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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2009-10-10 01:43:50 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2009-10-10 01:43:50 +0000 |
| commit | 8a5849b7ff24c637a1140c26fc171e45c9142005 (patch) | |
| tree | 8f660c08709c999c3a4299436312390c53231b01 /src/include/nodes/execnodes.h | |
| parent | b865d2758255b767e30dc5f23c7c7d209e716f3b (diff) | |
| download | postgresql-8a5849b7ff24c637a1140c26fc171e45c9142005.tar.gz | |
Split the processing of INSERT/UPDATE/DELETE operations out of execMain.c.
They are now handled by a new plan node type called ModifyTable, which is
placed at the top of the plan tree. In itself this change doesn't do much,
except perhaps make the handling of RETURNING lists and inherited UPDATEs a
tad less klugy. But it is necessary preparation for the intended extension of
allowing RETURNING queries inside WITH.
Marko Tiikkaja
Diffstat (limited to 'src/include/nodes/execnodes.h')
| -rw-r--r-- | src/include/nodes/execnodes.h | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h index ea66e109c1..264ef741da 100644 --- a/src/include/nodes/execnodes.h +++ b/src/include/nodes/execnodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.208 2009/09/27 20:09:58 tgl Exp $ + * $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.209 2009/10/10 01:43:50 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -339,7 +339,7 @@ typedef struct EState ResultRelInfo *es_result_relations; /* array of ResultRelInfos */ int es_num_result_relations; /* length of array */ ResultRelInfo *es_result_relation_info; /* currently active array elt */ - JunkFilter *es_junkFilter; /* currently active junk filter */ + JunkFilter *es_junkFilter; /* top-level junk filter, if any */ /* Stuff used for firing triggers: */ List *es_trig_target_relations; /* trigger-only ResultRelInfos */ @@ -976,12 +976,24 @@ typedef struct ResultState } ResultState; /* ---------------- + * ModifyTableState information + * ---------------- + */ +typedef struct ModifyTableState +{ + PlanState ps; /* its first field is NodeTag */ + CmdType operation; + PlanState **mt_plans; /* subplans (one per target rel) */ + int mt_nplans; /* number of plans in the array */ + int mt_whichplan; /* which one is being executed (0..n-1) */ + bool fireBSTriggers; /* do we need to fire stmt triggers? */ +} ModifyTableState; + +/* ---------------- * AppendState information * - * nplans how many plans are in the list + * nplans how many plans are in the array * whichplan which plan is being executed (0 .. n-1) - * firstplan first plan to execute (usually 0) - * lastplan last plan to execute (usually n-1) * ---------------- */ typedef struct AppendState @@ -990,8 +1002,6 @@ typedef struct AppendState PlanState **appendplans; /* array of PlanStates for my inputs */ int as_nplans; int as_whichplan; - int as_firstplan; - int as_lastplan; } AppendState; /* ---------------- |