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Allow existing VACUUM options to take a Boolean argument.

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This makes VACUUM work more like EXPLAIN already does without changing
the meaning of any commands that already work.  It is intended to
facilitate the addition of future VACUUM options that may take
non-Boolean parameters or that default to false.

Masahiko Sawada, reviewed by me.

Discussion: http://postgr.es/m/CA+TgmobpYrXr5sUaEe_T0boabV0DSm=utSOZzwCUNqfLEEm8Mw@mail.gmail.com
Discussion: http://postgr.es/m/CAD21AoBaFcKBAeL5_++j+Vzir2vBBcF4juW7qH8b3HsQY=Q6+w@mail.gmail.com
This commit is contained in:
Robert Haas
2019-03-29 08:22:49 -04:00
parent c900c15269
commit 41b54ba78e
4 changed files with 53 additions and 16 deletions
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10
src/backend/parser/gram.y
View File

@ -309,6 +309,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
%type <str> vac_analyze_option_name
%type <defelt> vac_analyze_option_elem
%type <list> vac_analyze_option_list
%type <node> vac_analyze_option_arg
%type <boolean> opt_or_replace
opt_grant_grant_option opt_grant_admin_option
opt_nowait opt_if_exists opt_with_data
@ -10543,9 +10544,9 @@ analyze_keyword:
;
vac_analyze_option_elem:
vac_analyze_option_name
vac_analyze_option_name vac_analyze_option_arg
{
$$ = makeDefElem($1, NULL, @1);
$$ = makeDefElem($1, $2, @1);
}
;
@ -10554,6 +10555,11 @@ vac_analyze_option_name:
| analyze_keyword { $$ = "analyze"; }
;
vac_analyze_option_arg:
opt_boolean_or_string { $$ = (Node *) makeString($1); }
| /* EMPTY */ { $$ = NULL; }
;
opt_analyze:
analyze_keyword { $$ = true; }
| /*EMPTY*/ { $$ = false; }