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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2000-10-26 21:38:24 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2000-10-26 21:38:24 +0000 |
| commit | 2f35b4efdbec6c161ca9bd491d6345134910c425 (patch) | |
| tree | 2424351bcc12a8ddf2b716b28f53d2c37c79e507 /src/backend/executor/execProcnode.c | |
| parent | c9476bafdb1b97d0d21d92788f93298962145479 (diff) | |
| download | postgresql-2f35b4efdbec6c161ca9bd491d6345134910c425.tar.gz postgresql-2f35b4efdbec6c161ca9bd491d6345134910c425.zip | |
Re-implement LIMIT/OFFSET as a plan node type, instead of a hack in
ExecutorRun. This allows LIMIT to work in a view. Also, LIMIT in a
cursor declaration will behave in a reasonable fashion, whereas before
it was overridden by the FETCH count.
Diffstat (limited to 'src/backend/executor/execProcnode.c')
| -rw-r--r-- | src/backend/executor/execProcnode.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/backend/executor/execProcnode.c b/src/backend/executor/execProcnode.c index 6269a7caa10..d7db099653d 100644 --- a/src/backend/executor/execProcnode.c +++ b/src/backend/executor/execProcnode.c @@ -12,7 +12,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.21 2000/10/05 19:11:26 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.22 2000/10/26 21:35:15 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -83,6 +83,7 @@ #include "executor/nodeHashjoin.h" #include "executor/nodeIndexscan.h" #include "executor/nodeTidscan.h" +#include "executor/nodeLimit.h" #include "executor/nodeMaterial.h" #include "executor/nodeMergejoin.h" #include "executor/nodeNestloop.h" @@ -204,6 +205,10 @@ ExecInitNode(Plan *node, EState *estate, Plan *parent) result = ExecInitSetOp((SetOp *) node, estate, parent); break; + case T_Limit: + result = ExecInitLimit((Limit *) node, estate, parent); + break; + case T_Group: result = ExecInitGroup((Group *) node, estate, parent); break; @@ -331,6 +336,10 @@ ExecProcNode(Plan *node, Plan *parent) result = ExecSetOp((SetOp *) node); break; + case T_Limit: + result = ExecLimit((Limit *) node); + break; + case T_Group: result = ExecGroup((Group *) node); break; @@ -413,6 +422,9 @@ ExecCountSlotsNode(Plan *node) case T_SetOp: return ExecCountSlotsSetOp((SetOp *) node); + case T_Limit: + return ExecCountSlotsLimit((Limit *) node); + case T_Group: return ExecCountSlotsGroup((Group *) node); @@ -535,6 +547,10 @@ ExecEndNode(Plan *node, Plan *parent) ExecEndSetOp((SetOp *) node); break; + case T_Limit: + ExecEndLimit((Limit *) node); + break; + case T_Group: ExecEndGroup((Group *) node); break; |