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| author | Gleb Shchepa <gleb.shchepa@oracle.com> | 2012-12-05 16:53:33 +0400 |
|---|---|---|
| committer | Gleb Shchepa <gleb.shchepa@oracle.com> | 2012-12-05 16:53:33 +0400 |
| commit | 70cb820e2d0bd0a1d1970a312591e87edf3b38ae (patch) | |
| tree | daaa220f642d071a134e6759f5581dd0e7c08506 /sql/mdl.h | |
| parent | 195e731edb222ba778f1f6c194ab829af2419edd (diff) | |
| download | mariadb-git-70cb820e2d0bd0a1d1970a312591e87edf3b38ae.tar.gz | |
Bug #15948123: SERVER WORKS INCORRECT WITH LONG TABLE ALIASES
Code in MDL subsystem assumes that identifiers of objects can't
be longer than NAME_LEN characters. This assumption was broken
when one tried to construct MDL_key based on table alias, which
can have arbitrary length. Since MDL_key's (and MDL locks) are
not really used for table aliases this patch changes code to
not initialize MDL_key object for table list element representing
aliases.
Diffstat (limited to 'sql/mdl.h')
| -rw-r--r-- | sql/mdl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/mdl.h b/sql/mdl.h index d30d30ac2fa..6d29ad968c6 100644 --- a/sql/mdl.h +++ b/sql/mdl.h @@ -246,6 +246,8 @@ public: } void mdl_key_init(const MDL_key *rhs) { + DBUG_ASSERT(rhs->m_length <= NAME_LEN); + DBUG_ASSERT(rhs->m_db_name_length <= NAME_LEN); memcpy(m_ptr, rhs->m_ptr, rhs->m_length); m_length= rhs->m_length; m_db_name_length= rhs->m_db_name_length; |