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MDEV-6513 deprecate engine_condition_pushdown value of the @@optimizer_switch

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* ignore the OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN bit
* issue a deprecation warning on 'engine_condition_pushdown=on'
* remove unused remains of the old pre-5.5 engine_condition_pushdown variable
This commit is contained in:
Sergei Golubchik
2014-08-25 23:13:37 +02:00
parent 686f102eb9
commit ab34aecff3
14 changed files with 26 additions and 342 deletions
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14
sql/handler.h
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@ -197,17 +197,11 @@ enum enum_alter_inplace_result {
#define HA_RECORD_MUST_BE_CLEAN_ON_WRITE (1ULL << 41)
/*
Table condition pushdown must be performed regardless of
'engine_condition_pushdown' setting.
This flag is aimed at storage engines that come with "special" predicates
that can only be evaluated inside the storage engine.
For example, when one does
select * from sphinx_table where query='{fulltext_query}'
then the "query=..." condition must be always pushed down into storage
engine.
This storage engine supports condition pushdown
*/
#define HA_MUST_USE_TABLE_CONDITION_PUSHDOWN (1ULL << 42)
#define HA_CAN_TABLE_CONDITION_PUSHDOWN (1ULL << 42)
/* old name for the same flag */
#define HA_MUST_USE_TABLE_CONDITION_PUSHDOWN HA_CAN_TABLE_CONDITION_PUSHDOWN
/**
The handler supports read before write removal optimization