Doc: de-document unimplemented geometric operators.

tglsfdc · tglsfdc · commit a80fd2ae4cd4 · 2021-12-13T17:49:36.000-05:00
In commit 791090b, I made an effort to fill in documentation for all geometric operators listed in pg_operator. However, it now appears that at least some of the omissions may have been intentional, because some of those operator entries point at unimplemented stub functions. Remove those from the docs again. (In HEAD, poly_distance stays, because c5c192d just added an implementation for it.) Per complaint from Anton Voloshin. Discussion: https://postgr.es/m/3426566.1638832718@sss.pgh.pa.us
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
@@ -10641,7 +10641,7 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
        </para>
        <para>
         Computes the center point.
-        Available for <type>box</type>, <type>lseg</type>, <type>path</type>,
+        Available for <type>box</type>, <type>lseg</type>,
         <type>polygon</type>, <type>circle</type>.
        </para>
        <para>
@@ -10707,8 +10707,6 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
         (<type>point</type>, <type>line</type>),
         (<type>lseg</type>, <type>box</type>),
         (<type>lseg</type>, <type>lseg</type>),
-        (<type>lseg</type>, <type>line</type>),
-        (<type>line</type>, <type>box</type>),
         (<type>line</type>, <type>lseg</type>).
        </para>
        <para>
@@ -10724,11 +10722,11 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
        </para>
        <para>
         Computes the distance between the objects.
-        Available for all seven geometric types, for all combinations
+        Available for all geometric types except <type>polygon</type>,
+        for all combinations
         of <type>point</type> with another geometric type, and for
         these additional pairs of types:
         (<type>box</type>, <type>lseg</type>),
-        (<type>box</type>, <type>line</type>),
         (<type>lseg</type>, <type>line</type>),
         (<type>polygon</type>, <type>circle</type>)
         (and the commutator cases).
