citus/cstore_fdw--1.7.sql

114 lines
3.2 KiB
PL/PgSQL

/* cstore_fdw/cstore_fdw--1.7.sql */
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "CREATE EXTENSION cstore_fdw" to load this file. \quit
CREATE FUNCTION cstore_fdw_handler()
RETURNS fdw_handler
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT;
CREATE FUNCTION cstore_fdw_validator(text[], oid)
RETURNS void
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT;
CREATE FOREIGN DATA WRAPPER cstore_fdw
HANDLER cstore_fdw_handler
VALIDATOR cstore_fdw_validator;
CREATE FUNCTION cstore_ddl_event_end_trigger()
RETURNS event_trigger
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT;
CREATE EVENT TRIGGER cstore_ddl_event_end
ON ddl_command_end
EXECUTE PROCEDURE cstore_ddl_event_end_trigger();
CREATE FUNCTION public.cstore_table_size(relation regclass)
RETURNS bigint
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION cstore_clean_table_resources(oid)
RETURNS void
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT;
CREATE OR REPLACE FUNCTION cstore_drop_trigger()
RETURNS event_trigger
LANGUAGE plpgsql
AS $csdt$
DECLARE v_obj record;
BEGIN
FOR v_obj IN SELECT * FROM pg_event_trigger_dropped_objects() LOOP
IF v_obj.object_type NOT IN ('table', 'foreign table') THEN
CONTINUE;
END IF;
PERFORM cstore.cstore_clean_table_resources(v_obj.objid);
END LOOP;
END;
$csdt$;
CREATE EVENT TRIGGER cstore_drop_event
ON SQL_DROP
EXECUTE PROCEDURE cstore_drop_trigger();
CREATE TABLE cstore_tables (
relid oid NOT NULL,
block_row_count int NOT NULL,
version_major bigint NOT NULL,
version_minor bigint NOT NULL,
PRIMARY KEY (relid)
) WITH (user_catalog_table = true);
COMMENT ON TABLE cstore_tables IS 'CStore table wide metadata';
CREATE TABLE cstore_stripes (
relid oid NOT NULL,
stripe bigint NOT NULL,
file_offset bigint NOT NULL,
data_length bigint NOT NULL,
block_count int NOT NULL,
row_count bigint NOT NULL,
PRIMARY KEY (relid, stripe),
FOREIGN KEY (relid) REFERENCES cstore_tables(relid) ON DELETE CASCADE INITIALLY DEFERRED
) WITH (user_catalog_table = true);
COMMENT ON TABLE cstore_tables IS 'CStore per stripe metadata';
CREATE TABLE cstore_stripe_attr (
relid oid NOT NULL,
stripe bigint NOT NULL,
attr int NOT NULL,
exists_size bigint NOT NULL,
value_size bigint NOT NULL,
PRIMARY KEY (relid, stripe, attr),
FOREIGN KEY (relid, stripe) REFERENCES cstore_stripes(relid, stripe) ON DELETE CASCADE INITIALLY DEFERRED
) WITH (user_catalog_table = true);
COMMENT ON TABLE cstore_tables IS 'CStore per stripe/column combination metadata';
CREATE TABLE cstore_skipnodes (
relid oid NOT NULL,
stripe bigint NOT NULL,
attr int NOT NULL,
block int NOT NULL,
row_count bigint NOT NULL,
minimum_value bytea,
maximum_value bytea,
value_stream_offset bigint NOT NULL,
value_stream_length bigint NOT NULL,
exists_stream_offset bigint NOT NULL,
exists_stream_length bigint NOT NULL,
value_compression_type int NOT NULL,
PRIMARY KEY (relid, stripe, attr, block),
FOREIGN KEY (relid, stripe, attr) REFERENCES cstore_stripe_attr(relid, stripe, attr) ON DELETE CASCADE INITIALLY DEFERRED
) WITH (user_catalog_table = true);
COMMENT ON TABLE cstore_tables IS 'CStore per block metadata';