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@ -0,0 +1,341 @@
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-- complain if script is sourced in psql, rather than via CREATE EXTENSION
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\echo Use "CREATE EXTENSION citus_columnar" to load this file. \quit
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-- columnar--9.5-1--10.0-1.sql
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CREATE SCHEMA IF NOT EXISTS columnar;
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SET search_path TO columnar;
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CREATE SEQUENCE IF NOT EXISTS storageid_seq MINVALUE 10000000000 NO CYCLE;
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CREATE TABLE IF NOT EXISTS options (
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regclass regclass NOT NULL PRIMARY KEY,
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chunk_group_row_limit int NOT NULL,
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stripe_row_limit int NOT NULL,
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compression_level int NOT NULL,
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compression name NOT NULL
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) WITH (user_catalog_table = true);
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COMMENT ON TABLE options IS 'columnar table specific options, maintained by alter_columnar_table_set';
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CREATE TABLE IF NOT EXISTS stripe (
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storage_id bigint NOT NULL,
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stripe_num bigint NOT NULL,
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file_offset bigint NOT NULL,
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data_length bigint NOT NULL,
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column_count int NOT NULL,
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chunk_row_count int NOT NULL,
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row_count bigint NOT NULL,
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chunk_group_count int NOT NULL,
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PRIMARY KEY (storage_id, stripe_num)
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) WITH (user_catalog_table = true);
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COMMENT ON TABLE stripe IS 'Columnar per stripe metadata';
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CREATE TABLE IF NOT EXISTS chunk_group (
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storage_id bigint NOT NULL,
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stripe_num bigint NOT NULL,
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chunk_group_num int NOT NULL,
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row_count bigint NOT NULL,
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PRIMARY KEY (storage_id, stripe_num, chunk_group_num),
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FOREIGN KEY (storage_id, stripe_num) REFERENCES stripe(storage_id, stripe_num) ON DELETE CASCADE
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);
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COMMENT ON TABLE chunk_group IS 'Columnar chunk group metadata';
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CREATE TABLE IF NOT EXISTS chunk (
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storage_id bigint NOT NULL,
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stripe_num bigint NOT NULL,
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attr_num int NOT NULL,
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chunk_group_num int NOT NULL,
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minimum_value bytea,
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maximum_value bytea,
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value_stream_offset bigint NOT NULL,
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value_stream_length bigint NOT NULL,
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exists_stream_offset bigint NOT NULL,
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exists_stream_length bigint NOT NULL,
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value_compression_type int NOT NULL,
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value_compression_level int NOT NULL,
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value_decompressed_length bigint NOT NULL,
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value_count bigint NOT NULL,
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PRIMARY KEY (storage_id, stripe_num, attr_num, chunk_group_num),
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FOREIGN KEY (storage_id, stripe_num, chunk_group_num) REFERENCES chunk_group(storage_id, stripe_num, chunk_group_num) ON DELETE CASCADE
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) WITH (user_catalog_table = true);
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COMMENT ON TABLE chunk IS 'Columnar per chunk metadata';
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DO $proc$
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BEGIN
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-- from version 12 and up we have support for tableam's if installed on pg11 we can't
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-- create the objects here. Instead we rely on citus_finish_pg_upgrade to be called by the
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-- user instead to add the missing objects
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IF substring(current_Setting('server_version'), '\d+')::int >= 12 THEN
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EXECUTE $$
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--#include "udfs/columnar_handler/10.0-1.sql"
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CREATE OR REPLACE FUNCTION columnar.columnar_handler(internal)
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RETURNS table_am_handler
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LANGUAGE C
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AS 'MODULE_PATHNAME', 'columnar_handler';
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COMMENT ON FUNCTION columnar.columnar_handler(internal)
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IS 'internal function returning the handler for columnar tables';
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-- postgres 11.8 does not support the syntax for table am, also it is seemingly trying
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-- to parse the upgrade file and erroring on unknown syntax.
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-- normally this section would not execute on postgres 11 anyway. To trick it to pass on
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-- 11.8 we wrap the statement in a plpgsql block together with an EXECUTE. This is valid
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-- syntax on 11.8 and will execute correctly in 12
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DO $create_table_am$
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BEGIN
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EXECUTE 'CREATE ACCESS METHOD columnar TYPE TABLE HANDLER columnar.columnar_handler';
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END $create_table_am$;
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--#include "udfs/alter_columnar_table_set/10.0-1.sql"
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CREATE OR REPLACE FUNCTION pg_catalog.alter_columnar_table_set(
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table_name regclass,
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chunk_group_row_limit int DEFAULT NULL,
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stripe_row_limit int DEFAULT NULL,
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compression name DEFAULT null,
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compression_level int DEFAULT NULL)
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RETURNS void
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LANGUAGE C
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AS 'MODULE_PATHNAME', 'alter_columnar_table_set';
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COMMENT ON FUNCTION pg_catalog.alter_columnar_table_set(
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table_name regclass,
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chunk_group_row_limit int,
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stripe_row_limit int,
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compression name,
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compression_level int)
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IS 'set one or more options on a columnar table, when set to NULL no change is made';
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--#include "udfs/alter_columnar_table_reset/10.0-1.sql"
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CREATE OR REPLACE FUNCTION pg_catalog.alter_columnar_table_reset(
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table_name regclass,
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chunk_group_row_limit bool DEFAULT false,
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stripe_row_limit bool DEFAULT false,
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compression bool DEFAULT false,
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compression_level bool DEFAULT false)
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RETURNS void
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LANGUAGE C
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AS 'MODULE_PATHNAME', 'alter_columnar_table_reset';
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COMMENT ON FUNCTION pg_catalog.alter_columnar_table_reset(
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table_name regclass,
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chunk_group_row_limit bool,
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stripe_row_limit bool,
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compression bool,
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compression_level bool)
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IS 'reset on or more options on a columnar table to the system defaults';
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$$;
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END IF;
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END$proc$;
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-- add citus_internal schema
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CREATE SCHEMA IF NOT EXISTS citus_internal;
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-- (this function being dropped in 10.0.3)->#include "udfs/columnar_ensure_objects_exist/10.0-1.sql"
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-- citus_internal.columnar_ensure_objects_exist is an internal helper function to create
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-- missing objects, anything related to the table access methods.
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-- Since the API for table access methods is only available in PG12 we can't create these
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-- objects when Citus is installed in PG11. Once citus is installed on PG11 the user can
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-- upgrade their database to PG12. Now they require the table access method objects that
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-- we couldn't create before.
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-- This internal function is called from `citus_finish_pg_upgrade` which the user is
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-- required to call after a PG major upgrade.
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-- CREATE OR REPLACE FUNCTION citus_internal.columnar_ensure_objects_exist()
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-- RETURNS void
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-- LANGUAGE plpgsql
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-- SET search_path = pg_catalog
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-- AS $ceoe$
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-- BEGIN
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-- when postgres is version 12 or above we need to create the tableam. If the tableam
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-- exist we assume all objects have been created.
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-- IF substring(current_Setting('server_version'), '\d+')::int >= 12 THEN
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-- IF NOT EXISTS (SELECT 1 FROM pg_am WHERE amname = 'columnar') THEN
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-- --#include "../columnar_handler/10.0-1.sql"
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-- --#include "../alter_columnar_table_set/10.0-1.sql"
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-- --#include "../alter_columnar_table_reset/10.0-1.sql"
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-- -- add the missing objects to the extension
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-- ALTER EXTENSION citus ADD FUNCTION columnar.columnar_handler(internal);
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-- ALTER EXTENSION citus ADD ACCESS METHOD columnar;
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-- ALTER EXTENSION citus ADD FUNCTION pg_catalog.alter_columnar_table_set(
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-- table_name regclass,
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-- chunk_group_row_limit int,
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-- stripe_row_limit int,
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-- compression name,
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-- compression_level int);
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-- ALTER EXTENSION citus ADD FUNCTION pg_catalog.alter_columnar_table_reset(
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-- table_name regclass,
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-- chunk_group_row_limit bool,
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-- stripe_row_limit bool,
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-- compression bool,
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-- compression_level bool);
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-- END IF;
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-- END IF;
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-- END;
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-- $ceoe$;
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--COMMENT ON FUNCTION citus_internal.columnar_ensure_objects_exist()
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-- IS 'internal function to be called by pg_catalog.citus_finish_pg_upgrade responsible for creating the columnar objects';
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RESET search_path;
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-- columnar--10.0.-1 --10.0.2
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GRANT USAGE ON SCHEMA columnar TO PUBLIC;
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GRANT SELECT ON ALL tables IN SCHEMA columnar TO PUBLIC ;
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-- columnar--10.0-3--10.1-1.sql
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-- Drop foreign keys between columnar metadata tables.
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-- Postgres assigns different names to those foreign keys in PG11, so act accordingly.
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DO $proc$
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BEGIN
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IF substring(current_Setting('server_version'), '\d+')::int >= 12 THEN
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EXECUTE $$
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ALTER TABLE columnar.chunk DROP CONSTRAINT IF EXISTS chunk_storage_id_stripe_num_chunk_group_num_fkey;
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ALTER TABLE columnar.chunk_group DROP CONSTRAINT IF EXISTS chunk_group_storage_id_stripe_num_fkey;
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$$;
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ELSE
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EXECUTE $$
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ALTER TABLE columnar.chunk DROP CONSTRAINT IF EXISTS chunk_storage_id_fkey;
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ALTER TABLE columnar.chunk_group DROP CONSTRAINT IF EXISTS chunk_group_storage_id_fkey;
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$$;
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END IF;
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END$proc$;
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-- since we dropped pg11 support, we don't need to worry about missing
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-- columnar objects when upgrading postgres
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-- DROP FUNCTION citus_internal.columnar_ensure_objects_exist();
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--10.1-1 -- 10.2-1
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-- columnar--10.1-1--10.2-1.sql
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-- For a proper mapping between tid & (stripe, row_num), add a new column to
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-- columnar.stripe and define a BTREE index on this column.
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-- Also include storage_id column for per-relation scans.
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ALTER TABLE columnar.stripe ADD COLUMN first_row_number bigint;
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CREATE INDEX stripe_first_row_number_idx ON columnar.stripe USING BTREE(storage_id, first_row_number);
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-- Populate first_row_number column of columnar.stripe table.
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--
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-- For simplicity, we calculate MAX(row_count) value across all the stripes
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-- of all the columanar tables and then use it to populate first_row_number
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-- column. This would introduce some gaps however we are okay with that since
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-- it's already the case with regular INSERT/COPY's.
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DO $$
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DECLARE
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max_row_count bigint;
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-- this should be equal to columnar_storage.h/COLUMNAR_FIRST_ROW_NUMBER
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COLUMNAR_FIRST_ROW_NUMBER constant bigint := 1;
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BEGIN
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SELECT MAX(row_count) INTO max_row_count FROM columnar.stripe;
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UPDATE columnar.stripe SET first_row_number = COLUMNAR_FIRST_ROW_NUMBER +
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(stripe_num - 1) * max_row_count;
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END;
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$$;
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--#include "udfs/upgrade_columnar_storage/10.2-1.sql"
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CREATE OR REPLACE FUNCTION citus_internal.upgrade_columnar_storage(rel regclass)
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RETURNS VOID
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STRICT
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LANGUAGE c AS 'MODULE_PATHNAME', $$upgrade_columnar_storage$$;
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COMMENT ON FUNCTION citus_internal.upgrade_columnar_storage(regclass)
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IS 'function to upgrade the columnar storage, if necessary';
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--#include "udfs/downgrade_columnar_storage/10.2-1.sql"
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CREATE OR REPLACE FUNCTION citus_internal.downgrade_columnar_storage(rel regclass)
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RETURNS VOID
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STRICT
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LANGUAGE c AS 'MODULE_PATHNAME', $$downgrade_columnar_storage$$;
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COMMENT ON FUNCTION citus_internal.downgrade_columnar_storage(regclass)
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IS 'function to downgrade the columnar storage, if necessary';
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-- upgrade storage for all columnar relations
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SELECT citus_internal.upgrade_columnar_storage(c.oid) FROM pg_class c, pg_am a
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WHERE c.relam = a.oid AND amname = 'columnar';
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-- columnar--10.2-1--10.2-2.sql
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-- revoke read access for columnar.chunk from unprivileged
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-- user as it contains chunk min/max values
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|
|
REVOKE SELECT ON columnar.chunk FROM PUBLIC;
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-- columnar--10.2-2--10.2-3.sql
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|
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-- Since stripe_first_row_number_idx is required to scan a columnar table, we
|
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|
|
-- need to make sure that it is created before doing anything with columnar
|
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|
-- tables during pg upgrades.
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|
|
--
|
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|
|
-- However, a plain btree index is not a dependency of a table, so pg_upgrade
|
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|
|
-- cannot guarantee that stripe_first_row_number_idx gets created when
|
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|
|
-- creating columnar.stripe, unless we make it a unique "constraint".
|
|
|
|
|
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|
|
--
|
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|
|
|
|
|
|
-- To do that, drop stripe_first_row_number_idx and create a unique
|
|
|
|
|
|
|
|
-- constraint with the same name to keep the code change at minimum.
|
|
|
|
|
|
|
|
DROP INDEX columnar.stripe_first_row_number_idx;
|
|
|
|
|
|
|
|
ALTER TABLE columnar.stripe ADD CONSTRAINT stripe_first_row_number_idx
|
|
|
|
|
|
|
|
UNIQUE (storage_id, first_row_number);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
-- columnar--10.2-3--10.2-4.sql
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CREATE OR REPLACE FUNCTION citus_internal.columnar_ensure_am_depends_catalog()
|
|
|
|
|
|
|
|
RETURNS void
|
|
|
|
|
|
|
|
LANGUAGE plpgsql
|
|
|
|
|
|
|
|
SET search_path = pg_catalog
|
|
|
|
|
|
|
|
AS $func$
|
|
|
|
|
|
|
|
BEGIN
|
|
|
|
|
|
|
|
INSERT INTO pg_depend
|
|
|
|
|
|
|
|
SELECT -- Define a dependency edge from "columnar table access method" ..
|
|
|
|
|
|
|
|
'pg_am'::regclass::oid as classid,
|
|
|
|
|
|
|
|
(select oid from pg_am where amname = 'columnar') as objid,
|
|
|
|
|
|
|
|
0 as objsubid,
|
|
|
|
|
|
|
|
-- ... to each object that is registered to pg_class and that lives
|
|
|
|
|
|
|
|
-- in "columnar" schema. That contains catalog tables, indexes
|
|
|
|
|
|
|
|
-- created on them and the sequences created in "columnar" schema.
|
|
|
|
|
|
|
|
--
|
|
|
|
|
|
|
|
-- Given the possibility of user might have created their own objects
|
|
|
|
|
|
|
|
-- in columnar schema, we explicitly specify list of objects that we
|
|
|
|
|
|
|
|
-- are interested in.
|
|
|
|
|
|
|
|
'pg_class'::regclass::oid as refclassid,
|
|
|
|
|
|
|
|
columnar_schema_members.relname::regclass::oid as refobjid,
|
|
|
|
|
|
|
|
0 as refobjsubid,
|
|
|
|
|
|
|
|
'n' as deptype
|
|
|
|
|
|
|
|
FROM (VALUES ('columnar.chunk'),
|
|
|
|
|
|
|
|
('columnar.chunk_group'),
|
|
|
|
|
|
|
|
('columnar.chunk_group_pkey'),
|
|
|
|
|
|
|
|
('columnar.chunk_pkey'),
|
|
|
|
|
|
|
|
('columnar.options'),
|
|
|
|
|
|
|
|
('columnar.options_pkey'),
|
|
|
|
|
|
|
|
('columnar.storageid_seq'),
|
|
|
|
|
|
|
|
('columnar.stripe'),
|
|
|
|
|
|
|
|
('columnar.stripe_first_row_number_idx'),
|
|
|
|
|
|
|
|
('columnar.stripe_pkey')
|
|
|
|
|
|
|
|
) columnar_schema_members(relname)
|
|
|
|
|
|
|
|
-- Avoid inserting duplicate entries into pg_depend.
|
|
|
|
|
|
|
|
EXCEPT TABLE pg_depend;
|
|
|
|
|
|
|
|
END;
|
|
|
|
|
|
|
|
$func$;
|
|
|
|
|
|
|
|
COMMENT ON FUNCTION citus_internal.columnar_ensure_am_depends_catalog()
|
|
|
|
|
|
|
|
IS 'internal function responsible for creating dependencies from columnar '
|
|
|
|
|
|
|
|
'table access method to the rel objects in columnar schema';
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SELECT citus_internal.columnar_ensure_am_depends_catalog();
|