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Commita620a76

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committed
Allow BEGIN WORK to specify transaction isolation level, like START
TRANSACTION.
1 parente439fef commita620a76

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4 files changed

+41
-11
lines changed

4 files changed

+41
-11
lines changed

‎doc/src/sgml/ref/begin.sgml‎

Lines changed: 16 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$PostgreSQL: pgsql/doc/src/sgml/ref/begin.sgml,v 1.27 2003/11/29 19:51:38 pgsql Exp $
2+
$PostgreSQL: pgsql/doc/src/sgml/ref/begin.sgml,v 1.28 2004/01/10 02:21:08 momjian Exp $
33
PostgreSQL documentation
44
-->
55

@@ -21,6 +21,8 @@ PostgreSQL documentation
2121
<refsynopsisdiv>
2222
<synopsis>
2323
BEGIN [ WORK | TRANSACTION ]
24+
[ ISOLATION LEVEL { READ UNCOMMITTED | READ COMMITTED | REPEATABLE READ | SERIALIZABLE } ]
25+
[ READ WRITE | READ ONLY ]
2426
</synopsis>
2527
</refsynopsisdiv>
2628

@@ -49,6 +51,13 @@ BEGIN [ WORK | TRANSACTION ]
4951
other sessions will be unable to see the intermediate states
5052
wherein not all the related updates have been done.
5153
</para>
54+
55+
<para>
56+
If the isolation level or read/write mode is specified, the new
57+
transaction has those characteristics, as if
58+
<xref linkend="sql-set-transaction" endterm="sql-set-transaction-title">
59+
was executed.
60+
</para>
5261
</refsect1>
5362

5463
<refsect1>
@@ -65,6 +74,12 @@ BEGIN [ WORK | TRANSACTION ]
6574
</listitem>
6675
</varlistentry>
6776
</variablelist>
77+
78+
<para>
79+
See under <xref linkend="sql-set-transaction"
80+
endterm="sql-set-transaction-title"> about the meaning of the
81+
other parameters.
82+
</para>
6883
</refsect1>
6984

7085
<refsect1>

‎doc/src/sgml/ref/start_transaction.sgml‎

Lines changed: 3 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$PostgreSQL: pgsql/doc/src/sgml/ref/start_transaction.sgml,v 1.9 2003/11/29 19:51:39 pgsql Exp $
2+
$PostgreSQL: pgsql/doc/src/sgml/ref/start_transaction.sgml,v 1.10 2004/01/10 02:21:08 momjian Exp $
33
PostgreSQL documentation
44
-->
55

@@ -33,9 +33,8 @@ START TRANSACTION
3333
This command begins a new transaction. If the isolation level or
3434
read/write mode is specified, the new transaction has those
3535
characteristics, as if <xref linkend="sql-set-transaction"
36-
endterm="sql-set-transaction-title"> was executed. In all other
37-
respects, the behavior of this command is identical to the <xref
38-
linkend="sql-begin" endterm="sql-begin-title"> command.
36+
endterm="sql-set-transaction-title"> was executed. It is the same
37+
as the <xref linkend="sql-begin" endterm="sql-begin-title"> command.
3938
</para>
4039
</refsect1>
4140

‎src/backend/parser/gram.y‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,7 @@
1111
*
1212
*
1313
* IDENTIFICATION
14-
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.443 2004/01/07 18:56:27 neilc Exp $
14+
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.444 2004/01/10 02:21:08 momjian Exp $
1515
*
1616
* HISTORY
1717
* AUTHORDATEMAJOR EVENT
@@ -3674,11 +3674,11 @@ TransactionStmt:
36743674
n->options = NIL;
36753675
$$ = (Node *)n;
36763676
}
3677-
| BEGIN_P opt_transaction
3677+
| BEGIN_P opt_transaction transaction_mode_list_or_empty
36783678
{
36793679
TransactionStmt *n = makeNode(TransactionStmt);
36803680
n->kind = TRANS_STMT_BEGIN;
3681-
n->options =NIL;
3681+
n->options =$3;
36823682
$$ = (Node *)n;
36833683
}
36843684
| START TRANSACTION transaction_mode_list_or_empty

‎src/bin/psql/tab-complete.c‎

Lines changed: 19 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
33
*
44
* Copyright (c) 2000-2003, PostgreSQL Global Development Group
55
*
6-
* $PostgreSQL: pgsql/src/bin/psql/tab-complete.c,v 1.97 2003/12/01 22:21:54 momjian Exp $
6+
* $PostgreSQL: pgsql/src/bin/psql/tab-complete.c,v 1.98 2004/01/10 02:21:08 momjian Exp $
77
*/
88

99
/*----------------------------------------------------------------------
@@ -723,6 +723,18 @@ psql_completion(char *text, int start, int end)
723723
elseif (strcasecmp(prev2_wd,"ANALYZE")==0)
724724
COMPLETE_WITH_CONST(";");
725725

726+
/* BEGIN, COMMIT, ROLLBACK, ABORT, */
727+
elseif (strcasecmp(prev_wd,"BEGIN")==0||
728+
strcasecmp(prev_wd,"END")==0||
729+
strcasecmp(prev_wd,"COMMIT")==0||
730+
strcasecmp(prev_wd,"ROLLBACK")==0||
731+
strcasecmp(prev_wd,"ABORT")==0)
732+
{
733+
staticconstchar*constlist_TRANS[]=
734+
{"WORK","TRANSACTION",NULL};
735+
736+
COMPLETE_WITH_LIST(list_TRANS);
737+
}
726738
/* CLUSTER */
727739
/* If the previous word is CLUSTER, produce list of indexes. */
728740
elseif (strcasecmp(prev_wd,"CLUSTER")==0)
@@ -1099,10 +1111,14 @@ psql_completion(char *text, int start, int end)
10991111
strcasecmp(prev_wd,"SHOW")==0)
11001112
COMPLETE_WITH_LIST(pgsql_variables);
11011113
/* Complete "SET TRANSACTION" */
1102-
elseif ((strcasecmp(prev2_wd,"SET")==0
1103-
&&strcasecmp(prev_wd,"TRANSACTION")==0)
1114+
elseif ((strcasecmp(prev2_wd,"SET")==0&&
1115+
strcasecmp(prev_wd,"TRANSACTION")==0)
11041116
|| (strcasecmp(prev2_wd,"START")==0
11051117
&&strcasecmp(prev_wd,"TRANSACTION")==0)
1118+
|| (strcasecmp(prev2_wd,"BEGIN")==0
1119+
&&strcasecmp(prev_wd,"WORK")==0)
1120+
|| (strcasecmp(prev2_wd,"BEGIN")==0
1121+
&&strcasecmp(prev_wd,"TRANSACTION")==0)
11061122
|| (strcasecmp(prev4_wd,"SESSION")==0
11071123
&&strcasecmp(prev3_wd,"CHARACTERISTICS")==0
11081124
&&strcasecmp(prev2_wd,"AS")==0

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