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Implement EXPLAIN EXECUTE. By Neil Conway, with some kibitzing from

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Tom Lane.
This commit is contained in:
Tom Lane
2003-02-02 23:46:38 +00:00
parent 6adb475f77
commit c7bceca156
9 changed files with 275 additions and 142 deletions
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32
src/backend/parser/gram.y
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@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.396 2003/01/23 23:38:56 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.397 2003/02/02 23:46:38 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -241,7 +241,7 @@ static void doNegateFloat(Value *v);
%type <ival> opt_interval
%type <node> overlay_placing substr_from substr_for
%type <boolean> opt_instead opt_cursor
%type <boolean> opt_instead opt_cursor opt_analyze
%type <boolean> index_opt_unique opt_verbose opt_full
%type <boolean> opt_freeze opt_default opt_recheck
%type <defelt> opt_binary opt_oids copy_delimiter
@ -3953,28 +3953,32 @@ opt_name_list:
/*****************************************************************************
*
* QUERY:
* EXPLAIN query
* EXPLAIN ANALYZE query
* EXPLAIN [ANALYZE] [VERBOSE] query
*
*****************************************************************************/
ExplainStmt:
EXPLAIN opt_verbose OptimizableStmt
{
ExplainStmt *n = makeNode(ExplainStmt);
n->verbose = $2;
n->analyze = FALSE;
n->query = (Query*)$3;
$$ = (Node *)n;
}
| EXPLAIN analyze_keyword opt_verbose OptimizableStmt
EXPLAIN opt_analyze opt_verbose OptimizableStmt
{
ExplainStmt *n = makeNode(ExplainStmt);
n->analyze = $2;
n->verbose = $3;
n->analyze = TRUE;
n->query = (Query*)$4;
$$ = (Node *)n;
}
| EXPLAIN opt_analyze opt_verbose ExecuteStmt
{
ExplainStmt *n = makeNode(ExplainStmt);
n->analyze = $2;
n->verbose = $3;
n->query = (Query*)$4;
$$ = (Node *)n;
}
;
opt_analyze:
analyze_keyword { $$ = TRUE; }
| /* EMPTY */ { $$ = FALSE; }
;
/*****************************************************************************