diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/pageinspect.sgml | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/doc/src/sgml/pageinspect.sgml b/doc/src/sgml/pageinspect.sgml index a7da3364a1e..7e2e1487d79 100644 --- a/doc/src/sgml/pageinspect.sgml +++ b/doc/src/sgml/pageinspect.sgml @@ -244,7 +244,7 @@ test=# SELECT * FROM heap_page_item_attrs(get_raw_page('pg_class', 0), 'pg_class <varlistentry> <term> - <function>heap_tuple_infomask_flags(t_infomask integer, t_infomask2 integer, decode_combined bool) returns text[]</function> + <function>heap_tuple_infomask_flags(t_infomask integer, t_infomask2 integer) returns record</function> <indexterm> <primary>heap_tuple_infomask_flags</primary> </indexterm> @@ -255,21 +255,21 @@ test=# SELECT * FROM heap_page_item_attrs(get_raw_page('pg_class', 0), 'pg_class <structfield>t_infomask</structfield> and <structfield>t_infomask2</structfield> returned by <function>heap_page_items</function> into a human-readable - array of flag names. For example: + set of arrays made of flag names, with one column for all + the flags and one column for combined flags. For example: <screen> -test=# SELECT t_ctid, heap_tuple_infomask_flags(t_infomask, t_infomask2) AS flags - FROM heap_page_items(get_raw_page('pg_class', 0)) +test=# SELECT t_ctid, raw_flags, combined_flags + FROM heap_page_items(get_raw_page('pg_class', 0)), + LATERAL heap_tuple_infomask_flags(t_infomask, t_infomask2) WHERE t_infomask IS NOT NULL OR t_infomask2 IS NOT NULL; </screen> This function should be called with the same arguments as the return attributes of <function>heap_page_items</function>. </para> <para> - If <parameter>decode_combined</parameter> is <literal>true</literal>, - combined flags like <literal>HEAP_XMIN_FROZEN</literal> are - returned instead of raw flags (<literal>HEAP_XMIN_COMMITTED</literal> - and <literal>HEAP_XMIN_INVALID</literal> in this case). Default value - is <literal>false</literal>. + Combined flags are displayed for source-level macros that take into + account the value of more than one raw bit, such as + <literal>HEAP_XMIN_FROZEN</literal>. </para> <para> See <filename>src/include/access/htup_details.h</filename> for |