Pick some pr to branch 21 #42279 #44164#44369
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yiguolei merged 3 commits intoapache:branch-2.1from Nov 22, 2024
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…sure the same test code in different version (apache#42279) Auto calc the value of sync_cbo_rewrite variable to make sure the same test code in different version. Because the query rewrite by mv code is a little different from 2.1 to 3.0 and master. But should keep same regression test code in different version. So add the methoed `enable_sync_mv_cost_based_rewrite` to get `enable_sync_mv_cost_based_rewrite` session variable, then decide to regression test logic by the variable auto.
…zed view (apache#44164) Problem Summary: When materialized view is rewritten, it would use the mv metadata. Should try to get read lock before use these metadata. or it would cause error. Such as mv def is as following CREATE MATERIALIZED VIEW mv1 BUILD IMMEDIATE REFRESH COMPLETE ON MANUAL DISTRIBUTED BY RANDOM BUCKETS 2 PROPERTIES ('replication_num' = '1') AS select o_orderdate, o_shippriority, o_comment, o.o_code as o_o_code, l_orderkey, l_partkey, l.o_code as l_o_code from orders_same_col o left join lineitem_same_col l on l_orderkey = o_orderkey left join partsupp on ps_partkey = l_partkey and l_suppkey = ps_suppkey; When handling transparent rewriting, a MV scan plan is used for the transparent rewrite. During the initialization of the scan plan, the partitions of the table are retrieved, so it is necessary to attempt to acquire a read lock on the table during initialization. If the read lock is not acquired, subsequent operations may add or delete partitions, and in the later processing of table partitions, calling get Partition may not retrieve the corresponding partition, leading to data errors.
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seawinde
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What problem does this PR solve?
3a5c0fd
#42279
7aec6ff
#44164
Issue Number: close #xxx
Related PR: #xxx
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