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https://github.com/timescale/timescaledb.git
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d8982c3e15
This patch adds functionality for automatic database and extension creation on remote server. New function arguments: bootstrap_database, bootstrap_user and bootstrap_password.
64 lines
2.9 KiB
PL/PgSQL
64 lines
2.9 KiB
PL/PgSQL
-- This file and its contents are licensed under the Timescale License.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-TIMESCALE for a copy of the license.
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\c :TEST_DBNAME :ROLE_SUPERUSER
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CREATE OR REPLACE FUNCTION create_records()
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RETURNS VOID
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AS :TSL_MODULE_PATHNAME, 'tsl_test_remote_txn_resolve_create_records'
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LANGUAGE C;
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CREATE OR REPLACE FUNCTION create_records_with_concurrent_heal()
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RETURNS VOID
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AS :TSL_MODULE_PATHNAME, 'tsl_test_remote_txn_resolve_create_records_with_concurrent_heal'
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LANGUAGE C;
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SELECT true FROM add_server('loopback', database => :'TEST_DBNAME', port=>current_setting('port')::integer, if_not_exists => true);
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SELECT true FROM add_server('loopback2', database => :'TEST_DBNAME', port=>current_setting('port')::integer, if_not_exists => true);
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SELECT true FROM add_server('loopback3', database => :'TEST_DBNAME', port=>current_setting('port')::integer, if_not_exists => true);
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create table table_modified_by_txns (
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describes text
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);
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--create records will create 3 records
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--1) that is committed
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--2) that is prepared but not committed
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--3) that is prepared and rolled back
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--Thus (1) will be seen right away, (2) will be seen after the heal, (3) will never be seen
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SELECT create_records();
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SELECT * FROM table_modified_by_txns;
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SELECT count(*) FROM pg_prepared_xacts;
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SELECT count(*) FROM _timescaledb_catalog.remote_txn;
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SELECT _timescaledb_internal.remote_txn_heal_server((SELECT OID FROM pg_foreign_server WHERE srvname = 'loopback'));
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SELECT _timescaledb_internal.remote_txn_heal_server((SELECT OID FROM pg_foreign_server WHERE srvname = 'loopback2'));
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SELECT _timescaledb_internal.remote_txn_heal_server((SELECT OID FROM pg_foreign_server WHERE srvname = 'loopback3'));
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SELECT * FROM table_modified_by_txns;
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SELECT count(*) FROM pg_prepared_xacts;
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SELECT count(*) FROM _timescaledb_catalog.remote_txn;
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--insert one record where the heal function is run concurrently during different steps of the process
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--this tests safety when, for example, the heal function is run while the frontend txn is still ongoing.
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SELECT create_records_with_concurrent_heal();
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SELECT * FROM table_modified_by_txns;
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SELECT count(*) FROM pg_prepared_xacts;
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SELECT count(*) FROM _timescaledb_catalog.remote_txn;
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--test that it is safe to have non-ts prepared-txns with heal
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BEGIN;
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INSERT INTO public.table_modified_by_txns VALUES ('non-ts-txn');
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PREPARE TRANSACTION 'non-ts-txn';
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SELECT _timescaledb_internal.remote_txn_heal_server((SELECT OID FROM pg_foreign_server WHERE srvname = 'loopback'));
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SELECT _timescaledb_internal.remote_txn_heal_server((SELECT OID FROM pg_foreign_server WHERE srvname = 'loopback2'));
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SELECT _timescaledb_internal.remote_txn_heal_server((SELECT OID FROM pg_foreign_server WHERE srvname = 'loopback3'));
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COMMIT PREPARED 'non-ts-txn';
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SELECT * FROM table_modified_by_txns;
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SELECT count(*) FROM pg_prepared_xacts;
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SELECT count(*) FROM _timescaledb_catalog.remote_txn;
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