在运行时建立了一套独立高效的 ABI(Application Binary Interface)体系:- 将使用频繁的变量放到固定的寄存器上(如 JSON buffer、结构体指针),尽量避免 memory load & store; - 自己维护变量栈(内存池),避免 ... return sp - ss + __builtin_ctzll(~(uint64_t)ms); } /* move to next block */ sp += 32; nb -= 32; } /* clear upper half to avoid AVX-SSE transition ...
binary --sandbox-home sandboxes/mysql_home```# 常规命令#### 1. 查看支持的 MySQL 版本```shell(base) [root@ip-10-0-0-22 msb_5_6_23]# dbdeployer downloads list```#### 2. 选择自动下载指定的版... Replication directory installed in $HOME/sandboxes/mysql_home/rsandbox_8_0_27run 'dbdeployer usage multiple' for basic instructions'```-n 是代表数据库的总的节点数,默认是3 ,也就是一主两从。如果需...
binary --sandbox-home sandboxes/mysql_home```# 常规命令#### 1. 查看支持的 MySQL 版本```shell(base) [root@ip-10-0-0-22 msb_5_6_23]# dbdeployer downloads list```#### 2. 选择自动下载指定的版本... Replication directory installed in $HOME/sandboxes/mysql_home/rsandbox_8_0_27run 'dbdeployer usage multiple' for basic instructions'```-n 是代表数据库的总的节点数,默认是3 ,也就是一主两从。如果需...
Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with th... but this program * is builtin from within the librdkafka source tree and thus differs. */include "librdkafka/rdkafka.h" /* for Kafka driver */static volatile sig_atomic_t run = 1;static rd_kafka_t *...
Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with th... but this program * is builtin from within the librdkafka source tree and thus differs. */include "librdkafka/rdkafka.h" /* for Kafka driver */static volatile sig_atomic_t run = 1;static rd_kafka_t *...
Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with th... but this program * is builtin from within the librdkafka source tree and thus differs. */include "librdkafka/rdkafka.h" /* for Kafka driver */static volatile sig_atomic_t run = 1;static rd_kafka_t *...
Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with th... but this program * is builtin from within the librdkafka source tree and thus differs. */include "librdkafka/rdkafka.h" /* for Kafka driver */static volatile sig_atomic_t run = 1;static rd_kafka_t *...
2.2 choose, when, otherwise若不想应用到所有的条件语句,而只想从中择其一项。针对这种情况,Dynamic SQL 提供了 choose 元素,类似编程语言中的 switch 语句。还是通过上方的例子,但这次改为提供了 “title” 就按 “title” 查找,提供了 “author” 就按 “author” 查找;若两者都没有提供,就返回所有符合条件的 BLOG(实际情况可能是由管理员按一定策略选出 BLOG 列表,而不是返回大量无意义的随机结果)。 XML SELECT * FROM BLO...