/usr/share/postgresql/9.5/extension/mimeo--0.10.1--0.10.2.sql is in postgresql-9.5-mimeo 1.4.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 | -- New refresh_table option for just doing a straight truncate and repull for a regular table. Only adding as a minor feature because other changes do not affect API and it's not recommended as a regular refresh job if possible. Also refresh_table() does not currently log to pg_jobmon, so cannot be monitored and will not set off any alerts if/when this refresh type fails. What this is useful for is having a way to get data from production to a staging/dev database where you still want to be able to edit the destination table. Could do that with Incremental or DML, but this avoids requiring any primary keys, control columns or write access on the source database.
-- Removed custom enum type. Made things much more complicated than they needed to be. Enums are REALLY bad in extensions since you can never just add a new value in an update.
-- The commands to remove the batch limit defaults & set the default boundaries for incremental replication were missing from the mimeo--0.9.3--0.10.1 bypass update file. If that file was used to update mimeo, the defaults were never changed and limits were still being set for new refresh jobs. Run those here again.
ALTER TABLE @extschema@.refresh_config DROP "type";
ALTER TABLE @extschema@.refresh_config_snap DROP "type";
ALTER TABLE @extschema@.refresh_config_inserter DROP "type";
ALTER TABLE @extschema@.refresh_config_updater DROP "type";
ALTER TABLE @extschema@.refresh_config_dml DROP "type";
ALTER TABLE @extschema@.refresh_config_logdel DROP "type";
DROP TYPE @extschema@.refresh_type;
ALTER TABLE @extschema@.refresh_config ADD "type" text;
ALTER TABLE @extschema@.refresh_config_snap ALTER COLUMN type SET DEFAULT 'snap';
ALTER TABLE @extschema@.refresh_config_snap ADD CONSTRAINT refresh_config_snap_type_check CHECK (type = 'snap');
UPDATE @extschema@.refresh_config_snap SET type = 'snap';
ALTER TABLE @extschema@.refresh_config_inserter ALTER COLUMN type SET DEFAULT 'inserter';
ALTER TABLE @extschema@.refresh_config_inserter ADD CONSTRAINT refresh_config_inserter_type_check CHECK (type = 'inserter');
UPDATE @extschema@.refresh_config_inserter SET type = 'inserter';
ALTER TABLE @extschema@.refresh_config_updater ALTER COLUMN type SET DEFAULT 'updater';
ALTER TABLE @extschema@.refresh_config_updater ADD CONSTRAINT refresh_config_updater_type_check CHECK (type = 'updater');
UPDATE @extschema@.refresh_config_updater SET type = 'updater';
ALTER TABLE @extschema@.refresh_config_dml ALTER COLUMN type SET DEFAULT 'dml';
ALTER TABLE @extschema@.refresh_config_dml ADD CONSTRAINT refresh_config_dml_type_check CHECK (type = 'dml');
UPDATE @extschema@.refresh_config_dml SET type = 'dml';
ALTER TABLE @extschema@.refresh_config_logdel ALTER COLUMN type SET DEFAULT 'logdel';
ALTER TABLE @extschema@.refresh_config_logdel ADD CONSTRAINT refresh_config_logdel_type_check CHECK (type = 'logdel');
UPDATE @extschema@.refresh_config_logdel SET type = 'logdel';
CREATE TABLE refresh_config_table (LIKE @extschema@.refresh_config INCLUDING ALL) INHERITS (@extschema@.refresh_config);
SELECT pg_catalog.pg_extension_config_dump('refresh_config_table', '');
ALTER TABLE @extschema@.refresh_config_table ADD CONSTRAINT refresh_config_table_dblink_fkey FOREIGN KEY (dblink) REFERENCES @extschema@.dblink_mapping(data_source_id);
ALTER TABLE @extschema@.refresh_config_table ADD CONSTRAINT refresh_config_table_dest_table_pkey PRIMARY KEY (dest_table);
ALTER TABLE @extschema@.refresh_config_table ADD COLUMN source_table text NOT NULL;
ALTER TABLE @extschema@.refresh_config_table ALTER COLUMN type SET DEFAULT 'table';
ALTER TABLE @extschema@.refresh_config_table ADD CONSTRAINT refresh_config_snap_type_check CHECK (type = 'table');
-- Stuff that was missed in the 0.9.3 -> 0.10.1 bypass update
ALTER TABLE @extschema@.refresh_config ALTER batch_limit DROP DEFAULT;
UPDATE @extschema@.refresh_config_inserter SET boundary = '10 minutes'::interval WHERE boundary IS NULL;
UPDATE @extschema@.refresh_config_updater SET boundary = '10 minutes'::interval WHERE boundary IS NULL;
ALTER TABLE @extschema@.refresh_config_inserter ALTER boundary SET DEFAULT '10 minutes'::interval;
ALTER TABLE @extschema@.refresh_config_updater ALTER boundary SET DEFAULT '10 minutes'::interval;
ALTER TABLE @extschema@.refresh_config_inserter ALTER boundary SET NOT NULL;
ALTER TABLE @extschema@.refresh_config_updater ALTER boundary SET NOT NULL;
/*
* Plain table refresh maker function.
*/
CREATE FUNCTION table_maker(
p_src_table text
, p_dblink_id int
, p_dest_table text DEFAULT NULL
, p_index boolean DEFAULT true
, p_filter text[] DEFAULT NULL
, p_condition text DEFAULT NULL
, p_pulldata boolean DEFAULT true)
RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
v_data_source text;
v_dest_check text;
v_dest_schema_name text;
v_dest_table_name text;
v_dst_active boolean;
v_insert_refresh_config text;
v_max_timestamp timestamptz;
BEGIN
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;
IF position('.' in p_dest_table) > 0 AND position('.' in p_src_table) > 0 THEN
v_dest_schema_name := split_part(p_dest_table, '.', 1);
v_dest_table_name := split_part(p_dest_table, '.', 2);
ELSE
RAISE EXCEPTION 'Source (and destination) table must be schema qualified';
END IF;
-- 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
v_insert_refresh_config := 'INSERT INTO @extschema@.refresh_config_snap(source_table, dest_table, dblink, filter, condition) VALUES('
||quote_literal(p_src_table)||', '||quote_literal(p_dest_table)||', '||p_dblink_id||','
||COALESCE(quote_literal(p_filter), 'NULL')||','||COALESCE(quote_literal(p_condition), 'NULL')||')';
RAISE NOTICE 'Snapshotting source table to pull all current source data...';
EXECUTE v_insert_refresh_config;
EXECUTE 'SELECT @extschema@.refresh_snap('||quote_literal(p_dest_table)||', p_index := '||p_index||', p_pulldata := '||p_pulldata||')';
PERFORM @extschema@.snapshot_destroyer(p_dest_table, 'ARCHIVE');
RAISE NOTICE 'Snapshot complete.';
ELSE
RAISE NOTICE 'Destination table % already exists. No data or indexes were pulled from source', p_dest_table;
END IF;
v_insert_refresh_config := 'INSERT INTO @extschema@.refresh_config_table(source_table, dest_table, dblink, last_run, filter, condition) VALUES('
||quote_literal(p_src_table)||','||quote_literal(p_dest_table)||','|| p_dblink_id||','
||quote_literal(CURRENT_TIMESTAMP)||','||COALESCE(quote_literal(p_filter), 'NULL')||','||COALESCE(quote_literal(p_condition), 'NULL')||');';
RAISE NOTICE 'Inserting data into config table';
EXECUTE v_insert_refresh_config;
-- Remove temp snap from config
EXECUTE 'DELETE FROM @extschema@.refresh_config_snap WHERE source_table = '||quote_literal(p_src_table)||' AND dest_table = '||quote_literal(p_dest_table);
RAISE NOTICE 'Done';
END
$$;
/*
* Plain table refresh function.
*/
CREATE FUNCTION refresh_table(p_destination text, p_debug boolean DEFAULT false) RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
v_adv_lock boolean;
v_cols text[];
v_cols_n_types text[];
v_dblink_name text;
v_dblink_schema text;
v_fetch_sql text;
v_old_search_path text;
v_source_table text;
v_dest_table text;
v_dblink int;
v_filter text;
v_condition text;
v_post_script text[];
v_rowcount bigint := 0;
v_total bigint := 0;
v_remote_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'')';
v_adv_lock := pg_try_advisory_lock(hashtext('refresh_table'), hashtext(p_destination));
IF v_adv_lock = 'false' THEN
RAISE NOTICE 'Found concurrent job. Exiting gracefully';
EXECUTE 'SELECT set_config(''search_path'','''||v_old_search_path||''',''false'')';
RETURN;
END IF;
SELECT source_table
, dest_table
, dblink
, filter
, condition
INTO v_source_table
, v_dest_table
, v_dblink
, v_filter
, v_condition
FROM refresh_config_table
WHERE dest_table = p_destination;
IF NOT FOUND THEN
RAISE EXCEPTION 'ERROR: This table is not set up for plain table replication: %',p_destination;
END IF;
v_dblink_name := 'mimeo_table_refresh_'||v_dest_table;
EXECUTE 'TRUNCATE TABLE '||v_dest_table;
PERFORM dblink_connect(v_dblink_name, @extschema@.auth(v_dblink));
v_remote_sql := 'SELECT array_agg(attname) as cols, array_agg(attname||'' ''||format_type(atttypid, atttypmod)::text) as cols_n_types FROM pg_attribute WHERE attrelid = '||quote_literal(v_source_table)||'::regclass AND attnum > 0 AND attisdropped is false';
IF v_filter IS NOT NULL THEN
v_remote_sql := v_remote_sql || ' AND ARRAY[attname::text] <@ '||quote_literal(v_filter);
END IF;
v_remote_sql := 'SELECT cols, cols_n_types FROM dblink('||quote_literal(v_dblink_name)||', ' || quote_literal(v_remote_sql) || ') t (cols text[], cols_n_types text[])';
EXECUTE v_remote_sql INTO v_cols, v_cols_n_types;
v_remote_sql := 'SELECT '|| array_to_string(v_cols, ',') ||' FROM '||v_source_table;
IF v_condition IS NOT NULL THEN
v_remote_sql := v_remote_sql || ' ' || v_condition;
END IF;
PERFORM dblink_open(v_dblink_name, 'mimeo_cursor', v_remote_sql);
v_rowcount := 0;
LOOP
v_fetch_sql := 'INSERT INTO '|| v_dest_table ||' ('|| array_to_string(v_cols, ',') ||')
SELECT '||array_to_string(v_cols, ',')||' FROM dblink_fetch('||quote_literal(v_dblink_name)||', ''mimeo_cursor'', 50000) AS ('||array_to_string(v_cols_n_types, ',')||')';
EXECUTE v_fetch_sql;
GET DIAGNOSTICS v_rowcount = ROW_COUNT;
EXIT WHEN v_rowcount = 0;
v_total := v_total + coalesce(v_rowcount, 0);
PERFORM gdb(p_debug,'Fetching rows in batches: '||v_total||' done so far.');
END LOOP;
PERFORM dblink_close(v_dblink_name, 'mimeo_cursor');
PERFORM dblink_disconnect(v_dblink_name);
PERFORM pg_advisory_unlock(hashtext('refresh_table'), hashtext(p_destination));
EXECUTE 'SELECT set_config(''search_path'','''||v_old_search_path||''',''false'')';
EXCEPTION
WHEN QUERY_CANCELED THEN
EXECUTE 'SELECT set_config(''search_path'',''@extschema@,'||v_dblink_schema||',public'',''false'')';
IF dblink_get_connections() @> ARRAY[v_dblink_name] THEN
PERFORM dblink_disconnect(v_dblink_name);
END IF;
PERFORM pg_advisory_unlock(hashtext('refresh_table'), hashtext(p_destination));
EXECUTE 'SELECT set_config(''search_path'','''||v_old_search_path||''',''false'')';
RAISE EXCEPTION '%', SQLERRM;
WHEN OTHERS THEN
EXECUTE 'SELECT set_config(''search_path'',''@extschema@,'||v_dblink_schema||',public'',''false'')';
IF dblink_get_connections() @> ARRAY[v_dblink_name] THEN
PERFORM dblink_disconnect(v_dblink_name);
END IF;
PERFORM pg_advisory_unlock(hashtext('refresh_table'), hashtext(p_destination));
EXECUTE 'SELECT set_config(''search_path'','''||v_old_search_path||''',''false'')';
RAISE EXCEPTION '%', SQLERRM;
END
$$;
/*
* Plain table destroyer function. Pass archive to keep table intact.
*/
CREATE FUNCTION table_destroyer(p_dest_table text, p_archive_option text) RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
v_dest_table text;
BEGIN
SELECT dest_table INTO v_dest_table
FROM @extschema@.refresh_config_table WHERE dest_table = p_dest_table;
IF NOT FOUND THEN
RAISE NOTICE 'This table is not set up for plain table replication: %', p_dest_table;
ELSE
-- Keep destination table
IF p_archive_option != 'ARCHIVE' THEN
EXECUTE 'DROP TABLE IF EXISTS ' || v_dest_table;
RAISE NOTICE 'Destination table destroyed: %', v_dest_table;
ELSE
RAISE NOTICE 'Archive option set. Destination table NOT destroyed: %', v_dest_table;
END IF;
EXECUTE 'DELETE FROM @extschema@.refresh_config_table WHERE dest_table = ' || quote_literal(v_dest_table);
END IF;
END
$$;
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