diff options
Diffstat (limited to 'src/include/nodes/plannodes.h')
| -rw-r--r-- | src/include/nodes/plannodes.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/include/nodes/plannodes.h b/src/include/nodes/plannodes.h index f2f99f4a2b..81038f6ad1 100644 --- a/src/include/nodes/plannodes.h +++ b/src/include/nodes/plannodes.h @@ -183,6 +183,22 @@ typedef struct Append } Append; /* ---------------- + * MergeAppend node - + * Merge the results of pre-sorted sub-plans to preserve the ordering. + * ---------------- + */ +typedef struct MergeAppend +{ + Plan plan; + List *mergeplans; + /* remaining fields are just like the sort-key info in struct Sort */ + int numCols; /* number of sort-key columns */ + AttrNumber *sortColIdx; /* their indexes in the target list */ + Oid *sortOperators; /* OIDs of operators to sort them by */ + bool *nullsFirst; /* NULLS FIRST/LAST directions */ +} MergeAppend; + +/* ---------------- * RecursiveUnion node - * Generate a recursive union of two subplans. * |