Populate CAgg bucket catalog table for all CAggs

This changes the behavior of the CAgg catalog tables. From now on, all
CAggs that use a time_bucket function create an entry in the catalog
table continuous_aggs_bucket_function. In addition, the duplicate
bucket_width attribute is removed from the catalog table continuous_agg.

sql/pre_install/tables.sql

@@ -311,7 +311,6 @@ CREATE TABLE _timescaledb_catalog.continuous_agg (
   user_view_name name NOT NULL,
   partial_view_schema name NOT NULL,
   partial_view_name name NOT NULL,
-  bucket_width bigint NOT NULL,
   direct_view_schema name NOT NULL,
   direct_view_name name NOT NULL,
   materialized_only bool NOT NULL DEFAULT FALSE,

sql/updates/latest-dev.sql

@@ -177,3 +177,149 @@ BEGIN
   END LOOP;
 END
 $$;
+
+--
+-- Rebuild the catalog table `_timescaledb_catalog.continuous_agg`
+--
+
+-- (1) Create missing entries in _timescaledb_catalog.continuous_aggs_bucket_function
+CREATE OR REPLACE FUNCTION _timescaledb_functions.cagg_get_bucket_function(
+    mat_hypertable_id INTEGER
+) RETURNS regprocedure AS '@MODULE_PATHNAME@', 'ts_continuous_agg_get_bucket_function' LANGUAGE C STRICT VOLATILE;
+
+-- Make sure function points to the new version of TSDB
+CREATE OR REPLACE FUNCTION _timescaledb_functions.to_interval(unixtime_us BIGINT) RETURNS INTERVAL
+    AS '@MODULE_PATHNAME@', 'ts_pg_unix_microseconds_to_interval' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+-- We need to create entries in continuous_aggs_bucket_function for all CAggs that were treated so far
+-- as fixed indicated by a bucket_width != -1
+INSERT INTO _timescaledb_catalog.continuous_aggs_bucket_function
+  SELECT
+  mat_hypertable_id,
+  _timescaledb_functions.cagg_get_bucket_function(mat_hypertable_id),
+  -- Intervals needs to be converted into the proper interval format
+  -- Function name could be prefixed with 'public.'. Therefore LIKE instead of starts_with is used
+  CASE WHEN _timescaledb_functions.cagg_get_bucket_function(mat_hypertable_id)::text LIKE '%time_bucket(interval,%' THEN
+    _timescaledb_functions.to_interval(bucket_width)::text
+  ELSE
+    bucket_width::text
+  END,
+  NULL, -- bucket_origin
+  NULL, -- bucket_offset
+  NULL, -- bucket_timezone
+  true  -- bucket_fixed_width
+  FROM _timescaledb_catalog.continuous_agg WHERE bucket_width != -1;
+
+ALTER EXTENSION timescaledb DROP FUNCTION _timescaledb_functions.cagg_get_bucket_function(INTEGER);
+DROP FUNCTION IF EXISTS _timescaledb_functions.cagg_get_bucket_function(INTEGER);
+
+-- (2) Rebuild catalog table
+DROP VIEW IF EXISTS timescaledb_experimental.policies;
+DROP VIEW IF EXISTS timescaledb_information.hypertables;
+DROP VIEW IF EXISTS timescaledb_information.continuous_aggregates;
+
+DROP PROCEDURE IF EXISTS @extschema@.cagg_migrate (REGCLASS, BOOLEAN, BOOLEAN);
+DROP FUNCTION IF EXISTS _timescaledb_internal.cagg_migrate_pre_validation (TEXT, TEXT, TEXT);
+DROP FUNCTION IF EXISTS _timescaledb_functions.cagg_migrate_pre_validation (TEXT, TEXT, TEXT);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_create_plan (_timescaledb_catalog.continuous_agg, TEXT, BOOLEAN, BOOLEAN);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_create_plan (_timescaledb_catalog.continuous_agg, TEXT, BOOLEAN, BOOLEAN);
+
+DROP FUNCTION IF EXISTS _timescaledb_functions.cagg_migrate_plan_exists (INTEGER);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_plan (_timescaledb_catalog.continuous_agg);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_plan (_timescaledb_catalog.continuous_agg);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_create_new_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_create_new_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_disable_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_disable_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_enable_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_enable_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_copy_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_copy_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_refresh_new_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_refresh_new_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_copy_data (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_copy_data (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_override_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_override_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_drop_old_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_drop_old_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+
+ALTER TABLE _timescaledb_catalog.continuous_aggs_materialization_invalidation_log
+    DROP CONSTRAINT continuous_aggs_materialization_invalid_materialization_id_fkey;
+
+ALTER TABLE _timescaledb_catalog.continuous_aggs_watermark
+    DROP CONSTRAINT continuous_aggs_watermark_mat_hypertable_id_fkey;
+
+ALTER EXTENSION timescaledb
+    DROP TABLE _timescaledb_catalog.continuous_agg;
+
+CREATE TABLE _timescaledb_catalog._tmp_continuous_agg AS
+    SELECT
+        mat_hypertable_id,
+        raw_hypertable_id,
+        parent_mat_hypertable_id,
+        user_view_schema,
+        user_view_name,
+        partial_view_schema,
+        partial_view_name,
+        direct_view_schema,
+        direct_view_name,
+        materialized_only,
+        finalized
+    FROM
+        _timescaledb_catalog.continuous_agg
+    ORDER BY
+        mat_hypertable_id;
+
+DROP TABLE _timescaledb_catalog.continuous_agg;
+
+CREATE TABLE _timescaledb_catalog.continuous_agg (
+    mat_hypertable_id integer NOT NULL,
+    raw_hypertable_id integer NOT NULL,
+    parent_mat_hypertable_id integer,
+    user_view_schema name NOT NULL,
+    user_view_name name NOT NULL,
+    partial_view_schema name NOT NULL,
+    partial_view_name name NOT NULL,
+    direct_view_schema name NOT NULL,
+    direct_view_name name NOT NULL,
+    materialized_only bool NOT NULL DEFAULT FALSE,
+    finalized bool NOT NULL DEFAULT TRUE,
+    -- table constraints
+    CONSTRAINT continuous_agg_pkey PRIMARY KEY (mat_hypertable_id),
+    CONSTRAINT continuous_agg_partial_view_schema_partial_view_name_key UNIQUE (partial_view_schema, partial_view_name),
+    CONSTRAINT continuous_agg_user_view_schema_user_view_name_key UNIQUE (user_view_schema, user_view_name),
+    CONSTRAINT continuous_agg_mat_hypertable_id_fkey
+        FOREIGN KEY (mat_hypertable_id) REFERENCES _timescaledb_catalog.hypertable (id) ON DELETE CASCADE,
+    CONSTRAINT continuous_agg_raw_hypertable_id_fkey
+        FOREIGN KEY (raw_hypertable_id) REFERENCES _timescaledb_catalog.hypertable (id) ON DELETE CASCADE,
+    CONSTRAINT continuous_agg_parent_mat_hypertable_id_fkey
+        FOREIGN KEY (parent_mat_hypertable_id)
+        REFERENCES _timescaledb_catalog.continuous_agg (mat_hypertable_id) ON DELETE CASCADE
+);
+
+INSERT INTO _timescaledb_catalog.continuous_agg
+SELECT * FROM _timescaledb_catalog._tmp_continuous_agg;
+DROP TABLE _timescaledb_catalog._tmp_continuous_agg;
+
+CREATE INDEX continuous_agg_raw_hypertable_id_idx ON _timescaledb_catalog.continuous_agg (raw_hypertable_id);
+
+SELECT pg_catalog.pg_extension_config_dump('_timescaledb_catalog.continuous_agg', '');
+
+GRANT SELECT ON TABLE _timescaledb_catalog.continuous_agg TO PUBLIC;
+
+ALTER TABLE _timescaledb_catalog.continuous_aggs_materialization_invalidation_log
+    ADD CONSTRAINT continuous_aggs_materialization_invalid_materialization_id_fkey
+        FOREIGN KEY (materialization_id)
+        REFERENCES _timescaledb_catalog.continuous_agg(mat_hypertable_id) ON DELETE CASCADE;
+
+ALTER TABLE _timescaledb_catalog.continuous_aggs_watermark
+    ADD CONSTRAINT continuous_aggs_watermark_mat_hypertable_id_fkey
+        FOREIGN KEY (mat_hypertable_id)
+        REFERENCES _timescaledb_catalog.continuous_agg (mat_hypertable_id) ON DELETE CASCADE;
+
+ANALYZE _timescaledb_catalog.continuous_agg;
+
+--
+-- END Rebuild the catalog table `_timescaledb_catalog.continuous_agg`
+--

sql/updates/reverse-dev.sql

@@ -1,5 +1,141 @@
 DROP FUNCTION IF EXISTS _timescaledb_functions.remove_dropped_chunk_metadata(INTEGER);
 
+
+--
+-- Rebuild the catalog table `_timescaledb_catalog.continuous_agg`
+--
+DROP VIEW IF EXISTS timescaledb_experimental.policies;
+DROP VIEW IF EXISTS timescaledb_information.hypertables;
+DROP VIEW IF EXISTS timescaledb_information.continuous_aggregates;
+
+DROP PROCEDURE IF EXISTS @extschema@.cagg_migrate (REGCLASS, BOOLEAN, BOOLEAN);
+DROP FUNCTION IF EXISTS _timescaledb_internal.cagg_migrate_pre_validation (TEXT, TEXT, TEXT);
+DROP FUNCTION IF EXISTS _timescaledb_functions.cagg_migrate_pre_validation (TEXT, TEXT, TEXT);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_create_plan (_timescaledb_catalog.continuous_agg, TEXT, BOOLEAN, BOOLEAN);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_create_plan (_timescaledb_catalog.continuous_agg, TEXT, BOOLEAN, BOOLEAN);
+
+DROP FUNCTION IF EXISTS _timescaledb_functions.cagg_migrate_plan_exists (INTEGER);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_plan (_timescaledb_catalog.continuous_agg);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_plan (_timescaledb_catalog.continuous_agg);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_create_new_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_create_new_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_disable_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_disable_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_enable_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_enable_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_copy_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_copy_policies (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_refresh_new_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_refresh_new_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_copy_data (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_copy_data (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_override_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_override_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_internal.cagg_migrate_execute_drop_old_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+DROP PROCEDURE IF EXISTS _timescaledb_functions.cagg_migrate_execute_drop_old_cagg (_timescaledb_catalog.continuous_agg, _timescaledb_catalog.continuous_agg_migrate_plan_step);
+
+ALTER TABLE _timescaledb_catalog.continuous_aggs_materialization_invalidation_log
+    DROP CONSTRAINT continuous_aggs_materialization_invalid_materialization_id_fkey;
+
+ALTER TABLE _timescaledb_catalog.continuous_aggs_watermark
+    DROP CONSTRAINT continuous_aggs_watermark_mat_hypertable_id_fkey;
+
+ALTER EXTENSION timescaledb
+    DROP TABLE _timescaledb_catalog.continuous_agg;
+
+CREATE TABLE _timescaledb_catalog._tmp_continuous_agg AS
+    SELECT
+        mat_hypertable_id,
+        raw_hypertable_id,
+        parent_mat_hypertable_id,
+        user_view_schema,
+        user_view_name,
+        partial_view_schema,
+        partial_view_name,
+        -1::bigint as bucket_width, -- -1 means variable width. Will be modified soon if not variable.
+        direct_view_schema,
+        direct_view_name,
+        materialized_only,
+        finalized
+    FROM
+        _timescaledb_catalog.continuous_agg
+    ORDER BY
+        mat_hypertable_id;
+
+-- Migrate CAggs with fixed bucket on interval back
+WITH fixed_buckets AS (
+    SELECT * FROM _timescaledb_catalog.continuous_aggs_bucket_function WHERE bucket_fixed_width = true AND bucket_func::text LIKE '%time_bucket(interval%'
+)
+UPDATE _timescaledb_catalog._tmp_continuous_agg cagg
+    SET bucket_width = _timescaledb_functions.interval_to_usec(fb.bucket_width::interval)
+    FROM fixed_buckets fb
+    WHERE cagg.mat_hypertable_id = fb.mat_hypertable_id;
+
+-- Migrate CAggs with fixed bucket on integer back
+WITH fixed_buckets AS (
+    SELECT * FROM _timescaledb_catalog.continuous_aggs_bucket_function WHERE bucket_fixed_width = true AND bucket_func::text NOT LIKE '%time_bucket(interval%'
+)
+UPDATE _timescaledb_catalog._tmp_continuous_agg cagg
+    SET bucket_width = fb.bucket_width::bigint
+    FROM fixed_buckets fb
+    WHERE cagg.mat_hypertable_id = fb.mat_hypertable_id;
+
+DELETE FROM _timescaledb_catalog.continuous_aggs_bucket_function WHERE bucket_fixed_width = true;
+
+DROP TABLE _timescaledb_catalog.continuous_agg;
+
+CREATE TABLE _timescaledb_catalog.continuous_agg (
+    mat_hypertable_id integer NOT NULL,
+    raw_hypertable_id integer NOT NULL,
+    parent_mat_hypertable_id integer,
+    user_view_schema name NOT NULL,
+    user_view_name name NOT NULL,
+    partial_view_schema name NOT NULL,
+    partial_view_name name NOT NULL,
+    bucket_width bigint NOT NULL,
+    direct_view_schema name NOT NULL,
+    direct_view_name name NOT NULL,
+    materialized_only bool NOT NULL DEFAULT FALSE,
+    finalized bool NOT NULL DEFAULT TRUE,
+    -- table constraints
+    CONSTRAINT continuous_agg_pkey PRIMARY KEY (mat_hypertable_id),
+    CONSTRAINT continuous_agg_partial_view_schema_partial_view_name_key UNIQUE (partial_view_schema, partial_view_name),
+    CONSTRAINT continuous_agg_user_view_schema_user_view_name_key UNIQUE (user_view_schema, user_view_name),
+    CONSTRAINT continuous_agg_mat_hypertable_id_fkey
+        FOREIGN KEY (mat_hypertable_id) REFERENCES _timescaledb_catalog.hypertable (id) ON DELETE CASCADE,
+    CONSTRAINT continuous_agg_raw_hypertable_id_fkey
+        FOREIGN KEY (raw_hypertable_id) REFERENCES _timescaledb_catalog.hypertable (id) ON DELETE CASCADE,
+    CONSTRAINT continuous_agg_parent_mat_hypertable_id_fkey
+        FOREIGN KEY (parent_mat_hypertable_id)
+        REFERENCES _timescaledb_catalog.continuous_agg (mat_hypertable_id) ON DELETE CASCADE
+);
+
+INSERT INTO _timescaledb_catalog.continuous_agg
+SELECT * FROM _timescaledb_catalog._tmp_continuous_agg;
+DROP TABLE _timescaledb_catalog._tmp_continuous_agg;
+
+CREATE INDEX continuous_agg_raw_hypertable_id_idx ON _timescaledb_catalog.continuous_agg (raw_hypertable_id);
+
+SELECT pg_catalog.pg_extension_config_dump('_timescaledb_catalog.continuous_agg', '');
+
+GRANT SELECT ON TABLE _timescaledb_catalog.continuous_agg TO PUBLIC;
+
+ALTER TABLE _timescaledb_catalog.continuous_aggs_materialization_invalidation_log
+    ADD CONSTRAINT continuous_aggs_materialization_invalid_materialization_id_fkey
+        FOREIGN KEY (materialization_id)
+        REFERENCES _timescaledb_catalog.continuous_agg(mat_hypertable_id) ON DELETE CASCADE;
+
+ALTER TABLE _timescaledb_catalog.continuous_aggs_watermark
+    ADD CONSTRAINT continuous_aggs_watermark_mat_hypertable_id_fkey
+        FOREIGN KEY (mat_hypertable_id)
+        REFERENCES _timescaledb_catalog.continuous_agg (mat_hypertable_id) ON DELETE CASCADE;
+
+ANALYZE _timescaledb_catalog.continuous_agg;
+
+--
+-- END Rebuild the catalog table `_timescaledb_catalog.continuous_agg`
+--
+
 --
 -- Rebuild the catalog table `_timescaledb_catalog.continuous_aggs_bucket_function`
 --

src/func_cache.c

@@ -563,10 +563,15 @@ initialize_func_info()
 								ObjectIdGetDatum(namespaceoid));
 
 		if (!HeapTupleIsValid(tuple))
-			elog(ERROR,
+		{
+			/* The function cache could be accessed during an extension upgrade. Not all expected
+			 * functions have to exist at this point. */
+			elog(ts_extension_is_loaded() ? ERROR : NOTICE,
 				 "cache lookup failed for function \"%s\" with %d args",
 				 finfo->funcname,
 				 finfo->nargs);
+			continue;
+		}
 
 		funcid = proc_get_oid(tuple);
 

src/ts_catalog/catalog.h

@@ -793,7 +793,6 @@ typedef enum Anum_continuous_agg
 	Anum_continuous_agg_user_view_name,
 	Anum_continuous_agg_partial_view_schema,
 	Anum_continuous_agg_partial_view_name,
-	Anum_continuous_agg_bucket_width,
 	Anum_continuous_agg_direct_view_schema,
 	Anum_continuous_agg_direct_view_name,
 	Anum_continuous_agg_materialize_only,
@@ -812,18 +811,6 @@ typedef struct FormData_continuous_agg
 	NameData user_view_name;
 	NameData partial_view_schema;
 	NameData partial_view_name;
-	/*
-	 * bucket_width is BUCKET_WIDTH_VARIABLE (see continuous_agg.h) for buckets
-	 * with variable size - monthly buckets, buckets with timezone, etc. For such
-	 * buckets the information about the bucketing function is stored in
-	 * _timescaledb_catalog.continuous_aggs_bucket_function.
-	 *
-	 * When possible, don't access bucket_width directly. Use corresponding
-	 * procedures instead, such as:
-	 * - ts_continuous_agg_bucket_width_variable
-	 * - ts_continuous_agg_bucket_width
-	 */
-	int64 bucket_width;
 	NameData direct_view_schema;
 	NameData direct_view_name;
 	bool materialized_only;