(&column_1); err != nil {
+			return nil, err
+		}
+		items = append(items, column_1)
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
 const getUsers = `-- name: GetUsers :many
 SELECT id, first_name
 FROM users_func()
diff --git a/internal/endtoend/testdata/func_return/query.sql b/internal/endtoend/testdata/func_return/query.sql
index f72450421a..cfea2119d0 100644
--- a/internal/endtoend/testdata/func_return/query.sql
+++ b/internal/endtoend/testdata/func_return/query.sql
@@ -2,3 +2,8 @@
 SELECT *
 FROM users_func()
 WHERE first_name != '';
+
+/* name: GenerateSeries :many */
+SELECT ($1::inet) + i
+FROM generate_series(0, $2::int) AS i
+LIMIT 1;