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[FEAT MERGE] implement mysql dblink and read consistency

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Co-authored-by: xianyu-w <707512433@qq.com>
Co-authored-by: sdc <njucssdc@gmail.com>
Co-authored-by: seuwebber <webber_code@163.com>
This commit is contained in:
cqliang1995
2023-05-09 18:32:03 +00:00
committed by ob-robot
parent 38b78ad442
commit 4108e781d4
132 changed files with 2726 additions and 818 deletions
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3
src/sql/resolver/dml/ob_hint.h
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@ -174,6 +174,8 @@ struct ObGlobalHint {
bool disable_cost_based_transform() const { return disable_cost_based_transform_; }
inline bool has_dbms_stats_hint() const { return has_dbms_stats_hint_; }
inline void set_dbms_stats() { has_dbms_stats_hint_ = true; }
bool get_flashback_read_tx_uncommitted() const { return flashback_read_tx_uncommitted_; }
void set_flashback_read_tx_uncommitted(bool v) { flashback_read_tx_uncommitted_ = v; }
bool has_append() const {
return (osg_hint_.flags_ & ObOptimizerStatisticsGatheringHint::OB_APPEND_HINT) ? true : false;
}
@ -261,6 +263,7 @@ struct ObGlobalHint {
common::ObSArray<ObDDLSchemaVersionHint> ob_ddl_schema_versions_;
ObOptimizerStatisticsGatheringHint osg_hint_;
bool has_dbms_stats_hint_;
bool flashback_read_tx_uncommitted_;
int64_t dynamic_sampling_;
};