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Update documentation for pg_get_serial_sequence() function.

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This commit is contained in:
Bruce Momjian 2007-01-30 02:39:27 +00:00
parent a635c08fa1
commit ae875d318e
2 changed files with 16 additions and 8 deletions
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20
doc/src/sgml/func.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.353 2007/01/29 13:24:30 petere Exp $ --> <!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.354 2007/01/30 02:39:27 momjian Exp $ -->
<chapter id="functions"> <chapter id="functions">
<title>Functions and Operators</title> <title>Functions and Operators</title>
@ -9892,12 +9892,18 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
</para> </para>
<para> <para>
<function>pg_get_serial_sequence</function> fetches the name of the <function>pg_get_serial_sequence</function> returns the name of the
sequence associated with a column, or NULL if there is no sequence sequence associated with a column, or NULL if no sequence is associated
associated with the column. The result is suitably formatted for passing with the column. The first input parameter is a table name with
to the sequence functions (see <xref linkend="functions-sequence">). optional schema, and the second parameter is a column name. Because
This association can be modified or removed with <command>ALTER SEQUENCE the first parameter is potentially a schema and table, it is not treated
OWNED BY</>. (The function probably should have been called as a double-quoted identifier, meaning it is lowercased by default,
while the second parameter, being just a column name, is treated as
double-quoted and has its case preserved. The function returns a value
suitably formatted for passing to the sequence functions (see <xref
linkend="functions-sequence">). This association can be modified or
removed with <command>ALTER SEQUENCE OWNED BY</>. (The function
probably should have been called
<function>pg_get_owned_sequence</function>; its name reflects the fact <function>pg_get_owned_sequence</function>; its name reflects the fact
that it's typically used with <type>serial</> or <type>bigserial</> that it's typically used with <type>serial</> or <type>bigserial</>
columns.) columns.)

4
src/backend/utils/adt/ruleutils.c
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@ -9,7 +9,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.246 2007/01/25 04:17:46 momjian Exp $ * $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.247 2007/01/30 02:39:27 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -1265,6 +1265,8 @@ pg_get_userbyid(PG_FUNCTION_ARGS)
* pg_get_serial_sequence * pg_get_serial_sequence
* Get the name of the sequence used by a serial column, * Get the name of the sequence used by a serial column,
* formatted suitably for passing to setval, nextval or currval. * formatted suitably for passing to setval, nextval or currval.
* First parameter is not treated as double-quoted, second parameter
* is --- see documentation for reason.
*/ */
Datum Datum
pg_get_serial_sequence(PG_FUNCTION_ARGS) pg_get_serial_sequence(PG_FUNCTION_ARGS)