Change EXPLAIN options to just use VERBOSE.

This commit is contained in:
Bruce Momjian 1997-01-16 14:56:59 +00:00
parent b00c2c1d3f
commit 3a02ccfa1d
6 changed files with 19 additions and 40 deletions

View File

@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/explain.c,v 1.7 1996/12/29 19:30:55 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/commands/explain.c,v 1.8 1997/01/16 14:55:58 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -41,7 +41,7 @@ static char *Explain_PlanToString(Plan *plan, ExplainState *es);
* *
*/ */
void void
ExplainQuery(Query *query, List *options, CommandDest dest) ExplainQuery(Query *query, bool verbose, CommandDest dest)
{ {
char *s = NULL, *s2; char *s = NULL, *s2;
Plan *plan; Plan *plan;
@ -68,25 +68,10 @@ ExplainQuery(Query *query, List *options, CommandDest dest)
es = (ExplainState*)malloc(sizeof(ExplainState)); es = (ExplainState*)malloc(sizeof(ExplainState));
memset(es, 0, sizeof(ExplainState)); memset(es, 0, sizeof(ExplainState));
/* parse options */ es->printCost = true; /* default */
while (options) {
char *ostr = strVal(lfirst(options));
if (!strcasecmp(ostr, "cost"))
es->printCost = true;
else if (!strcasecmp(ostr, "plan"))
es->printNodes = true;
else if (!strcasecmp(ostr, "full")) {
es->printCost = true;
es->printNodes = true;
}
else
elog(WARN, "Unknown EXPLAIN option: %s", ostr);
options = lnext(options); if (verbose)
} es->printNodes = true;
if (!es->printCost && !es->printNodes)
es->printCost = true; /* default */
es->rtable = query->rtable; es->rtable = query->rtable;

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@ -10,7 +10,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.24 1997/01/13 03:44:18 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.25 1997/01/16 14:56:05 momjian Exp $
* *
* HISTORY * HISTORY
* AUTHOR DATE MAJOR EVENT * AUTHOR DATE MAJOR EVENT
@ -131,7 +131,7 @@ static Node *makeA_Expr(int oper, char *opname, Node *lexpr, Node *rexpr);
sort_clause, sortby_list, index_params, sort_clause, sortby_list, index_params,
name_list, from_clause, from_list, opt_array_bounds, nest_array_bounds, name_list, from_clause, from_list, opt_array_bounds, nest_array_bounds,
expr_list, attrs, res_target_list, res_target_list2, expr_list, attrs, res_target_list, res_target_list2,
def_list, opt_indirection, group_clause, groupby_list, explain_options def_list, opt_indirection, group_clause, groupby_list
%type <boolean> opt_inh_star, opt_binary, opt_instead, opt_with_copy, %type <boolean> opt_inh_star, opt_binary, opt_instead, opt_with_copy,
index_opt_unique, opt_verbose index_opt_unique, opt_verbose
@ -1227,21 +1227,15 @@ opt_verbose: VERBOSE { $$ = TRUE; }
* *
*****************************************************************************/ *****************************************************************************/
ExplainStmt: EXPLAIN explain_options OptimizableStmt ExplainStmt: EXPLAIN opt_verbose OptimizableStmt
{ {
ExplainStmt *n = makeNode(ExplainStmt); ExplainStmt *n = makeNode(ExplainStmt);
n->verbose = $2;
n->query = (Query*)$3; n->query = (Query*)$3;
n->options = $2;
$$ = (Node *)n; $$ = (Node *)n;
} }
; ;
explain_options: WITH name_list
{ $$ = $2; }
| /*EMPTY*/
{ $$ = NIL; }
;
/***************************************************************************** /*****************************************************************************
* * * *
* Optimizable Stmts: * * Optimizable Stmts: *

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@ -9,7 +9,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.10 1997/01/13 03:44:38 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.11 1997/01/16 14:56:21 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -591,7 +591,7 @@ ProcessUtility(Node *parsetree,
commandTag = "EXPLAIN"; commandTag = "EXPLAIN";
CHECK_IF_ABORTED(); CHECK_IF_ABORTED();
ExplainQuery(stmt->query, stmt->options, dest); ExplainQuery(stmt->query, stmt->verbose, dest);
} }
break; break;

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@ -5,13 +5,13 @@
* *
* Copyright (c) 1994-5, Regents of the University of California * Copyright (c) 1994-5, Regents of the University of California
* *
* $Id: explain.h,v 1.1 1996/08/28 07:21:47 scrappy Exp $ * $Id: explain.h,v 1.2 1997/01/16 14:56:34 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
#ifndef EXPLAIN_H #ifndef EXPLAIN_H
#define EXPLAIN_H #define EXPLAIN_H
extern void ExplainQuery(Query *query, List *options, CommandDest dest); extern void ExplainQuery(Query *query, bool verbose, CommandDest dest);
#endif /* EXPLAIN_H*/ #endif /* EXPLAIN_H*/

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@ -6,7 +6,7 @@
* *
* Copyright (c) 1994, Regents of the University of California * Copyright (c) 1994, Regents of the University of California
* *
* $Id: parsenodes.h,v 1.9 1997/01/13 03:45:02 momjian Exp $ * $Id: parsenodes.h,v 1.10 1997/01/16 14:56:45 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -408,7 +408,7 @@ typedef struct VacuumStmt {
typedef struct ExplainStmt { typedef struct ExplainStmt {
NodeTag type; NodeTag type;
Query *query; /* the query */ Query *query; /* the query */
List *options; bool verbose; /* print plan info */
} ExplainStmt; } ExplainStmt;

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@ -1,17 +1,17 @@
.\" This is -*-nroff-*- .\" This is -*-nroff-*-
.\" XXX standard disclaimer belongs here.... .\" XXX standard disclaimer belongs here....
.\" $Header: /cvsroot/pgsql/src/man/Attic/explain.l,v 1.3 1996/12/29 19:31:16 momjian Exp $ .\" $Header: /cvsroot/pgsql/src/man/Attic/explain.l,v 1.4 1997/01/16 14:56:59 momjian Exp $
.TH EXPLAIN SQL 11/05/95 PostgreSQL PostgreSQL .TH EXPLAIN SQL 11/05/95 PostgreSQL PostgreSQL
.SH NAME .SH NAME
explain \(em explains statement execution details explain \(em explains statement execution details
.SH SYNOPSIS .SH SYNOPSIS
.nf .nf
\fBexplain [with\fP \fB{cost|plan|full}]\fR query \fBexplain [verbose]\fR query
.fi .fi
.SH DESCRIPTION .SH DESCRIPTION
This command outputs details about the supplied query. The default This command outputs details about the supplied query. The default
output is the computed query cost. \f2plan\f1 displays the full query output is the computed query cost. \f2verbose\f1 displays the full query
plan. \f2full\f1 display both query plan and query cost. plan and cost.
.PP .PP
The query cost and plan can be affected by running vacuum. The query cost and plan can be affected by running vacuum.