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Remove the single-argument form of string_agg(). It added nothing much in

functionality, while creating an ambiguity in usage with ORDER BY that at
least two people have already gotten seriously confused by.  Also, add an
opr_sanity test to check that we don't in future violate the newly minted
policy of not having built-in aggregates with the same name and different
numbers of parameters.  Per discussion of a complaint from Thom Brown.
This commit is contained in:
Tom Lane
2010-08-05 18:21:19 +00:00
parent fd1843ff89
commit b0c451e145
11 changed files with 85 additions and 77 deletions

View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.352 2010/07/22 01:22:35 rhaas Exp $
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.353 2010/08/05 18:21:19 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -729,7 +729,6 @@ extern Datum unknownsend(PG_FUNCTION_ARGS);
extern Datum pg_column_size(PG_FUNCTION_ARGS);
extern Datum string_agg_transfn(PG_FUNCTION_ARGS);
extern Datum string_agg_delim_transfn(PG_FUNCTION_ARGS);
extern Datum string_agg_finalfn(PG_FUNCTION_ARGS);
/* version.c */
@ -780,9 +779,6 @@ extern Datum translate(PG_FUNCTION_ARGS);
extern Datum chr (PG_FUNCTION_ARGS);
extern Datum repeat(PG_FUNCTION_ARGS);
extern Datum ascii(PG_FUNCTION_ARGS);
extern Datum string_agg_transfn(PG_FUNCTION_ARGS);
extern Datum string_agg_delim_transfn(PG_FUNCTION_ARGS);
extern Datum string_agg_finalfn(PG_FUNCTION_ARGS);
/* inet_net_ntop.c */
extern char *inet_net_ntop(int af, const void *src, int bits,