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[FEAT MERGE]4_2_sql_feature

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Co-authored-by: yinyj17 <yinyijun92@gmail.com>
Co-authored-by: xianyu-w <707512433@qq.com>
Co-authored-by: jingtaoye35 <1255153887@qq.com>
This commit is contained in:
zzg19950727
2023-04-28 11:12:11 +00:00
committed by ob-robot
parent 3bf92459f1
commit 3cada22bdc
161 changed files with 16883 additions and 4730 deletions
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4
src/sql/optimizer/ob_optimizer.cpp
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@ -627,6 +627,7 @@ int ObOptimizer::init_env_info(ObDMLStmt &stmt)
int64_t max_table_hint = 1;
ObDMLStmt *target_stmt = &stmt;
ObSQLSessionInfo *session = ctx_.get_session_info();
bool force_serial_set_order = false;
int64_t link_stmt_count = 0;
if (OB_ISNULL(target_stmt) || OB_ISNULL(session)) {
ret = OB_ERR_UNEXPECTED;
@ -651,11 +652,14 @@ int ObOptimizer::init_env_info(ObDMLStmt &stmt)
session_enable_parallel,
session_force_parallel_dop))) {
LOG_WARN("failed to get session parallel info", K(ret));
} else if (OB_FAIL(session->is_serial_set_order_forced(force_serial_set_order, lib::is_oracle_mode()))) {
LOG_WARN("fail to get force_serial_set_order", K(ret));
} else if (OB_FAIL(check_force_default_stat())) {
LOG_WARN("failed to check force default stat", K(ret));
} else if (OB_FAIL(calc_link_stmt_count(*target_stmt, link_stmt_count))) {
LOG_WARN("calc link stmt count failed", K(ret));
} else {
ctx_.set_serial_set_order(force_serial_set_order);
ctx_.set_has_multiple_link_stmt(link_stmt_count > 1);
parallel = ctx_.get_global_hint().get_parallel_hint();
if (parallel <= 0) {