Release 2.4.2

This release contains bug fixes since the 2.4.1 release.
We deem it high priority to upgrade.

**Bugfixes**
* #3437 Rename on all continuous aggregate objects
* #3469 Use signal-safe functions in signal handler
* #3520 Modify compression job processing logic
* #3527 Fix time_bucket_ng behaviour with origin argument
* #3532 Fix bootstrap with regresschecks disabled
* #3574 Fix failure on job execution by background worker
* #3590 Call cleanup functions on backend exit

**Thanks**
* @jankatins for reporting a crash with background workers
* @LutzWeischerFujitsu for reporting an issue with bootstrap

CHANGELOG.md

@@ -4,6 +4,24 @@
 `psql` with the `-X` flag to prevent any `.psqlrc` commands from
 accidentally triggering the load of a previous DB version.**
 
+## 2.4.2 (2021-09-21)
+
+This release contains bug fixes since the 2.4.1 release.
+We deem it high priority to upgrade.
+
+**Bugfixes**
+* #3437 Rename on all continuous aggregate objects
+* #3469 Use signal-safe functions in signal handler
+* #3520 Modify compression job processing logic
+* #3527 Fix time_bucket_ng behaviour with origin argument
+* #3532 Fix bootstrap with regresschecks disabled
+* #3574 Fix failure on job execution by background worker
+* #3590 Call cleanup functions on backend exit
+
+**Thanks**
+* @jankatins for reporting a crash with background workers
+* @LutzWeischerFujitsu for reporting an issue with bootstrap
+
 ## 2.4.1 (2021-08-19)
 
 This release contains bug fixes since the 2.4.0 release.  We deem it

sql/CMakeLists.txt

@@ -28,7 +28,8 @@ set(MOD_FILES
     updates/2.2.1--2.3.0.sql
     updates/2.3.0--2.3.1.sql
     updates/2.3.1--2.4.0.sql
-    updates/2.4.0--2.4.1.sql)
+    updates/2.4.0--2.4.1.sql
+    updates/2.4.1--2.4.2.sql)
 
 # Files for downgrade scripts. This should only include files for downgrade to
 # previous version since we do not support skipping versions when downgrading

sql/updates/2.4.1--2.4.2.sql

@@ -0,0 +1,84 @@
+DROP FUNCTION IF EXISTS _timescaledb_internal.time_col_name_for_chunk(name,name);
+DROP FUNCTION IF EXISTS _timescaledb_internal.time_col_type_for_chunk(name,name);
+
+-- Handle column renames for continuous aggregates that were not
+-- handled correctly and fix it in the update. We save the information
+-- in a table.
+CREATE UNLOGGED TABLE rename_tables (
+       user_view regclass,
+       new_name text,
+       old_name text,
+       partial_view regclass,
+       direct_view regclass,
+       mat_table regclass,
+       hypertable_id int
+);
+
+-- Compare the user view and the direct view of each continuous
+-- aggregate to figure out what columns that were renamed on the user
+-- view but which did not propagate to the other objects of the
+-- continuous aggregate since this did not work in previous versions.
+WITH
+  objs AS (
+        SELECT format('%I.%I', user_view_schema, user_view_name)::regclass AS user_view,
+               format('%I.%I', direct_view_schema, direct_view_name)::regclass AS direct_view,
+               format('%I.%I', partial_view_schema, partial_view_name)::regclass AS partial_view,
+               format('%I.%I', schema_name, table_name)::regclass AS mat_table,
+               mat_hypertable_id AS mat_id
+          FROM _timescaledb_catalog.continuous_agg
+          JOIN _timescaledb_catalog.hypertable ON mat_hypertable_id = id),
+  user_view AS (
+        SELECT attrelid, attname, attnum, mat_id
+          FROM objs, pg_attribute
+         WHERE attrelid = objs.user_view),
+  direct_view AS (
+        SELECT attrelid, attname, attnum, mat_id
+          FROM objs, pg_attribute
+         WHERE attrelid = objs.direct_view)
+INSERT INTO rename_tables
+SELECT (SELECT user_view FROM objs WHERE uv.attrelid = user_view),
+       uv.attname AS new_name,
+       dv.attname AS old_name,
+       (SELECT partial_view FROM objs WHERE uv.attrelid = user_view),
+       (SELECT direct_view FROM objs WHERE uv.attrelid = user_view),
+       (SELECT mat_table FROM objs WHERE uv.attrelid = user_view),
+       (SELECT mat_id FROM objs WHERE uv.attrelid = user_view)
+  FROM user_view uv JOIN direct_view dv USING (mat_id, attnum)
+ WHERE uv.attname != dv.attname;
+
+CREATE PROCEDURE alter_table_column(cagg regclass, relation regclass, old_column_name name, new_column_name name) AS $$
+BEGIN
+    EXECUTE format('ALTER TABLE %s RENAME COLUMN %I TO %I', relation, old_column_name, new_column_name);
+END;
+$$ LANGUAGE plpgsql;
+
+-- Rename the columns for all the associated objects for continuous
+-- aggregates that have renamed columns. Also rename the column in the
+-- dimension table.
+DO
+$$
+DECLARE
+    user_view regclass;
+    new_name name;
+    old_name name;
+    partial_view regclass;
+    direct_view regclass;
+    mat_table regclass;
+    ht_id int;
+BEGIN
+  FOR user_view, new_name, old_name, partial_view, direct_view, mat_table, ht_id IN
+  SELECT * FROM rename_tables
+  LOOP
+    -- There is no RENAME COLUMN for views, but we can use ALTER TABLE
+    -- to rename a column in a view.
+    CALL alter_table_column(user_view, partial_view, old_name, new_name);
+    CALL alter_table_column(user_view, direct_view, old_name, new_name);
+    CALL alter_table_column(user_view, mat_table, old_name, new_name);
+    UPDATE _timescaledb_catalog.dimension SET column_name = new_name
+     WHERE hypertable_id = ht_id AND column_name = old_name;
+  END LOOP;
+END
+$$;
+
+DROP PROCEDURE alter_table_column;
+DROP TABLE rename_tables;

sql/updates/latest-dev.sql

@@ -1,84 +0,0 @@
-DROP FUNCTION _timescaledb_internal.time_col_name_for_chunk(name,name);
-DROP FUNCTION _timescaledb_internal.time_col_type_for_chunk(name,name);
-
--- Handle column renames for continuous aggregates that were not
--- handled correctly and fix it in the update. We save the information
--- in a table.
-CREATE UNLOGGED TABLE rename_tables (
-       user_view regclass,
-       new_name text,
-       old_name text,
-       partial_view regclass,
-       direct_view regclass,
-       mat_table regclass,
-       hypertable_id int
-);
-
--- Compare the user view and the direct view of each continuous
--- aggregate to figure out what columns that were renamed on the user
--- view but which did not propagate to the other objects of the
--- continuous aggregate since this did not work in previous versions.
-WITH
-  objs AS (
-        SELECT format('%I.%I', user_view_schema, user_view_name)::regclass AS user_view,
-               format('%I.%I', direct_view_schema, direct_view_name)::regclass AS direct_view,
-               format('%I.%I', partial_view_schema, partial_view_name)::regclass AS partial_view,
-               format('%I.%I', schema_name, table_name)::regclass AS mat_table,
-               mat_hypertable_id AS mat_id
-          FROM _timescaledb_catalog.continuous_agg
-          JOIN _timescaledb_catalog.hypertable ON mat_hypertable_id = id),
-  user_view AS (
-        SELECT attrelid, attname, attnum, mat_id
-          FROM objs, pg_attribute
-         WHERE attrelid = objs.user_view),
-  direct_view AS (
-        SELECT attrelid, attname, attnum, mat_id
-          FROM objs, pg_attribute
-         WHERE attrelid = objs.direct_view)
-INSERT INTO rename_tables
-SELECT (SELECT user_view FROM objs WHERE uv.attrelid = user_view),
-       uv.attname AS new_name,
-       dv.attname AS old_name,
-       (SELECT partial_view FROM objs WHERE uv.attrelid = user_view),
-       (SELECT direct_view FROM objs WHERE uv.attrelid = user_view),
-       (SELECT mat_table FROM objs WHERE uv.attrelid = user_view),
-       (SELECT mat_id FROM objs WHERE uv.attrelid = user_view)
-  FROM user_view uv JOIN direct_view dv USING (mat_id, attnum)
- WHERE uv.attname != dv.attname;
-
-CREATE PROCEDURE alter_table_column(cagg regclass, relation regclass, old_column_name name, new_column_name name) AS $$
-BEGIN
-    EXECUTE format('ALTER TABLE %s RENAME COLUMN %I TO %I', relation, old_column_name, new_column_name);
-END;
-$$ LANGUAGE plpgsql;
-
--- Rename the columns for all the associated objects for continuous
--- aggregates that have renamed columns. Also rename the column in the
--- dimension table.
-DO
-$$
-DECLARE
-    user_view regclass;
-    new_name name;
-    old_name name;
-    partial_view regclass;
-    direct_view regclass;
-    mat_table regclass;
-    ht_id int;
-BEGIN
-  FOR user_view, new_name, old_name, partial_view, direct_view, mat_table, ht_id IN
-  SELECT * FROM rename_tables
-  LOOP
-    -- There is no RENAME COLUMN for views, but we can use ALTER TABLE
-    -- to rename a column in a view.
-    CALL alter_table_column(user_view, partial_view, old_name, new_name);
-    CALL alter_table_column(user_view, direct_view, old_name, new_name);
-    CALL alter_table_column(user_view, mat_table, old_name, new_name);
-    UPDATE _timescaledb_catalog.dimension SET column_name = new_name
-     WHERE hypertable_id = ht_id AND column_name = old_name;
-  END LOOP;
-END
-$$;
-
-DROP PROCEDURE alter_table_column;
-DROP TABLE rename_tables;

version.config

@@ -1,3 +1,3 @@
 version = 2.5.0-dev
-update_from_version = 2.4.1
+update_from_version = 2.4.2
 downgrade_to_version = 2.4.1