diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 41fdb3e6ba1..670b12fc82d 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -1058,6 +1058,10 @@ typedef struct SelectStmt * can be coerced to the output column type.) Also, if it's not UNION ALL, * information about the types' sort/group semantics is provided in the form * of a SortGroupClause list (same representation as, eg, DISTINCT). + * The resolved common column collations are provided too; but note that if + * it's not UNION ALL, it's okay for a column to not have a common collation, + * so a member of the colCollations list could be InvalidOid even though the + * column has a collatable type. * ---------------------- */ typedef struct SetOperationStmt |