diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/nodes/execnodes.h | 1 | ||||
| -rw-r--r-- | src/include/nodes/plannodes.h | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h index a926ff17118..d9b09c59206 100644 --- a/src/include/nodes/execnodes.h +++ b/src/include/nodes/execnodes.h @@ -1777,6 +1777,7 @@ typedef struct ForeignScanState ScanState ss; /* its first field is NodeTag */ ExprState *fdw_recheck_quals; /* original quals not in ss.ps.qual */ Size pscan_len; /* size of parallel coordination information */ + ResultRelInfo *resultRelInfo; /* result rel info, if UPDATE or DELETE */ /* use struct pointer to avoid including fdwapi.h here */ struct FdwRoutine *fdwroutine; void *fdw_state; /* foreign-data wrapper can keep state here */ diff --git a/src/include/nodes/plannodes.h b/src/include/nodes/plannodes.h index a7bdf3497e1..7e6b10f86b9 100644 --- a/src/include/nodes/plannodes.h +++ b/src/include/nodes/plannodes.h @@ -599,12 +599,20 @@ typedef struct WorkTableScan * When the plan node represents a foreign join, scan.scanrelid is zero and * fs_relids must be consulted to identify the join relation. (fs_relids * is valid for simple scans as well, but will always match scan.scanrelid.) + * + * If the FDW's PlanDirectModify() callback decides to repurpose a ForeignScan + * node to perform the UPDATE or DELETE operation directly in the remote + * server, it sets 'operation' and 'resultRelation' to identify the operation + * type and target relation. Note that these fields are only set if the + * modification is performed *fully* remotely; otherwise, the modification is + * driven by a local ModifyTable node and 'operation' is left to CMD_SELECT. * ---------------- */ typedef struct ForeignScan { Scan scan; CmdType operation; /* SELECT/INSERT/UPDATE/DELETE */ + Index resultRelation; /* direct modification target's RT index */ Oid fs_server; /* OID of foreign server */ List *fdw_exprs; /* expressions that FDW may evaluate */ List *fdw_private; /* private data for FDW */ |