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fix downgrade script for `chunk_group_size_limit` 

- In citus_columnar--14.0-1--13.2-1 remove the new column that was introduced in 14.0.1
pull/8202/head
Imran Zaheer 2025-09-21 20:39:55 +05:00
parent 07a043deb6
commit b0dcc11501
1 changed files with 118 additions and 0 deletions
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118
src/backend/columnar/sql/downgrades/citus_columnar--14.0-1--13.2-1.sql
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@ -1,2 +1,120 @@
-- citus_columnar--14.0-1--13.2-1
-- downgrade version to 13.2-1
-- Remove column `chunk_group_size_limit`
ALTER TABLE columnar_internal.options DROP COLUMN chunk_group_size_limit;
-- Remove column `chunk_group_size_limit` by redefining the functions & views
DROP VIEW IF EXISTS columnar.options;
DROP FUNCTION IF EXISTS alter_columnar_table_set, alter_columnar_table_reset;
-- Redefine
CREATE VIEW columnar.options WITH (security_barrier) AS
SELECT regclass AS relation, chunk_group_row_limit,
stripe_row_limit, compression, compression_level
FROM columnar_internal.options o, pg_class c
WHERE o.regclass = c.oid
AND pg_has_role(c.relowner, 'USAGE');
COMMENT ON VIEW columnar.options
IS 'Columnar options for tables on which the current user has ownership privileges.';
GRANT SELECT ON columnar.options TO PUBLIC;
CREATE OR REPLACE FUNCTION pg_catalog.alter_columnar_table_set(
table_name regclass,
chunk_group_row_limit int DEFAULT NULL,
stripe_row_limit int DEFAULT NULL,
compression name DEFAULT null,
compression_level int DEFAULT NULL)
RETURNS void
LANGUAGE plpgsql AS
$alter_columnar_table_set$
declare
noop BOOLEAN := true;
cmd TEXT := 'ALTER TABLE ' || table_name::text || ' SET (';
begin
if (chunk_group_row_limit is not null) then
if (not noop) then cmd := cmd || ', '; end if;
cmd := cmd || 'columnar.chunk_group_row_limit=' || chunk_group_row_limit;
noop := false;
end if;
if (stripe_row_limit is not null) then
if (not noop) then cmd := cmd || ', '; end if;
cmd := cmd || 'columnar.stripe_row_limit=' || stripe_row_limit;
noop := false;
end if;
if (compression is not null) then
if (not noop) then cmd := cmd || ', '; end if;
cmd := cmd || 'columnar.compression=' || compression;
noop := false;
end if;
if (compression_level is not null) then
if (not noop) then cmd := cmd || ', '; end if;
cmd := cmd || 'columnar.compression_level=' || compression_level;
noop := false;
end if;
cmd := cmd || ')';
if (not noop) then
execute cmd;
end if;
return;
end;
$alter_columnar_table_set$;
COMMENT ON FUNCTION pg_catalog.alter_columnar_table_set(
table_name regclass,
chunk_group_row_limit int,
stripe_row_limit int,
compression name,
compression_level int)
IS 'set one or more options on a columnar table, when set to NULL no change is made';
CREATE OR REPLACE FUNCTION pg_catalog.alter_columnar_table_reset(
table_name regclass,
chunk_group_row_limit bool DEFAULT false,
stripe_row_limit bool DEFAULT false,
compression bool DEFAULT false,
compression_level bool DEFAULT false)
RETURNS void
LANGUAGE plpgsql AS
$alter_columnar_table_reset$
declare
noop BOOLEAN := true;
cmd TEXT := 'ALTER TABLE ' || table_name::text || ' RESET (';
begin
if (chunk_group_row_limit) then
if (not noop) then cmd := cmd || ', '; end if;
cmd := cmd || 'columnar.chunk_group_row_limit';
noop := false;
end if;
if (stripe_row_limit) then
if (not noop) then cmd := cmd || ', '; end if;
cmd := cmd || 'columnar.stripe_row_limit';
noop := false;
end if;
if (compression) then
if (not noop) then cmd := cmd || ', '; end if;
cmd := cmd || 'columnar.compression';
noop := false;
end if;
if (compression_level) then
if (not noop) then cmd := cmd || ', '; end if;
cmd := cmd || 'columnar.compression_level';
noop := false;
end if;
cmd := cmd || ')';
if (not noop) then
execute cmd;
end if;
return;
end;
$alter_columnar_table_reset$;
COMMENT ON FUNCTION pg_catalog.alter_columnar_table_reset(
table_name regclass,
chunk_group_row_limit bool,
stripe_row_limit bool,
compression bool,
compression_level bool)
IS 'reset on or more options on a columnar table to the system defaults';