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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2008-07-16 01:30:23 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2008-07-16 01:30:23 +0000 |
| commit | d89737d31c03d90a2b0412e63953493576a2a3d7 (patch) | |
| tree | 0afc63e59fae7ec3c53339641a6f65e6a04733d2 /src/backend/nodes | |
| parent | 2c773296f88fe800315ca1bf131287662ecef999 (diff) | |
| download | postgresql-d89737d31c03d90a2b0412e63953493576a2a3d7.tar.gz | |
Support "variadic" functions, which can accept a variable number of arguments
so long as all the trailing arguments are of the same (non-array) type.
The function receives them as a single array argument (which is why they
have to all be the same type).
It might be useful to extend this facility to aggregates, but this patch
doesn't do that.
This patch imposes a noticeable slowdown on function lookup --- a follow-on
patch will fix that by adding a redundant column to pg_proc.
Pavel Stehule
Diffstat (limited to 'src/backend/nodes')
| -rw-r--r-- | src/backend/nodes/copyfuncs.c | 3 | ||||
| -rw-r--r-- | src/backend/nodes/equalfuncs.c | 3 | ||||
| -rw-r--r-- | src/backend/nodes/outfuncs.c | 3 |
3 files changed, 6 insertions, 3 deletions
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index a42c40327f..2e1ce4cb0d 100644 --- a/src/backend/nodes/copyfuncs.c +++ b/src/backend/nodes/copyfuncs.c @@ -15,7 +15,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.394 2008/05/16 23:36:05 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.395 2008/07/16 01:30:22 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1651,6 +1651,7 @@ _copyFuncCall(FuncCall *from) COPY_NODE_FIELD(args); COPY_SCALAR_FIELD(agg_star); COPY_SCALAR_FIELD(agg_distinct); + COPY_SCALAR_FIELD(func_variadic); COPY_SCALAR_FIELD(location); return newnode; diff --git a/src/backend/nodes/equalfuncs.c b/src/backend/nodes/equalfuncs.c index 435ee6a6af..41999226b6 100644 --- a/src/backend/nodes/equalfuncs.c +++ b/src/backend/nodes/equalfuncs.c @@ -18,7 +18,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.323 2008/05/16 23:36:05 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.324 2008/07/16 01:30:22 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1705,6 +1705,7 @@ _equalFuncCall(FuncCall *a, FuncCall *b) COMPARE_NODE_FIELD(args); COMPARE_SCALAR_FIELD(agg_star); COMPARE_SCALAR_FIELD(agg_distinct); + COMPARE_SCALAR_FIELD(func_variadic); COMPARE_SCALAR_FIELD(location); return true; diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index 51b46a83ed..a03063ce1e 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.326 2008/04/29 14:59:16 alvherre Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.327 2008/07/16 01:30:22 tgl Exp $ * * NOTES * Every node type that can appear in stored rules' parsetrees *must* @@ -1610,6 +1610,7 @@ _outFuncCall(StringInfo str, FuncCall *node) WRITE_NODE_FIELD(args); WRITE_BOOL_FIELD(agg_star); WRITE_BOOL_FIELD(agg_distinct); + WRITE_BOOL_FIELD(func_variadic); WRITE_INT_FIELD(location); } |