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Document encode(bytea, 'escape')'s behavior correctly.

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I changed this in commit fd15dba543, but
missed the fact that the SGML documentation of the function specified
exactly what it did.  Well, one of the two places where it's specified
documented that --- probably I looked at the other place and thought
nothing needed to be done.  Sync the two places where encode() and
decode() are described.
This commit is contained in:
Tom Lane
2013-03-28 23:14:58 -04:00
parent 723acc99be
commit d2b8d060c4
1 changed files with 12 additions and 8 deletions
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20
doc/src/sgml/func.sgml
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@ -1505,7 +1505,8 @@
<entry>
Encode binary data into a textual representation. Supported
formats are: <literal>base64</>, <literal>hex</>, <literal>escape</>.
<literal>escape</> merely outputs null bytes as <literal>\000</> and
<literal>escape</> converts zero bytes and high-bit-set bytes to
octal sequences (<literal>\</><replaceable>nnn</>) and
doubles backslashes.
</entry>
<entry><literal>encode(E'123\\000\\001', 'base64')</literal></entry>
@ -3020,12 +3021,12 @@
<primary>decode</primary>
</indexterm>
<literal><function>decode(<parameter>string</parameter> <type>text</type>,
<parameter>type</parameter> <type>text</type>)</function></literal>
<parameter>format</parameter> <type>text</type>)</function></literal>
</entry>
<entry><type>bytea</type></entry>
<entry>
Decode binary string from <parameter>string</parameter> previously
encoded with <function>encode</>. Parameter type is same as in <function>encode</>.
Decode binary data from textual representation in <parameter>string</>.
Options for <parameter>format</> are same as in <function>encode</>.
</entry>
<entry><literal>decode(E'123\\000456', 'escape')</literal></entry>
<entry><literal>123\000456</literal></entry>
@ -3036,13 +3037,16 @@
<indexterm>
<primary>encode</primary>
</indexterm>
<literal><function>encode(<parameter>string</parameter> <type>bytea</type>,
<parameter>type</parameter> <type>text</type>)</function></literal>
<literal><function>encode(<parameter>data</parameter> <type>bytea</type>,
<parameter>format</parameter> <type>text</type>)</function></literal>
</entry>
<entry><type>text</type></entry>
<entry>
Encode binary string to <acronym>ASCII</acronym>-only representation. Supported
types are: <literal>base64</>, <literal>hex</>, <literal>escape</>.
Encode binary data into a textual representation. Supported
formats are: <literal>base64</>, <literal>hex</>, <literal>escape</>.
<literal>escape</> converts zero bytes and high-bit-set bytes to
octal sequences (<literal>\</><replaceable>nnn</>) and
doubles backslashes.
</entry>
<entry><literal>encode(E'123\\000456'::bytea, 'escape')</literal></entry>
<entry><literal>123\000456</literal></entry>