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兼容性提升 #238

Merged
merged 17 commits into from
Apr 19, 2024
Merged

兼容性提升 #238

merged 17 commits into from
Apr 19, 2024

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wy1433
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@wy1433 wy1433 commented Apr 18, 2024 •
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New Features：

  • 兼容性：support datetime(n)，支持配置精度，默认0
  • 兼容性：新增函数find_in_set
  • 兼容性：兼容mysql索引语法
  • 兼容性：补齐时间类函数
  • 兼容性：补齐字符类函数
  • 兼容性：兼容mysql建表语法
  • 功能性： 新增FLAGS_max_select_region_count，用于控制手写慢sql抢占线上sql资源
  • 兼容性：支持change column语法
  • 功能性：默认字符集设为utf8
  • 兼容性：alter table时允许添加多列
  • 兼容性：index.short_name展示时保留大小写
  • 兼容性：支持drop index name on table语法

Bug Fixes：

  • SQL： 修复建表语句 commet = '1'出core的bug

Performance Improvements:

  • 调整不同range type的索引选择权重，EQ > IN > RANGE

lgqss
lgqss requested changes Apr 19, 2024
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src/meta_server/table_manager.cpp Show resolved Hide resolved
lgqss
lgqss requested changes Apr 19, 2024
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@lgqss lgqss merged commit 6c32c7b into baidu:master Apr 19, 2024
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@wy1433 @lgqss @cyz-2023