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Internal memory representation of MEDIUMINT datatype uses 24 bits. This is true for both MariaDB server as well as ColumnStore. MCS plugin code uses TypeHandlerSInt24 and TypeHandlerUInt24 classes to respectively convert the binary representation of the signed and unsigned MEDIUMINT values passed by the server to the plugin. The plugin then outputs the text representation of these values into an open file descriptor which is piped to cpimport for the final load into the MCS db files. The TypeHandlerXInt24 classes were earlier incorrectly using WriteBatchField::ColWriteBatchXInt32() functions which operate on a 4 byte buffer. This resulted in incorrect parsing of MEDIUMINT values. As a fix, we implement WriteBatchField::ColWriteBatchXInt24() functions which correctly handle the 24 bit input buffer used for MEDIUMINT datatype.
Objective
---------
The 'columnstore' test suite includes tests suites aimed at testing MariaDB Columnstore
Database Engine (MCS).
https://mariadb.com/kb/en/mariadb-columnstore/
Test Repo
---------
https://github.com/mariadb-corporation/columnstore-tests/tree/master/mysql-test/suite/columnstore
Test structure
--------------
The current directory structure is shown below:
columnstore/
├── basic
│ ├── r
│ └── t
├── csinternal
│ ├── autopilot
│ │ ├── r
│ │ └── t
│ ├── devregression
│ │ ├── r
│ │ └── t
│ └── include
│ ├── dbt3
│ └── ssb
├── extended
├── include
└── std_data
't' dir contains the tests.
'r' dir contains the expected result files.
'include' dir contains common libraries used by the tests.
'std_data' dir containt test data files.
Test suites:
1. basic
Mostly sanity, high value, shorter execution time tests
2. extended
More complex and involved tests - longer execution time, variations
3. csinternal
Limited to CS internal team - Uses seeded test data. The tests in this are divided into the following two sub-suites:
autopilot - Autopilot cases migrated to MTR
devregression - Part of Dev test suite migrated to MTR
Prerequisites
-------------
1.
MariaDB Server and Columnstore are already installed on the test box, let's call it INSTALL_DIR. Usually it is /usr/share/mysql.
mysql-test is already installed, let's call it MYSQLTEST_DIR. Usually it is /usr/share/mysql-test.
Columnstore-tests local repository, let's call it MCSTEST_DIR. Usually it is columnstore-tests/mysql-test/suite/columnstore
cd MYSQLTEST_DIR
ln -s MCSTEST_DIR MYSQLTEST_DIR/suite/columnstore
2. Only for csinternal tests
For csinternal test run requires the test data 'dbt3' and 'ssb' stored at https://drive.google.com/drive/folders/1dAV4ltxLrvC_7TrZ4zLu42gxx17wzH15?usp=sharing to be available at the following location on the test box:
/data/qa/source/
dbt3
ssb
Setup test environment by running the following:
./mtr --suite=columnstore/csinternal regression_env_setup --extern socket=/var/lib/mysql/mysql.sock
Test Run
--------
Run test suite:
mtr --force --suite=columnstore/basic --extern socket=/var/lib/mysql/mysql.sock
mtr --force --suite=columnstore/extended --extern socket=/var/lib/mysql/mysql.sock
mtr --force --suite=columnstore/csinternal --extern socket=/var/lib/mysql/mysql.sock
mtr --force --suite=columnstore/csinternal/autopilot --extern socket=/var/lib/mysql/mysql.sock
mtr --force --suite=columnstore/csinternal/devregression --extern socket=/var/lib/mysql/mysql.sock
Run individual test:
example
mtr --suite=columnstore/basic mcs12_alter_table.test --extern socket=/var/lib/mysql/mysql.sock
Run by skipping list of tests:
example
mtr --force --skip-test-list=failed.def --suite=columnstore/basic --extern socket=/var/lib/mysql/mysql.sock
failed.def file lists test names in separated lines.