Add more error fields to PgError

conn.go

@@ -812,6 +812,18 @@ func (c *Conn) rxErrorResponse(r *msgReader) (err PgError) {
 			err.Detail = r.readCString()
 		case 'H':
 			err.Hint = r.readCString()
+		case 'P':
+			s := r.readCString()
+			n, _ := strconv.ParseInt(s, 10, 32)
+			err.Position = int32(n)
+		case 'p':
+			s := r.readCString()
+			n, _ := strconv.ParseInt(s, 10, 32)
+			err.InternalPosition = int32(n)
+		case 'q':
+			err.InternalQuery = r.readCString()
+		case 'W':
+			err.Where = r.readCString()
 		case 's':
 			err.SchemaName = r.readCString()
 		case 't':
@@ -822,6 +834,15 @@ func (c *Conn) rxErrorResponse(r *msgReader) (err PgError) {
 			err.DataTypeName = r.readCString()
 		case 'n':
 			err.ConstraintName = r.readCString()
+		case 'F':
+			err.File = r.readCString()
+		case 'L':
+			s := r.readCString()
+			n, _ := strconv.ParseInt(s, 10, 32)
+			err.Line = int32(n)
+		case 'R':
+			err.Routine = r.readCString()
+
 		case 0: // End of error message
 			if err.Severity == "FATAL" {
 				c.die(err)

messages.go

@@ -66,16 +66,23 @@ type FieldDescription struct {
 // http://www.postgresql.org/docs/9.3/static/protocol-error-fields.html for
 // detailed field description.
 type PgError struct {
-	Severity       string
+	Severity         string
-	Code           string
+	Code             string
-	Message        string
+	Message          string
-	Detail         string
+	Detail           string
-	Hint           string
+	Hint             string
-	SchemaName     string
+	Position         int32
-	TableName      string
+	InternalPosition int32
-	ColumnName     string
+	InternalQuery    string
-	DataTypeName   string
+	Where            string
-	ConstraintName string
+	SchemaName       string
+	TableName        string
+	ColumnName       string
+	DataTypeName     string
+	ConstraintName   string
+	File             string
+	Line             int32
+	Routine          string
 }
 
 func (self PgError) Error() string {