diff options
Diffstat (limited to 'src/backend/optimizer/path/costsize.c')
| -rw-r--r-- | src/backend/optimizer/path/costsize.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/backend/optimizer/path/costsize.c b/src/backend/optimizer/path/costsize.c index 55c7648b9e..a4d03e9f8f 100644 --- a/src/backend/optimizer/path/costsize.c +++ b/src/backend/optimizer/path/costsize.c @@ -54,7 +54,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.183 2007/05/21 17:57:33 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.184 2007/06/05 21:31:05 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -70,6 +70,7 @@ #include "optimizer/pathnode.h" #include "optimizer/planmain.h" #include "parser/parsetree.h" +#include "parser/parse_expr.h" #include "utils/lsyscache.h" #include "utils/selfuncs.h" #include "utils/tuplesort.h" @@ -1951,6 +1952,22 @@ cost_qual_eval_walker(Node *node, cost_qual_eval_context *context) context->total.per_tuple += get_func_cost(saop->opfuncid) * cpu_operator_cost * estimate_array_length(arraynode) * 0.5; } + else if (IsA(node, CoerceViaIO)) + { + CoerceViaIO *iocoerce = (CoerceViaIO *) node; + Oid iofunc; + Oid typioparam; + bool typisvarlena; + + /* check the result type's input function */ + getTypeInputInfo(iocoerce->resulttype, + &iofunc, &typioparam); + context->total.per_tuple += get_func_cost(iofunc) * cpu_operator_cost; + /* check the input type's output function */ + getTypeOutputInfo(exprType((Node *) iocoerce->arg), + &iofunc, &typisvarlena); + context->total.per_tuple += get_func_cost(iofunc) * cpu_operator_cost; + } else if (IsA(node, ArrayCoerceExpr)) { ArrayCoerceExpr *acoerce = (ArrayCoerceExpr *) node; |