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authorAlexey Botchkov <holyfoot@askmonty.org>2022-07-16 16:54:03 +0400
committerAlexey Botchkov <holyfoot@askmonty.org>2022-07-17 01:10:43 +0400
commit8911823f65a6557ce66ea5f8aecd55b115a85606 (patch)
treeeeeeee73708c22dbf584ca1444be46321a670fa1 /sql/field.h
parent65cc89ed9eb9367a7e068286ddc9a896c478c012 (diff)
downloadmariadb-git-8911823f65a6557ce66ea5f8aecd55b115a85606.tar.gz
MDEV-26546 SIGSEGV's in spider_db_connect on SHOW TABLE and spider_db… …_mbase::connect (and SIGSEGV's in check_vcol_forward_refs and inline_mysql_mutex_lock)
Not the SPIDER issue - happens to INSERT DELAYED. the field::make_new_field does't copy the LONG_UNIQUE_HASH_FIELD flag to the new field. Though the Delayed_insert::get_local_table copies the field->vcol_info for this field. Ad a result the parse_vcol_defs doesn't create the expression for that column so the field->vcol_info->expr is NULL. Which leads to crash. Backported fix for this from 10.5 - the flagg added in the Delayed_insert::get_local_table. Another problem with the USING HASH key is thst the parse_vcol_defs modifies the table->keys content. Then the same parse_vcol_defs is called on the table copy that has keys already modified. Backported fix for that from 10.5 - key copying added tot the Delayed_insert::get_local_table. Finally - the created copy has to clear the expr_arena as this table is not in the thd->open_tables list so won't be cleared automatically.
Diffstat (limited to 'sql/field.h')
-rw-r--r--sql/field.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/field.h b/sql/field.h
index d31be2a96cc..7534a506edc 100644
--- a/sql/field.h
+++ b/sql/field.h
@@ -706,7 +706,7 @@ public:
enum imagetype { itRAW, itMBR};
utype unireg_check;
- const uint32 field_length; // Length of field
+ uint32 field_length; // Length of field
uint32 flags;
uint16 field_index; // field number in fields array
uchar null_bit; // Bit used to test null bit