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Remove hstore % text[] operator; use slice() function instead.

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David Wheeler, with one small correction by me.
This commit is contained in:
Robert Haas
2010-07-02 20:36:49 +00:00
parent bb0fe9feb9
commit ce51747673
5 changed files with 33 additions and 39 deletions
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17
doc/src/sgml/hstore.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/hstore.sgml,v 1.11 2010/06/22 11:36:16 rhaas Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/hstore.sgml,v 1.12 2010/07/02 20:36:49 rhaas Exp $ -->
<sect1 id="hstore">
<title>hstore</title>
@ -120,13 +120,6 @@
<entry><literal>"a"=&gt;"b"</literal></entry>
</row>
<row>
<entry><type>hstore</> <literal>%</> <type>text[]</></entry>
<entry>extract a subset of an <type>hstore</></entry>
<entry><literal>'a=&gt;1,b=&gt;2,c=&gt;3'::hstore % ARRAY['b','c','x']</literal></entry>
<entry><literal>"b"=&gt;"2", "c"=&gt;"3"</literal></entry>
</row>
<row>
<entry><type>hstore</> <literal>||</> <type>hstore</></entry>
<entry>concatenate <type>hstore</>s</entry>
@ -338,6 +331,14 @@ b
<entry><literal>{{a,1},{b,2}}</literal></entry>
</row>
<row>
<entry><function>slice(hstore, text[])</function></entry>
<entry><type>hstore</type></entry>
<entry>extract a subset of an <type>hstore</></entry>
<entry><literal>slice('a=&gt;1,b=&gt;2,c=&gt;3'::hstore, ARRAY['b','c','x'])</literal></entry>
<entry><literal>"b"=&gt;"2", "c"=&gt;"3"</literal></entry>
</row>
<row>
<entry><function>each(hstore)</function></entry>
<entry><type>setof(key text, value text)</type></entry>