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Add transforms feature

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This provides a mechanism for specifying conversions between SQL data
types and procedural languages.  As examples, there are transforms
for hstore and ltree for PL/Perl and PL/Python.

reviews by Pavel Stěhule and Andres Freund
This commit is contained in:
Peter Eisentraut
2015-04-26 10:33:14 -04:00
parent f320cbb615
commit cac7658205
101 changed files with 6034 additions and 2811 deletions
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21
doc/src/sgml/ref/alter_extension.sgml
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@@ -52,6 +52,7 @@ ALTER EXTENSION <replaceable class="PARAMETER">name</replaceable> DROP <replacea
TEXT SEARCH DICTIONARY <replaceable class="PARAMETER">object_name</replaceable> |
TEXT SEARCH PARSER <replaceable class="PARAMETER">object_name</replaceable> |
TEXT SEARCH TEMPLATE <replaceable class="PARAMETER">object_name</replaceable> |
TRANSFORM FOR <replaceable>type_name</replaceable> LANGUAGE <replaceable>lang_name</replaceable> |
TYPE <replaceable class="PARAMETER">object_name</replaceable> |
VIEW <replaceable class="PARAMETER">object_name</replaceable>
@@ -259,6 +260,26 @@ ALTER EXTENSION <replaceable class="PARAMETER">name</replaceable> DROP <replacea
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>type_name</replaceable></term>
<listitem>
<para>
The name of the data type of the transform.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>lang_name</replaceable></term>
<listitem>
<para>
The name of the language of the transform.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>