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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-07-18 22:34:14 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-07-18 22:34:14 +0000 |
| commit | 37464a0326167ad57e54eb8aab2ae1f553252c39 (patch) | |
| tree | 97ba99b4a1ecbaa1188a4c192f4506f167637ae9 | |
| parent | 507465525e8c3e4ebf0159ac07c915dd609cd6b3 (diff) | |
| download | postgresql-37464a0326167ad57e54eb8aab2ae1f553252c39.tar.gz postgresql-37464a0326167ad57e54eb8aab2ae1f553252c39.zip | |
Fix some bogosities in geometric-function documentation: add an entry
for circle(polygon), which was missing; remove bogus entry for
point(lseg, lseg), which does not exist, and the documentation seemed to
describe lseg_interpt, which we already document as an operator not a
function. Also remove entry for box_intersect, which likewise is
preferentially used via the operator #.
| -rw-r--r-- | doc/src/sgml/func.sgml | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index 25e37f80a20..9fd6ed61f8e 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.266 2005/07/15 19:02:12 momjian Exp $ +$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.267 2005/07/18 22:34:14 tgl Exp $ PostgreSQL documentation --> @@ -5886,7 +5886,8 @@ SELECT TIMESTAMP 'now'; -- incorrect for use with DEFAULT Note that the <quote>same as</> operator, <literal>~=</>, represents the usual notion of equality for the <type>point</type>, <type>box</type>, <type>polygon</type>, and <type>circle</type> types. - Some of these types also have an <literal>=</> operator, but it compares + Some of these types also have an <literal>=</> operator, but + <literal>=</> compares for equal <emphasis>areas</> only. The other scalar comparison operators (<literal><=</> and so on) likewise compare areas for these types. </para> @@ -6082,12 +6083,6 @@ SELECT TIMESTAMP 'now'; -- incorrect for use with DEFAULT <entry><literal>area(box '((0,0),(1,1))')</literal></entry> </row> <row> - <entry><literal><function>box_intersect</function>(<type>box</>, <type>box</>)</literal></entry> - <entry><type>box</type></entry> - <entry>intersection box</entry> - <entry><literal>box_intersect(box '((0,0),(1,1))',box '((0.5,0.5),(2,2))')</literal></entry> - </row> - <row> <entry><literal><function>center</function>(<replaceable>object</>)</literal></entry> <entry><type>point</type></entry> <entry>center</entry> @@ -6216,6 +6211,12 @@ SELECT TIMESTAMP 'now'; -- incorrect for use with DEFAULT <entry><literal>circle(point '(0,0)', 2.0)</literal></entry> </row> <row> + <entry><literal><function>circle</function>(<type>polygon</type>)</literal></entry> + <entry><type>circle</type></entry> + <entry>polygon to circle</entry> + <entry><literal>circle(polygon '((0,0),(1,1),(2,0))')</literal></entry> + </row> + <row> <entry><literal><function>lseg</function>(<type>box</type>)</literal></entry> <entry><type>lseg</type></entry> <entry>box diagonal to line segment</entry> @@ -6259,12 +6260,6 @@ SELECT TIMESTAMP 'now'; -- incorrect for use with DEFAULT <entry><literal>point(lseg '((-1,0),(1,0))')</literal></entry> </row> <row> - <entry><literal><function>point</function>(<type>lseg</type>, <type>lseg</type>)</literal></entry> - <entry><type>point</type></entry> - <entry>intersection</entry> - <entry><literal>point(lseg '((-1,0),(1,0))', lseg '((-2,-2),(2,2))')</literal></entry> - </row> - <row> <entry><literal><function>point</function>(<type>polygon</type>)</literal></entry> <entry><type>point</type></entry> <entry>center of polygon</entry> |