diff options
Diffstat (limited to 'doc/src/sgml/xfunc.sgml')
| -rw-r--r-- | doc/src/sgml/xfunc.sgml | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/doc/src/sgml/xfunc.sgml b/doc/src/sgml/xfunc.sgml index e2b10703ee..7b2d2b0ad3 100644 --- a/doc/src/sgml/xfunc.sgml +++ b/doc/src/sgml/xfunc.sgml @@ -1739,6 +1739,13 @@ PG_MODULE_MAGIC; /* 4-byte integer, passed by value */ typedef int int4; </programlisting> + + (The actual PostgreSQL C code calls this type <type>int32</type>, because + it is a convention in C that <type>int<replaceable>XX</replaceable></type> + means <replaceable>XX</replaceable> <emphasis>bits</emphasis>. Note + therefore also that the C type <type>int8</type> is 1 byte in size. The + SQL type <type>int8</type> is called <type>int64</type> in C. See also + <xref linkend="xfunc-c-type-table">.) </para> <para> @@ -1801,7 +1808,7 @@ typedef struct <programlisting> typedef struct { - int4 length; + int32 length; char data[1]; } text; </programlisting> @@ -1913,7 +1920,7 @@ memcpy(destination->data, buffer, 40); </row> <row> <entry><type>smallint</type> (<type>int2</type>)</entry> - <entry><type>int2</type> or <type>int16</type></entry> + <entry><type>int16</type></entry> <entry><filename>postgres.h</filename></entry> </row> <row> @@ -1923,7 +1930,7 @@ memcpy(destination->data, buffer, 40); </row> <row> <entry><type>integer</type> (<type>int4</type>)</entry> - <entry><type>int4</type> or <type>int32</type></entry> + <entry><type>int32</type></entry> <entry><filename>postgres.h</filename></entry> </row> <row> |