*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/commands/explain.c,v 1.21 1998/08/04 04:50:15 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/explain.c,v 1.22 1998/08/04 15:00:26 momjian Exp $
*
*-------------------------------------------------------------------------
*/
{
/* options */
bool printCost; /* print cost */
- bool printNodes; /* do pprint() instead */
+ bool printNodes; /* do nodeToString() instead */
/* other states */
List *rtable; /* range table */
} ExplainState;
es->rtable = query->rtable;
if (es->printNodes)
- s = pprint(plan);
-
+ {
+ pprint(plan); /* display in postmaster log file */
+ s = nodeToString(plan);
+ }
+
if (es->printCost)
{
s2 = Explain_PlanToString(plan, es);
.\" This is -*-nroff-*-
.\" XXX standard disclaimer belongs here....
-.\" $Header: /cvsroot/pgsql/src/man/Attic/explain.l,v 1.9 1998/02/10 04:02:59 momjian Exp $
+.\" $Header: /cvsroot/pgsql/src/man/Attic/explain.l,v 1.10 1998/08/04 15:00:28 momjian Exp $
.TH EXPLAIN SQL 06/12/97 PostgreSQL PostgreSQL
.SH NAME
explain - explains statement execution details
.SH DESCRIPTION
This command outputs details about the supplied query. The default
output is the computed query cost. \f2verbose\f1 displays the full query
-plan and cost.
+plan and cost to your screen, and pretty-prints the plan to the postmaster
+log file.
.SH EXAMPLES
In the examples, the table has a single column of float4.