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Fully qualify function calls

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This commit is contained in:
Raul Marin
2019-05-31 15:29:28 +02:00
parent 07d43275f8
commit c45ef6c540
49 changed files with 583 additions and 596 deletions
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6
scripts-available/CDB_EstimateRowCount.sql
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@@ -1,5 +1,5 @@
-- Internal function to generate stats for a table if they don't exist
CREATE OR REPLACE FUNCTION _CDB_GenerateStats(reloid REGCLASS)
CREATE OR REPLACE FUNCTION @extschema@._CDB_GenerateStats(reloid REGCLASS)
RETURNS VOID
AS $$
DECLARE
@@ -15,14 +15,14 @@ END
$$ LANGUAGE 'plpgsql' VOLATILE STRICT PARALLEL UNSAFE SECURITY DEFINER;
-- Return a row count estimate of the result of a query using statistics
CREATE OR REPLACE FUNCTION CDB_EstimateRowCount(query text)
CREATE OR REPLACE FUNCTION @extschema@.CDB_EstimateRowCount(query text)
RETURNS Numeric
AS $$
DECLARE
plan JSON;
BEGIN
-- Make sure statistics exist for all the tables of the query
PERFORM _CDB_GenerateStats(tabname) FROM unnest(CDB_QueryTablesText(query)) AS tabname;
PERFORM @extschema@._CDB_GenerateStats(tabname) FROM unnest(@extschema@.CDB_QueryTablesText(query)) AS tabname;
-- Use the query planner to obtain an estimate of the number of result rows
EXECUTE 'EXPLAIN (FORMAT JSON) ' || query INTO STRICT plan;