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74 lines
1.9 KiB
Text
74 lines
1.9 KiB
Text
#
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# r_engine_stats tests that require slow query log.
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#
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--source include/analyze-format.inc
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--source include/have_sequence.inc
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--source include/have_innodb.inc
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--echo #
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--echo # MDEV-34125: ANALYZE FORMAT=JSON: r_engine_stats.pages_read_time_ms has wrong scale
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--echo #
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# Each row is 1K.
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create table t1 (
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a varchar(255),
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b varchar(255),
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c varchar(255),
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d varchar(255),
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primary key(a,b,c,d)
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) engine=innodb;
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SET unique_checks=0, foreign_key_checks= 0;
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begin;
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# The data size is 160K * 1K = 160M
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# 16M / (page_size=16K) = 1K pages.
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insert into t1 select
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repeat(uuid(), 7),
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repeat(uuid(), 7),
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repeat(uuid(), 7),
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repeat(uuid(), 7)
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from seq_1_to_16384;
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commit;
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SET GLOBAL innodb_fast_shutdown=0;
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source include/restart_mysqld.inc;
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set log_slow_verbosity='engine';
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set long_query_time=0.0;
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let $analyze_output= `analyze format=json
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select * from t1 force index (PRIMARY) order by a desc, b desc, c desc, d desc`;
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evalp set @js='$analyze_output';
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set @pages_read_time_ms=
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(select json_value(@js,'$.query_block.nested_loop[0].table.r_engine_stats.pages_read_time_ms'));
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let ANALYZE_PAGES=`select @pages_read_time_ms`;
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let SLOW_LOG_FILE= `select @@slow_query_log_file`;
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perl;
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my $slow_log_file= $ENV{'SLOW_LOG_FILE'} or die "SLOW_LOG_FILE not set";
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my $analyze_pages=$ENV{'ANALYZE_PAGES'};
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open(FILE, $slow_log_file) or die "Failed to open $slow_log_file";
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# We didn't run any queries touching a storage engine after the query of
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# interest, so we will be fine here if we just get the last occurrence of
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# Pages_read_time: NNNN in the file
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while(<FILE>) {
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$slow_log_pages=$1 if (/Pages_read_time: ([0-9.]+)/);
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}
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close(FILE);
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if ( $slow_log_pages > $analyze_pages * 0.95 &&
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$slow_log_pages < $analyze_pages * 1.05) {
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print "\n\n OK: pages_read_time is same in slow log and ANALYZE\n\n";
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} else {
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print "\n\n FAIL: $slow_log_pages not equal to $analyze_pages\n";
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}
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EOF
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set long_query_time=default;
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drop table t1;
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