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Attached is an update to contrib/tablefunc. It introduces a new
function, connectby(), which can serve as a reference implementation for the changes made in the last few days -- namely the ability of a function to return an entire tuplestore, and the ability of a function to make use of the query provided "expected" tuple description. Description: connectby(text relname, text keyid_fld, text parent_keyid_fld, text start_with, int max_depth [, text branch_delim]) - returns keyid, parent_keyid, level, and an optional branch string - requires anonymous composite type syntax in the FROM clause. See the instructions in the documentation below. Joe Conway
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@@ -37,4 +37,12 @@ CREATE OR REPLACE FUNCTION crosstab4(text)
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CREATE OR REPLACE FUNCTION crosstab(text,int)
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RETURNS setof record
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AS 'MODULE_PATHNAME','crosstab' LANGUAGE 'c' STABLE STRICT;
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AS 'MODULE_PATHNAME','crosstab' LANGUAGE 'c' STABLE STRICT;
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CREATE OR REPLACE FUNCTION connectby(text,text,text,text,int,text)
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RETURNS setof record
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AS 'MODULE_PATHNAME','connectby_text' LANGUAGE 'c' STABLE STRICT;
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CREATE OR REPLACE FUNCTION connectby(text,text,text,text,int)
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RETURNS setof record
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AS 'MODULE_PATHNAME','connectby_text' LANGUAGE 'c' STABLE STRICT;
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