Since SQL:2003, the array size specification in the SQL ARRAY syntax has

petere · petere · commit f7ad874ca860 · 2008-10-29T11:24:53.000Z
been optional.
diff --git a/doc/src/sgml/array.sgml b/doc/src/sgml/array.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/array.sgml,v 1.66 2008/04/28 14:48:57 alvherre Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/array.sgml,v 1.67 2008/10/29 11:24:52 petere Exp $ -->
 
 <sect1 id="arrays">
  <title>Arrays</title>
@@ -76,9 +76,12 @@ CREATE TABLE tictactoe (
 <programlisting>
     pay_by_quarter  integer ARRAY[4],
 </programlisting>
-  This syntax requires an integer constant to denote the array size.
+  Or, if no array size is to be specified:
+<programlisting>
+    pay_by_quarter  integer ARRAY,
+</programlisting>
   As before, however, <productname>PostgreSQL</> does not enforce the
-  size restriction.
+  size restriction in any case.
  </para>
  </sect2>
 
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
@@ -11,7 +11,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.631 2008/10/28 14:09:45 petere Exp $
+ *	  $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.632 2008/10/29 11:24:53 petere Exp $
  *
  * HISTORY
  *	  AUTHOR			DATE			MAJOR EVENT
@@ -7124,19 +7124,29 @@ Typename:	SimpleTypename opt_array_bounds
 					$$->arrayBounds = $3;
 					$$->setof = TRUE;
 				}
+			/* SQL standard syntax, currently only one-dimensional */
 			| SimpleTypename ARRAY '[' Iconst ']'
 				{
-					/* SQL99's redundant syntax */
 					$$ = $1;
 					$$->arrayBounds = list_make1(makeInteger($4));
 				}
 			| SETOF SimpleTypename ARRAY '[' Iconst ']'
 				{
-					/* SQL99's redundant syntax */
 					$$ = $2;
 					$$->arrayBounds = list_make1(makeInteger($5));
 					$$->setof = TRUE;
 				}
+			| SimpleTypename ARRAY
+				{
+					$$ = $1;
+					$$->arrayBounds = list_make1(makeInteger(-1));
+				}
+			| SETOF SimpleTypename ARRAY
+				{
+					$$ = $2;
+					$$->arrayBounds = list_make1(makeInteger(-1));
+					$$->setof = TRUE;
+				}
 		;
 
 opt_array_bounds:

Original file line number	Diff line number	Diff line change
`@@ -11,7 +11,7 @@`
`11`	`11`	`*`
`12`	`12`	`*`
`13`	`13`	`* IDENTIFICATION`
`14`		`- * $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.631 2008/10/28 14:09:45 petere Exp $`
	`14`	`+ * $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.632 2008/10/29 11:24:53 petere Exp $`
`15`	`15`	`*`
`16`	`16`	`* HISTORY`
`17`	`17`	`* AUTHOR DATE MAJOR EVENT`
`@@ -7124,19 +7124,29 @@ Typename: SimpleTypename opt_array_bounds`
`7124`	`7124`	`$$->arrayBounds = $3;`
`7125`	`7125`	`$$->setof = TRUE;`
`7126`	`7126`	`}`
	`7127`	`+ /* SQL standard syntax, currently only one-dimensional */`
`7127`	`7128`	`\| SimpleTypename ARRAY '[' Iconst ']'`
`7128`	`7129`	`{`
`7129`		`- /* SQL99's redundant syntax */`
`7130`	`7130`	`$$ = $1;`
`7131`	`7131`	`$$->arrayBounds = list_make1(makeInteger($4));`
`7132`	`7132`	`}`
`7133`	`7133`	`\| SETOF SimpleTypename ARRAY '[' Iconst ']'`
`7134`	`7134`	`{`
`7135`		`- /* SQL99's redundant syntax */`
`7136`	`7135`	`$$ = $2;`
`7137`	`7136`	`$$->arrayBounds = list_make1(makeInteger($5));`
`7138`	`7137`	`$$->setof = TRUE;`
`7139`	`7138`	`}`
	`7139`	`+ \| SimpleTypename ARRAY`
	`7140`	`+ {`
	`7141`	`+ $$ = $1;`
	`7142`	`+ $$->arrayBounds = list_make1(makeInteger(-1));`
	`7143`	`+ }`
	`7144`	`+ \| SETOF SimpleTypename ARRAY`
	`7145`	`+ {`
	`7146`	`+ $$ = $2;`
	`7147`	`+ $$->arrayBounds = list_make1(makeInteger(-1));`
	`7148`	`+ $$->setof = TRUE;`
	`7149`	`+ }`
`7140`	`7150`	`;`
`7141`	`7151`
`7142`	`7152`	`opt_array_bounds:`