diff options
| author | Robert Haas <rhaas@postgresql.org> | 2016-03-29 15:04:05 -0400 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2016-03-29 15:04:05 -0400 |
| commit | 5fe5a2cee91117673e04617aeb1a38e305dcd783 (patch) | |
| tree | 191e937efe0f15daf02c921935d740f429decada /src/include/nodes/execnodes.h | |
| parent | 7f0a2c85fb221bae6908fb2fddad21a4c6d14438 (diff) | |
Allow aggregate transition states to be serialized and deserialized.
This is necessary infrastructure for supporting parallel aggregation
for aggregates whose transition type is "internal". Such values
can't be passed between cooperating processes, because they are
just pointers.
David Rowley, reviewed by Tomas Vondra and by me.
Diffstat (limited to 'src/include/nodes/execnodes.h')
| -rw-r--r-- | src/include/nodes/execnodes.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h index bf2a09bc39c..dbec07e5a37 100644 --- a/src/include/nodes/execnodes.h +++ b/src/include/nodes/execnodes.h @@ -1836,6 +1836,7 @@ typedef struct AggState bool agg_done; /* indicates completion of Agg scan */ bool combineStates; /* input tuples contain transition states */ bool finalizeAggs; /* should we call the finalfn on agg states? */ + bool serialStates; /* should agg states be (de)serialized? */ int projected_set; /* The last projected grouping set */ int current_set; /* The current grouping set being evaluated */ Bitmapset *grouped_cols; /* grouped cols in current projection */ |