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MDEV-17503 CREATE SEQUENCE failed with innodb_force_primary_key =1

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Fixed by adding table flag HA_WANTS_PRIMARY_KEY, which is like
HA_REQUIRE_PRIMARY_KEY but tells SQL upper layer that the storage engine
internally can handle tables without primary keys (for example for
sequences or trough user variables)
This commit is contained in:
Monty
2018-10-29 16:12:52 +02:00
parent 6a6cc8a653
commit d30124e844
6 changed files with 31 additions and 2 deletions
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3
sql/handler.h
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@ -301,6 +301,9 @@ enum enum_alter_inplace_result {
/* calling cmp_ref() on the engine is expensive */
#define HA_CMP_REF_IS_EXPENSIVE (1ULL << 54)
/* Engine wants primary keys for everything except sequences */
#define HA_WANTS_PRIMARY_KEY (1ULL << 55)
/* bits in index_flags(index_number) for what you can do with index */
#define HA_READ_NEXT 1 /* TODO really use this flag */
#define HA_READ_PREV 2 /* supports ::index_prev */