[MXS-7653] regexfilter breaks prepared statements if they match - Jira

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Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 23.02.19, 23.08.15, 24.02.11, 25.01.8, 25.10.4
Fix Version/s: 23.02.20, 23.08.16, 24.02.12, 25.01.9, 25.10.5
Component/s: regexfilter
Labels:
None

Bug Category:
Can result in unexpected behaviour
Release Note Summary:
Fixed bug where the regexfilter replaced a COM_STMT_PREPARE with a COM_QUERY causing the client to disconnect due to the wrong type of response being generated.

Description

Sending a prepared statement that is replaced by the regexfilter causes the command type to be changed from a COM_STMT_PREPARE to COM_QUERY which returns the result immediately instead of preparing it. Since the result is unexpected, drivers fail to prepare and some end up breaking completely.

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Assignee:: markus makela

Reporter:: markus makela

Votes:: 0 Vote for this issue

Watchers:: 1 Start watching this issue

Dates

Created:: 2026-10-20 06:49

Updated:: 2026-10-26 08:01

Resolved:: 2026-10-26 08:01

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