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Change nextval and other sequence functions to specify their sequence

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argument as a 'regclass' value instead of a text string.  The frontend
conversion of text string to pg_class OID is now encapsulated as an
implicitly-invocable coercion from text to regclass.  This provides
backwards compatibility to the old behavior when the sequence argument
is explicitly typed as 'text'.  When the argument is just an unadorned
literal string, it will be taken as 'regclass', which means that the
stored representation will be an OID.  This solves longstanding problems
with renaming sequences that are referenced in default expressions, as
well as new-in-8.1 problems with renaming such sequences' schemas or
moving them to another schema.  All per recent discussion.
Along the way, fix some rather serious problems in dbmirror's support
for mirroring sequence operations (int4 vs int8 confusion for instance).
This commit is contained in:
Tom Lane
2005-10-02 23:50:16 +00:00
parent 1b61ee3c69
commit aa731ed843
25 changed files with 515 additions and 342 deletions
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3
src/include/utils/builtins.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.264 2005/09/16 05:35:41 neilc Exp $
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.265 2005/10/02 23:50:13 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -482,6 +482,7 @@ extern Datum regtypein(PG_FUNCTION_ARGS);
extern Datum regtypeout(PG_FUNCTION_ARGS);
extern Datum regtyperecv(PG_FUNCTION_ARGS);
extern Datum regtypesend(PG_FUNCTION_ARGS);
extern Datum text_regclass(PG_FUNCTION_ARGS);
extern List *stringToQualifiedNameList(const char *string, const char *caller);
extern char *format_procedure(Oid procedure_oid);
extern char *format_operator(Oid operator_oid);