fix error in same name column reference "id" is ambiguous

internal/compiler/query_catalog.go

@@ -2,6 +2,7 @@ package compiler
 
 import (
 	"fmt"
+	"strings"
 
 	"github.com/sqlc-dev/sqlc/internal/sql/ast"
 	"github.com/sqlc-dev/sqlc/internal/sql/catalog"
@@ -77,6 +78,35 @@ func ConvertColumn(rel *ast.TableName, c *catalog.Column) *Column {
 	}
 }
 
+func RevertConvertColumn(c *Column) *catalog.Column {
+	out := &catalog.Column{
+		Name:       c.Name,
+		IsNotNull:  c.NotNull,
+		IsUnsigned: c.Unsigned,
+		IsArray:    c.IsArray,
+		ArrayDims:  c.ArrayDims,
+		Length:     c.Length,
+	}
+	if c.Type != nil {
+		out.Type = *c.Type
+	}
+	dataTypes := strings.Split(c.DataType, ".")
+	if len(dataTypes) == 1 {
+		out.Type.Name = dataTypes[0]
+	} else if len(dataTypes) == 2 {
+		out.Type.Schema = dataTypes[0]
+		out.Type.Name = dataTypes[1]
+	}
+	return out
+}
+
+func RevertConvertColumns(columns []*Column) (out []*catalog.Column) {
+	for i := range columns {
+		out = append(out, RevertConvertColumn(columns[i]))
+	}
+	return
+}
+
 func (qc QueryCatalog) GetTable(rel *ast.TableName) (*Table, error) {
 	cte, exists := qc.ctes[rel.Name]
 	if exists {

internal/compiler/resolve.go

@@ -67,9 +67,20 @@ func (comp *Compiler) resolveCatalogRefs(qc *QueryCatalog, rvs []*ast.RangeVar,
 				continue
 			}
 			// If the table name doesn't exist, first check if it's a CTE
-			if _, qcerr := qc.GetTable(fqn); qcerr != nil {
+			cteTable, qcerr := qc.GetTable(fqn)
+			if qcerr != nil {
 				return nil, err
 			}
+			err = indexTable(catalog.Table{
+				Rel:     cteTable.Rel,
+				Columns: RevertConvertColumns(cteTable.Columns),
+			})
+			if err != nil {
+				return nil, err
+			}
+			if rv.Alias != nil {
+				aliasMap[*rv.Alias.Aliasname] = fqn
+			}
 			continue
 		}
 		err = indexTable(table)