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drop table if exists t1;
set session rocksdb_merge_buf_size=250;
set session rocksdb_merge_combine_read_size=1000;
CREATE TABLE t1 (i INT, j INT, PRIMARY KEY (i)) ENGINE = ROCKSDB;
ALTER TABLE t1 ADD INDEX kj(j), ALGORITHM=INPLACE;
ALTER TABLE t1 ADD INDEX kij(i,j), ALGORITHM=INPLACE;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) NOT NULL,
`j` int(11) DEFAULT NULL,
PRIMARY KEY (`i`),
KEY `kj` (`j`),
KEY `kij` (`i`,`j`)
) ENGINE=ROCKSDB DEFAULT CHARSET=latin1
DROP INDEX kj on t1;
DROP INDEX kij ON t1;
ALTER TABLE t1 ADD INDEX kj(j), ADD INDEX kij(i,j), ADD INDEX kji(j,i), ALGORITHM=INPLACE;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) NOT NULL,
`j` int(11) DEFAULT NULL,
PRIMARY KEY (`i`),
KEY `kj` (`j`),
KEY `kij` (`i`,`j`),
KEY `kji` (`j`,`i`)
) ENGINE=ROCKSDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=RocksDB;
ALTER TABLE t1 ADD INDEX kb(b) comment 'rev:cf1', ALGORITHM=INPLACE;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` int(11) DEFAULT NULL,
PRIMARY KEY (`a`),
KEY `kb` (`b`) COMMENT 'rev:cf1'
) ENGINE=ROCKSDB DEFAULT CHARSET=latin1
SELECT COUNT(*) FROM t1 FORCE INDEX(kb);
COUNT(*)
100
DROP TABLE t1;
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