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  1. MariaDB Server
  2. MDEV-17278

CURSOR FOR LOOP - ERROR: unexpected end of stream, read 0 bytes (SERVER CRASH)

Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Fixed
    • 10.3.9, 10.3(EOL)
    • 10.3.11
    • Stored routines
    • None
    • CentOS7

    Description

      The following code in a stored procedure produces the correct result when CALLed:

      	FOR rec IN (SELECT Orders.Order_ID, Customers.State FROM Orders join Customers using (Customer_ID) where State is not null) DO
      		set ans = concat(ans, '/', rec.Order_ID, '-', rec.State);
      	END FOR;
      

      However, if the field list is replaced by * it just crashes the server:

      	FOR rec IN (SELECT * FROM Orders join Customers using (Customer_ID) where State is not null) DO
      		set ans = concat(ans, '/', rec.Order_ID, '-', rec.State);
      	END FOR;
      

      with the message:

      ERROR: (conn=10) unexpected end of stream, read 0 bytes from 4 (socket was closed by server)
      

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            rdyas Robert Dyas created issue -
            alice Alice Sherepa made changes -
            Field Original Value New Value
            Assignee Alice Sherepa [ alice ]
            alice Alice Sherepa made changes -
            Affects Version/s 10.3 [ 22126 ]
            alice Alice Sherepa made changes -
            Fix Version/s 10.3 [ 22126 ]
            alice Alice Sherepa made changes -
            Status Open [ 1 ] Confirmed [ 10101 ]
            alice Alice Sherepa made changes -
            alice Alice Sherepa made changes -
            Assignee Alice Sherepa [ alice ] Alexander Barkov [ bar ]
            bar Alexander Barkov made changes -
            Priority Major [ 3 ] Critical [ 2 ]
            bar Alexander Barkov made changes -
            Status Confirmed [ 10101 ] In Progress [ 3 ]
            bar Alexander Barkov made changes -
            Assignee Alexander Barkov [ bar ] Oleksandr Byelkin [ sanja ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            sanja Oleksandr Byelkin made changes -
            Assignee Oleksandr Byelkin [ sanja ] Alexander Barkov [ bar ]
            Status In Review [ 10002 ] Stalled [ 10000 ]
            bar Alexander Barkov made changes -
            Fix Version/s 10.3.11 [ 23141 ]
            Fix Version/s 10.3 [ 22126 ]
            Resolution Fixed [ 1 ]
            Status Stalled [ 10000 ] Closed [ 6 ]
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 89737 ] MariaDB v4 [ 154975 ]

            People

              bar Alexander Barkov
              rdyas Robert Dyas
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              Dates

                Created:
                Updated:
                Resolved:

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