8000 Rework grammar for REINDEX · postgres/postgres@83011ce · GitHub
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alvherrealvherre
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Rework grammar for REINDEX
The part of grammar have grown needlessly duplicative and more complex that necessary. Rewrite. Reviewed-by: Michaël Paquier <michael@paquier.xyz> Discussion: https://postgr.es/m/20220721174212.cmitjpuimx6ssyyj@alvherre.pgsql
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4 files changed

+38
-58
lines changed

4 files changed

+38
-58
lines changed

‎doc/src/sgml/ref/reindex.sgml‎

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -22,7 +22,8 @@ PostgreSQL documentation
2222
<refsynopsisdiv>
2323
<synopsis>
2424
REINDEX [ ( <replaceable class="parameter">option</replaceable> [, ...] ) ] { INDEX | TABLE | SCHEMA } [ CONCURRENTLY ] <replaceable class="parameter">name</replaceable>
25-
REINDEX [ ( <replaceable class="parameter">option</replaceable> [, ...] ) ] { DATABASE | SYSTEM } [ CONCURRENTLY ] [ <replaceable class="parameter">name</replaceable> ]
25+
REINDEX [ ( <replaceable class="parameter">option</replaceable> [, ...] ) ] DATABASE [ CONCURRENTLY ] [ <replaceable class="parameter">name</replaceable> ]
26+
REINDEX [ ( <replaceable class="parameter">option</replaceable> [, ...] ) ] SYSTEM [ <replaceable class="parameter">name</replaceable> ]
2627

2728
<phrase>where <replaceable class="parameter">option</replaceable> can be one of:</phrase>
2829

‎src/backend/parser/gram.y‎

Lines changed: 28 additions & 57 deletions
Original file line numberDiff line numberDiff line change
@@ -336,7 +336,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
336336

337337
%type <str> opt_single_name
338338
%type <list> opt_qualified_name
339-
%type <boolean> opt_concurrently
339+
%type <boolean> opt_concurrently
340340
%type <dbehavior> opt_drop_behavior
341341

342342
%type <node> alter_column_default opclass_item opclass_drop alter_using
@@ -564,7 +564,8 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
564564
%type <defelt> generic_option_elem alter_generic_option_elem
565565
%type <list> generic_option_list alter_generic_option_list
566566

567-
%type <ival> reindex_target_type reindex_target_multitable reindex_name_optional
567+
%type <ival> reindex_target_type
568+
%type <list> opt_reindex_option_list
568569

569570
%type <node> copy_generic_opt_arg copy_generic_opt_arg_list_item
570571
%type <defelt> copy_generic_opt_elem
@@ -9091,94 +9092,64 @@ DropTransformStmt: DROP TRANSFORM opt_if_exists FOR Typename LANGUAGE name opt_d
90919092
*
90929093
* QUERY:
90939094
*
9094-
* REINDEX [ (options) ] type [CONCURRENTLY] <name>
9095+
* REINDEX [ (options) ] {TABLE | INDEX | SCHEMA} [CONCURRENTLY] <name>
9096+
* REINDEX [ (options) ] DATABASE [CONCURRENTLY] [<name>]
9097+
* REINDEX [ (options) ] SYSTEM [<name>]
90959098
*****************************************************************************/
90969099

90979100
ReindexStmt:
9098-
REINDEX reindex_target_type opt_concurrently qualified_name
9101+
REINDEX opt_reindex_option_list reindex_target_type opt_concurrently qualified_name
90999102
{
91009103
ReindexStmt *n = makeNode(ReindexStmt);
91019104

9102-
n->kind = $2;
9103-
n->relation = $4;
9105+
n->kind = $3;
9106+
n->relation = $5;
91049107
n->name = NULL;
9105-
n->params = NIL;
9106-
if ($3)
9108+
n->params = $2;
9109+
if ($4)
91079110
n->params = lappend(n->params,
9108-
makeDefElem("concurrently", NULL, @3));
9111+
makeDefElem("concurrently", NULL, @4));
91099112
$$ = (Node *) n;
91109113
}
9111-
| REINDEX reindex_target_multitable opt_concurrently name
9114+
| REINDEX opt_reindex_option_list SCHEMA opt_concurrently name
91129115
{
91139116
ReindexStmt *n = makeNode(ReindexStmt);
91149117

9115-
n->kind = $2;
9116-
n->name = $4;
9118+
n->kind = REINDEX_OBJECT_SCHEMA;
9119+
n->name = $5;
91179120
n->relation = NULL;
9118-
n->params = NIL;
9119-
if ($3)
9121+
n->params = $2;
9122+
if ($4)
91209123
n->params = lappend(n->params,
9121-
makeDefElem("concurrently", NULL, @3));
9124+
makeDefElem("concurrently", NULL, @4));
91229125
$$ = (Node *) n;
91239126
}
9124-
| REINDEX reindex_name_optional
9125-
{
9126-
ReindexStmt *n = makeNode(ReindexStmt);
9127-
n->kind = $2;
9128-
n->name = NULL;
9129-
n->relation = NULL;
9130-
n->params = NIL;
9131-
$$ = (Node *)n;
9132-
}
9133-
| REINDEX '(' utility_option_list ')' reindex_name_optional
9127+
| REINDEX opt_reindex_option_list DATABASE opt_concurrently opt_single_name
91349128
{
91359129
ReindexStmt *n = makeNode(ReindexStmt);
9136-
n->kind = $5;
9130+
n->kind = REINDEX_OBJECT_DATABASE;
91379131
n->name = NULL;
91389132
n->relation = NULL;
9139-
n->params = $3;
9140-
$$ = (Node *)n;
9141-
}
9142-
| REINDEX '(' utility_option_list ')' reindex_target_type opt_concurrently qualified_name
9143-
{
9144-
ReindexStmt *n = makeNode(ReindexStmt);
9145-
9146-
n->kind = $5;
9147-
n->relation = $7;
9148-
n->name = NULL;
9149-
n->params = $3;
9150-
if ($6)
9151-
n->params = lappend(n->params,
9152-
makeDefElem("concurrently", NULL, @6));
9133+
n->params = $2;
91539134
$$ = (Node *) n;
91549135
}
9155-
| REINDEX '(' utility_option_list ')' reindex_target_multitable opt_concurrently name
9136+
| REINDEX opt_reindex_option_list SYSTEM_P opt_single_name
91569137
{
91579138
ReindexStmt *n = makeNode(ReindexStmt);
9158-
9159-
n->kind = $5;
9160-
n->name = $7;
9139+
n->kind = REINDEX_OBJECT_SYSTEM;
9140+
n->name = NULL;
91619141
n->relation = NULL;
9162-
n->params = $3;
9163-
if ($6)
9164-
n->params = lappend(n->params,
9165-
makeDefElem("concurrently", NULL, @6));
9142+
n->params = $2;
91669143
$$ = (Node *) n;
91679144
}
91689145
;
91699146
reindex_target_type:
91709147
INDEX { $$ = REINDEX_OBJECT_INDEX; }
91719148
| TABLE { $$ = REINDEX_OBJECT_TABLE; }
91729149
;
9173-
reindex_target_multitable:
9174-
SCHEMA { $$ = REINDEX_OBJECT_SCHEMA; }
9175-
| SYSTEM_P { $$ = REINDEX_OBJECT_SYSTEM; }
9176-
| DATABASE { $$ = REINDEX_OBJECT_DATABASE; }
9177-
;
9178-
/* For these options the name is optional */
9179-
reindex_name_optional:
9180-
SYSTEM_P { $$ = REINDEX_OBJECT_SYSTEM; }
9181-
| DATABASE { $$ = REINDEX_OBJECT_DATABASE; }
9150+
opt_reindex_option_list:
9151+
'(' utility_option_list ')' { $$ = $2; }
9152+
| /* EMPTY */ { $$ = NULL; }
91829153
;
91839154

91849155
/*****************************************************************************

‎src/test/regress/expected/create_index.out‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2521,6 +2521,12 @@ ERROR: cannot reindex system catalogs concurrently
25212521
REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
25222522
ERROR: cannot reindex system catalogs concurrently
25232523
REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
2524+
ERROR: syntax error at or near "CONCURRENTLY"
2525+
LINE 1: REINDEX SYSTEM CONCURRENTLY postgres;
2526+
^
2527+
REINDEX (CONCURRENTLY) SYSTEM postgres; -- ditto
2528+
ERROR: cannot reindex system catalogs concurrently
2529+
REINDEX (CONCURRENTLY) SYSTEM; -- ditto
25242530
ERROR: cannot reindex system catalogs concurrently
25252531
-- Warns about catalog relations
25262532
REINDEX SCHEMA CONCURRENTLY pg_catalog;

‎src/test/regress/sql/create_index.sql‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1072,6 +1072,8 @@ REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
10721072
REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
10731073
REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
10741074
REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
1075+
REINDEX (CONCURRENTLY) SYSTEM postgres; -- ditto
1076+
REINDEX (CONCURRENTLY) SYSTEM; -- ditto
10751077
-- Warns about catalog relations
10761078
REINDEX SCHEMA CONCURRENTLY pg_catalog;
10771079

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