Bug#40465: mysqldump.test does no checking of dump or restore.
Created new .test file - mysqldump_restore that does this for a limited number of basic cases. Created new .inc file - mysqldump.inc - renames original table and uses mysqldump output to recreate the table, then uses diff_tables.inc to compare the two tables. Backported include/diff_tables.inc to facilitate this testing.
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122
mysql-test/include/diff_tables.inc
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122
mysql-test/include/diff_tables.inc
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# ==== Purpose ====
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#
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# Check if the two given tables (possibly residing on different
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# master/slave servers) are equal.
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#
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# ==== Usage ====
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#
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# The tables to check are given by the test language variables
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# $diff_table_1 and $diff_table_2. They must be of the
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# following form:
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#
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# [master:|slave:]database.table
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#
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# I.e., both database and table must be speicified. Optionally, you
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# can prefix the name with 'master:' (to read the table on master) or
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# with 'slave:' (to read the table on slave). If no prefix is given,
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# reads the table from the current connection. If one of these
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# variables has a prefix, both should have a prefix.
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#
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# ==== Side effects ====
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#
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# - Prints "Comparing tables $diff_table_1 and $diff_tables_2".
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#
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# - If the tables are different, prints the difference in a
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# system-specific format (unified diff if supported) and generates
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# an error.
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#
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# - If $diff_table_1 or $diff_table_2 begins with 'master:' or
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# 'slave:', it will stay connected to one of those hosts after
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# execution. The host is only guaranteed to remain unchanged if
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# none of $diff_table_1 or $diff_table_2 begins with 'master:' or
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# 'slave:'.
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#
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# ==== Bugs ====
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#
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# - It is currently not possible to use this for tables that are
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# supposed to be different, because if the files are different:
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# - 'diff' produces system-dependent output,
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# - the output includes the absolute path of the compared files,
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# - the output includes a timestamp.
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# To fix that, we'd probably have to use SQL to compute the
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# symmetric difference between the tables. I'm not sure how to do
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# that efficiently. If we implement this, it would be nice to
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# compare the table definitions too.
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#
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# - It actually compares the result of "SELECT * FROM table ORDER BY
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# col1, col2, ..., colN INTO OUTFILE 'file'". Hence, it is assumed
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# that the comparison orders for both tables are equal and that two
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# rows that are equal in the comparison order cannot differ, e.g.,
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# by character case.
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# ==== Save both tables to file ====
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--echo Comparing tables $diff_table_1 and $diff_table_2
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disable_query_log;
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--error 0,1
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--remove_file $MYSQLTEST_VARDIR/tmp/diff_table_1
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--error 0,1
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--remove_file $MYSQLTEST_VARDIR/tmp/diff_table_2
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let $_diff_table=$diff_table_2;
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let $_diff_i=2;
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while ($_diff_i) {
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# Parse out any leading "master:" or "slave:" from the table
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# specification and connect the appropriate server.
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let $_diff_conn_master=`SELECT SUBSTR('$_diff_table', 1, 7) = 'master:'`;
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if ($_diff_conn_master) {
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let $_diff_table=`SELECT SUBSTR('$_diff_table', 8)`;
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connection master;
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}
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let $_diff_conn_slave=`SELECT SUBSTR('$_diff_table', 1, 6) = 'slave:'`;
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if ($_diff_conn_slave) {
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let $_diff_table=`SELECT SUBSTR('$_diff_table', 7)`;
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connection slave;
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}
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# Sanity-check the input.
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let $_diff_error= `SELECT '$_diff_table' NOT LIKE '_%._%'`;
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if ($_diff_error) {
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--echo !!!ERROR IN TEST: \$diff_table_$_diff_i='$_diff_table' is not in the form database.table
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exit;
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}
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# We need the output files to be sorted (so that diff_files does not
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# think the files are different just because they are differently
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# ordered). To this end, we first generate a query that sorts the
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# table by all columns. Since ORDER BY accept column indices, we
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# just generate a comma-separated list of all numbers from 1 to the
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# number of columns in the table.
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let $_diff_column_index=`SELECT MAX(ordinal_position)
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FROM information_schema.columns
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WHERE CONCAT(table_schema, '.', table_name) =
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'$_diff_table'`;
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let $_diff_column_list=$_diff_column_index;
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dec $_diff_column_index;
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while ($_diff_column_index) {
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let $_diff_column_list=$_diff_column_index, $_diff_column_list;
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dec $_diff_column_index;
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}
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# Now that we have the comma-separated list of columns, we can write
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# the table to a file.
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eval SELECT * FROM $_diff_table ORDER BY $_diff_column_list
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INTO OUTFILE '$MYSQLTEST_VARDIR/tmp/diff_table_$_diff_i';
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# Do the same for $diff_table_1.
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dec $_diff_i;
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let $_diff_table=$diff_table_1;
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}
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# ==== Compare the generated files ====
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diff_files $MYSQLTEST_VARDIR/tmp/diff_table_1 $MYSQLTEST_VARDIR/tmp/diff_table_2;
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--remove_file $MYSQLTEST_VARDIR/tmp/diff_table_1
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--remove_file $MYSQLTEST_VARDIR/tmp/diff_table_2
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enable_query_log;
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41
mysql-test/include/mysqldump.inc
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mysql-test/include/mysqldump.inc
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################################################################################
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# mysqldump.inc
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# SUMMARY: include file to facilitate testing the quality of mysqldump output
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# INPUTS: Two variables:
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# $table_name - the name of the table that was dumped
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# $mysqldumpfile - the name of the file that captured mysqldump output
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# OUTPUTS: minor echo data:
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# We 'echo' some stage information to the .result file:
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# 'altering original table', 'restoring from dumpfile', 'comparing'
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# OTHER FILES: We use include/diff_tables.inc to compare the original, renamed
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# table with the 'restored' one.
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# DESCRIPTION: This file works by being fed the name of the original table
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# and a mysqldump output file. The original table is then renamed
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# to <table_name>_orig, the mysqldump file is used to recreate the
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# table, then diff_tables.inc is called to compare them.
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# LIMITATIONS: Does *NOT* work with xml output!
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# AUTHOR: pcrews
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# LAST CHANGE: 2009-05-21
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# PURPOSE: Bug#40465: mysqldump.test does no checking of dump or restore
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################################################################################
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--echo # Begin testing mysqldump output + restore
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--echo # Create 'original table name - <table>_orig
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# NOTE: We use SET then let as query_get_value has issues with the extra commas
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# used in the CONCAT statement.
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eval SET @orig_table_name = CONCAT('$table_name', '_orig');
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let $orig_table_name = query_get_value(SELECT @orig_table_name,@orig_table_name,1);
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--echo # Rename original table
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eval ALTER TABLE $table_name RENAME to $orig_table_name;
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--echo # Recreate table from mysqldump output
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--exec $MYSQL test < $mysqldumpfile
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--echo # Compare original and recreated tables
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--echo # Recreated table: $table_name
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--echo # Original table: $orig_table_name
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let $diff_table_1 = $table_name;
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let $diff_table_2 = $orig_table_name;
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--source include/diff_tables.inc
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--echo # Cleanup
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--remove_file $mysqldumpfile
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eval DROP TABLE $table_name, $orig_table_name;
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110
mysql-test/r/mysqldump_restore.result
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mysql-test/r/mysqldump_restore.result
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# Set concurrent_insert = 0 to prevent random errors
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# will reset to original value at the end of the test
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SET @old_concurrent_insert = @@global.concurrent_insert;
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SET @@global.concurrent_insert = 0;
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# Pre-test cleanup
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DROP TABLE IF EXISTS t1;
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# Begin tests
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#
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# Bug#2005 Long decimal comparison bug.
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#
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CREATE TABLE t1 (a decimal(64, 20));
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INSERT INTO t1 VALUES ("1234567890123456789012345678901234567890"),
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("0987654321098765432109876543210987654321");
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# Begin testing mysqldump output + restore
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# Create 'original table name - <table>_orig
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SET @orig_table_name = CONCAT('test.t1', '_orig');
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# Rename original table
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ALTER TABLE test.t1 RENAME to test.t1_orig;
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# Recreate table from mysqldump output
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# Compare original and recreated tables
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# Recreated table: test.t1
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# Original table: test.t1_orig
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Comparing tables test.t1 and test.t1_orig
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# Cleanup
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DROP TABLE test.t1, test.t1_orig;
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#
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# Bug#3361 mysqldump quotes DECIMAL values inconsistently
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#
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CREATE TABLE t1 (a DECIMAL(10,5), b FLOAT);
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INSERT INTO t1 VALUES (1.2345, 2.3456);
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INSERT INTO t1 VALUES ('1.2345', 2.3456);
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INSERT INTO t1 VALUES ("1.2345", 2.3456);
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SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='ANSI_QUOTES';
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INSERT INTO t1 VALUES (1.2345, 2.3456);
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INSERT INTO t1 VALUES ('1.2345', 2.3456);
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INSERT INTO t1 VALUES ("1.2345", 2.3456);
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ERROR 42S22: Unknown column '1.2345' in 'field list'
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SET SQL_MODE=@OLD_SQL_MODE;
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# Begin testing mysqldump output + restore
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# Create 'original table name - <table>_orig
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SET @orig_table_name = CONCAT('test.t1', '_orig');
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# Rename original table
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ALTER TABLE test.t1 RENAME to test.t1_orig;
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# Recreate table from mysqldump output
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# Compare original and recreated tables
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# Recreated table: test.t1
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# Original table: test.t1_orig
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Comparing tables test.t1 and test.t1_orig
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# Cleanup
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DROP TABLE test.t1, test.t1_orig;
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#
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# Bug#1994 mysqldump does not correctly dump UCS2 data
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# Bug#4261 mysqldump 10.7 (mysql 4.1.2) --skip-extended-insert drops NULL from inserts
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#
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CREATE TABLE t1 (a VARCHAR(255)) DEFAULT CHARSET koi8r;
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INSERT INTO t1 VALUES (_koi8r x'C1C2C3C4C5'), (NULL);
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# Begin testing mysqldump output + restore
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# Create 'original table name - <table>_orig
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SET @orig_table_name = CONCAT('test.t1', '_orig');
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# Rename original table
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ALTER TABLE test.t1 RENAME to test.t1_orig;
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# Recreate table from mysqldump output
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# Compare original and recreated tables
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# Recreated table: test.t1
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# Original table: test.t1_orig
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Comparing tables test.t1 and test.t1_orig
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# Cleanup
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DROP TABLE test.t1, test.t1_orig;
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#
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# WL#2319 Exclude Tables from dump
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#
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CREATE TABLE t1 (a int);
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CREATE TABLE t2 (a int);
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INSERT INTO t1 VALUES (1),(2),(3);
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INSERT INTO t2 VALUES (4),(5),(6);
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# Begin testing mysqldump output + restore
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# Create 'original table name - <table>_orig
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SET @orig_table_name = CONCAT('test.t2', '_orig');
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# Rename original table
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ALTER TABLE test.t2 RENAME to test.t2_orig;
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# Recreate table from mysqldump output
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# Compare original and recreated tables
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# Recreated table: test.t2
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# Original table: test.t2_orig
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Comparing tables test.t2 and test.t2_orig
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# Cleanup
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DROP TABLE test.t2, test.t2_orig;
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DROP TABLE t1;
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#
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# Bug#8830 mysqldump --skip-extended-insert causes --hex-blob to dump wrong values
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#
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CREATE TABLE t1 (`b` blob);
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INSERT INTO `t1` VALUES (0x602010000280100005E71A);
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# Begin testing mysqldump output + restore
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# Create 'original table name - <table>_orig
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SET @orig_table_name = CONCAT('test.t1', '_orig');
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# Rename original table
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ALTER TABLE test.t1 RENAME to test.t1_orig;
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# Recreate table from mysqldump output
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# Compare original and recreated tables
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# Recreated table: test.t1
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# Original table: test.t1_orig
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Comparing tables test.t1 and test.t1_orig
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# Cleanup
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DROP TABLE test.t1, test.t1_orig;
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# End tests
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# Cleanup
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# Reset concurrent_insert to its original value
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SET @@global.concurrent_insert = @old_concurrent_insert;
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# remove mysqldumpfile
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120
mysql-test/t/mysqldump_restore.test
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120
mysql-test/t/mysqldump_restore.test
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###############################################################################
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# mysqldump_restore.test
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# Purpose: Tests if mysqldump output can be used to successfully restore
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# tables and data.
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# We CREATE a table, mysqldump it to a file, ALTER the original
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# table's name, recreate the table from the mysqldump file, then
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# utilize include/diff_tables to compare the original and recreated
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# tables.
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#
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# We use several examples from mysqldump.test here and include
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# the relevant bug numbers and headers from that test.
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#
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# NOTE: This test is not currently complete and offers only basic
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# cases of mysqldump output being restored.
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# Also, does NOT work with -X (xml) output!
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#
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# Author: pcrews
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# Created: 2009-05-21
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# Last Change:
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# Change date:
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###############################################################################
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# Embedded server doesn't support external clients
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--source include/not_embedded.inc
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--source include/have_log_bin.inc
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--echo # Set concurrent_insert = 0 to prevent random errors
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--echo # will reset to original value at the end of the test
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SET @old_concurrent_insert = @@global.concurrent_insert;
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SET @@global.concurrent_insert = 0;
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# Define mysqldumpfile here. It is used to capture mysqldump output
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# in order to test the output's ability to restore an exact copy of the table
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let $mysqldumpfile = $MYSQLTEST_VARDIR/tmp/mysqldumpfile.sql;
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--echo # Pre-test cleanup
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--disable_warnings
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DROP TABLE IF EXISTS t1;
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--enable_warnings
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--echo # Begin tests
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--echo #
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--echo # Bug#2005 Long decimal comparison bug.
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--echo #
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CREATE TABLE t1 (a decimal(64, 20));
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INSERT INTO t1 VALUES ("1234567890123456789012345678901234567890"),
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("0987654321098765432109876543210987654321");
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--exec $MYSQL_DUMP --compact test t1 > $mysqldumpfile
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let $table_name = test.t1;
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--source include/mysqldump.inc
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--echo #
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--echo # Bug#3361 mysqldump quotes DECIMAL values inconsistently
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--echo #
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CREATE TABLE t1 (a DECIMAL(10,5), b FLOAT);
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# check at first how mysql work with quoted decimal
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INSERT INTO t1 VALUES (1.2345, 2.3456);
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INSERT INTO t1 VALUES ('1.2345', 2.3456);
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INSERT INTO t1 VALUES ("1.2345", 2.3456);
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SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='ANSI_QUOTES';
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INSERT INTO t1 VALUES (1.2345, 2.3456);
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INSERT INTO t1 VALUES ('1.2345', 2.3456);
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--error ER_BAD_FIELD_ERROR
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INSERT INTO t1 VALUES ("1.2345", 2.3456);
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SET SQL_MODE=@OLD_SQL_MODE;
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# check how mysqldump make quoting
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--exec $MYSQL_DUMP --compact test t1 > $mysqldumpfile
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let $table_name = test.t1;
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--source include/mysqldump.inc
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--echo #
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--echo # Bug#1994 mysqldump does not correctly dump UCS2 data
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--echo # Bug#4261 mysqldump 10.7 (mysql 4.1.2) --skip-extended-insert drops NULL from inserts
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--echo #
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CREATE TABLE t1 (a VARCHAR(255)) DEFAULT CHARSET koi8r;
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INSERT INTO t1 VALUES (_koi8r x'C1C2C3C4C5'), (NULL);
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--exec $MYSQL_DUMP --skip-comments --skip-extended-insert test t1 > $mysqldumpfile
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let $table_name = test.t1;
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--source include/mysqldump.inc
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--echo #
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--echo # WL#2319 Exclude Tables from dump
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--echo #
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CREATE TABLE t1 (a int);
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CREATE TABLE t2 (a int);
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INSERT INTO t1 VALUES (1),(2),(3);
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INSERT INTO t2 VALUES (4),(5),(6);
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--exec $MYSQL_DUMP --skip-comments --ignore-table=test.t1 test > $mysqldumpfile
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let $table_name = test.t2;
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--source include/mysqldump.inc
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DROP TABLE t1;
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--echo #
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--echo # Bug#8830 mysqldump --skip-extended-insert causes --hex-blob to dump wrong values
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--echo #
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CREATE TABLE t1 (`b` blob);
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INSERT INTO `t1` VALUES (0x602010000280100005E71A);
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--exec $MYSQL_DUMP --skip-extended-insert --hex-blob test --skip-comments t1 > $mysqldumpfile
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let $table_name = test.t1;
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--source include/mysqldump.inc
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--echo # End tests
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--echo # Cleanup
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--echo # Reset concurrent_insert to its original value
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SET @@global.concurrent_insert = @old_concurrent_insert;
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--echo # remove mysqldumpfile
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--error 0,1
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--remove_file $mysqldumpfile
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