partition_key_cache.test

# Test for per-partition key cache
# Tests are run with MyISAM since this feature
# is not supported by the default storage engine innodb

--source include/force_myisam_default.inc
--source include/have_myisam.inc

# Test of key cache with partitions
--source include/have_partition.inc

--disable_warnings
DROP TABLE IF EXISTS t1, t2, v, x;
--enable_warnings

--echo # Actual test of key caches
--echo # Verifing that reads/writes use the key cache correctly
SELECT @org_key_cache_buffer_size:= @@global.default.key_buffer_size;
--echo # Minimize default key cache (almost disabled).
SET @@global.default.key_buffer_size = 4096;
CREATE TABLE t1 (
  a INT,
  b INT,
  c INT NOT NULL,
  PRIMARY KEY (a),
  KEY `inx_b` (b))
PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a)
(PARTITION p0 VALUES LESS THAN (1167602410)
 (SUBPARTITION sp0,
  SUBPARTITION sp1),
 PARTITION p1 VALUES LESS THAN MAXVALUE
 (SUBPARTITION sp2,
  SUBPARTITION sp3));
CREATE TABLE t2 (
  a INT,
  b INT,
  c INT NOT NULL,
  PRIMARY KEY (a),
  KEY `inx_b` (b));
FLUSH TABLES;
FLUSH STATUS;

# Genereate 4096 rows. Idea from:
# http://datacharmer.blogspot.com/2007/12/data-from-nothing-solution-to-pop-quiz.html
SET @a:=1167602400;
CREATE VIEW v AS SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4;
CREATE VIEW x AS SELECT 1 FROM v,v a,v b;
# due to I_S performance, this was substituted with include files which
# uses SHOW STATUS
#DELIMITER |;
#CREATE PROCEDURE was_zero_reads()
#BEGIN
#  SELECT IF(VARIABLE_VALUE = 0,"Yes!","No!") as 'Was zero reads?'
#  FROM INFORMATION_SCHEMA.SESSION_STATUS
#  WHERE VARIABLE_NAME = 'KEY_READS';
#  FLUSH STATUS;
#END|
#DELIMITER ;|

FLUSH STATUS;
INSERT t1 SELECT @a, @a * (1 - ((@a % 2) * 2)) , 1167612400 - (@a:=@a+1) FROM x, x y;
--source include/check_key_req.inc
--echo # row distribution:
SELECT PARTITION_NAME, SUBPARTITION_NAME, TABLE_ROWS FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_SCHEMA='test' and TABLE_NAME='t1';
DROP VIEW x;
DROP VIEW v;
FLUSH TABLES;
FLUSH STATUS;
SELECT COUNT(b) FROM t1 WHERE b >= 0;
--source include/check_key_reads.inc
INSERT t2 SELECT a,b,c FROM t1;
--source include/check_key_req.inc
FLUSH STATUS;
SELECT COUNT(b) FROM t2 WHERE b >= 0;
--source include/check_key_reads.inc
FLUSH TABLES;
--echo # Setting the default key cache to 1M
SET GLOBAL key_buffer_size = 1024*1024;
FLUSH STATUS;
--echo # All these have to read the indexes
LOAD INDEX INTO CACHE t1 PARTITION (p1);
--source include/check_key_reads.inc
SELECT COUNT(b) FROM t1 WHERE b >= 0;
--source include/check_key_reads.inc
SELECT COUNT(b) FROM t2 WHERE b >= 0;
--source include/check_key_reads.inc
--echo # All these should be able to use the key cache
SELECT COUNT(b) FROM t1 WHERE b >= 0;
--source include/check_key_reads.inc
SELECT COUNT(b) FROM t2 WHERE b >= 0;
--source include/check_key_reads.inc
FLUSH TABLES;
LOAD INDEX INTO CACHE t1 PARTITION (p1,p0);
--source include/check_key_reads.inc
--echo # should not be zero
SELECT COUNT(b) FROM t1 WHERE b >= 0;
--source include/check_key_reads.inc
LOAD INDEX INTO CACHE t2;
--source include/check_key_reads.inc
--echo # should not be zero
SELECT COUNT(b) FROM t2 WHERE b >= 0;
--source include/check_key_reads.inc
FLUSH TABLES;
LOAD INDEX INTO CACHE t1 PARTITION (p1,p0) IGNORE LEAVES;
--source include/check_key_reads.inc
--echo # should not be zero
SELECT COUNT(b) FROM t1 WHERE b >= 0;
--source include/check_key_reads.inc
LOAD INDEX INTO CACHE t2 IGNORE LEAVES;
--source include/check_key_reads.inc
--echo # should not be zero
SELECT COUNT(b) FROM t2 WHERE b >= 0;
--source include/check_key_reads.inc
TRUNCATE TABLE t2;
INSERT t2 SELECT a,b,c FROM t1;
--source include/check_key_req.inc
DROP TABLE t1,t2;

SET GLOBAL hot_cache.key_buffer_size = 1024*1024;
SET GLOBAL warm_cache.key_buffer_size = 1024*1024;
SET @@global.cold_cache.key_buffer_size = 1024*1024;
SELECT @@global.default.key_buffer_size a, @@global.default.key_cache_block_size b, @@global.default.key_cache_age_threshold c, @@global.default.key_cache_division_limit d;
SELECT @@global.hot_cache.key_buffer_size a, @@global.hot_cache.key_cache_block_size b, @@global.hot_cache.key_cache_age_threshold c, @@global.hot_cache.key_cache_division_limit d;
SELECT @@global.warm_cache.key_buffer_size a, @@global.warm_cache.key_cache_block_size b, @@global.warm_cache.key_cache_age_threshold c, @@global.warm_cache.key_cache_division_limit d;
SELECT @@global.cold_cache.key_buffer_size a, @@global.cold_cache.key_cache_block_size b, @@global.cold_cache.key_cache_age_threshold c, @@global.cold_cache.key_cache_division_limit d;
CREATE TABLE t1 (
  a INT,
  b VARCHAR(257),
  c INT NOT NULL,
  PRIMARY KEY (a),
  KEY `inx_b` (b),
  KEY `inx_c`(c))
PARTITION BY RANGE (a)
SUBPARTITION BY HASH (a)
(PARTITION p0 VALUES LESS THAN (10)
 (SUBPARTITION sp0,
  SUBPARTITION sp1),
 PARTITION p1 VALUES LESS THAN MAXVALUE
 (SUBPARTITION sp2,
  SUBPARTITION sp3));
CREATE TABLE t2 (
  a INT,
  b VARCHAR(257),
  c INT NOT NULL,
  PRIMARY KEY (a),
  KEY `inx_b` (b),
  KEY `inx_c`(c));
SET @a:=1167602400;
# Genereate 4096 rows. Idea from:
# http://datacharmer.blogspot.com/2007/12/data-from-nothing-solution-to-pop-quiz.html
CREATE VIEW v AS SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4;
CREATE VIEW x AS SELECT 1 FROM v,v a,v b;
INSERT t1 SELECT @a, CONCAT('X_', @a, ' MySQL'), 1167612400 - (@a:=@a+1) FROM x, x a;
DROP VIEW x;
DROP VIEW v;
INSERT t2 SELECT a, b, c FROM t1;
SELECT COUNT(*) FROM t1;
SELECT COUNT(*) FROM t2;
FLUSH TABLES;

--echo # Restrict partitioned commands to partitioned tables only
CACHE INDEX t2 PARTITION (p0) KEY (`inx_b`) IN hot_cache;
CACHE INDEX t2 PARTITION (p0,`p1`) INDEX (`PRIMARY`) IN hot_cache;
CACHE INDEX t2 PARTITION (`p1`) INDEX (`PRIMARY`,`inx_b`) IN hot_cache;
CACHE INDEX t2 PARTITION (ALL) KEY (`inx_b`,`PRIMARY`) IN hot_cache;
--echo # Basic key cache testing
--echo # The manual correctly says: "The syntax of CACHE INDEX enables you to
--echo # specify that only particular indexes from a table should be assigned
--echo # to the cache. The current implementation assigns all the table's
--echo # indexes to the cache, so there is no reason to specify anything
--echo # other than the table name."
--echo # So the most of the test only tests the syntax 
CACHE INDEX t2 INDEX (`inx_b`) IN hot_cache;
CACHE INDEX t2 KEY (`PRIMARY`) IN warm_cache;
CACHE INDEX t2 KEY (`PRIMARY`,`inx_b`) IN cold_cache;
CACHE INDEX t2 INDEX (inx_b,`PRIMARY`) IN default;
CACHE INDEX t1 PARTITION (p0) KEY (`inx_b`) IN cold_cache;
--error ER_PARSE_ERROR
CACHE INDEX t1 PARTITIONS (p0) KEY (`inx_b`) IN cold_cache;
--echo # only one table at a time if specifying partitions
--error ER_PARSE_ERROR
CACHE INDEX t1,t2 PARTITION (p0) KEY (`inx_b`) IN cold_cache;
CACHE INDEX t1 PARTITION (`p0`,p1) INDEX (`PRIMARY`) IN warm_cache;
CACHE INDEX t1 PARTITION (`p1`) INDEX (`PRIMARY`,inx_b) IN hot_cache;
CACHE INDEX t1 PARTITION (ALL) KEY (`inx_b`,`PRIMARY`) IN default;
CACHE INDEX t1 PARTITION (ALL) IN hot_cache;
CACHE INDEX t1 INDEX (`inx_b`) IN default;
CACHE INDEX t1 KEY (`PRIMARY`) IN hot_cache;
CACHE INDEX t1 KEY (`PRIMARY`,`inx_b`) IN warm_cache;
CACHE INDEX t1 INDEX (`inx_b`,`PRIMARY`) IN cold_cache;
CACHE INDEX t1 IN hot_cache;
--echo # Test of non existent key cache:
--error ER_UNKNOWN_KEY_CACHE
CACHE INDEX t1 IN non_existent_key_cache;
--echo # Basic testing of LOAD INDEX
LOAD INDEX INTO CACHE t2;
--echo # PRIMARY and secondary keys have different block sizes
LOAD INDEX INTO CACHE t2 ignore leaves;
--echo # Must have INDEX or KEY before the index list
--error ER_PARSE_ERROR
LOAD INDEX INTO CACHE t2 (`PRIMARY`);

--echo # Test of IGNORE LEAVES
LOAD INDEX INTO CACHE t2 INDEX (`PRIMARY`);
LOAD INDEX INTO CACHE t2 KEY (`PRIMARY`,`inx_b`) IGNORE LEAVES;
CACHE INDEX t2 IN warm_cache;
CACHE INDEX t1 IN cold_cache;
LOAD INDEX INTO CACHE t2 KEY (`PRIMARY`) IGNORE LEAVES;
CACHE INDEX t2 INDEX (`inx_b`, `inx_c`) IN hot_cache;
LOAD INDEX INTO CACHE t2 KEY (`inx_b`, `inx_c`) IGNORE LEAVES;
CACHE INDEX t2 IN warm_cache;
CACHE INDEX t2 INDEX (`PRIMARY`, `inx_c`) IN hot_cache;
LOAD INDEX INTO CACHE t2 KEY (`PRIMARY`,`inx_c`) IGNORE LEAVES;
CACHE INDEX t2 INDEX (`inx_b`,`PRIMARY`) IN default;
LOAD INDEX INTO CACHE t2 KEY (`PRIMARY`,`inx_b`);
CACHE INDEX t2 IN default;
LOAD INDEX INTO CACHE t2 IGNORE LEAVES;

LOAD INDEX INTO CACHE t2 PARTITION (p1) INDEX (`PRIMARY`);
LOAD INDEX INTO CACHE t1, t2;
--echo # only one table at a time if specifying partitions
--error ER_PARSE_ERROR
LOAD INDEX INTO CACHE t1 PARTITION (p0), t2;
LOAD INDEX INTO CACHE t1 IGNORE LEAVES;
LOAD INDEX INTO CACHE t1 INDEX (`PRIMARY`);
LOAD INDEX INTO CACHE t1 INDEX (`PRIMARY`,`inx_b`) IGNORE LEAVES;
LOAD INDEX INTO CACHE t1 INDEX (`inx_b`) IGNORE LEAVES;
LOAD INDEX INTO CACHE t1 INDEX (`PRIMARY`) IGNORE LEAVES;
LOAD INDEX INTO CACHE t1 INDEX (`PRIMARY`,`inx_b`);
LOAD INDEX INTO CACHE t1 PARTITION (p1) INDEX (`PRIMARY`);
LOAD INDEX INTO CACHE t1 PARTITION (`p1`,p0) KEY (`PRIMARY`) IGNORE LEAVES;
LOAD INDEX INTO CACHE t1 PARTITION (ALL);
--error ER_PARSE_ERROR
LOAD INDEX INTO CACHE t1 PARTITIONS ALL;
LOAD INDEX INTO CACHE t1 PARTITION (p1,`p0`) IGNORE LEAVES;
DROP INDEX `inx_b` on t1;
DROP INDEX `inx_b` on t2;
CACHE INDEX t2 PARTITION (p0) KEY (`inx_b`) IN hot_cache;
CACHE INDEX t2 INDEX (`inx_b`) IN hot_cache;
CACHE INDEX t1 PARTITION (p0) KEY (`inx_b`) IN hot_cache;
CACHE INDEX t1 INDEX (`inx_b`) IN hot_cache;
DROP TABLE t1,t2;

--echo #
--echo # Bug#12361113: crash when load index into cache
--echo #
--echo # Note that this creates an empty disabled key cache!
SET GLOBAL key_cache_none.key_cache_block_size = 1024;
CREATE TABLE t1 (a INT, b INTEGER NOT NULL, KEY (b) )
ENGINE = MYISAM
PARTITION BY HASH(a) PARTITIONS 2;
INSERT INTO t1 VALUES (1, 1);
--error ER_UNKNOWN_KEY_CACHE
CACHE INDEX t1 IN key_cache_none;
--error ER_UNKNOWN_KEY_CACHE
CACHE INDEX t1 PARTITION (p0) IN key_cache_none;
--error ER_UNKNOWN_KEY_CACHE
CACHE INDEX t1 PARTITION (p1) IN key_cache_none;
--error ER_UNKNOWN_KEY_CACHE
CACHE INDEX t1 PARTITION (p0) KEY (`b`) IN key_cache_none;
--error ER_UNKNOWN_KEY_CACHE
CACHE INDEX t1 PARTITION (p1) KEY (`b`) IN key_cache_none;
--echo # The bug crashed the server at LOAD INDEX below. Now it will succeed
--echo # since the default cache is used due to CACHE INDEX failed for
--echo # key_cache_none.
LOAD INDEX INTO CACHE t1;
DROP TABLE t1;


--echo # Clean up
SET GLOBAL hot_cache.key_buffer_size = 0;
SET GLOBAL warm_cache.key_buffer_size = 0;
SET @@global.cold_cache.key_buffer_size = 0;
SELECT @@global.default.key_buffer_size a, @@global.default.key_cache_block_size b, @@global.default.key_cache_age_threshold c, @@global.default.key_cache_division_limit d;
SELECT @@global.hot_cache.key_buffer_size a, @@global.hot_cache.key_cache_block_size b, @@global.hot_cache.key_cache_age_threshold c, @@global.hot_cache.key_cache_division_limit d;
SELECT @@global.warm_cache.key_buffer_size a, @@global.warm_cache.key_cache_block_size b, @@global.warm_cache.key_cache_age_threshold c, @@global.warm_cache.key_cache_division_limit d;
SELECT @@global.cold_cache.key_buffer_size a, @@global.cold_cache.key_cache_block_size b, @@global.cold_cache.key_cache_age_threshold c, @@global.cold_cache.key_cache_division_limit d;
--disable_warnings
SET @@global.default.key_buffer_size = @org_key_cache_buffer_size;
--enable_warnings