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  1. MariaDB Server
  2. MDEV-29186

Query cache makes virtual column function RAND() non-random

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    • Unexpected results

    Description

      10.3 02e85aea

      		 
      set global query_cache_type=1;
      		 
      set query_cache_type=1;
      		 
      create table t (a int, b float as (rand()));
      		 
      insert into t (a) values (1);
      		 
      select * from t;
      		 
      a	b
      		 
      1	0.181048
      		 
      select * from t;
      		 
      a	b
      		 
      1	0.181048
      		 
      set query_cache_type=0;
      		 
      select * from t;
      		 
      a	b
      		 
      1	0.437779

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-41567 Query cache *still* makes virtual column function RAND() non-random

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. MDEV-41568 SQL_CACHE overrides the cache prohibition for RAND() and similar functions

          • Major - Major loss of function.
          • Open

          New Feature - A new feature of the product, which has yet to be developed. MDEV-36100 Generate vector embeddings automatically on INSERT

          • Critical - Crashes, loss of data, severe memory leak.
          • In Progress

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              serg Sergei Golubchik
              elenst Elena Stepanova
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