diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 788e276227c..439dfea29ad 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -937,12 +937,16 @@ typedef struct PartitionCmd * * updatedCols is also used in some other places, for example, to determine * which triggers to fire and in FDWs to know which changed columns they - * need to ship off. Generated columns that are caused to be updated by an - * update to a base column are collected in extraUpdatedCols. This is not - * considered for permission checking, but it is useful in those places - * that want to know the full set of columns being updated as opposed to - * only the ones the user explicitly mentioned in the query. (There is - * currently no need for an extraInsertedCols, but it could exist.) + * need to ship off. + * + * Generated columns that are caused to be updated by an update to a base + * column are listed in extraUpdatedCols. This is not considered for + * permission checking, but it is useful in those places that want to know + * the full set of columns being updated as opposed to only the ones the + * user explicitly mentioned in the query. (There is currently no need for + * an extraInsertedCols, but it could exist.) Note that extraUpdatedCols + * is populated during query rewrite, NOT in the parser, since generated + * columns could be added after a rule has been parsed and stored. * * securityQuals is a list of security barrier quals (boolean expressions), * to be tested in the listed order before returning a row from the |