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This should have been part of MDEV-12288. trx_undo_t::del_marks: Remove. Purge needs to process all undo log records in order to reset the DB_TRX_ID. Before MDEV-12288, it sufficed to only delete the purgeable delete-marked records, and it ignore other undo log. trx_rseg_t::needs_purge: Renamed from trx_rseg_t::last_del_marks. Indicates whether a rollback segment needs to be processed by purge. TRX_UNDO_NEEDS_PURGE: Renamed from TRX_UNDO_DEL_MARKS. Indicates whether a rollback segment needs to be processed by purge. This will be 1 until trx_purge_free_segment() has been invoked. row_purge_record_func(): Set the is_insert flag for TRX_UNDO_INSERT_REC, so that the DB_ROLL_PTR will match in row_purge_reset_trx_id(). trx_purge_fetch_next_rec(): Add a comment about row_purge_record_func() going to set the is_insert flag. trx_purge_read_undo_rec(): Always attempt to read the undo log record. trx_purge_get_next_rec(): Do not skip any undo log records. Even when no clustered index record is going to be removed, we may want to reset some DB_TRX_ID,DB_ROLL_PTR. trx_undo_rec_get_cmpl_info(), trx_undo_rec_get_extern_storage(): Remove. trx_purge_add_undo_to_history(): Set the TRX_UNDO_NEEDS_PURGE flag so that the resetting will work on undo logs that were originally created before MDEV-12288 (MariaDB 10.3.1). trx_undo_roll_ptr_is_insert(), trx_purge_free_segment(): Cleanup (should be no functional change).
123 lines
2.8 KiB
Plaintext
123 lines
2.8 KiB
Plaintext
#
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# Test information_schema.innodb_cmp_per_index
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#
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-- source include/have_innodb.inc
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# Using innodb_log_compressed=0 leads to a larger number of page
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# compressions, because page_cur_insert_rec_zip() will reorganize the
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# page before attempting an insert followed by page compression and
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# page_zip_compress_write_log_no_data().
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if (`SELECT @@innodb_log_compressed_pages = 0`)
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{
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--skip Needs innodb_log_compressed_pages
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}
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# numbers read in this test depend on the page size
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-- source include/have_innodb_16k.inc
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# include/restart_mysqld.inc does not work in embedded mode
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-- source include/not_embedded.inc
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# ensure that all history gets purged on shutdown
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SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
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SET GLOBAL innodb_fast_shutdown=0;
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-- vertical_results
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SET GLOBAL innodb_cmp_per_index_enabled=ON;
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# reset any leftover stats from previous tests
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-- disable_query_log
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-- disable_result_log
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SELECT * FROM information_schema.innodb_cmp_per_index_reset;
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-- enable_result_log
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-- enable_query_log
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# see that the table is empty
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SELECT * FROM information_schema.innodb_cmp_per_index;
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# create a table that uses compression
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CREATE TABLE t (
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a INT,
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b VARCHAR(512),
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c VARCHAR(16),
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PRIMARY KEY (a),
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INDEX (b(512)),
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INDEX (c(16))
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) ENGINE=INNODB KEY_BLOCK_SIZE=2;
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SELECT
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database_name,
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table_name,
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index_name,
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compress_ops,
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compress_ops_ok,
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uncompress_ops
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FROM information_schema.innodb_cmp_per_index
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ORDER BY 1, 2, 3;
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# insert some data into it
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BEGIN;
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-- disable_query_log
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let $i=128;
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while ($i)
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{
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-- eval INSERT INTO t VALUES ($i, REPEAT('x', 512), NULL);
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dec $i;
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}
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-- enable_query_log
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COMMIT;
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ALTER TABLE t DROP INDEX c;
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GRANT USAGE ON *.* TO 'tuser01'@'localhost' IDENTIFIED BY 'cDJvI9s_Uq';
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FLUSH PRIVILEGES;
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-- connect (con1,localhost,tuser01,cDJvI9s_Uq,)
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-- connection con1
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-- error ER_SPECIFIC_ACCESS_DENIED_ERROR
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SELECT * FROM information_schema.innodb_cmp_per_index;
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-- connection default
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-- disconnect con1
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DROP USER 'tuser01'@'localhost';
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SELECT
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database_name,
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table_name,
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index_name,
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CASE WHEN compress_ops=47 and @@innodb_compression_level IN (4,8,9) THEN 65
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ELSE compress_ops END as compress_ops,
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CASE WHEN compress_ops_ok=47 and @@innodb_compression_level IN (4,8,9) THEN 65
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ELSE compress_ops_ok END as compress_ops_ok,
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uncompress_ops
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FROM information_schema.innodb_cmp_per_index
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ORDER BY 1, 2, 3;
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# restart mysqld and see that uncompress ops also gets increased when
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# selecting from the table again
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-- source include/restart_mysqld.inc
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SET GLOBAL innodb_cmp_per_index_enabled=ON;
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SELECT COUNT(*) FROM t;
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SELECT
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database_name,
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table_name,
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index_name,
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compress_ops,
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compress_ops_ok,
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CASE WHEN uncompress_ops=6 and @@innodb_compression_level IN (4,8,9) THEN 9
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ELSE uncompress_ops END as uncompress_ops
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FROM information_schema.innodb_cmp_per_index
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ORDER BY 1, 2, 3;
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DROP TABLE t;
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SET GLOBAL innodb_cmp_per_index_enabled=default;
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