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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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14
src/sql/ob_sql_context.h
View File

@ -24,6 +24,7 @@
#include "sql/plan_cache/ob_plan_cache_util.h"
#include "observer/omt/ob_tenant_config_mgr.h"
#include "share/client_feedback/ob_feedback_partition_struct.h"
#include "sql/dblink/ob_dblink_utils.h"
namespace oceanbase
{
@ -374,6 +375,11 @@ public:
const share::schema::ObColumnSchemaV2 *&column_schema) const;
int get_link_column_schema(uint64_t table_id, uint64_t column_id,
const share::schema::ObColumnSchemaV2 *&column_schema) const;
int fetch_link_current_scn(uint64_t dblink_id, uint64_t tenant_id, ObSQLSessionInfo *session_info,
uint64_t &current_scn);
// get current scn from dblink. return OB_INVALID_ID if remote server not support current_scn
int get_link_current_scn(uint64_t dblink_id, uint64_t tenant_id, ObSQLSessionInfo *session_info,
uint64_t &current_scn);
public:
static TableItem *get_table_item_by_ref_id(const ObDMLStmt *stmt, uint64_t ref_table_id);
static bool is_link_table(const ObDMLStmt *stmt, uint64_t table_id);
@ -382,6 +388,8 @@ private:
common::ObArenaAllocator allocator_;
common::ObSEArray<const share::schema::ObTableSchema *, 1> table_schemas_;
uint64_t next_link_table_id_;
// key is dblink_id, value is current scn.
common::hash::ObHashMap<uint64_t, uint64_t> dblink_scn_;
};
struct ObBaselineKey
@ -564,7 +572,8 @@ public:
has_nested_sql_(false),
tz_info_(NULL),
res_map_rule_id_(common::OB_INVALID_ID),
res_map_rule_param_idx_(common::OB_INVALID_INDEX)
res_map_rule_param_idx_(common::OB_INVALID_INDEX),
root_stmt_(NULL)
{
}
TO_STRING_KV(N_PARAM_NUM, question_marks_count_,
@ -603,6 +612,7 @@ public:
tz_info_ = NULL;
res_map_rule_id_ = common::OB_INVALID_ID;
res_map_rule_param_idx_ = common::OB_INVALID_INDEX;
root_stmt_ = NULL;
}
int64_t get_new_stmt_id() { return stmt_count_++; }
@ -630,6 +640,7 @@ public:
void set_has_nested_sql(bool has_nested_sql) { has_nested_sql_ = has_nested_sql; }
void set_timezone_info(const common::ObTimeZoneInfo *tz_info) { tz_info_ = tz_info; }
const common::ObTimeZoneInfo *get_timezone_info() const { return tz_info_; }
public:
static const int64_t CALCULABLE_EXPR_NUM = 1;
typedef common::ObSEArray<ObHiddenColumnItem, CALCULABLE_EXPR_NUM, common::ModulePageAllocator, true> CalculableItems;
@ -676,6 +687,7 @@ public:
const common::ObTimeZoneInfo *tz_info_;
uint64_t res_map_rule_id_;
int64_t res_map_rule_param_idx_;
ObDMLStmt *root_stmt_;
};
} /* ns sql*/
} /* ns oceanbase */