doc: add float as an alias for double precision.

tglsfdc · tglsfdc · commit 04b7ff3cd33c · 2025-08-07T18:04:45.000-04:00
Although the "Floating-Point Types" section says that "float" data type is taken to mean "double precision", this information was not reflected in the data type table that lists all data type aliases. Reported-by: alexander.kjall@hafslund.no Author: Euler Taveira <euler@eulerto.com> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/175456294638.800.12038559679827947313@wrigleys.postgresql.org Backpatch-through: 13
diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
@@ -117,7 +117,7 @@
 
       <row>
        <entry><type>double precision</type></entry>
-       <entry><type>float8</type></entry>
+       <entry><type>float</type>, <type>float8</type></entry>
        <entry>double precision floating-point number (8 bytes)</entry>
       </row>
 
