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docs: remove unnecessary references to old PG versions

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Bruce Momjian
2014-02-24 12:56:37 -05:00
parent 4bad548d98
commit 6f14a6f703
16 changed files with 27 additions and 140 deletions
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11
doc/src/sgml/ref/create_cast.sgml
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@@ -331,17 +331,6 @@ SELECT CAST ( 2 AS numeric ) + 4.0;
mostly because of requirements of the SQL standard.)
</para>
<para>
Prior to <productname>PostgreSQL</> 7.3, every function that had
the same name as a data type, returned that data type, and took one
argument of a different type was automatically a cast function.
This convention has been abandoned in face of the introduction of
schemas and to be able to represent binary-coercible casts in the
system catalogs. The built-in cast functions still follow this naming
scheme, but they have to be shown as casts in the system catalog
<structname>pg_cast</> as well.
</para>
<para>
While not required, it is recommended that you continue to follow this old
convention of naming cast implementation functions after the target data