Method renameColumn

internal/sql/catalog/table.go:392–423

(stmt *ast.RenameColumnStmt)

}

func (c *Catalog) renameColumn(stmt *ast.RenameColumnStmt) error {
	_, tbl, err := c.getTable(stmt.Table)
	if err != nil {
		return checkMissing(err, stmt.MissingOk)
	}
	idx := -1
	for i := range tbl.Columns {
		if tbl.Columns[i].Name == stmt.Col.Name {
			idx = i
		}
		if tbl.Columns[i].Name == *stmt.NewName {
			return sqlerr.ColumnExists(tbl.Rel.Name, *stmt.NewName)
		}
	}
	if idx == -1 {
		return sqlerr.ColumnNotFound(tbl.Rel.Name, stmt.Col.Name)
	}
	tbl.Columns[idx].Name = *stmt.NewName

	if tbl.Columns[idx].linkedType {
		name := fmt.Sprintf("%s_%s", tbl.Rel.Name, *stmt.NewName)
		rename := &ast.RenameTypeStmt{
			Type:    &tbl.Columns[idx].Type,
			NewName: &name,
		}
		if err := c.renameType(rename); err != nil {
			return err
		}
	}

	return nil
}

func (c *Catalog) renameTable(stmt *ast.RenameTableStmt) error {
	sch, tbl, err := c.getTable(stmt.Table)