Reserved names
This page documents the preview version (v2.23). Preview includes features under active development and is for development and testing only. For production, use the stable version (v2024.1). To learn more, see Versioning.
YSQL reserves the following names for internal usage. Exception will be raised when these names are used even when they are double-quoted.
| Names | Description |
|---|---|
oid |
System column |
tableoid |
System column |
xmin |
System column |
cmin |
System column |
xmax |
System column |
cmax |
System column |
ctid |
System column |
ybctid |
Virtual column |
Prefixed with pg_ |
System database objects |
Prefixed with yb_ |
System database objects |