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Disable brackets in multi-statement rules, as discussed.

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This commit is contained in:
Bruce Momjian 2002-03-10 06:00:15 +00:00
parent f20509551d
commit ee27436f6c
3 changed files with 11 additions and 15 deletions
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22
doc/src/sgml/ref/create_rule.sgml
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@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_rule.sgml,v 1.31 2002/01/24 18:28:15 tgl Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_rule.sgml,v 1.32 2002/03/10 06:00:13 momjian Exp $
PostgreSQL documentation
-->
@ -32,8 +32,6 @@ NOTHING
<replaceable class="parameter">query</replaceable>
|
( <replaceable class="parameter">query</replaceable> ; <replaceable class="parameter">query</replaceable> ... )
|
[ <replaceable class="parameter">query</replaceable> ; <replaceable class="parameter">query</replaceable> ... ]
</synopsis>
<refsect2 id="R2-SQL-CREATERULE-1">
@ -177,15 +175,15 @@ CREATE
</para>
<para>
The <replaceable class="parameter">action</replaceable> part of the rule
can consist of one or more queries. To write multiple queries, surround
them with either parentheses or square brackets. Such queries will be
performed in the specified order (whereas there are no guarantees about
the execution order of multiple rules for an object). The
<replaceable class="parameter">action</replaceable> can also be NOTHING
indicating no action. Thus, a DO INSTEAD NOTHING rule suppresses the
original query from executing (when its condition is true); a DO NOTHING
rule is useless.
The <replaceable class="parameter">action</replaceable> part of the
rule can consist of one or more queries. To write multiple queries,
surround them with parentheses. Such queries will be performed in the
specified order (whereas there are no guarantees about the execution
order of multiple rules for an object). The <replaceable
class="parameter">action</replaceable> can also be NOTHING indicating
no action. Thus, a DO INSTEAD NOTHING rule suppresses the original
query from executing (when its condition is true); a DO NOTHING rule
is useless.
</para>
<para>

3
src/backend/parser/gram.y
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@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.289 2002/03/09 17:37:16 thomas Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.290 2002/03/10 06:00:13 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -2841,7 +2841,6 @@ RuleStmt: CREATE RULE name AS
RuleActionList: NOTHING { $$ = NIL; }
| RuleActionStmt { $$ = makeList1($1); }
| '[' RuleActionMulti ']' { $$ = $2; }
| '(' RuleActionMulti ')' { $$ = $2; }
;

1
src/interfaces/ecpg/preproc/preproc.y
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@ -2153,7 +2153,6 @@ RuleStmt: CREATE RULE name AS
RuleActionList: NOTHING { $$ = make_str("nothing"); }
| RuleActionStmt { $$ = $1; }
| '[' RuleActionMulti ']' { $$ = cat_str(3, make_str("["), $2, make_str("]")); }
| '(' RuleActionMulti ')' { $$ = cat_str(3, make_str("("), $2, make_str(")")); }
;