摘要:
遇到问题: 在使用valgrind跟踪调试动态库时,遇到如下问题,不知道问题发生在代码哪里: ==11728== 1 errors in context 5 of 31: ==11728== Source and destination overlap in memcpy(0x4f35880, 0x 阅读全文
摘要:
select case fmt when '15 min' then (date_trunc('hour', val) + date_part('minute', val)::int / 15 * interval '15 min') when '30 min' then (date_trunc(' 阅读全文