6155932b60
pg_reorg broke catalog definition if the target table had any dropped columns. Now pg_reorg removes dropped columns and renumbers valid columns. You can use pg_reorg to shrink column definitions if you have many dropped columns. (without pg_reorg, dropped columns are filled with zero forever)
114 lines
2.8 KiB
SQL
Executable File
114 lines
2.8 KiB
SQL
Executable File
SET client_min_messages = warning;
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--
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-- create table.
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--
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CREATE TABLE tbl_cluster (
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col1 int,
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col2 timestamp,
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":-)" text,
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PRIMARY KEY (":-)", col1)
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) WITH (fillfactor = 70);
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CREATE INDEX cidx_cluster ON tbl_cluster (col2, length(":-)"));
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ALTER TABLE tbl_cluster CLUSTER ON cidx_cluster;
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CREATE TABLE tbl_only_pkey (
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col1 int PRIMARY KEY,
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":-)" text
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);
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CREATE TABLE tbl_only_ckey (
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col1 int,
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col2 timestamp,
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":-)" text
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) WITH (fillfactor = 70);
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CREATE INDEX cidx_only_ckey ON tbl_only_ckey (col2, ":-)");
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ALTER TABLE tbl_only_ckey CLUSTER ON cidx_only_ckey;
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CREATE TABLE tbl_gistkey (
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id integer PRIMARY KEY,
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c circle
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);
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CREATE INDEX cidx_circle ON tbl_gistkey USING gist (c);
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ALTER TABLE tbl_gistkey CLUSTER ON cidx_circle;
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CREATE TABLE tbl_with_dropped_column (
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d1 text,
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c1 text,
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id integer PRIMARY KEY,
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d2 text,
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c2 text,
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d3 text
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);
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ALTER TABLE tbl_with_dropped_column CLUSTER ON tbl_with_dropped_column_pkey;
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CREATE INDEX idx_c1c2 ON tbl_with_dropped_column (c1, c2);
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CREATE INDEX idx_c2c1 ON tbl_with_dropped_column (c2, c1);
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--
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-- insert data
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--
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INSERT INTO tbl_cluster VALUES(1, '2008-12-31 10:00:00', 'admin');
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INSERT INTO tbl_cluster VALUES(2, '2008-01-01 00:00:00', 'king');
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INSERT INTO tbl_cluster VALUES(3, '2008-03-04 12:00:00', 'joker');
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INSERT INTO tbl_cluster VALUES(4, '2008-03-05 15:00:00', 'queen');
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INSERT INTO tbl_cluster VALUES(5, '2008-01-01 00:30:00', sqrt(2::numeric(1000,999))::text || sqrt(3::numeric(1000,999))::text);
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INSERT INTO tbl_only_pkey VALUES(1, 'abc');
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INSERT INTO tbl_only_pkey VALUES(2, 'def');
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INSERT INTO tbl_only_ckey VALUES(1, '2008-01-01 00:00:00', 'abc');
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INSERT INTO tbl_only_ckey VALUES(2, '2008-02-01 00:00:00', 'def');
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INSERT INTO tbl_gistkey VALUES(1, '<(1,2),3>');
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INSERT INTO tbl_gistkey VALUES(2, '<(4,5),6>');
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INSERT INTO tbl_with_dropped_column VALUES('d1', 'c1', 2, 'd2', 'c2', 'd3');
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INSERT INTO tbl_with_dropped_column VALUES('d1', 'c1', 1, 'd2', 'c2', 'd3');
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ALTER TABLE tbl_with_dropped_column DROP COLUMN d1;
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ALTER TABLE tbl_with_dropped_column DROP COLUMN d2;
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ALTER TABLE tbl_with_dropped_column DROP COLUMN d3;
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ALTER TABLE tbl_with_dropped_column ADD COLUMN c3 text;
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--
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-- before
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--
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SELECT * FROM tbl_with_dropped_column;
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--
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-- do reorg
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--
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\! pg_reorg --dbname=contrib_regression --no-order
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\! pg_reorg --dbname=contrib_regression
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\! pg_reorg --dbname=contrib_regression --table=tbl_cluster
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--
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-- after
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--
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\d tbl_cluster
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\d tbl_gistkey
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\d tbl_only_ckey
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\d tbl_only_pkey
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\d tbl_with_dropped_column
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SELECT col1, to_char(col2, 'YYYY-MM-DD HH24:MI:SS'), ":-)" FROM tbl_cluster;
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SELECT * FROM tbl_only_ckey ORDER BY 1;
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SELECT * FROM tbl_only_pkey ORDER BY 1;
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SELECT * FROM tbl_gistkey ORDER BY 1;
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SELECT * FROM tbl_with_dropped_column;
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--
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-- clean up
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--
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DROP TABLE tbl_cluster;
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DROP TABLE tbl_only_pkey;
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DROP TABLE tbl_only_ckey;
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DROP TABLE tbl_gistkey;
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DROP TABLE tbl_with_dropped_column;
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RESET client_min_messages;
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