diff options
| author | Itagaki Takahiro <itagaki.takahiro@gmail.com> | 2010-02-01 03:14:45 +0000 |
|---|---|---|
| committer | Itagaki Takahiro <itagaki.takahiro@gmail.com> | 2010-02-01 03:14:45 +0000 |
| commit | 9ea9918e37689fbc9ed43532b8828652b5ea90cd (patch) | |
| tree | f512d7e150549dd403f0266374d7dbcfa460d8ed /src/include/utils/builtins.h | |
| parent | ee3a81f0a03d0da128689df92a84a24a337645ec (diff) | |
| download | postgresql-9ea9918e37689fbc9ed43532b8828652b5ea90cd.tar.gz postgresql-9ea9918e37689fbc9ed43532b8828652b5ea90cd.zip | |
Add string_agg aggregate functions. The one argument version concatenates
the input values into a string. The two argument version also does the same
thing, but inserts delimiters between elements.
Original patch by Pavel Stehule, reviewed by David E. Wheeler and me.
Diffstat (limited to 'src/include/utils/builtins.h')
| -rw-r--r-- | src/include/utils/builtins.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/include/utils/builtins.h b/src/include/utils/builtins.h index 11eb8acacc7..6381c3d7356 100644 --- a/src/include/utils/builtins.h +++ b/src/include/utils/builtins.h @@ -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 1.345 2010/01/25 20:55:32 tgl Exp $ + * $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.346 2010/02/01 03:14:45 itagaki Exp $ * *------------------------------------------------------------------------- */ @@ -724,6 +724,10 @@ 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 */ extern Datum pgsql_version(PG_FUNCTION_ARGS); @@ -772,6 +776,9 @@ 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, |