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DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a INT,
b CHAR(8),
pk INT PRIMARY KEY,
KEY (a) KEY_BLOCK_SIZE=8
) ENGINE=rocksdb;
SHOW KEYS IN t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
t1 0 PRIMARY 1 pk A # NULL NULL LSMTREE
t1 1 a 1 a A # NULL NULL YES LSMTREE
DROP TABLE t1;
CREATE TABLE t1 (a INT,
b CHAR(8),
pk INT PRIMARY KEY,
KEY ind1(b ASC) KEY_BLOCK_SIZE=0
) ENGINE=rocksdb;
SHOW INDEX IN t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
t1 0 PRIMARY 1 pk A # NULL NULL LSMTREE
t1 1 ind1 1 b A # NULL NULL YES LSMTREE
DROP TABLE t1;
CREATE TABLE t1 (a INT,
b CHAR(8),
PRIMARY KEY ind2(b(1) DESC) KEY_BLOCK_SIZE=32768 COMMENT 'big key_block_size value'
) ENGINE=rocksdb;
SHOW INDEX IN t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
t1 0 PRIMARY 1 b A # 1 NULL LSMTREE big key_block_size value
DROP TABLE t1;
CREATE TABLE t1 (a INT,
b CHAR(8),
pk INT AUTO_INCREMENT PRIMARY KEY,
KEY a_b(a,b) KEY_BLOCK_SIZE=8192
) ENGINE=rocksdb;
SHOW INDEX IN t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
t1 0 PRIMARY 1 pk A # NULL NULL LSMTREE
t1 1 a_b 1 a A # NULL NULL YES LSMTREE
t1 1 a_b 2 b A # NULL NULL YES LSMTREE
DROP TABLE t1;
CREATE TABLE t1 (a INT,
b CHAR(8),
PRIMARY KEY (b)
) ENGINE=rocksdb;
INSERT INTO t1 (a,b) VALUES (100,'z');
ALTER TABLE t1 ADD KEY(a) KEY_BLOCK_SIZE 8192;
SHOW INDEX FROM t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
t1 0 PRIMARY 1 b A # NULL NULL LSMTREE
t1 1 a 1 a A # NULL NULL YES LSMTREE
DROP TABLE t1;
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