diff options
Diffstat (limited to 'src/include/utils/portal.h')
| -rw-r--r-- | src/include/utils/portal.h | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/include/utils/portal.h b/src/include/utils/portal.h index 4236215b796..7250c9c1bb3 100644 --- a/src/include/utils/portal.h +++ b/src/include/utils/portal.h @@ -166,15 +166,14 @@ typedef struct PortalData * atStart, atEnd and portalPos indicate the current cursor position. * portalPos is zero before the first row, N after fetching N'th row of * query. After we run off the end, portalPos = # of rows in query, and - * atEnd is true. If portalPos overflows, set posOverflow (this causes us - * to stop relying on its value for navigation). Note that atStart - * implies portalPos == 0, but not the reverse (portalPos could have - * overflowed). + * atEnd is true. Note that atStart implies portalPos == 0, but not the + * reverse: we might have backed up only as far as the first row, not to + * the start. Also note that various code inspects atStart and atEnd, but + * only the portal movement routines should touch portalPos. */ bool atStart; bool atEnd; - bool posOverflow; - long portalPos; + uint64 portalPos; /* Presentation data, primarily used by the pg_cursors system view */ TimestampTz creation_time; /* time at which this portal was defined */ |