/usr/share/postgresql/9.5/extension/mimeo--0.6.0--0.6.1.sql is in postgresql-9.5-mimeo 1.4.1-1.
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The actual contents of the file can be viewed below.
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-- NOTE: Existing jobs shouldn't be affected by this and you don't have to remake any of your jobs unless you run into this issue. All newly created jobs after this update are installed with the new queue naming format.
/*
* DML maker function.
*/
CREATE OR REPLACE FUNCTION dml_maker(p_src_table text, p_dblink_id int, p_dest_table text DEFAULT NULL, p_pulldata boolean DEFAULT true, p_pk_field text[] DEFAULT NULL, p_pk_type text[] DEFAULT NULL) RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
v_create_trig text;
v_data_source text;
v_dblink_schema text;
v_dest_check text;
v_dest_schema_name text;
v_dest_table_name text;
v_exists int := 0;
v_insert_refresh_config text;
v_old_search_path text;
v_pk_counter int := 1;
v_pk_field text[] := p_pk_field;
v_pk_field_csv text := '';
v_pk_type text[] := p_pk_field;
v_pk_type_csv text := '';
v_remote_exists int := 0;
v_remote_key_sql text;
v_remote_q_index text;
v_remote_q_table text;
v_src_table_name text;
v_trigger_func text;
BEGIN
SELECT nspname INTO v_dblink_schema FROM pg_namespace n, pg_extension e WHERE e.extname = 'dblink' AND e.extnamespace = n.oid;
SELECT current_setting('search_path') INTO v_old_search_path;
EXECUTE 'SELECT set_config(''search_path'',''@extschema@,'||v_dblink_schema||',public'',''false'')';
IF (p_pk_field IS NULL AND p_pk_type IS NOT NULL) OR (p_pk_field IS NOT NULL AND p_pk_type IS NULL) THEN
RAISE EXCEPTION 'Cannot manually set primary/unique key field(s) without defining type(s) or vice versa';
END IF;
SELECT data_source INTO v_data_source FROM @extschema@.dblink_mapping WHERE data_source_id = p_dblink_id;
IF NOT FOUND THEN
RAISE EXCEPTION 'ERROR: database link ID is incorrect %', p_dblink_id;
END IF;
-- Set custom search path to allow easier calls to other functions
SELECT current_setting('search_path') INTO v_old_search_path;
EXECUTE 'SELECT set_config(''search_path'',''@extschema@,'||v_dblink_schema||',public'',''false'')';
IF p_dest_table IS NULL THEN
p_dest_table := p_src_table;
END IF;
EXECUTE 'SELECT count(*) FROM @extschema@.refresh_config_dml WHERE dest_table = '||quote_literal(p_dest_table)||' AND source_table = '||quote_literal(p_src_table) INTO v_exists;
IF v_exists > 0 THEN
RAISE unique_violation;
END IF;
v_src_table_name := replace(p_src_table, '.', '_');
IF position('.' in p_dest_table) > 0 THEN
v_dest_schema_name := split_part(p_dest_table, '.', 1);
v_dest_table_name := split_part(p_dest_table, '.', 2);
END IF;
PERFORM dblink_connect('mimeo_dml', @extschema@.auth(p_dblink_id));
IF p_pk_field IS NULL AND p_pk_type IS NULL THEN
-- Either gets the primary key or it gets the first unique index in alphabetical order by index name
v_remote_key_sql := 'SELECT
CASE
WHEN i.indisprimary IS true THEN ''primary''
WHEN i.indisunique IS true THEN ''unique''
END AS key_type,
array_agg( a.attname ) AS indkey_names,
array_agg( a.atttypid::regtype) AS indkey_types
FROM
pg_index i
JOIN pg_attribute a ON i.indrelid = a.attrelid AND a.attnum = any( i.indkey )
WHERE
i.indrelid = '||quote_literal(p_src_table)||'::regclass
AND ( i.indisprimary OR i.indisunique )
GROUP BY 1
HAVING bool_and( a.attnotnull )
ORDER BY 1 LIMIT 1';
EXECUTE 'SELECT indkey_names, indkey_types FROM dblink(''mimeo_dml'', '||quote_literal(v_remote_key_sql)||') t (key_type text, indkey_names text[], indkey_types text[])'
INTO v_pk_field, v_pk_type;
END IF;
IF v_pk_field IS NULL OR v_pk_type IS NULL THEN
RAISE EXCEPTION 'Source table has no valid primary key or unique index';
END IF;
v_pk_field_csv := array_to_string(v_pk_field, ',');
WHILE v_pk_counter <= array_length(v_pk_field,1) LOOP
IF v_pk_counter > 1 THEN
v_pk_type_csv := v_pk_type_csv || ', ';
END IF;
v_pk_type_csv := v_pk_type_csv ||v_pk_field[v_pk_counter]||' '||v_pk_type[v_pk_counter];
v_pk_counter := v_pk_counter + 1;
END LOOP;
v_remote_q_table := 'CREATE TABLE @extschema@.'||v_src_table_name||'_pgq (';
v_remote_q_table := v_remote_q_table || v_pk_type_csv || ', processed boolean)';
v_remote_q_index := 'CREATE INDEX '||v_src_table_name||'_pgq_'||replace(v_pk_field_csv,',','_')||'_idx ON @extschema@.'||v_src_table_name||'_pgq ('||v_pk_field_csv||')';
v_pk_counter := 1;
v_trigger_func := 'CREATE FUNCTION @extschema@.'||v_src_table_name||'_mimeo_queue() RETURNS trigger LANGUAGE plpgsql AS $_$ DECLARE ';
WHILE v_pk_counter <= array_length(v_pk_field,1) LOOP
v_trigger_func := v_trigger_func||'v_'||v_pk_field[v_pk_counter]||' '||v_pk_type[v_pk_counter]||'; ';
v_pk_counter := v_pk_counter + 1;
END LOOP;
v_pk_counter := 1;
v_trigger_func := v_trigger_func || ' BEGIN IF TG_OP = ''INSERT'' THEN ';
WHILE v_pk_counter <= array_length(v_pk_field,1) LOOP
v_trigger_func := v_trigger_func||' v_'||v_pk_field[v_pk_counter]||' := NEW.'||v_pk_field[v_pk_counter]||'; ';
v_pk_counter := v_pk_counter + 1;
END LOOP;
v_pk_counter := 1;
v_trigger_func := v_trigger_func || ' ELSE ';
WHILE v_pk_counter <= array_length(v_pk_field,1) LOOP
v_trigger_func := v_trigger_func||' v_'||v_pk_field[v_pk_counter]||' := OLD.'||v_pk_field[v_pk_counter]||'; ';
v_pk_counter := v_pk_counter + 1;
END LOOP;
v_pk_counter := 1;
v_trigger_func := v_trigger_func || ' END IF; INSERT INTO @extschema@.'||v_src_table_name||'_pgq ('||v_pk_field_csv||') ';
v_trigger_func := v_trigger_func || ' VALUES (';
WHILE v_pk_counter <= array_length(v_pk_field,1) LOOP
IF v_pk_counter > 1 THEN
v_trigger_func := v_trigger_func || ', ';
END IF;
v_trigger_func := v_trigger_func||'v_'||v_pk_field[v_pk_counter];
v_pk_counter := v_pk_counter + 1;
END LOOP;
v_trigger_func := v_trigger_func || '); RETURN NULL; END $_$;';
v_create_trig := 'CREATE TRIGGER '||v_src_table_name||'_mimeo_trig AFTER INSERT OR UPDATE OR DELETE ON '||p_src_table||
' FOR EACH ROW EXECUTE PROCEDURE @extschema@.'||v_src_table_name||'_mimeo_queue()';
RAISE NOTICE 'Creating objects on source database (function, trigger & queue table)...';
PERFORM dblink_exec('mimeo_dml', v_remote_q_table);
PERFORM dblink_exec('mimeo_dml', v_remote_q_index);
PERFORM dblink_exec('mimeo_dml', v_trigger_func);
PERFORM dblink_exec('mimeo_dml', v_create_trig);
PERFORM dblink_disconnect('mimeo_dml');
-- Only create destination table if it doesn't already exist
SELECT schemaname||'.'||tablename INTO v_dest_check FROM pg_tables WHERE schemaname = v_dest_schema_name AND tablename = v_dest_table_name;
IF v_dest_check IS NULL THEN
RAISE NOTICE 'Snapshotting source table to pull all current source data...';
-- Snapshot the table after triggers have been created to ensure all new data after setup is replicated
v_insert_refresh_config := 'INSERT INTO @extschema@.refresh_config_snap(source_table, dest_table, dblink) VALUES('
||quote_literal(p_src_table)||', '||quote_literal(p_dest_table)||', '|| p_dblink_id||')';
EXECUTE v_insert_refresh_config;
EXECUTE 'SELECT @extschema@.refresh_snap('||quote_literal(p_dest_table)||', p_pulldata := '||p_pulldata||')';
PERFORM @extschema@.snapshot_destroyer(p_dest_table, 'ARCHIVE');
ELSE
RAISE NOTICE 'Destination table % already exists. No data was pulled from source', p_dest_table;
END IF;
v_insert_refresh_config := 'INSERT INTO @extschema@.refresh_config_dml(source_table, dest_table, dblink, control, pk_field, pk_type, last_value) VALUES('
||quote_literal(p_src_table)||', '||quote_literal(p_dest_table)||', '|| p_dblink_id||', '||quote_literal('@extschema@.'||v_src_table_name||'_pgq')||', '
||quote_literal(v_pk_field)||', '||quote_literal(v_pk_type)||', '||quote_literal(clock_timestamp())||')';
RAISE NOTICE 'Inserting data into config table';
EXECUTE v_insert_refresh_config;
EXECUTE 'SELECT set_config(''search_path'','''||v_old_search_path||''',''false'')';
RAISE NOTICE 'Done';
EXCEPTION
WHEN OTHERS THEN
EXECUTE 'SELECT set_config(''search_path'',''@extschema@,'||v_dblink_schema||''',''false'')';
-- Only cleanup remote objects if replication doesn't exist at all for source table
EXECUTE 'SELECT count(*) FROM @extschema@.refresh_config_dml WHERE source_table = '||quote_literal(p_src_table) INTO v_exists;
IF v_exists = 0 THEN
IF (dblink_get_connections() @> '{mimeo_dml}') = false THEN
PERFORM dblink_connect('mimeo_dml', @extschema@.auth(p_dblink_id));
END IF;
PERFORM dblink_exec('mimeo_dml', 'DROP TABLE IF EXISTS @extschema@.'||v_src_table_name||'_pgq');
PERFORM dblink_exec('mimeo_dml', 'DROP TRIGGER IF EXISTS '||v_src_table_name||'_mimeo_trig ON '||p_src_table);
PERFORM dblink_exec('mimeo_dml', 'DROP FUNCTION IF EXISTS @extschema@.'||v_src_table_name||'_mimeo_queue()');
END IF;
IF dblink_get_connections() @> '{mimeo_dml}' THEN
PERFORM dblink_disconnect('mimeo_dml');
END IF;
EXECUTE 'SELECT set_config(''search_path'','''||v_old_search_path||''',''false'')';
IF v_exists = 0 THEN
RAISE EXCEPTION 'dml_maker() failure. No mimeo configuration found for source %. Cleaned up source table mimeo objects (queue table, function & trigger) if they existed. SQLERRM: %', p_src_table, SQLERRM;
ELSE
RAISE EXCEPTION 'dml_maker() failure. Check to see if dml configuration for % already exists. SQLERRM: % ', p_src_table, SQLERRM;
END IF;
END
$$;
/*
* Logdel maker function.
*/
CREATE OR REPLACE FUNCTION logdel_maker(p_src_table text, p_dblink_id int, p_dest_table text DEFAULT NULL, p_pulldata boolean DEFAULT true, p_pk_field text[] DEFAULT NULL, p_pk_type text[] DEFAULT NULL) RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
v_col_exists int;
v_cols text[];
v_cols_csv text;
v_cols_n_types text[];
v_cols_n_types_csv text;
v_create_trig text;
v_data_source text;
v_dblink_schema text;
v_dest_check text;
v_dest_schema_name text;
v_dest_table_name text;
v_exists int := 0;
v_insert_refresh_config text;
v_old_search_path text;
v_counter int := 1;
v_pk_field text[] := p_pk_field;
v_pk_field_csv text := '';
v_pk_type text[] := p_pk_field;
v_pk_type_csv text := '';
v_remote_key_sql text;
v_remote_sql text;
v_remote_q_index text;
v_remote_q_table text;
v_src_table_name text;
v_trigger_func text;
v_types text[];
v_sql text;
BEGIN
SELECT nspname INTO v_dblink_schema FROM pg_namespace n, pg_extension e WHERE e.extname = 'dblink' AND e.extnamespace = n.oid;
SELECT current_setting('search_path') INTO v_old_search_path;
EXECUTE 'SELECT set_config(''search_path'',''@extschema@,'||v_dblink_schema||',public'',''false'')';
IF (p_pk_field IS NULL AND p_pk_type IS NOT NULL) OR (p_pk_field IS NOT NULL AND p_pk_type IS NULL) THEN
RAISE EXCEPTION 'Cannot manually set primary/unique key field(s) without defining type(s) or vice versa';
END IF;
SELECT data_source INTO v_data_source FROM @extschema@.dblink_mapping WHERE data_source_id = p_dblink_id;
IF NOT FOUND THEN
RAISE EXCEPTION 'ERROR: database link ID is incorrect %', p_dblink_id;
END IF;
IF p_dest_table IS NULL THEN
p_dest_table := p_src_table;
END IF;
EXECUTE 'SELECT count(*) FROM @extschema@.refresh_config_logdel WHERE dest_table = '||quote_literal(p_dest_table)||' AND source_table = '||quote_literal(p_src_table) INTO v_exists;
IF v_exists > 0 THEN
RAISE unique_violation;
END IF;
v_src_table_name := replace(p_src_table, '.', '_');
IF position('.' in p_dest_table) > 0 THEN
v_dest_schema_name := split_part(p_dest_table, '.', 1);
v_dest_table_name := split_part(p_dest_table, '.', 2);
END IF;
PERFORM dblink_connect('mimeo_logdel', @extschema@.auth(p_dblink_id));
v_remote_sql := 'SELECT array_agg(attname) as cols, array_agg(atttypid::regtype::text) as types, array_agg(attname||'' ''||atttypid::regtype::text) as cols_n_types FROM pg_attribute WHERE attnum > 0 AND attisdropped is false AND attrelid = ' || quote_literal(p_src_table) || '::regclass';
v_remote_sql := 'SELECT cols, types, cols_n_types FROM dblink(''mimeo_logdel'', ' || quote_literal(v_remote_sql) || ') t (cols text[], types text[], cols_n_types text[])';
EXECUTE v_remote_sql INTO v_cols, v_types, v_cols_n_types;
v_cols_csv := array_to_string(v_cols, ',');
v_cols_n_types_csv := array_to_string(v_cols_n_types, ',');
v_remote_q_table := 'CREATE TABLE @extschema@.'||v_src_table_name||'_pgq ('||v_cols_n_types_csv||', mimeo_source_deleted timestamptz, processed boolean)';
IF p_pk_field IS NULL AND p_pk_type IS NULL THEN
-- Either gets the primary key or it gets the first unique index in alphabetical order by index name
v_remote_key_sql := 'SELECT
CASE
WHEN i.indisprimary IS true THEN ''primary''
WHEN i.indisunique IS true THEN ''unique''
END AS key_type,
array_agg( a.attname ) AS indkey_names,
array_agg( a.atttypid::regtype) AS indkey_types
FROM
pg_index i
JOIN pg_attribute a ON i.indrelid = a.attrelid AND a.attnum = any( i.indkey )
WHERE
i.indrelid = '||quote_literal(p_src_table)||'::regclass
AND ( i.indisprimary OR i.indisunique )
GROUP BY 1
HAVING bool_and( a.attnotnull )
ORDER BY 1 LIMIT 1';
EXECUTE 'SELECT indkey_names, indkey_types FROM dblink(''mimeo_logdel'', '||quote_literal(v_remote_key_sql)||') t (key_type text, indkey_names text[], indkey_types text[])'
INTO v_pk_field, v_pk_type;
END IF;
IF v_pk_field IS NULL OR v_pk_type IS NULL THEN
RAISE EXCEPTION 'Source table has no valid primary key or unique index';
END IF;
v_pk_field_csv := array_to_string(v_pk_field, ',');
WHILE v_counter <= array_length(v_pk_field,1) LOOP
IF v_counter > 1 THEN
v_pk_type_csv := v_pk_type_csv || ', ';
END IF;
v_pk_type_csv := v_pk_type_csv ||v_pk_field[v_counter]||' '||v_pk_type[v_counter];
v_counter := v_counter + 1;
END LOOP;
v_remote_q_index := 'CREATE INDEX '||v_src_table_name||'_pgq_'||replace(v_pk_field_csv,',','_')||'_idx ON @extschema@.'||v_src_table_name||'_pgq ('||v_pk_field_csv||')';
v_counter := 1;
v_trigger_func := 'CREATE FUNCTION @extschema@.'||v_src_table_name||'_mimeo_queue() RETURNS trigger LANGUAGE plpgsql AS $_$ DECLARE ';
WHILE v_counter <= array_length(v_cols,1) LOOP
v_trigger_func := v_trigger_func||'v_'||v_cols[v_counter]||' '||v_types[v_counter]||'; ';
v_counter := v_counter + 1;
END LOOP;
v_trigger_func := v_trigger_func || 'v_del_time timestamptz; ';
v_counter := 1;
v_trigger_func := v_trigger_func || ' BEGIN
IF TG_OP = ''INSERT'' THEN ';
WHILE v_counter <= array_length(v_pk_field,1) LOOP
v_trigger_func := v_trigger_func||' v_'||v_pk_field[v_counter]||' := NEW.'||v_pk_field[v_counter]||'; ';
v_counter := v_counter + 1;
END LOOP;
v_counter := 1;
v_trigger_func := v_trigger_func || ' ELSIF TG_OP = ''UPDATE'' THEN ';
WHILE v_counter <= array_length(v_pk_field,1) LOOP
v_trigger_func := v_trigger_func||' v_'||v_pk_field[v_counter]||' := OLD.'||v_pk_field[v_counter]||'; ';
v_counter := v_counter + 1;
END LOOP;
v_counter := 1;
v_trigger_func := v_trigger_func || ' ELSIF TG_OP = ''DELETE'' THEN ';
WHILE v_counter <= array_length(v_cols,1) LOOP
v_trigger_func := v_trigger_func||' v_'||v_cols[v_counter]||' := OLD.'||v_cols[v_counter]||'; ';
v_counter := v_counter + 1;
END LOOP;
v_trigger_func := v_trigger_func || 'v_del_time := clock_timestamp(); ';
v_counter := 1;
v_trigger_func := v_trigger_func || ' END IF; INSERT INTO @extschema@.'||v_src_table_name||'_pgq ('||v_cols_csv||', mimeo_source_deleted) ';
v_trigger_func := v_trigger_func || ' VALUES (';
WHILE v_counter <= array_length(v_cols,1) LOOP
IF v_counter > 1 THEN
v_trigger_func := v_trigger_func || ', ';
END IF;
v_trigger_func := v_trigger_func||'v_'||v_cols[v_counter];
v_counter := v_counter + 1;
END LOOP;
v_trigger_func := v_trigger_func ||', v_del_time); RETURN NULL; END $_$;';
v_create_trig := 'CREATE TRIGGER '||v_src_table_name||'_mimeo_trig AFTER INSERT OR UPDATE OR DELETE ON '||p_src_table||
' FOR EACH ROW EXECUTE PROCEDURE @extschema@.'||v_src_table_name||'_mimeo_queue()';
RAISE NOTICE 'Creating objects on source database (function, trigger & queue table)...';
PERFORM dblink_exec('mimeo_logdel', v_remote_q_table);
PERFORM dblink_exec('mimeo_logdel', v_remote_q_index);
PERFORM dblink_exec('mimeo_logdel', v_trigger_func);
PERFORM dblink_exec('mimeo_logdel', v_create_trig);
PERFORM dblink_disconnect('mimeo_logdel');
-- Only create destination table if it doesn't already exist
SELECT schemaname||'.'||tablename INTO v_dest_check FROM pg_tables WHERE schemaname = v_dest_schema_name AND tablename = v_dest_table_name;
IF v_dest_check IS NULL THEN
RAISE NOTICE 'Snapshotting source table to pull all current source data...';
-- Snapshot the table after triggers have been created to ensure all new data after setup is replicated
v_insert_refresh_config := 'INSERT INTO @extschema@.refresh_config_snap(source_table, dest_table, dblink) VALUES('
||quote_literal(p_src_table)||', '||quote_literal(p_dest_table)||', '|| p_dblink_id||')';
EXECUTE v_insert_refresh_config;
EXECUTE 'SELECT @extschema@.refresh_snap('||quote_literal(p_dest_table)||', p_pulldata := '||p_pulldata||')';
PERFORM @extschema@.snapshot_destroyer(p_dest_table, 'ARCHIVE');
ELSE
RAISE NOTICE 'Destination table % already exists. No data was pulled from source', p_dest_table;
END IF;
SELECT count(*) INTO v_col_exists FROM pg_attribute
WHERE attrelid = p_dest_table::regclass AND attname = 'mimeo_source_deleted' AND attisdropped = false;
IF v_col_exists < 1 THEN
EXECUTE 'ALTER TABLE '||p_dest_table||' ADD COLUMN mimeo_source_deleted timestamptz';
ELSE
RAISE WARNING 'Special column (mimeo_source_deleted) already exists on destination table (%)', p_dest_table;
END IF;
v_insert_refresh_config := 'INSERT INTO @extschema@.refresh_config_logdel(source_table, dest_table, dblink, control, pk_field, pk_type, last_value) VALUES('
||quote_literal(p_src_table)||', '||quote_literal(p_dest_table)||', '|| p_dblink_id||', '||quote_literal('@extschema@.'||v_src_table_name||'_pgq')||', '
||quote_literal(v_pk_field)||', '||quote_literal(v_pk_type)||', '||quote_literal(clock_timestamp())||')';
RAISE NOTICE 'Inserting data into config table';
EXECUTE v_insert_refresh_config;
EXECUTE 'SELECT set_config(''search_path'','''||v_old_search_path||''',''false'')';
RAISE NOTICE 'Done';
EXCEPTION
WHEN OTHERS THEN
EXECUTE 'SELECT set_config(''search_path'',''@extschema@,'||v_dblink_schema||''',''false'')';
-- Only cleanup remote objects if replication doesn't exist at all for source table
EXECUTE 'SELECT count(*) FROM @extschema@.refresh_config_logdel WHERE source_table = '||quote_literal(p_src_table) INTO v_exists;
IF v_exists = 0 THEN
IF (dblink_get_connections() @> '{mimeo_logdel}') = false THEN
PERFORM dblink_connect('mimeo_logdel', @extschema@.auth(p_dblink_id));
END IF;
PERFORM dblink_exec('mimeo_logdel', 'DROP TABLE IF EXISTS @extschema@.'||v_src_table_name||'_pgq');
PERFORM dblink_exec('mimeo_logdel', 'DROP TRIGGER IF EXISTS '||v_src_table_name||'_mimeo_trig ON '||p_src_table);
PERFORM dblink_exec('mimeo_logdel', 'DROP FUNCTION IF EXISTS @extschema@.'||v_src_table_name||'_mimeo_queue()');
END IF;
IF dblink_get_connections() @> '{mimeo_logdel}' THEN
PERFORM dblink_disconnect('mimeo_logdel');
END IF;
EXECUTE 'SELECT set_config(''search_path'','''||v_old_search_path||''',''false'')';
IF v_exists = 0 THEN
RAISE EXCEPTION 'logdel_maker() failure. No mimeo configuration found for source %. Cleaned up source table mimeo objects (queue table, function & trigger) if they existed. SQLERRM: %', p_src_table, SQLERRM;
ELSE
RAISE EXCEPTION 'logdel_maker() failure. Check to see if logdel configuration for % already exists. SQLERRM: % ', p_src_table, SQLERRM;
END IF;
END
$$;
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