When it is 3, the data file contains metadata and token data checksum, and supports multiple hash algorithms. TiFlash logger. �→ count Modified The default value is changed to 10. TiFlash status. �→ metrics_port 0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 3.2.2 Steps parameters to encrypt data during backup: • --crypter.method: Encryption algorithm. Supports three algorithms aes128-ctr/ �→ aes192-ctr/aes256-ctr. The default value is plaintext and indicates no encryp-

0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 3.2.2 Steps which uses the inner join to join tables. 4.7.2.3 Join related algorithms 443 TiDB supports the following general table join algorithms. • Index Join • Hash Join • Merge Join The optimizer selects ON b.id = r.book_id GROUP BY b.id ORDER BY b.published_at DESC LIMIT 10; Hints related to join algorithms: • MERGE_JOIN(t1_name [, tl_name …]) • INL_JOIN(t1_name [, tl_name …]) • INL_HASH_JOIN(t1_name

0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 126 3.2 which uses the inner join to join tables. 4.7.2.3 Join related algorithms 438 TiDB supports the following general table join algorithms. • Index Join • Hash Join • Merge Join The optimizer selects ON b.id = r.book_id GROUP BY b.id ORDER BY b.published_at DESC LIMIT 10; Hints related to join algorithms: • MERGE_JOIN(t1_name [, tl_name …]) • INL_JOIN(t1_name [, tl_name …]) • INL_HASH_JOIN(t1_name

the overhead of network transmission #7084 @solotzg The TiFlash MPP mode supports multiple Join algorithms. Before v7.1.0, TiDB de- termines whether the MPP mode uses the Broadcast Hash Join algorithm based time), TiDB automatically estimates the threshold of network transmission by 38 different Join algorithms, and then chooses the algorithm with the smallest overhead overall, thus reducing network traffic 0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 118 3.2

0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 3.2.2 Steps parameters to encrypt data during backup: • --crypter.method: Encryption algorithm. Supports three algorithms aes128-ctr/ �→ aes192-ctr/aes256-ctr. The default value is plaintext and indicates no encryp- upstream MPP tasks. This exchange type is often used for Hash Aggregation and Shuffle Hash Join algorithms. • Broadcast: The ExchangeSender operator distributes data to upstream MPP tasks through broadcast

0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 3.2.2 Steps which uses the inner join to join tables. 4.7.2.3 Join related algorithms 408 TiDB supports the following general table join algorithms. • Index Join • Hash Join • Merge Join The optimizer selects ON b.id = r.book_id GROUP BY b.id ORDER BY b.published_at DESC LIMIT 10; Hints related to join algorithms: • MERGE_JOIN(t1_name [, tl_name …]) • INL_JOIN(t1_name [, tl_name …]) • INL_HASH_JOIN(t1_name

0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 3.2.2 Steps which uses the inner join to join tables. 4.7.2.3 Join related algorithms 421 TiDB supports the following general table join algorithms. • Index Join • Hash Join • Merge Join The optimizer selects ON b.id = r.book_id GROUP BY b.id ORDER BY b.published_at DESC LIMIT 10; Hints related to join algorithms: • MERGE_JOIN(t1_name [, tl_name …]) • INL_JOIN(t1_name [, tl_name …]) • INL_HASH_JOIN(t1_name

0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 3.2.2 Steps which uses the inner join to join tables. 4.7.2.3 Join related algorithms 414 TiDB supports the following general table join algorithms. • Index Join • Hash Join • Merge Join The optimizer selects ON b.id = r.book_id GROUP BY b.id ORDER BY b.published_at DESC LIMIT 10; Hints related to join algorithms: • MERGE_JOIN(t1_name [, tl_name …]) • INL_JOIN(t1_name [, tl_name …]) • INL_HASH_JOIN(t1_name

upstream MPP tasks. This exchange type is often used for Hash Aggregation and Shuffle Hash Join algorithms. • Broadcast: The ExchangeSender operator distributes data to upstream MPP tasks through broadcast is also often applied to join operations. The MPP mode in TiDB supports the following two join algorithms: • Shuffle Hash Join: Shuffle the data input from the join operation using the HashParti- tion with the conditions for using the index nested loop join algorithm. The difference between the two algorithms is that INL_JOIN creates a hash table on the joined inner table, but INL_HASH_JOIN creates a hash

0, which allows data exchange between nodes and provides high-performance, high-throughput SQL algorithms. In the MPP mode, the run time of the analytic queries can be significantly reduced. 3.2.2 Steps upstream MPP tasks. This exchange type is often used for Hash Aggregation and Shuffle Hash Join algorithms. • Broadcast: The ExchangeSender operator distributes data to upstream MPP tasks through broadcast is also often applied to join operations. The MPP mode in TiDB supports the following two join algorithms: • Shuffle Hash Join: Shuffle the data input from the join operation using the HashParti- tion