diff --git a/doc/src/sgml/mvcc.sgml b/doc/src/sgml/mvcc.sgml
index 2eaf00803b16a3d05f5b0eca19bdd3117d8a6e0c..6d7013a46a2696c5baff7db068c868a8db7e6b6f 100644
--- a/doc/src/sgml/mvcc.sgml
+++ b/doc/src/sgml/mvcc.sgml
@@ -1,5 +1,5 @@
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/mvcc.sgml,v 2.15 2001/05/17 21:50:16 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/mvcc.sgml,v 2.16 2001/07/09 22:18:33 tgl Exp $
-->
<chapter id="mvcc">
@@ -441,6 +441,25 @@ ERROR: Can't serialize access due to concurrent update
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>
+ ShareUpdateExclusiveLock
+ </term>
+ <listitem>
+ <para>
+ Acquired by <command>VACUUM</command> (without <option>FULL</option>)
+ and <command>LOCK TABLE</command> table
+ for <option>IN SHARE UPDATE EXCLUSIVE MODE</option>
+ statements.
+ </para>
+
+ <para>
+ Conflicts with ShareUpdateExclusiveLock, ShareLock,
+ ShareRowExclusiveLock, ExclusiveLock and AccessExclusiveLock modes.
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term>
ShareLock
@@ -454,7 +473,8 @@ ERROR: Can't serialize access due to concurrent update
</para>
<para>
- Conflicts with RowExclusiveLock, ShareRowExclusiveLock,
+ Conflicts with RowExclusiveLock, ShareUpdateExclusiveLock,
+ ShareRowExclusiveLock,
ExclusiveLock and AccessExclusiveLock modes.
</para>
</listitem>
@@ -471,7 +491,8 @@ ERROR: Can't serialize access due to concurrent update
</para>
<para>
- Conflicts with RowExclusiveLock, ShareLock, ShareRowExclusiveLock,
+ Conflicts with RowExclusiveLock, ShareUpdateExclusiveLock,
+ ShareLock, ShareRowExclusiveLock,
ExclusiveLock and AccessExclusiveLock modes.
</para>
</listitem>
@@ -488,7 +509,8 @@ ERROR: Can't serialize access due to concurrent update
</para>
<para>
- Conflicts with RowShareLock, RowExclusiveLock, ShareLock,
+ Conflicts with RowShareLock, RowExclusiveLock,
+ ShareUpdateExclusiveLock, ShareLock,
ShareRowExclusiveLock, ExclusiveLock and AccessExclusiveLock
modes.
</para>
@@ -503,13 +525,13 @@ ERROR: Can't serialize access due to concurrent update
<para>
Acquired by <command>ALTER TABLE</command>,
<command>DROP TABLE</command>,
- <command>VACUUM</command> and <command>LOCK TABLE</command>
+ <command>VACUUM FULL</command> and <command>LOCK TABLE</command>
statements.
</para>
<para>
Conflicts with all modes (AccessShareLock, RowShareLock,
- RowExclusiveLock, ShareLock,
+ RowExclusiveLock, ShareUpdateExclusiveLock, ShareLock,
ShareRowExclusiveLock, ExclusiveLock and AccessExclusiveLock).
</para>
</listitem>
diff --git a/doc/src/sgml/ref/lock.sgml b/doc/src/sgml/ref/lock.sgml
index bffbb7c23d4551bfa268c5b62eb4d21849742cd8..d576890acb96797078a8e1b18b7080435eb14b42 100644
--- a/doc/src/sgml/ref/lock.sgml
+++ b/doc/src/sgml/ref/lock.sgml
@@ -1,5 +1,5 @@
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/lock.sgml,v 1.23 2000/12/25 23:15:26 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/lock.sgml,v 1.24 2001/07/09 22:18:33 tgl Exp $
Postgres documentation
-->
@@ -20,12 +20,16 @@ Postgres documentation
</refnamediv>
<refsynopsisdiv>
<refsynopsisdivinfo>
- <date>1999-07-20</date>
+ <date>2001-07-09</date>
</refsynopsisdivinfo>
<synopsis>
LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable>
-LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN [ ROW | ACCESS ] { SHARE | EXCLUSIVE } MODE
-LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EXCLUSIVE MODE
+LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN <replaceable class="PARAMETER">lockmode</replaceable> MODE
+
+where <replaceable class="PARAMETER">lockmode</replaceable> is one of:
+
+ ACCESS SHARE | ROW SHARE | ROW EXCLUSIVE | SHARE UPDATE EXCLUSIVE |
+ SHARE | SHARE ROW EXCLUSIVE | EXCLUSIVE | ACCESS EXCLUSIVE
</synopsis>
<refsect2 id="R2-SQL-LOCK-1">
@@ -33,7 +37,6 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<date>1999-06-09</date>
</refsect2info>
-
<title>
Inputs
</title>
@@ -62,7 +65,7 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
This is the least restrictive lock mode. It conflicts only with
ACCESS EXCLUSIVE mode. It is used to protect a table from being
modified by concurrent <command>ALTER TABLE</command>,
- <command>DROP TABLE</command> and <command>VACUUM</command>
+ <command>DROP TABLE</command> and <command>VACUUM FULL</command>
commands.
</para>
</listitem>
@@ -102,6 +105,25 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>SHARE UPDATE EXCLUSIVE MODE</term>
+ <listitem>
+ <note>
+ <para>
+ Automatically acquired by <command>VACUUM</command> (without
+ <option>FULL</option>).
+ </para>
+ </note>
+
+ <para>
+ Conflicts with SHARE UPDATE EXCLUSIVE, SHARE, SHARE ROW EXCLUSIVE,
+ EXCLUSIVE and
+ ACCESS EXCLUSIVE modes. This mode protects a table against
+ concurrent schema changes and VACUUMs.
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term>SHARE MODE</term>
<listitem>
@@ -113,9 +135,10 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
</note>
<para>
- Conflicts with ROW EXCLUSIVE, SHARE ROW EXCLUSIVE, EXCLUSIVE and
+ Conflicts with ROW EXCLUSIVE, SHARE UPDATE EXCLUSIVE,
+ SHARE ROW EXCLUSIVE, EXCLUSIVE and
ACCESS EXCLUSIVE modes. This mode protects a table against
- concurrent updates.
+ concurrent data updates.
</para>
</listitem>
</varlistentry>
@@ -125,14 +148,14 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<listitem>
<note>
<para>
- This is like EXCLUSIVE MODE, but allows SHARE ROW locks
+ This is like EXCLUSIVE MODE, but allows ROW SHARE locks
by others.
</para>
</note>
<para>
- Conflicts with ROW EXCLUSIVE, SHARE, SHARE ROW EXCLUSIVE,
- EXCLUSIVE and ACCESS EXCLUSIVE modes.
+ Conflicts with ROW EXCLUSIVE, SHARE UPDATE EXCLUSIVE, SHARE,
+ SHARE ROW EXCLUSIVE, EXCLUSIVE and ACCESS EXCLUSIVE modes.
</para>
</listitem>
</varlistentry>
@@ -149,7 +172,8 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
</note>
<para>
- Conflicts with ROW SHARE, ROW EXCLUSIVE, SHARE, SHARE ROW EXCLUSIVE,
+ Conflicts with ROW SHARE, ROW EXCLUSIVE, SHARE UPDATE EXCLUSIVE,
+ SHARE, SHARE ROW EXCLUSIVE,
EXCLUSIVE and ACCESS EXCLUSIVE modes.
</para>
</listitem>
@@ -161,9 +185,10 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<note>
<para>
Automatically acquired by <command>ALTER TABLE</command>,
- <command>DROP TABLE</command>, <command>VACUUM</command> statements.
- This is the most restrictive lock mode which conflicts with all other
- lock modes and protects a locked table from any concurrent operations.
+ <command>DROP TABLE</command>, <command>VACUUM FULL</command>
+ statements.
+ This is the most restrictive lock mode which
+ protects a locked table from any concurrent operations.
</para>
</note>
@@ -174,6 +199,10 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
lock mode option).
</para>
</note>
+
+ <para>
+ Conflicts with all lock modes.
+ </para>
</listitem>
</varlistentry>
</variablelist>
@@ -241,7 +270,11 @@ ERROR <replaceable class="PARAMETER">name</replaceable>: Table does not exist.
<term>EXCLUSIVE</term>
<listitem>
<para>
- Exclusive lock that prevents other locks from being granted.
+ An exclusive lock prevents other locks of the same type from being
+ granted. (Note: ROW EXCLUSIVE mode does not follow this naming
+ convention perfectly, since it is shared at the level of the table;
+ it is exclusive only with respect to specific rows that are being
+ updated.)
</para>
</listitem>
</varlistentry>
@@ -250,7 +283,8 @@ ERROR <replaceable class="PARAMETER">name</replaceable>: Table does not exist.
<term>SHARE</term>
<listitem>
<para>
- Allows others to share lock. Prevents EXCLUSIVE locks.
+ A shared lock allows others to also hold the same type of lock,
+ but prevents the corresponding EXCLUSIVE lock from being granted.
</para>
</listitem>
</varlistentry>
@@ -273,13 +307,6 @@ ERROR <replaceable class="PARAMETER">name</replaceable>: Table does not exist.
</listitem>
</varlistentry>
</variablelist>
-
- <note>
- <para>
- If EXCLUSIVE or SHARE are not specified, EXCLUSIVE is assumed.
- Locks exist for the duration of the transaction.
- </para>
- </note>
</para>
<para>
@@ -370,8 +397,8 @@ ERROR <replaceable class="PARAMETER">name</replaceable>: Table does not exist.
</para>
<para>
- Except for ACCESS SHARE/EXCLUSIVE lock modes, all other
- <productname>Postgres</productname> lock modes and the
+ Except for ACCESS SHARE, ACCESS EXCLUSIVE, and SHARE UPDATE EXCLUSIVE lock
+ modes, the <productname>Postgres</productname> lock modes and the
<command>LOCK TABLE</command> syntax are compatible with those
present in <productname>Oracle</productname>.
</para>
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index cf518f3cadd691c7dd446af64747d98b81f94f39..7e6f782984e53657fe8af0b2c478e64f71639407 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.233 2001/06/30 22:03:25 petere Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.234 2001/07/09 22:18:33 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -153,7 +153,7 @@ static void doNegateFloat(Value *v);
%type <list> createdb_opt_list, createdb_opt_item
%type <ival> opt_lock, lock_type
-%type <boolean> opt_lmode, opt_force
+%type <boolean> opt_force
%type <ival> user_createdb_clause, user_createuser_clause
%type <str> user_passwd_clause
@@ -3277,18 +3277,18 @@ LockStmt: LOCK_P opt_table relation_name opt_lock
}
;
-opt_lock: IN lock_type MODE { $$ = $2; }
+opt_lock: IN lock_type MODE { $$ = $2; }
| /*EMPTY*/ { $$ = AccessExclusiveLock; }
;
-lock_type: SHARE ROW EXCLUSIVE { $$ = ShareRowExclusiveLock; }
- | ROW opt_lmode { $$ = ($2? RowShareLock: RowExclusiveLock); }
- | ACCESS opt_lmode { $$ = ($2? AccessShareLock: AccessExclusiveLock); }
- | opt_lmode { $$ = ($1? ShareLock: ExclusiveLock); }
- ;
-
-opt_lmode: SHARE { $$ = TRUE; }
- | EXCLUSIVE { $$ = FALSE; }
+lock_type: ACCESS SHARE { $$ = AccessShareLock; }
+ | ROW SHARE { $$ = RowShareLock; }
+ | ROW EXCLUSIVE { $$ = RowExclusiveLock; }
+ | SHARE UPDATE EXCLUSIVE { $$ = ShareUpdateExclusiveLock; }
+ | SHARE { $$ = ShareLock; }
+ | SHARE ROW EXCLUSIVE { $$ = ShareRowExclusiveLock; }
+ | EXCLUSIVE { $$ = ExclusiveLock; }
+ | ACCESS EXCLUSIVE { $$ = AccessExclusiveLock; }
;
diff --git a/src/backend/storage/lmgr/lmgr.c b/src/backend/storage/lmgr/lmgr.c
index fa3812a87eb246b5d9f484e360b5969f8ba46c3b..10861348e800c986f97c2343157b4aa64d894816 100644
--- a/src/backend/storage/lmgr/lmgr.c
+++ b/src/backend/storage/lmgr/lmgr.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lmgr.c,v 1.48 2001/06/22 00:04:59 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lmgr.c,v 1.49 2001/07/09 22:18:33 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -33,25 +33,35 @@ static LOCKMASK LockConflicts[] = {
(1 << ExclusiveLock) | (1 << AccessExclusiveLock),
/* RowExclusiveLock */
- (1 << ExclusiveLock) | (1 << ShareRowExclusiveLock) | (1 << ShareLock) |
- (1 << AccessExclusiveLock),
+ (1 << ShareLock) | (1 << ShareRowExclusiveLock) |
+ (1 << ExclusiveLock) | (1 << AccessExclusiveLock),
+
+ /* ShareUpdateExclusiveLock */
+ (1 << ShareUpdateExclusiveLock) |
+ (1 << ShareLock) | (1 << ShareRowExclusiveLock) |
+ (1 << ExclusiveLock) | (1 << AccessExclusiveLock),
/* ShareLock */
- (1 << ExclusiveLock) | (1 << ShareRowExclusiveLock) |
- (1 << RowExclusiveLock) | (1 << AccessExclusiveLock),
+ (1 << RowExclusiveLock) | (1 << ShareUpdateExclusiveLock) |
+ (1 << ShareRowExclusiveLock) |
+ (1 << ExclusiveLock) | (1 << AccessExclusiveLock),
/* ShareRowExclusiveLock */
- (1 << ExclusiveLock) | (1 << ShareRowExclusiveLock) |
- (1 << ShareLock) | (1 << RowExclusiveLock) | (1 << AccessExclusiveLock),
+ (1 << RowExclusiveLock) | (1 << ShareUpdateExclusiveLock) |
+ (1 << ShareLock) | (1 << ShareRowExclusiveLock) |
+ (1 << ExclusiveLock) | (1 << AccessExclusiveLock),
/* ExclusiveLock */
- (1 << ExclusiveLock) | (1 << ShareRowExclusiveLock) | (1 << ShareLock) |
- (1 << RowExclusiveLock) | (1 << RowShareLock) | (1 << AccessExclusiveLock),
+ (1 << RowShareLock) |
+ (1 << RowExclusiveLock) | (1 << ShareUpdateExclusiveLock) |
+ (1 << ShareLock) | (1 << ShareRowExclusiveLock) |
+ (1 << ExclusiveLock) | (1 << AccessExclusiveLock),
/* AccessExclusiveLock */
- (1 << ExclusiveLock) | (1 << ShareRowExclusiveLock) | (1 << ShareLock) |
- (1 << RowExclusiveLock) | (1 << RowShareLock) |
- (1 << AccessExclusiveLock) | (1 << AccessShareLock)
+ (1 << AccessShareLock) | (1 << RowShareLock) |
+ (1 << RowExclusiveLock) | (1 << ShareUpdateExclusiveLock) |
+ (1 << ShareLock) | (1 << ShareRowExclusiveLock) |
+ (1 << ExclusiveLock) | (1 << AccessExclusiveLock)
};
@@ -63,14 +73,16 @@ static int LockPrios[] = {
2,
/* RowExclusiveLock */
3,
- /* ShareLock */
+ /* ShareUpdateExclusiveLock */
4,
- /* ShareRowExclusiveLock */
+ /* ShareLock */
5,
- /* ExclusiveLock */
+ /* ShareRowExclusiveLock */
6,
+ /* ExclusiveLock */
+ 7,
/* AccessExclusiveLock */
- 7
+ 8
};
LOCKMETHOD LockTableId = (LOCKMETHOD) NULL;
diff --git a/src/backend/storage/lmgr/lock.c b/src/backend/storage/lmgr/lock.c
index 3eb010482749117420e9c0b758ec28dfc00a43c9..cff407a4a81db635baca8c32cda88325a1c7ad6a 100644
--- a/src/backend/storage/lmgr/lock.c
+++ b/src/backend/storage/lmgr/lock.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lock.c,v 1.90 2001/06/27 23:31:39 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lock.c,v 1.91 2001/07/09 22:18:33 tgl Exp $
*
* NOTES
* Outside modules can create a lock table and acquire/release
@@ -58,6 +58,7 @@ static char *lock_mode_names[] =
"AccessShareLock",
"RowShareLock",
"RowExclusiveLock",
+ "ShareUpdateExclusiveLock",
"ShareLock",
"ShareRowExclusiveLock",
"ExclusiveLock",
diff --git a/src/include/storage/lmgr.h b/src/include/storage/lmgr.h
index c279ef63f2a0299a9d1eea2f21831ea1f544cfaa..1fb490e6d69fb49382a5d05626843b50d94c5332 100644
--- a/src/include/storage/lmgr.h
+++ b/src/include/storage/lmgr.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: lmgr.h,v 1.31 2001/06/22 00:04:59 tgl Exp $
+ * $Id: lmgr.h,v 1.32 2001/07/09 22:18:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -25,13 +25,14 @@
#define AccessShareLock 1 /* SELECT */
#define RowShareLock 2 /* SELECT FOR UPDATE */
#define RowExclusiveLock 3 /* INSERT, UPDATE, DELETE */
-#define ShareLock 4 /* CREATE INDEX */
-#define ShareRowExclusiveLock 5 /* like EXCLUSIVE MODE, allows
- * SHARE ROW */
-#define ExclusiveLock 6 /* blocks ROW SHARE/SELECT...FOR
+#define ShareUpdateExclusiveLock 4 /* VACUUM (non-FULL) */
+#define ShareLock 5 /* CREATE INDEX */
+#define ShareRowExclusiveLock 6 /* like EXCLUSIVE MODE, but allows
+ * ROW SHARE */
+#define ExclusiveLock 7 /* blocks ROW SHARE/SELECT...FOR
* UPDATE */
-#define AccessExclusiveLock 7 /* ALTER TABLE, DROP TABLE,
- * VACUUM, and unqualified LOCK
+#define AccessExclusiveLock 8 /* ALTER TABLE, DROP TABLE,
+ * VACUUM FULL, and unqualified LOCK
* TABLE */
/*
diff --git a/src/include/storage/lock.h b/src/include/storage/lock.h
index 30a13649e43a48504bde9c16a230db35334ad890..1010e6760b3b83dabd45a96cd832a7f4d860dbeb 100644
--- a/src/include/storage/lock.h
+++ b/src/include/storage/lock.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: lock.h,v 1.50 2001/06/27 23:31:39 tgl Exp $
+ * $Id: lock.h,v 1.51 2001/07/09 22:18:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -49,7 +49,7 @@ typedef int LOCKMODE;
typedef int LOCKMETHOD;
/* MAX_LOCKMODES cannot be larger than the # of bits in LOCKMASK */
-#define MAX_LOCKMODES 8
+#define MAX_LOCKMODES 10
/*
* MAX_LOCK_METHODS corresponds to the number of spin locks allocated in
@@ -91,7 +91,7 @@ typedef int LOCKMETHOD;
*
* prio -- each lockmode has a priority, so, for example, waiting
* writers can be given priority over readers (to avoid
- * starvation).
+ * starvation). XXX this field is not actually used at present!
*
* masterlock -- synchronizes access to the table
*/
diff --git a/src/interfaces/ecpg/preproc/preproc.y b/src/interfaces/ecpg/preproc/preproc.y
index 2228c125d8a7aa8f02a7a91f6cd23032cb8851f6..e0626025d8f825355e00b213d06b9aae7a6967e1 100644
--- a/src/interfaces/ecpg/preproc/preproc.y
+++ b/src/interfaces/ecpg/preproc/preproc.y
@@ -326,7 +326,7 @@ make_name(void)
%type <str> createdb_opt_list opt_encoding OptInherit Geometric
%type <str> DropdbStmt ClusterStmt grantee RevokeStmt Bit bit
%type <str> GrantStmt privileges operation_commalist operation PosAllConst
-%type <str> opt_cursor opt_lmode ConstraintsSetStmt comment_tg AllConst
+%type <str> opt_cursor ConstraintsSetStmt comment_tg AllConst
%type <str> case_expr when_clause_list case_default case_arg when_clause
%type <str> select_clause opt_select_limit select_limit_value ConstraintTimeSpec
%type <str> select_offset_value ReindexStmt join_type opt_boolean
@@ -2440,15 +2440,15 @@ opt_lock: IN lock_type MODE { $$ = cat_str(3, make_str("in"), $2, ma
| /*EMPTY*/ { $$ = EMPTY;}
;
-lock_type: SHARE ROW EXCLUSIVE { $$ = make_str("share row exclusive"); }
- | ROW opt_lmode { $$ = cat2_str(make_str("row"), $2);}
- | ACCESS opt_lmode { $$ = cat2_str(make_str("access"), $2);}
- | opt_lmode { $$ = $1; }
- ;
-
-opt_lmode: SHARE { $$ = make_str("share"); }
- | EXCLUSIVE { $$ = make_str("exclusive"); }
- ;
+lock_type: ACCESS SHARE { $$ = make_str("access share"); }
+ | ROW SHARE { $$ = make_str("access share"); }
+ | ROW EXCLUSIVE { $$ = make_str("row exclusive"); }
+ | SHARE UPDATE EXCLUSIVE { $$ = make_str("share update exclusive"); }
+ | SHARE { $$ = make_str("share"); }
+ | SHARE ROW EXCLUSIVE { $$ = make_str("share row exclusive"); }
+ | EXCLUSIVE { $$ = make_str("exclusive"); }
+ | ACCESS EXCLUSIVE { $$ = make_str("access exclusive"); }
+ ;
/*****************************************************************************
*