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Use existing statistics test to improve coverage for JSON statistics
Signed-off-by: Michael Okoko <okokomichaels@outlook.com>
This commit is contained in:
Michael Okoko
committed by
Sergei Petrunia
Sergei Petrunia
parent
3692adebd4
commit
058a90e6f5
@ -1,9 +1,13 @@
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--source include/have_stat_tables.inc
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--source include/have_sequence.inc
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--source include/analyze-format.inc
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--echo #
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--echo # Test that we can store JSON arrays in histogram field mysql.column_stats when histogram_type=JSON
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--echo #
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let $histogram_type_override='JSON';
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--source statistics.test
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--source include/have_stat_tables.inc
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--source include/have_sequence.inc
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--source include/analyze-format.inc
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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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@ -14,22 +18,31 @@ set @save_histogram_size=@@histogram_size;
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create table ten(a int primary key);
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insert into ten values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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set histogram_size=100;
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set histogram_type='double_prec_hb';
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create table t1_bin (a varchar(255));
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insert into t1_bin select concat('a-', a) from ten;
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set histogram_size=100;
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analyze table t1_bin persistent for all;
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select hex(histogram) from mysql.column_stats where table_name='t1_bin';
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explain extended select * from t1_bin where a between 'a-3a' and 'zzzzzzzzz';
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analyze select * from t1_bin where a between 'a-3a' and 'zzzzzzzzz';
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set histogram_type=json;
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create table t1_json (a varchar(255));
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insert into t1_json select concat('a-', a) from ten;
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set histogram_type=json;
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analyze table t1_json persistent for all;
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select * from mysql.column_stats where table_name='t1_json';
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explain extended select * from t1_json where a between 'a-3a' and 'zzzzzzzzz';
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analyze select * from t1_json where a between 'a-3a' and 'zzzzzzzzz';
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explain extended select * from t1_json where a < 'b-1a';
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analyze select * from t1_json where a > 'zzzzzzzzz';
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# test different valid JSON strings that are invalid histograms.
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UPDATE mysql.column_stats SET histogram='["a-1", "a-2", {"a": "b"}, "a-3"]' WHERE table_name='t1_json';
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FLUSH TABLES;
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--error ER_JSON_HISTOGRAM_PARSE_FAILED
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explain extended select * from t1_json where a between 'a-3a' and 'zzzzzzzzz';
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--source include/have_sequence.inc
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create table users (
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@ -42,93 +55,15 @@ set histogram_type=json;
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analyze table users persistent for all;
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explain extended select * from users where city = 'Moscow';
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analyze select * from users where city = 'Moscow';
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explain extended select * from users where city = 'Helsinki';
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analyze select * from users where city = 'helsinki';
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explain extended select * from users where city < 'Lagos';
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drop table t1_bin;
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drop table t1_json;
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drop table users;
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CREATE TABLE t1 (
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a int NOT NULL PRIMARY KEY,
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b varchar(32),
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c char(16),
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d date,
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e double,
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f bit(3),
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INDEX idx1 (b, e),
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INDEX idx2 (c, d),
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INDEX idx3 (d),
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INDEX idx4 (e, b, d)
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);
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--disable_result_log
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INSERT INTO t1 VALUES
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(0, NULL, NULL, NULL, NULL, NULL),
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(7, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'dddddddd', '1990-05-15', 0.1, b'100'),
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(17, 'vvvvvvvvvvvvv', 'aaaa', '1989-03-12', 0.01, b'101'),
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(1, 'vvvvvvvvvvvvv', NULL, '1989-03-12', 0.01, b'100'),
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(12, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1999-07-23', 0.112, b'001'),
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(23, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.1, b'100'),
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(8, 'vvvvvvvvvvvvv', 'aaaa', '1999-07-23', 0.1, b'100'),
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(22, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'aaaa', '1989-03-12', 0.112, b'001'),
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(31, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'aaaa', '1999-07-23', 0.01, b'001'),
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(10, NULL, 'aaaa', NULL, 0.01, b'010'),
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(5, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1999-07-23', 0.1, b'100'),
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(15, 'vvvvvvvvvvvvv', 'ccccccccc', '1990-05-15', 0.1, b'010'),
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(30, NULL, 'bbbbbb', NULL, NULL, b'100'),
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(38, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', NULL, NULL, NULL),
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(18, 'zzzzzzzzzzzzzzzzzz', 'ccccccccc', '1990-05-15', 0.01, b'010'),
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(9, 'yyy', 'bbbbbb', '1998-08-28', 0.01, NULL),
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(29, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.012, b'010'),
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(3, 'yyy', 'dddddddd', '1990-05-15', 0.112, b'010'),
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(39, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', NULL, 0.01, b'100'),
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(14, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'ccccccccc', '1990-05-15', 0.1, b'100'),
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(40, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', '1989-03-12', NULL, NULL),
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(44, NULL, 'aaaa', '1989-03-12', NULL, b'010'),
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(19, 'vvvvvvvvvvvvv', 'ccccccccc', '1990-05-15', 0.012, b'011'),
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(21, 'zzzzzzzzzzzzzzzzzz', 'dddddddd', '1989-03-12', 0.112, b'100'),
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(45, NULL, NULL, '1989-03-12', NULL, b'011'),
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(2, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'ccccccccc', '1990-05-15', 0.1, b'001'),
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(35, 'yyy', 'aaaa', '1990-05-15', 0.05, b'011'),
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(4, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.01, b'101'),
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(47, NULL, 'aaaa', '1990-05-15', 0.05, b'010'),
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(42, NULL, 'ccccccccc', '1989-03-12', 0.01, b'010'),
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(32, NULL, 'bbbbbb', '1990-05-15', 0.01, b'011'),
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(49, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww' , 'aaaa', '1990-05-15', NULL, NULL),
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(43, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww' , 'bbbbbb', '1990-05-15', NULL, b'100'),
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(37, 'yyy', NULL, '1989-03-12', 0.05, b'011'),
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(41, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'ccccccccc', '1990-05-15', 0.05, NULL),
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(34, 'yyy', NULL, NULL, NULL, NULL),
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(33, 'zzzzzzzzzzzzzzzzzz', 'dddddddd', '1989-03-12', 0.05, b'011'),
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(24, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1990-05-15', 0.01, b'101'),
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(11, 'yyy', 'ccccccccc', '1999-07-23', 0.1, NULL),
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(25, 'zzzzzzzzzzzzzzzzzz', 'bbb', '1989-03-12', 0.01, b'101');
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--enable_result_log
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SET histogram_type='JSON';
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set histogram_size=25;
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ANALYZE TABLE t1 persistent for all;
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SELECT * FROM mysql.table_stats;
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SELECT * FROM mysql.column_stats;
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SELECT * FROM mysql.index_stats;
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SELECT COUNT(*) FROM t1;
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explain extended select * from t1 where a between '20' and '70';
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analyze select * from t1 where a between '20' and '70';
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# test different valid JSON strings that are invalid histograms.
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UPDATE mysql.column_stats SET histogram='["1", {"a": "b"}, "2"]' WHERE table_name='t1';
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FLUSH TABLES;
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--error ER_JSON_HISTOGRAM_PARSE_FAILED
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explain extended select * from t1 where a between '20' and '70';
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DELETE FROM mysql.column_stats;
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DROP TABLE t1;
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create schema world;
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use world;
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@ -150,6 +85,8 @@ ANALYZE TABLE Country, City, CountryLanguage persistent for all;
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SELECT column_name, min_value, max_value, hist_size, hist_type, histogram FROM mysql.column_stats;
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explain extended select * from Country where 'Code' between 'BBC' and 'GGG';
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analyze select * from Country where 'Code' between 'BBC' and 'GGG';
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explain extended select * from Country where 'Code' < 'BBC';
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analyze select * from Country where 'Code' < 'BBC';
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set histogram_type=@save_histogram_type;
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set histogram_size=@save_histogram_size;
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