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Allow optional SAVEPOINT keyword in RELEASE and ROLLBACK TO, for greater
compliance with SQL2003 spec syntax. Oliver Jowett
This commit is contained in:
Tom Lane
@ -1,5 +1,5 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/allfiles.sgml,v 1.60 2004/08/01 17:32:13 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/ref/allfiles.sgml,v 1.61 2004/08/12 19:12:21 tgl Exp $
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||||
PostgreSQL documentation
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||||
Complete list of usable sgml source files in this directory.
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-->
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||||
@ -88,7 +88,7 @@ Complete list of usable sgml source files in this directory.
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<!entity notify system "notify.sgml">
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<!entity prepare system "prepare.sgml">
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<!entity reindex system "reindex.sgml">
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<!entity releaseSavepoint system "release.sgml">
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<!entity releaseSavepoint system "release_savepoint.sgml">
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<!entity reset system "reset.sgml">
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<!entity revoke system "revoke.sgml">
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<!entity rollback system "rollback.sgml">
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@ -1,31 +1,31 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/release.sgml,v 1.1 2004/08/01 17:32:13 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/ref/release_savepoint.sgml,v 1.1 2004/08/12 19:12:21 tgl Exp $
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PostgreSQL documentation
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-->
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<refentry id="SQL-RELEASE">
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<refentry id="SQL-RELEASE-SAVEPOINT">
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<refmeta>
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<refentrytitle id="SQL-RELEASE-TITLE">RELEASE</refentrytitle>
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<refentrytitle id="SQL-RELEASE-SAVEPOINT-TITLE">RELEASE SAVEPOINT</refentrytitle>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>RELEASE</refname>
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<refname>RELEASE SAVEPOINT</refname>
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<refpurpose>destroy a previously defined savepoint</refpurpose>
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</refnamediv>
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<indexterm zone="sql-release">
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<primary>RELEASE</primary>
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<indexterm zone="sql-release-savepoint">
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<primary>RELEASE SAVEPOINT</primary>
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</indexterm>
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<indexterm zone="sql-release">
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<indexterm zone="sql-release-savepoint">
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<primary>savepoints</primary>
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<secondary>releasing</secondary>
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</indexterm>
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<refsynopsisdiv>
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<synopsis>
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RELEASE <replaceable>savepoint_name</replaceable>
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RELEASE [ SAVEPOINT ] <replaceable>savepoint_name</replaceable>
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</synopsis>
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</refsynopsisdiv>
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@ -33,7 +33,7 @@ RELEASE <replaceable>savepoint_name</replaceable>
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<title>Description</title>
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<para>
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<command>RELEASE</command> destroys a savepoint previously defined
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<command>RELEASE SAVEPOINT</command> destroys a savepoint previously defined
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in the current transaction.
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</para>
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@ -48,7 +48,7 @@ RELEASE <replaceable>savepoint_name</replaceable>
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</para>
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<para>
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<command>RELEASE</command> also destroys all savepoints that were
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<command>RELEASE SAVEPOINT</command> also destroys all savepoints that were
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established after the named savepoint was established.
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</para>
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</refsect1>
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@ -97,7 +97,7 @@ BEGIN;
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INSERT INTO table VALUES (3);
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SAVEPOINT my_savepoint;
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INSERT INTO table VALUES (4);
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RELEASE my_savepoint;
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RELEASE SAVEPOINT my_savepoint;
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COMMIT;
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</programlisting>
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The above transaction will insert both 3 and 4.
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@ -108,7 +108,9 @@ COMMIT;
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<title>Compatibility</title>
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<para>
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RELEASE is fully conforming to the SQL standard.
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The SQL2003 standard specifies that the keyword SAVEPOINT is mandatory.
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<productname>PostgreSQL</productname> allows the SAVEPOINT keyword to be
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omitted. Otherwise, this command is fully conforming.
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</para>
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</refsect1>
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@ -1,21 +1,21 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/rollback_to.sgml,v 1.1 2004/08/01 17:32:13 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/ref/rollback_to.sgml,v 1.2 2004/08/12 19:12:21 tgl Exp $
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PostgreSQL documentation
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-->
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<refentry id="SQL-ROLLBACK-TO">
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<refmeta>
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<refentrytitle id="SQL-ROLLBACK-TO-TITLE">ROLLBACK TO</refentrytitle>
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<refentrytitle id="SQL-ROLLBACK-TO-TITLE">ROLLBACK TO SAVEPOINT</refentrytitle>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>ROLLBACK TO</refname>
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<refname>ROLLBACK TO SAVEPOINT</refname>
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<refpurpose>roll back to a savepoint</refpurpose>
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</refnamediv>
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<indexterm zone="sql-rollback-to">
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<primary>ROLLBACK TO</primary>
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<primary>ROLLBACK TO SAVEPOINT</primary>
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</indexterm>
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<indexterm zone="sql-rollback-to">
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@ -25,7 +25,7 @@ PostgreSQL documentation
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<refsynopsisdiv>
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<synopsis>
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ROLLBACK TO <replaceable>savepoint_name</replaceable>
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ROLLBACK [ WORK | TRANSACTION ] TO [ SAVEPOINT ] <replaceable>savepoint_name</replaceable>
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</synopsis>
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</refsynopsisdiv>
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@ -39,7 +39,7 @@ ROLLBACK TO <replaceable>savepoint_name</replaceable>
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</para>
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<para>
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<command>ROLLBACK TO</> implicitly destroys all savepoints that
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<command>ROLLBACK TO SAVEPOINT</> implicitly destroys all savepoints that
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were established after the named savepoint.
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</para>
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</refsect1>
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@ -63,9 +63,9 @@ ROLLBACK TO <replaceable>savepoint_name</replaceable>
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<title>Notes</title>
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<para>
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Use <xref linkend="SQL-RELEASE" endterm="SQL-RELEASE-TITLE"> to
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destroy a savepoint without discarding the effects of commands executed
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after it was established.
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Use <xref linkend="SQL-RELEASE-SAVEPOINT"
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endterm="SQL-RELEASE-SAVEPOINT-TITLE"> to destroy a savepoint without
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discarding the effects of commands executed after it was established.
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</para>
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<para>
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@ -81,7 +81,7 @@ ROLLBACK TO <replaceable>savepoint_name</replaceable>
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left it pointing to (that is, <command>FETCH</> is not rolled back).
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A cursor whose execution causes a transaction to abort is put in a
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can't-execute state, so while the transaction can be restored using
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<command>ROLLBACK TO</>, the cursor can no longer be used.
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<command>ROLLBACK TO SAVEPOINT</>, the cursor can no longer be used.
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</para>
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</refsect1>
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@ -92,7 +92,7 @@ ROLLBACK TO <replaceable>savepoint_name</replaceable>
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To undo the effects of the commands executed after <literal>my_savepoint</literal>
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was established:
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<programlisting>
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ROLLBACK TO my_savepoint;
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ROLLBACK TO SAVEPOINT my_savepoint;
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</programlisting>
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</para>
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@ -110,7 +110,7 @@ FETCH 1 FROM foo;
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----------
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1
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ROLLBACK TO foo;
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ROLLBACK TO SAVEPOINT foo;
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FETCH 1 FROM foo;
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?column?
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@ -128,7 +128,13 @@ COMMIT;
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<title>Compatibility</title>
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<para>
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This command is fully SQL standard conforming.
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The SQL2003 standard specifies that the keyword SAVEPOINT is mandatory.
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<productname>PostgreSQL</productname> and <productname>Oracle</productname>
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allow the SAVEPOINT keyword to be omitted. SQL2003 allows only
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WORK, not TRANSACTION, as a noise word after ROLLBACK. Also, SQL2003
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has an optional clause AND [ NO ] CHAIN which is not currently supported
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by <productname>PostgreSQL</productname>. Otherwise, this command is
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fully conforming.
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</para>
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</refsect1>
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@ -139,7 +145,7 @@ COMMIT;
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<member><xref linkend="sql-begin" endterm="sql-begin-title"></member>
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<member><xref linkend="sql-commit" endterm="sql-commit-title"></member>
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<member><xref linkend="sql-savepoint" endterm="sql-savepoint-title"></member>
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<member><xref linkend="sql-release" endterm="sql-release-title"></member>
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<member><xref linkend="sql-release-savepoint" endterm="sql-release-savepoint-title"></member>
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<member><xref linkend="sql-rollback" endterm="sql-rollback-title"></member>
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</simplelist>
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</refsect1>
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@ -1,5 +1,5 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/savepoint.sgml,v 1.1 2004/08/01 17:32:13 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/ref/savepoint.sgml,v 1.2 2004/08/12 19:12:21 tgl Exp $
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PostgreSQL documentation
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-->
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@ -64,8 +64,8 @@ SAVEPOINT <replaceable>savepoint_name</replaceable>
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<para>
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Use <xref linkend="SQL-ROLLBACK-TO" endterm="SQL-ROLLBACK-TO-TITLE"> to
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rollback to a savepoint. Use <xref linkend="SQL-RELEASE"
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endterm="SQL-RELEASE-TITLE"> to destroy a savepoint, keeping
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rollback to a savepoint. Use <xref linkend="SQL-RELEASE-SAVEPOINT"
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endterm="SQL-RELEASE-SAVEPOINT-TITLE"> to destroy a savepoint, keeping
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the effects of commands executed after it was established.
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</para>
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@ -86,7 +86,7 @@ BEGIN;
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INSERT INTO table VALUES (1);
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SAVEPOINT my_savepoint;
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INSERT INTO table VALUES (2);
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ROLLBACK TO my_savepoint;
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ROLLBACK TO SAVEPOINT my_savepoint;
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INSERT INTO table VALUES (3);
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COMMIT;
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</programlisting>
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@ -100,7 +100,7 @@ BEGIN;
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INSERT INTO table VALUES (3);
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SAVEPOINT my_savepoint;
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INSERT INTO table VALUES (4);
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RELEASE my_savepoint;
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RELEASE SAVEPOINT my_savepoint;
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COMMIT;
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</programlisting>
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The above transaction will insert both 3 and 4.
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@ -116,8 +116,8 @@ COMMIT;
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<productname>PostgreSQL</>, the old savepoint is kept, though only the more
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recent one will be used when rolling back or releasing. (Releasing the
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newer savepoint will cause the older one to again become accessible to
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<command>ROLLBACK TO</> and <command>RELEASE</>.)
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Other than that, <command>SAVEPOINT</command> is fully SQL conforming.
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<command>ROLLBACK TO SAVEPOINT</> and <command>RELEASE SAVEPOINT</>.)
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Otherwise, <command>SAVEPOINT</command> is fully SQL conforming.
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</para>
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</refsect1>
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@ -128,7 +128,7 @@ COMMIT;
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<member><xref linkend="sql-begin" endterm="sql-begin-title"></member>
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<member><xref linkend="sql-rollback" endterm="sql-rollback-title"></member>
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<member><xref linkend="sql-rollback-to" endterm="sql-rollback-to-title"></member>
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<member><xref linkend="sql-release" endterm="sql-release-title"></member>
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<member><xref linkend="sql-release-savepoint" endterm="sql-release-savepoint-title"></member>
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<member><xref linkend="sql-commit" endterm="sql-commit-title"></member>
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</simplelist>
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</refsect1>
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@ -11,7 +11,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.469 2004/08/02 04:26:35 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.470 2004/08/12 19:12:21 tgl Exp $
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*
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* HISTORY
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* AUTHOR DATE MAJOR EVENT
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@ -3982,6 +3982,14 @@ TransactionStmt:
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(Node *)makeString($2)));
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$$ = (Node *)n;
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}
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| RELEASE SAVEPOINT ColId
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{
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TransactionStmt *n = makeNode(TransactionStmt);
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n->kind = TRANS_STMT_RELEASE;
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n->options = list_make1(makeDefElem("savepoint_name",
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(Node *)makeString($3)));
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$$ = (Node *)n;
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}
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| RELEASE ColId
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{
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TransactionStmt *n = makeNode(TransactionStmt);
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@ -3990,12 +3998,20 @@ TransactionStmt:
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(Node *)makeString($2)));
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$$ = (Node *)n;
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}
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| ROLLBACK TO ColId
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| ROLLBACK opt_transaction TO SAVEPOINT ColId
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{
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TransactionStmt *n = makeNode(TransactionStmt);
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n->kind = TRANS_STMT_ROLLBACK_TO;
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n->options = list_make1(makeDefElem("savepoint_name",
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(Node *)makeString($3)));
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(Node *)makeString($5)));
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$$ = (Node *)n;
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}
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| ROLLBACK opt_transaction TO ColId
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{
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TransactionStmt *n = makeNode(TransactionStmt);
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n->kind = TRANS_STMT_ROLLBACK_TO;
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n->options = list_make1(makeDefElem("savepoint_name",
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(Node *)makeString($4)));
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$$ = (Node *)n;
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}
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;
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@ -10,7 +10,7 @@
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*
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*
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* IDENTIFICATION
|
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* $PostgreSQL: pgsql/src/backend/tcop/utility.c,v 1.223 2004/08/02 01:30:45 tgl Exp $
|
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* $PostgreSQL: pgsql/src/backend/tcop/utility.c,v 1.224 2004/08/12 19:12:21 tgl Exp $
|
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*
|
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*-------------------------------------------------------------------------
|
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*/
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@ -388,12 +388,12 @@ ProcessUtility(Node *parsetree,
|
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break;
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|
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case TRANS_STMT_RELEASE:
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RequireTransactionChain((void *)stmt, "RELEASE");
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RequireTransactionChain((void *)stmt, "RELEASE SAVEPOINT");
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ReleaseSavepoint(stmt->options);
|
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break;
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|
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case TRANS_STMT_ROLLBACK_TO:
|
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RequireTransactionChain((void *)stmt, "ROLLBACK TO");
|
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RequireTransactionChain((void *)stmt, "ROLLBACK TO SAVEPOINT");
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RollbackToSavepoint(stmt->options);
|
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/*
|
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* CommitTransactionCommand is in charge
|
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|
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@ -77,11 +77,11 @@ BEGIN;
|
||||
SAVEPOINT one;
|
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DROP TABLE foo;
|
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CREATE TABLE bar (a int);
|
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ROLLBACK TO one;
|
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RELEASE one;
|
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ROLLBACK TO SAVEPOINT one;
|
||||
RELEASE SAVEPOINT one;
|
||||
SAVEPOINT two;
|
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CREATE TABLE baz (a int);
|
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RELEASE two;
|
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RELEASE SAVEPOINT two;
|
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drop TABLE foobar;
|
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CREATE TABLE barbaz (a int);
|
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COMMIT;
|
||||
@ -110,16 +110,16 @@ BEGIN;
|
||||
INSERT into bar VALUES (1);
|
||||
ERROR: relation "bar" does not exist
|
||||
ROLLBACK TO one;
|
||||
RELEASE one;
|
||||
RELEASE SAVEPOINT one;
|
||||
SAVEPOINT two;
|
||||
INSERT into barbaz VALUES (1);
|
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RELEASE two;
|
||||
SAVEPOINT three;
|
||||
SAVEPOINT four;
|
||||
INSERT INTO foo VALUES (2);
|
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RELEASE four;
|
||||
ROLLBACK TO three;
|
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RELEASE three;
|
||||
RELEASE SAVEPOINT four;
|
||||
ROLLBACK TO SAVEPOINT three;
|
||||
RELEASE SAVEPOINT three;
|
||||
INSERT INTO foo VALUES (3);
|
||||
COMMIT;
|
||||
SELECT * FROM foo; -- should have 1 and 3
|
||||
@ -140,8 +140,8 @@ BEGIN;
|
||||
SAVEPOINT one;
|
||||
SELECT foo;
|
||||
ERROR: column "foo" does not exist
|
||||
ROLLBACK TO one;
|
||||
RELEASE one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
RELEASE SAVEPOINT one;
|
||||
SAVEPOINT two;
|
||||
CREATE TABLE savepoints (a int);
|
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SAVEPOINT three;
|
||||
@ -150,7 +150,7 @@ ERROR: column "foo" does not exist
|
||||
INSERT INTO savepoints VALUES (2);
|
||||
SAVEPOINT five;
|
||||
INSERT INTO savepoints VALUES (3);
|
||||
ROLLBACK TO five;
|
||||
ROLLBACK TO SAVEPOINT five;
|
||||
COMMIT;
|
||||
COMMIT; -- should not be in a transaction block
|
||||
WARNING: there is no transaction in progress
|
||||
@ -165,7 +165,7 @@ SELECT * FROM savepoints;
|
||||
BEGIN;
|
||||
SAVEPOINT one;
|
||||
DELETE FROM savepoints WHERE a=1;
|
||||
RELEASE one;
|
||||
RELEASE SAVEPOINT one;
|
||||
SAVEPOINT two;
|
||||
DELETE FROM savepoints WHERE a=1;
|
||||
SAVEPOINT three;
|
||||
@ -200,7 +200,7 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (6);
|
||||
SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (7);
|
||||
RELEASE one;
|
||||
RELEASE SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (8);
|
||||
COMMIT;
|
||||
-- rows 6 and 8 should have been created by the same xact
|
||||
@ -221,7 +221,7 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (9);
|
||||
SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (10);
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (11);
|
||||
COMMIT;
|
||||
SELECT a FROM savepoints WHERE a in (9, 10, 11);
|
||||
@ -244,7 +244,7 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (13);
|
||||
SAVEPOINT two;
|
||||
INSERT INTO savepoints VALUES (14);
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (15);
|
||||
SAVEPOINT two;
|
||||
INSERT INTO savepoints VALUES (16);
|
||||
@ -266,9 +266,9 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (19);
|
||||
SAVEPOINT two;
|
||||
INSERT INTO savepoints VALUES (20);
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (21);
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (22);
|
||||
COMMIT;
|
||||
SELECT a FROM savepoints WHERE a BETWEEN 18 AND 22;
|
||||
@ -282,10 +282,10 @@ DROP TABLE savepoints;
|
||||
-- only in a transaction block:
|
||||
SAVEPOINT one;
|
||||
ERROR: SAVEPOINT may only be used in transaction blocks
|
||||
ROLLBACK TO one;
|
||||
ERROR: ROLLBACK TO may only be used in transaction blocks
|
||||
RELEASE one;
|
||||
ERROR: RELEASE may only be used in transaction blocks
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
ERROR: ROLLBACK TO SAVEPOINT may only be used in transaction blocks
|
||||
RELEASE SAVEPOINT one;
|
||||
ERROR: RELEASE SAVEPOINT may only be used in transaction blocks
|
||||
-- Only "rollback to" allowed in aborted state
|
||||
BEGIN;
|
||||
SAVEPOINT one;
|
||||
@ -293,9 +293,9 @@ BEGIN;
|
||||
ERROR: division by zero
|
||||
SAVEPOINT two; -- ignored till the end of ...
|
||||
ERROR: current transaction is aborted, commands ignored until end of transaction block
|
||||
RELEASE one; -- ignored till the end of ...
|
||||
RELEASE SAVEPOINT one; -- ignored till the end of ...
|
||||
ERROR: current transaction is aborted, commands ignored until end of transaction block
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
SELECT 1;
|
||||
?column?
|
||||
----------
|
||||
@ -328,7 +328,7 @@ BEGIN;
|
||||
9
|
||||
(10 rows)
|
||||
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
FETCH 10 FROM c;
|
||||
unique2
|
||||
---------
|
||||
@ -344,7 +344,7 @@ BEGIN;
|
||||
19
|
||||
(10 rows)
|
||||
|
||||
RELEASE one;
|
||||
RELEASE SAVEPOINT one;
|
||||
FETCH 10 FROM c;
|
||||
unique2
|
||||
---------
|
||||
@ -365,12 +365,12 @@ BEGIN;
|
||||
SAVEPOINT two;
|
||||
FETCH 10 FROM c;
|
||||
ERROR: division by zero
|
||||
ROLLBACK TO two;
|
||||
ROLLBACK TO SAVEPOINT two;
|
||||
-- c is now dead to the world ...
|
||||
FETCH 10 FROM c;
|
||||
ERROR: portal "c" cannot be run
|
||||
ROLLBACK TO two;
|
||||
RELEASE two;
|
||||
ROLLBACK TO SAVEPOINT two;
|
||||
RELEASE SAVEPOINT two;
|
||||
FETCH 10 FROM c;
|
||||
ERROR: portal "c" cannot be run
|
||||
COMMIT;
|
||||
|
||||
@ -64,11 +64,11 @@ BEGIN;
|
||||
SAVEPOINT one;
|
||||
DROP TABLE foo;
|
||||
CREATE TABLE bar (a int);
|
||||
ROLLBACK TO one;
|
||||
RELEASE one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
RELEASE SAVEPOINT one;
|
||||
SAVEPOINT two;
|
||||
CREATE TABLE baz (a int);
|
||||
RELEASE two;
|
||||
RELEASE SAVEPOINT two;
|
||||
drop TABLE foobar;
|
||||
CREATE TABLE barbaz (a int);
|
||||
COMMIT;
|
||||
@ -84,16 +84,16 @@ BEGIN;
|
||||
SAVEPOINT one;
|
||||
INSERT into bar VALUES (1);
|
||||
ROLLBACK TO one;
|
||||
RELEASE one;
|
||||
RELEASE SAVEPOINT one;
|
||||
SAVEPOINT two;
|
||||
INSERT into barbaz VALUES (1);
|
||||
RELEASE two;
|
||||
SAVEPOINT three;
|
||||
SAVEPOINT four;
|
||||
INSERT INTO foo VALUES (2);
|
||||
RELEASE four;
|
||||
ROLLBACK TO three;
|
||||
RELEASE three;
|
||||
RELEASE SAVEPOINT four;
|
||||
ROLLBACK TO SAVEPOINT three;
|
||||
RELEASE SAVEPOINT three;
|
||||
INSERT INTO foo VALUES (3);
|
||||
COMMIT;
|
||||
SELECT * FROM foo; -- should have 1 and 3
|
||||
@ -103,8 +103,8 @@ SELECT * FROM barbaz; -- should have 1
|
||||
BEGIN;
|
||||
SAVEPOINT one;
|
||||
SELECT foo;
|
||||
ROLLBACK TO one;
|
||||
RELEASE one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
RELEASE SAVEPOINT one;
|
||||
SAVEPOINT two;
|
||||
CREATE TABLE savepoints (a int);
|
||||
SAVEPOINT three;
|
||||
@ -113,7 +113,7 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (2);
|
||||
SAVEPOINT five;
|
||||
INSERT INTO savepoints VALUES (3);
|
||||
ROLLBACK TO five;
|
||||
ROLLBACK TO SAVEPOINT five;
|
||||
COMMIT;
|
||||
COMMIT; -- should not be in a transaction block
|
||||
SELECT * FROM savepoints;
|
||||
@ -122,7 +122,7 @@ SELECT * FROM savepoints;
|
||||
BEGIN;
|
||||
SAVEPOINT one;
|
||||
DELETE FROM savepoints WHERE a=1;
|
||||
RELEASE one;
|
||||
RELEASE SAVEPOINT one;
|
||||
SAVEPOINT two;
|
||||
DELETE FROM savepoints WHERE a=1;
|
||||
SAVEPOINT three;
|
||||
@ -145,7 +145,7 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (6);
|
||||
SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (7);
|
||||
RELEASE one;
|
||||
RELEASE SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (8);
|
||||
COMMIT;
|
||||
-- rows 6 and 8 should have been created by the same xact
|
||||
@ -157,7 +157,7 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (9);
|
||||
SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (10);
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (11);
|
||||
COMMIT;
|
||||
SELECT a FROM savepoints WHERE a in (9, 10, 11);
|
||||
@ -170,7 +170,7 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (13);
|
||||
SAVEPOINT two;
|
||||
INSERT INTO savepoints VALUES (14);
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (15);
|
||||
SAVEPOINT two;
|
||||
INSERT INTO savepoints VALUES (16);
|
||||
@ -185,9 +185,9 @@ BEGIN;
|
||||
INSERT INTO savepoints VALUES (19);
|
||||
SAVEPOINT two;
|
||||
INSERT INTO savepoints VALUES (20);
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (21);
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
INSERT INTO savepoints VALUES (22);
|
||||
COMMIT;
|
||||
SELECT a FROM savepoints WHERE a BETWEEN 18 AND 22;
|
||||
@ -196,16 +196,16 @@ DROP TABLE savepoints;
|
||||
|
||||
-- only in a transaction block:
|
||||
SAVEPOINT one;
|
||||
ROLLBACK TO one;
|
||||
RELEASE one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
RELEASE SAVEPOINT one;
|
||||
|
||||
-- Only "rollback to" allowed in aborted state
|
||||
BEGIN;
|
||||
SAVEPOINT one;
|
||||
SELECT 0/0;
|
||||
SAVEPOINT two; -- ignored till the end of ...
|
||||
RELEASE one; -- ignored till the end of ...
|
||||
ROLLBACK TO one;
|
||||
RELEASE SAVEPOINT one; -- ignored till the end of ...
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
SELECT 1;
|
||||
COMMIT;
|
||||
SELECT 1; -- this should work
|
||||
@ -215,19 +215,19 @@ BEGIN;
|
||||
DECLARE c CURSOR FOR SELECT unique2 FROM tenk1;
|
||||
SAVEPOINT one;
|
||||
FETCH 10 FROM c;
|
||||
ROLLBACK TO one;
|
||||
ROLLBACK TO SAVEPOINT one;
|
||||
FETCH 10 FROM c;
|
||||
RELEASE one;
|
||||
RELEASE SAVEPOINT one;
|
||||
FETCH 10 FROM c;
|
||||
CLOSE c;
|
||||
DECLARE c CURSOR FOR SELECT unique2/0 FROM tenk1;
|
||||
SAVEPOINT two;
|
||||
FETCH 10 FROM c;
|
||||
ROLLBACK TO two;
|
||||
ROLLBACK TO SAVEPOINT two;
|
||||
-- c is now dead to the world ...
|
||||
FETCH 10 FROM c;
|
||||
ROLLBACK TO two;
|
||||
RELEASE two;
|
||||
ROLLBACK TO SAVEPOINT two;
|
||||
RELEASE SAVEPOINT two;
|
||||
FETCH 10 FROM c;
|
||||
COMMIT;
|
||||
|
||||
|
||||
Reference in New Issue
Block a user