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1f282c24e4
The regression tests of pg_walinspect are reworked on a few aspects: - Reorganization on the validation checks done for the start and end LSNs on the six SQL functions currently available in 1.1. - Addition of a few patterns doing bound checks for invalid start LSN, invalid end LSN, and failures in reading LSN positions, for anything that's been missing. - Use of a consistent style across the whole, limiting blank lines across the queries. - Addition of a new test script for upgrades. For the time being, this is straight-forward with a check that the upgrade from 1.0 works correctly. This will be made more complicated once the interface of this extension is reworked in 1.1 with a follow-up patch. Most of the contents of this commit are extracted from a larger patch by the same author, largely reorganized by me to minimize the differences with the upcoming work aimed to lift the bound checks on the input LSNs used by the functions of this extension. Author: Bharath Rupireddy, Michael Paquier Discussion: https://postgr.es/m/CALj2ACU0_q-o4DSweyaW9NO1KBx-QkN6G_OzYQvpjf3CZVASkg@mail.gmail.com
162 lines
7.3 KiB
SQL
162 lines
7.3 KiB
SQL
CREATE EXTENSION pg_walinspect;
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-- Mask DETAIL messages as these could refer to current LSN positions.
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\set VERBOSITY terse
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-- Make sure checkpoints don't interfere with the test.
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SELECT 'init' FROM pg_create_physical_replication_slot('regress_pg_walinspect_slot', true, false);
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CREATE TABLE sample_tbl(col1 int, col2 int);
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-- Save some LSNs for comparisons
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SELECT pg_current_wal_lsn() AS wal_lsn1 \gset
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INSERT INTO sample_tbl SELECT * FROM generate_series(1, 2);
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SELECT pg_current_wal_lsn() AS wal_lsn2 \gset
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INSERT INTO sample_tbl SELECT * FROM generate_series(3, 4);
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-- ===================================================================
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-- Tests for input validation
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-- ===================================================================
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-- Invalid input LSN.
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SELECT * FROM pg_get_wal_record_info('0/0');
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-- Invalid start LSN.
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SELECT * FROM pg_get_wal_records_info('0/0', :'wal_lsn1');
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SELECT * FROM pg_get_wal_stats('0/0', :'wal_lsn1');
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SELECT * FROM pg_get_wal_block_info('0/0', :'wal_lsn1');
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-- Start LSN > End LSN.
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SELECT * FROM pg_get_wal_records_info(:'wal_lsn2', :'wal_lsn1');
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SELECT * FROM pg_get_wal_stats(:'wal_lsn2', :'wal_lsn1');
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SELECT * FROM pg_get_wal_block_info(:'wal_lsn2', :'wal_lsn1');
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-- LSNs with the highest value possible.
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_record_info('FFFFFFFF/FFFFFFFF');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_records_info_till_end_of_wal('FFFFFFFF/FFFFFFFF');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_stats_till_end_of_wal('FFFFFFFF/FFFFFFFF');
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-- failures with end LSNs
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_records_info(:'wal_lsn1', 'FFFFFFFF/FFFFFFFF');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_stats(:'wal_lsn1', 'FFFFFFFF/FFFFFFFF');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_block_info(:'wal_lsn1', 'FFFFFFFF/FFFFFFFF');
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-- failures with start LSNs
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_records_info('FFFFFFFF/FFFFFFFE', 'FFFFFFFF/FFFFFFFF');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_stats('FFFFFFFF/FFFFFFFE', 'FFFFFFFF/FFFFFFFF');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_block_info('FFFFFFFF/FFFFFFFE', 'FFFFFFFF/FFFFFFFF');
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-- ===================================================================
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-- Tests for all function executions
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-- ===================================================================
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_record_info(:'wal_lsn1');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_records_info_till_end_of_wal(:'wal_lsn1');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_stats_till_end_of_wal(:'wal_lsn1');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_records_info(:'wal_lsn1', :'wal_lsn2');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_stats(:'wal_lsn1', :'wal_lsn2');
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SELECT COUNT(*) >= 0 AS ok FROM pg_get_wal_block_info(:'wal_lsn1', :'wal_lsn2');
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-- ===================================================================
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-- Test for filtering out WAL records of a particular table
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-- ===================================================================
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SELECT oid AS sample_tbl_oid FROM pg_class WHERE relname = 'sample_tbl' \gset
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SELECT COUNT(*) >= 1 AS ok FROM pg_get_wal_records_info(:'wal_lsn1', :'wal_lsn2')
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WHERE block_ref LIKE concat('%', :'sample_tbl_oid', '%') AND resource_manager = 'Heap';
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-- ===================================================================
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-- Test for filtering out WAL records based on resource_manager and
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-- record_type
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-- ===================================================================
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SELECT COUNT(*) >= 1 AS ok FROM pg_get_wal_records_info(:'wal_lsn1', :'wal_lsn2')
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WHERE resource_manager = 'Heap' AND record_type = 'INSERT';
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-- ===================================================================
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-- Tests to get block information from WAL record
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-- ===================================================================
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-- Update table to generate some block data
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SELECT pg_current_wal_lsn() AS wal_lsn3 \gset
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UPDATE sample_tbl SET col1 = col1 + 1 WHERE col1 = 1;
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SELECT pg_current_wal_lsn() AS wal_lsn4 \gset
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-- Check if we get block data from WAL record.
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SELECT COUNT(*) >= 1 AS ok FROM pg_get_wal_block_info(:'wal_lsn3', :'wal_lsn4')
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WHERE relfilenode = :'sample_tbl_oid' AND blockdata IS NOT NULL;
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-- Force full-page image on the next update.
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SELECT pg_current_wal_lsn() AS wal_lsn5 \gset
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CHECKPOINT;
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UPDATE sample_tbl SET col1 = col1 + 1 WHERE col1 = 2;
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SELECT pg_current_wal_lsn() AS wal_lsn6 \gset
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-- Check if we get FPI from WAL record.
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SELECT COUNT(*) >= 1 AS ok FROM pg_get_wal_block_info(:'wal_lsn5', :'wal_lsn6')
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WHERE relfilenode = :'sample_tbl_oid' AND fpi IS NOT NULL;
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-- ===================================================================
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-- Tests for permissions
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-- ===================================================================
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CREATE ROLE regress_pg_walinspect;
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_record_info(pg_lsn)', 'EXECUTE'); -- no
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_records_info(pg_lsn, pg_lsn) ', 'EXECUTE'); -- no
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_stats(pg_lsn, pg_lsn, boolean) ', 'EXECUTE'); -- no
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_block_info(pg_lsn, pg_lsn) ', 'EXECUTE'); -- no
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-- Functions accessible by users with role pg_read_server_files
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GRANT pg_read_server_files TO regress_pg_walinspect;
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_record_info(pg_lsn)', 'EXECUTE'); -- yes
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_records_info(pg_lsn, pg_lsn) ', 'EXECUTE'); -- yes
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_stats(pg_lsn, pg_lsn, boolean) ', 'EXECUTE'); -- yes
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_block_info(pg_lsn, pg_lsn) ', 'EXECUTE'); -- yes
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REVOKE pg_read_server_files FROM regress_pg_walinspect;
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-- Superuser can grant execute to other users
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GRANT EXECUTE ON FUNCTION pg_get_wal_record_info(pg_lsn)
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TO regress_pg_walinspect;
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GRANT EXECUTE ON FUNCTION pg_get_wal_records_info(pg_lsn, pg_lsn)
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TO regress_pg_walinspect;
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GRANT EXECUTE ON FUNCTION pg_get_wal_stats(pg_lsn, pg_lsn, boolean)
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TO regress_pg_walinspect;
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GRANT EXECUTE ON FUNCTION pg_get_wal_block_info(pg_lsn, pg_lsn)
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TO regress_pg_walinspect;
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_record_info(pg_lsn)', 'EXECUTE'); -- yes
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_records_info(pg_lsn, pg_lsn) ', 'EXECUTE'); -- yes
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_stats(pg_lsn, pg_lsn, boolean) ', 'EXECUTE'); -- yes
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SELECT has_function_privilege('regress_pg_walinspect',
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'pg_get_wal_block_info(pg_lsn, pg_lsn) ', 'EXECUTE'); -- yes
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REVOKE EXECUTE ON FUNCTION pg_get_wal_record_info(pg_lsn)
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FROM regress_pg_walinspect;
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REVOKE EXECUTE ON FUNCTION pg_get_wal_records_info(pg_lsn, pg_lsn)
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FROM regress_pg_walinspect;
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REVOKE EXECUTE ON FUNCTION pg_get_wal_stats(pg_lsn, pg_lsn, boolean)
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FROM regress_pg_walinspect;
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REVOKE EXECUTE ON FUNCTION pg_get_wal_block_info(pg_lsn, pg_lsn)
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FROM regress_pg_walinspect;
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-- ===================================================================
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-- Clean up
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-- ===================================================================
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DROP ROLE regress_pg_walinspect;
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SELECT pg_drop_replication_slot('regress_pg_walinspect_slot');
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DROP TABLE sample_tbl;
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DROP EXTENSION pg_walinspect;
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