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SQL: comment and check about ALTER in update_auto_increment()

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This commit is contained in:
Aleksey Midenkov
2017-07-24 16:22:59 +03:00
parent aa292666cc
commit 88454b3320
1 changed files with 2 additions and 1 deletions
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sql/handler.cc
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@ -3029,7 +3029,8 @@ int handler::update_auto_increment()
enum enum_check_fields save_count_cuted_fields; enum enum_check_fields save_count_cuted_fields;
DBUG_ENTER("handler::update_auto_increment"); DBUG_ENTER("handler::update_auto_increment");
if (table->versioned_by_sql()) // System Versioning: handle ALTER ADD COLUMN AUTO_INCREMENT
if (thd->lex->sql_command == SQLCOM_ALTER_TABLE && table->versioned_by_sql())
{ {
Field *end= table->vers_end_field(); Field *end= table->vers_end_field();
DBUG_ASSERT(end); DBUG_ASSERT(end);