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try to fix combined_transition_tables

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dullbananas 2023-12-30 11:00:30 -07:00 committed by GitHub
parent 0844a7612a
commit 8d1c633378
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1 changed files with 7 additions and 27 deletions
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34
replaceable_schema.sql
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@ -55,22 +55,14 @@ CREATE PROCEDURE r.create_triggers (table_name text, command text)
LANGUAGE plpgsql LANGUAGE plpgsql
AS $a$ AS $a$
DECLARE DECLARE
-- `PERFORM` isn't used because it doesn't allow `WITH`
defs text := $b$ defs text := $b$
-- Delete -- Delete
CREATE FUNCTION r.thing_delete_statement () CREATE FUNCTION r.thing_delete_statement ()
RETURNS TRIGGER RETURNS TRIGGER
LANGUAGE plpgsql LANGUAGE plpgsql
AS $$ AS $$
DECLARE
foo int;
BEGIN BEGIN
WITH combined_transition_tables AS ( delete_command;
select_old_table
),
trigger_result AS command
SELECT
1 INTO foo;
RETURN NULL; RETURN NULL;
END $$; END $$;
CREATE TRIGGER delete_statement CREATE TRIGGER delete_statement
@ -82,15 +74,8 @@ END $$;
RETURNS TRIGGER RETURNS TRIGGER
LANGUAGE plpgsql LANGUAGE plpgsql
AS $$ AS $$
DECLARE
foo int;
BEGIN BEGIN
WITH combined_transition_tables AS ( insert_command;
select_new_table
),
trigger_result AS command
SELECT
1 INTO foo;
RETURN NULL; RETURN NULL;
END $$; END $$;
CREATE TRIGGER insert_statement CREATE TRIGGER insert_statement
@ -102,16 +87,8 @@ END $$;
RETURNS TRIGGER RETURNS TRIGGER
LANGUAGE plpgsql LANGUAGE plpgsql
AS $$ AS $$
DECLARE
foo int;
BEGIN BEGIN
WITH combined_transition_tables AS ( update_command;
select_old_table
UNION ALL select_new_table
),
trigger_result AS command
SELECT
1 INTO foo;
RETURN NULL; RETURN NULL;
END $$; END $$;
CREATE TRIGGER update_statement CREATE TRIGGER update_statement
@ -120,6 +97,10 @@ END $$;
EXECUTE FUNCTION r.thing_update_statement ( ); EXECUTE FUNCTION r.thing_update_statement ( );
$b$; $b$;
BEGIN BEGIN
-- Couldn't get `combined_transition_tables` to work using CTE
defs := replace(defs, 'delete_command', replace(command, 'combined_transition_tables', '(select_old_table) AS combined_transition_tables'));
defs := replace(defs, 'insert_command', replace(command, 'combined_transition_tables', '(select_new_table) AS combined_transition_tables'));
defs := replace(defs, 'update_command', replace(command, 'combined_transition_tables', '(select_old_table UNION ALL select_new_table) AS combined_transition_tables'));
defs := replace(defs, 'select_old_table', $$ defs := replace(defs, 'select_old_table', $$
SELECT SELECT
-1 AS count_diff, old_table::thing AS thing FROM old_table $$); -1 AS count_diff, old_table::thing AS thing FROM old_table $$);
@ -127,7 +108,6 @@ END $$;
SELECT SELECT
1 AS count_diff, new_table::thing AS thing FROM new_table $$); 1 AS count_diff, new_table::thing AS thing FROM new_table $$);
defs := replace(defs, 'thing', table_name); defs := replace(defs, 'thing', table_name);
defs := replace(defs, 'command', format('(%s)', command));
EXECUTE defs; EXECUTE defs;
END END
$a$; $a$;