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REL7_0_PATCHES
Bruce Momjian 26 years ago
parent 4ddc50dffa
commit f8645018bc
2 changed files with 27 additions and 21 deletions
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  1. 46
      doc/src/sgml/ref/lock.sgml
  2. 2
      src/template/aix_42

46
doc/src/sgml/ref/lock.sgml
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@ -1,5 +1,5 @@
<!-- <!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/lock.sgml,v 1.15 2000/03/23 21:38:57 momjian Exp $ $Header: /cvsroot/pgsql/doc/src/sgml/ref/lock.sgml,v 1.16 2000/03/23 22:25:35 momjian Exp $
Postgres documentation Postgres documentation
--> -->
@ -123,7 +123,7 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
</note> </note>
<para> <para>
This is the least restrictive lock mode which conflicts only with This is the least restrictive lock mode. It conflicts only with
ACCESS EXCLUSIVE mode. It is intended to protect a table being ACCESS EXCLUSIVE mode. It is intended to protect a table being
modified by concurrent <command>ALTER TABLE</command>, modified by concurrent <command>ALTER TABLE</command>,
<command>DROP TABLE</command> and <command>VACUUM</command> <command>DROP TABLE</command> and <command>VACUUM</command>
@ -137,8 +137,8 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<listitem> <listitem>
<note> <note>
<para> <para>
Automatically acquired by any <command>SELECT FOR UPDATE</command> statement. Automatically acquired by <command>SELECT...FOR UPDATE</command>.
While it is a SHARE lock, there is the intention to later upgrade While it is a shared lock, there is the intention to later upgrade
this to an EXCLUSIVE lock. this to an EXCLUSIVE lock.
</para> </para>
</note> </note>
@ -154,15 +154,15 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<listitem> <listitem>
<note> <note>
<para> <para>
Automatically acquired by any <command>UPDATE</command>, Automatically acquired by <command>UPDATE</command>,
<command>DELETE</command>, <command>INSERT</command> statement. <command>DELETE</command>, and <command>INSERT</command>
statements.
</para> </para>
</note> </note>
<para> <para>
Conflicts with SHARE, SHARE ROW EXCLUSIVE, EXCLUSIVE and Conflicts with SHARE, SHARE ROW EXCLUSIVE, EXCLUSIVE and
ACCESS EXCLUSIVE modes. Generally means that a transaction ACCESS EXCLUSIVE modes.
updated or inserted some tuples in a table.
</para> </para>
</listitem> </listitem>
</varlistentry> </varlistentry>
@ -172,8 +172,8 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<listitem> <listitem>
<note> <note>
<para> <para>
Automatically acquired by any <command>CREATE INDEX</command> statement. Automatically acquired by <command>CREATE INDEX</command>.
Share-locks entire table. Share-locks the entire table.
</para> </para>
</note> </note>
@ -188,10 +188,14 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<varlistentry> <varlistentry>
<term>SHARE ROW EXCLUSIVE MODE</term> <term>SHARE ROW EXCLUSIVE MODE</term>
<listitem> <listitem>
<note>
<para> <para>
This is like an EXCLUSIVE lock, but allows SHARE ROW locks This is like EXCLUSIVE MODE, but allows SHARE ROW locks
by others. by others.
</para>
</note>
<para>
Conflicts with ROW EXCLUSIVE, SHARE, SHARE ROW EXCLUSIVE, Conflicts with ROW EXCLUSIVE, SHARE, SHARE ROW EXCLUSIVE,
EXCLUSIVE and ACCESS EXCLUSIVE modes. EXCLUSIVE and ACCESS EXCLUSIVE modes.
</para> </para>
@ -202,11 +206,16 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<term>EXCLUSIVE MODE</term> <term>EXCLUSIVE MODE</term>
<listitem> <listitem>
<note>
<para>
This mode is yet more restrictive than SHARE ROW EXCLUSIVE.
It blocks all concurrent ROW SHARE/SELECT...FOR UPDATE queries.
</para>
</note>
<para> <para>
Conflicts with ROW SHARE, ROW EXCLUSIVE, SHARE, SHARE ROW EXCLUSIVE, Conflicts with ROW SHARE, ROW EXCLUSIVE, SHARE, SHARE ROW EXCLUSIVE,
EXCLUSIVE and ACCESS EXCLUSIVE modes. This mode is yet more EXCLUSIVE and ACCESS EXCLUSIVE modes.
restrictive than that of SHARE ROW EXCLUSIVE; it blocks all concurrent
SHARE ROW/SELECT FOR UPDATE queries.
</para> </para>
</listitem> </listitem>
</varlistentry> </varlistentry>
@ -218,14 +227,11 @@ LOCK [ TABLE ] <replaceable class="PARAMETER">name</replaceable> IN SHARE ROW EX
<para> <para>
Automatically acquired by <command>ALTER TABLE</command>, Automatically acquired by <command>ALTER TABLE</command>,
<command>DROP TABLE</command>, <command>VACUUM</command> statements. <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.
</para> </para>
</note> </note>
<para>
This is the most restrictive lock mode which conflicts with all other
lock modes and protects a locked table from any concurrent operations.
</para>
<note> <note>
<para> <para>
This lock mode is also acquired by an unqualified This lock mode is also acquired by an unqualified

2
src/template/aix_42
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@ -1,5 +1,5 @@
AROPT:crs AROPT:crs
CFLAGS:-O2 -qmaxmem=16384 -qhalt=w -qsrcmsg -qlanglvl=extended -qlonglong -qcpluscmt CFLAGS:-O2 -qmaxmem=16384 -qhalt=w -qsrcmsg -qlanglvl=extended -qlonglong
SHARED_LIB:-lc SHARED_LIB:-lc
ALL: ALL:
SRCH_INC: SRCH_INC:

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