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authorVarun Gupta <varun.gupta@mariadb.com>2019-04-11 13:05:01 +0530
committerVarun Gupta <varun.gupta@mariadb.com>2019-04-11 13:05:01 +0530
commit409dddf6958736d65ee77aa9b469f8b807da3bb1 (patch)
tree8f411703fcbf16b410d6c2922e3e1fa674897709 /sql/sql_statistics.cc
parent812ac2bb857877efc6973e275353ecdfcd8aeb35 (diff)
downloadmariadb-git-409dddf6958736d65ee77aa9b469f8b807da3bb1.tar.gz
MDEV-18300: ASAN error in Field_blob::get_key_image upon UPDATE with subquery
For single table updates and multi-table updates , engine independent statistics were not being read even if the statistics were collected. Fixed it, so when the optimizer_use_condition_selectivity > 2 then we would read the available statistics for update queries.
Diffstat (limited to 'sql/sql_statistics.cc')
-rw-r--r--sql/sql_statistics.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/sql/sql_statistics.cc b/sql/sql_statistics.cc
index f4dcafdb7c3..d3a2094e272 100644
--- a/sql/sql_statistics.cc
+++ b/sql/sql_statistics.cc
@@ -4071,6 +4071,7 @@ bool is_eits_usable(Field *field)
partition list of a table. We assume the selecticivity for
such columns would be handled during partition pruning.
*/
+ DBUG_ASSERT(field->table->stats_is_read);
Column_statistics* col_stats= field->read_stats;
return col_stats && !col_stats->no_stat_values_provided() && //(1)
field->type() != MYSQL_TYPE_GEOMETRY && //(2)