Tom Lane wrote:
You're on the hook for docs fixes...
Here's a patch for the documentation updates. Please apply.
Thanks,
Joe
Index: doc/src/sgml/array.sgml
===
RCS file: /opt/src/cvs/pgsql-server/doc/src/sgml/array.sgml,v
retrieving revision 1.29
diff -c -r1.29 array.sgml
*** doc/src/sgml/array.sgml 9 Aug 2003 22:50:21 - 1.29
--- doc/src/sgml/array.sgml 19 Aug 2003 05:31:16 -
***
*** 162,168
expression syntax is discussed in more detail in xref
linkend=sql-syntax-array-constructors.
/para
-
/sect2
sect2
--- 162,167
***
*** 326,334
literal||/literal.
programlisting
SELECT ARRAY[1,2] || ARRAY[3,4];
!?column?
! ---
! {{1,2},{3,4}}
(1 row)
SELECT ARRAY[5,6] || ARRAY[[1,2],[3,4]];
--- 325,333
literal||/literal.
programlisting
SELECT ARRAY[1,2] || ARRAY[3,4];
! ?column?
! ---
! {1,2,3,4}
(1 row)
SELECT ARRAY[5,6] || ARRAY[[1,2],[3,4]];
***
*** 337,363
{{5,6},{1,2},{3,4}}
(1 row)
/programlisting
The concatenation operator allows a single element to be pushed on to the
beginning or end of a one-dimensional array. It also accepts two
replaceableN/-dimensional arrays, or an replaceableN/-dimensional
! and an replaceableN+1/-dimensional array. In the former case, the two
! replaceableN/-dimension arrays become outer elements of an
! replaceableN+1/-dimensional array. In the latter, the
! replaceableN/-dimensional array is added as either the first or last
! outer element of the replaceableN+1/-dimensional array.
!
! When extending an array by concatenation, the subscripts of its existing
! elements are preserved. For example, when pushing
! onto the beginning of an array with one-based subscripts, the resulting
! array has zero-based subscripts:
programlisting
SELECT array_dims(1 || ARRAY[2,3]);
array_dims
[0:2]
(1 row)
/programlisting
/para
--- 336,403
{{5,6},{1,2},{3,4}}
(1 row)
/programlisting
+ /para
+ para
The concatenation operator allows a single element to be pushed on to the
beginning or end of a one-dimensional array. It also accepts two
replaceableN/-dimensional arrays, or an replaceableN/-dimensional
! and an replaceableN+1/-dimensional array.
! /para
+ para
+ When a single element is pushed on to the beginning of a one-dimensional
+ array, the result is an array with a lower bound subscript equal to
+ the righthand operand's lower bound subscript, minus one. When a single
+ element is pushed on to the end of a one-dimensional array, the result is
+ an array retaining the lower bound of the lefthand operand. For example:
programlisting
SELECT array_dims(1 || ARRAY[2,3]);
array_dims
[0:2]
(1 row)
+
+ SELECT array_dims(ARRAY[1,2] || 3);
+ array_dims
+
+ [1:3]
+ (1 row)
+ /programlisting
+ /para
+
+ para
+ When two arrays with an equal number of dimensions are concatenated, the
+ result retains the lower bound subscript of the lefthand operand's outer
+ dimension. The result is an array comprising every element of the lefthand
+ operand followed by every element of the righthand operand. For example:
+ programlisting
+ SELECT array_dims(ARRAY[1,2] || ARRAY[3,4,5]);
+ array_dims
+
+ [1:5]
+ (1 row)
+
+ SELECT array_dims(ARRAY[[1,2],[3,4]] || ARRAY[[5,6],[7,8],[9,0]]);
+ array_dims
+
+ [1:5][1:2]
+ (1 row)
+ /programlisting
+ /para
+
+ para
+ When an replaceableN/-dimensional array is pushed on to the beginning
+ or end of an replaceableN+1/-dimensional array, the result is
+ analogous to the element-array case above. Each replaceableN/-dimensional
+ sub-array is essentially an element of the replaceableN+1/-dimensional
+ array's outer dimension. For example:
+ programlisting
+ SELECT array_dims(ARRAY[1,2] || ARRAY[[3,4],[5,6]]);
+ array_dims
+
+ [0:2][1:2]
+ (1 row)
/programlisting
/para
***
*** 386,394
(1 row)
SELECT array_cat(ARRAY[1,2], ARRAY[3,4]);
!array_cat
! ---
! {{1,2},{3,4}}
(1 row)
SELECT array_cat(ARRAY[[1,2],[3,4]], ARRAY[5,6]);
--- 426,434
(1 row)
SELECT array_cat(ARRAY[1,2], ARRAY[3,4]);
! array_cat
! ---
! {1,2,3,4}
(1 row)
SELECT array_cat(ARRAY[[1,2],[3,4]], ARRAY[5,6]);
Index: doc/src/sgml/func.sgml
===
RCS file: /opt/src/cvs/pgsql-server/doc/src/sgml/func.sgml,v
retrieving revision 1.167
diff -c -r1.167 func.sgml
*** doc/src/sgml/func.sgml 17 Aug 2003 04:52:41 - 1.167
--- doc/src/sgml/func.sgml 19 Aug 2003 04:32:27 -
***
*** 7093,7099
entry literal||/literal /entry
entryarray-to-array concatenation/entry
