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141fedd890b6de22ac05a7d0f452e8caa90578c4
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vastdata-xyzr
141fedd890 合入PG补丁，从非扁平子查询中删除不必要的输出表达式。 
PG提交号：55d5b3c08279b487cfa44d4b6e6eea67a0af89e4
Remove unnecessary output expressions from unflattened subqueries.

If a sub-select-in-FROM gets flattened into the upper query, then we
naturally get rid of any output columns that are defined in the sub-select
text but not actually used in the upper query.  However, this doesn't
happen when it's not possible to flatten the subquery, for example because
it contains GROUP BY, LIMIT, etc.  Allowing the subquery to compute useless
output columns is often fairly harmless, but sometimes it has significant
performance cost: the unused output might be an expensive expression,
or it might be a Var from a relation that we could remove entirely (via
the join-removal logic) if only we realized that we didn't really need
that Var.  Situations like this are common when expanding views, so it
seems worth taking the trouble to detect and remove unused outputs.

Because the upper query's Var numbering for subquery references depends on
positions in the subquery targetlist, we don't want to renumber the items
we leave behind.  Instead, we can implement "removal" by replacing the
unwanted expressions with simple NULL constants.  This wastes a few cycles
at runtime, but not enough to justify more work in the planner.

以及补丁：a4c35ea1c2f05dd5b56739fcd0dc36a4870ea0c0
Improve parser's and planner's handling of set-returning functions.
补丁：9d4444a6fc011b7e2ca16386cf9f1c9f25c114e5
Preserve exposed type of subquery outputs when substituting NULLs.

关于 remove_unused_subquery_outputs 的修改
 2024-03-18 11:14:38 +08:00
opengauss_bot
12699d7129 !4879 修复xml_parse函数使用try/catch中的问题 
Merge pull request !4879 from cc_db_dev/fix_xml_ignoreerror
 2024-03-13 02:40:10 +00:00
opengauss_bot
496960f0c7 !4904 Fix compute_scalar_stats() for case that all values exceed WIDTH_THRESHOLD 
Merge pull request !4904 from xiyanziran/master-20240228
 2024-03-13 02:31:18 +00:00
opengauss_bot
79061eb8ed !4844 修复FreeTupleDesc函数中没有释放部分内存的问题 
Merge pull request !4844 from cc_db_dev/fix_leak_tupledesc
 2024-03-13 01:48:45 +00:00
opengauss_bot
4b039158d1 !4908 autoanalyze不及时 
Merge pull request !4908 from 姜岩/master
 2024-03-13 00:57:27 +00:00
opengauss_bot
98544ec6c2 !4793 修复: prepare 结合@变量 导致的计划缓存问题 
Merge pull request !4793 from chenbd/fix_mas_prepare
 2024-03-12 12:45:16 +00:00
opengauss_bot
cd7d5a047f !4954 解决双集群xlog读取失败的问题 
Merge pull request !4954 from Carl/master
 2024-03-12 12:43:44 +00:00
chenzhikai
9645fab5ff 解决双集群xlog读取失败的问题 2024-03-12 18:33:02 +08:00
opengauss_bot
7cf30496ce !4009 【I7XHXY】CREATE TABLE和ALTER TABLE唯一约束语法支持前缀键；同步前缀索引Bitmapscan结果集问题；同步LIKE条件与索引字符序问题 
Merge pull request !4009 from 李居东/unique_prefixkey
 2024-03-12 09:47:34 +00:00
opengauss_bot
daedfe9e2f !4736 解决interval分区表并发插入时自增重复范围分区的问题。（在消费无效消息后，本地缓存中relation的信息不是最新） 
Merge pull request !4736 from playrest/master-commit-1
 2024-03-12 09:20:37 +00:00
opengauss_bot
c87735024c !4948 修复：资源池化下不能使用select pg_control_checkpoint的问题 
Merge pull request !4948 from songlinxuan/master
 2024-03-12 07:34:07 +00:00
opengauss_bot
f71495520b !4950 新增：用于定位xlog生成时指针不一致的问题的log 
Merge pull request !4950 from songlinxuan/master
 2024-03-12 07:33:46 +00:00
muyulinzhong
bd3cdd3ea0 新增当生成xlog时缓冲区指针位置不一致的辅助log 2024-03-12 14:57:42 +08:00
opengauss_bot
750d188b51 !4945 【SS】server支持编译安装出包memcheck 
Merge pull request !4945 from 胡正超/asan
 2024-03-12 06:19:27 +00:00
muyulinzhong
e70c8948b6 修复：资源池化场景下不能使用pg_control_checkpoint得问题 2024-03-12 10:55:41 +08:00
li-judong
91dc05f384 1、CREATE TABLE和ALTER TABLE唯一约束语法支持前缀键； 
2、解决前缀键bitmapscan结果集问题；
3、b模式字符序前缀键适配like条件
4、修复like操作符字符序与索引键字符序不同时结果集问题
 2024-03-12 10:49:43 +08:00
opengauss_bot
3784b48746 !4944 添加忽略switchover命令场景日志打印 
Merge pull request !4944 from 刘展峰/log
 2024-03-12 01:10:25 +00:00
opengauss_bot
f2e5ada253 !4941 [bugfix] fix unfreed spq connection caused coredump while switchover. 
Merge pull request !4941 from 阙鸣健/spq_0130
 2024-03-11 12:58:20 +00:00
opengauss_bot
53ede526f9 !4947 【资源池化】【同步DMS点】修复dms_context_t未初始化问题 
Merge pull request !4947 from 陈超/master
 2024-03-11 12:57:30 +00:00
opengauss_bot
a62a81140c !4942 【资源池化】【optimize】【在线reform】避免业务线程在reform结束后，等待页面时间过长 
Merge pull request !4942 from 董宁/bugfix17_master
 2024-03-11 11:57:12 +00:00
opengauss_bot
7449427483 !4943 解决按需回放恢复阶段备机写xlog的core 
Merge pull request !4943 from Carl/master
 2024-03-11 11:40:01 +00:00
18305199258
950d968d50 【资源池化】【同步DMS点】修复dms_context_t未初始化问题 2024-03-11 19:19:42 +08:00
liuzhanfeng2
f48934c65f 添加忽略switchover命令场景日志打印 2024-03-11 16:46:56 +08:00
opengauss_bot
468853d438 !4937 按需回放适配dorado双集群读xlog目录 
Merge pull request !4937 from Carl/sdr
 2024-03-11 07:36:48 +00:00
chenzhikai
61d862ba88 解决按需回放恢复阶段备机写xlog的core 2024-03-11 15:35:59 +08:00
opengauss_bot
b38952c700 !4936 函数OidFunctionCallnColl增加can_ignore参数 
Merge pull request !4936 from 梅程/master
 2024-03-11 07:01:34 +00:00
Mijamind
061bc59daa [bugfix] fix unfreed spq connection caused coredump while switchover. 2024-03-11 11:06:09 +08:00
opengauss_bot
45d5f1a0ef !4932 Fix integer-overflow corner cases in substring() functions 
Merge pull request !4932 from 吴岳川/master
 2024-03-11 02:18:51 +00:00
chenzhikai
957e2df43d 按需回放适配dorado双集群读xlog目录 2024-03-11 10:01:39 +08:00
dongning12
85aeef1e75 【资源池化】【optimize】【在线reform】避免业务线程在reform结束后，等待页面时间过长 2024-03-09 15:32:31 +08:00
梅程
2b4b0ed600 OidFunctionCallnColl增加can_ignore参数 2024-03-08 16:47:52 +08:00
opengauss_bot
e23a234f89 !4845 向量数据库功能内核相关(pgvector插件依赖) 
Merge pull request !4845 from 大风歌/SupportPgvector
 2024-03-08 07:14:24 +00:00
opengauss_bot
66fd5f8347 !4925 修复：failover过程中，集群卡在starting状态，备1启动轮reform失败，应该退出，但是未退出 
Merge pull request !4925 from songlinxuan/master
 2024-03-08 06:38:33 +00:00
muyulinzhong
19045d93ad 【bugfix】修复集群reform失败有可能会卡在starting状态的bug 2024-03-08 14:11:02 +08:00
opengauss_bot
e3e462d059 !4931 endless loop in readrecord when failover 
Merge pull request !4931 from zhengxue/zx_master_dev
 2024-03-08 03:53:23 +00:00
opengauss_bot
3cf8391233 !4927 【资源池化】同步CBB点 
Merge pull request !4927 from 董宁/sync13
 2024-03-08 01:54:46 +00:00
opengauss_bot
1093728177 !4926 解决双集群page addr校验 
Merge pull request !4926 from Carl/sdr
 2024-03-07 06:39:49 +00:00
opengauss_bot
8d20e8364c !4928 避免从cbinvalidatepage的try段落返return 
Merge pull request !4928 from guozhe/bugfixcbinvalidatepage
 2024-03-07 06:38:08 +00:00
shirley_zhengx
027c925257 endless loop in readrecord when failover 2024-03-07 14:16:12 +08:00
wuyuechuan
4aec02ea72 Fix integer-overflow corner cases in substring() functions 2024-03-07 11:49:16 +08:00
大风歌
ad268de892 adjust file header description 2024-03-07 11:20:29 +08:00
Dylan916
1164035575 避免从CBInvalidPage函数中的try段落return 2024-03-06 16:58:20 +08:00
opengauss_bot
cdae0a6ce5 !4921 增加审计日志磁盘满告警日志 
Merge pull request !4921 from 张悦萌/audit_log
 2024-03-06 08:20:57 +00:00
chenzhikai
58e53a3214 解决双集群page addr校验 2024-03-06 16:11:25 +08:00
dongning12
975fe0cbc8 【资源池化】同步CBB点 2024-03-06 16:01:48 +08:00
z00848344
d22eab2717 增加审计日志磁盘满告警 2024-03-06 14:33:36 +08:00
大风歌
f087e090f6 check security function return value 2024-03-06 10:53:50 +08:00
opengauss_bot
0cd970a846 !4922 【资源池化】【bugfix】【在线reform增强】双集群中的备集群中不支持在线reform 
Merge pull request !4922 from 董宁/dev3_fix3
 2024-03-05 10:42:03 +00:00
opengauss_bot
8365321146 !4919 【bugfix】修复按需回放failover时，有概率出现g_dispatcher->restoreControlFile == NULL的问题 
Merge pull request !4919 from 周聪/bugfix_restoreControlFile=NULL
 2024-03-05 10:31:55 +00:00
opengauss_bot
5b92215b9b !4887 兼容B库下null值的分区问题 
Merge pull request !4887 from 吴岳川/master
 2024-03-05 08:46:38 +00:00