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author	Itagaki Takahiro <itagaki.takahiro@oss.ntt.co.jp>
	Mon, 1 Feb 2010 03:14:45 +0000 (03:14 +0000)
committer	Itagaki Takahiro <itagaki.takahiro@oss.ntt.co.jp>
	Mon, 1 Feb 2010 03:14:45 +0000 (03:14 +0000)
commit	d1b33c1077442fa4c40f67e63d00fd3677283660
tree	725b64afe0b311f0ee39397b4db6370885c3b61f	tree
parent	daaf91ee2363a2c6ec8d88f679e398d8a3c07fc7	commit \| diff

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.

Andres' PG stuff

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doc/src/sgml/func.sgml		diff \| blob \| blame \| history
src/backend/utils/adt/varlena.c		diff \| blob \| blame \| history
src/include/catalog/catversion.h		diff \| blob \| blame \| history
src/include/catalog/pg_aggregate.h		diff \| blob \| blame \| history
src/include/catalog/pg_proc.h		diff \| blob \| blame \| history
src/include/utils/builtins.h		diff \| blob \| blame \| history
src/test/regress/expected/aggregates.out		diff \| blob \| blame \| history
src/test/regress/sql/aggregates.sql		diff \| blob \| blame \| history