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CDB_QueryTables return tables with schema

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javi
2014-06-25 19:38:29 +02:00
parent 1815096a37
commit da9b9a640f
3 changed files with 26 additions and 11 deletions
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17
scripts-available/CDB_QueryTables.sql
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@@ -22,7 +22,7 @@ BEGIN
END IF;
BEGIN
EXECUTE 'EXPLAIN (FORMAT XML) ' || rec.q INTO STRICT exp;
EXECUTE 'EXPLAIN (FORMAT XML, VERBOSE) ' || rec.q INTO STRICT exp;
EXCEPTION WHEN others THEN
-- TODO: if error is 'relation "xxxxxx" does not exist', take xxxxxx as
-- the affected table ?
@@ -33,14 +33,19 @@ BEGIN
-- Now need to extract all values of <Relation-Name>
--RAISE DEBUG 'Explain: %', exp;
-- RAISE DEBUG 'Explain: %', exp;
FOR rec2 IN WITH
inp AS ( SELECT xpath('//x:Relation-Name/text()', exp, ARRAY[ARRAY['x', 'http://www.postgresql.org/2009/explain']]) as x )
SELECT unnest(x)::name as p from inp
inp AS (
SELECT
xpath('//x:Relation-Name/text()', exp, ARRAY[ARRAY['x', 'http://www.postgresql.org/2009/explain']]) as x,
xpath('//x:Schema/text()', exp, ARRAY[ARRAY['x', 'http://www.postgresql.org/2009/explain']]) as s
)
SELECT unnest(x)::name as p, unnest(s)::name as sc from inp
LOOP
--RAISE DEBUG 'tab: %', rec2.p;
tables := array_append(tables, rec2.p);
-- RAISE DEBUG 'tab: %', rec2.p;
-- RAISE DEBUG 'sc: %', rec2.sc;
tables := array_append(tables, (rec2.sc || '.' || rec2.p)::name);
END LOOP;
-- RAISE DEBUG 'Tables: %', tables;