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Rename bytea_agg to string_agg and add delimiter argument

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Per mailing list discussion, we would like to keep the bytea functions
parallel to the text functions, so rename bytea_agg to string_agg,
which already exists for text.

Also, to satisfy the rule that we don't want aggregate functions of
the same name with a different number of arguments, add a delimiter
argument, just like string_agg for text already has.
This commit is contained in:
Peter Eisentraut
2012-04-13 21:36:59 +03:00
parent 64e1309c76
commit c0cc526e8b
8 changed files with 52 additions and 44 deletions
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27
doc/src/sgml/func.sgml
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@ -3160,6 +3160,11 @@
right within each byte; for example bit 0 is the least significant bit of
the first byte, and bit 15 is the most significant bit of the second byte.
</para>
<para>
See also the aggregate function <function>string_agg</function> in
<xref linkend="functions-aggregate">.
</para>
</sect1>
@ -10962,24 +10967,6 @@ SELECT NULLIF(value, '(none)') ...
<entry>true if at least one input value is true, otherwise false</entry>
</row>
<row>
<entry>
<indexterm>
<primary>bytea_agg</primary>
</indexterm>
<function>
bytea_agg(<replaceable class="parameter">expression</replaceable>)
</function>
</entry>
<entry>
<type>bytea</type>
</entry>
<entry>
<type>bytea</type>
</entry>
<entry>input values concatenated into a bytea</entry>
</row>
<row>
<entry>
<indexterm>
@ -11061,10 +11048,10 @@ SELECT NULLIF(value, '(none)') ...
</function>
</entry>
<entry>
<type>text</type>, <type>text</type>
(<type>text</type>, <type>text</type>) or (<type>bytea</type>, <type>bytea</type>)
</entry>
<entry>
<type>text</type>
same as argument types
</entry>
<entry>input values concatenated into a string, separated by delimiter</entry>
</row>