v2.23 Preview Preview release - not for production v2024.1 STS Stable release with standard-term support v2.20 LTS Stable release with long-term support v2.18 STS Stable release with standard-term support v2.14 LTS Stable release with long-term support Unsupported versions

Reserved names

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