diff options
Diffstat (limited to 'src/include/nodes/primnodes.h')
| -rw-r--r-- | src/include/nodes/primnodes.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/include/nodes/primnodes.h b/src/include/nodes/primnodes.h index ff5c4ff8e4a..f90aa7b2a19 100644 --- a/src/include/nodes/primnodes.h +++ b/src/include/nodes/primnodes.h @@ -1581,4 +1581,27 @@ typedef struct PartitionPruneStepCombine List *source_stepids; } PartitionPruneStepCombine; +/*---------- + * PartitionPruneInfo - Details required to allow the executor to prune + * partitions. + * + * Here we store mapping details to allow translation of a partitioned table's + * index into subnode indexes for node types which support arbitrary numbers + * of sub nodes, such as Append. + *---------- + */ +typedef struct PartitionPruneInfo +{ + NodeTag type; + Oid reloid; /* Oid of partition rel */ + List *pruning_steps; /* List of PartitionPruneStep */ + Bitmapset *present_parts; /* Indexes of all partitions which subnodes + * are present for. */ + int nparts; /* The length of the following two arrays */ + int *subnode_map; /* subnode index by partition id, or -1 */ + int *subpart_map; /* subpart index by partition id, or -1 */ + Bitmapset *extparams; /* All external paramids seen in prunesteps */ + Bitmapset *execparams; /* All exec paramids seen in prunesteps */ +} PartitionPruneInfo; + #endif /* PRIMNODES_H */ |