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adjust allocate window function operator, enhance pq_distribute_window hint

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chimyue
2023-07-19 03:12:22 +00:00
committed by ob-robot
parent 9a244755cd
commit 32636e05c4
20 changed files with 2204 additions and 1204 deletions
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28
src/sql/optimizer/ob_explain_log_plan.cpp
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@ -143,15 +143,10 @@ int ObExplainLogPlan::check_explain_generate_plan_with_outline(ObLogPlan *real_p
} else if (0 == sql_ctx->first_plan_hash_) { /* generate plan first time */
void *tmp_ptr = NULL;
sql_ctx->first_outline_data_.reset();
bool has_win_func = false;
if (OB_UNLIKELY(0 == real_plan->get_signature()) || 0 < sql_ctx->retry_times_) {
/* do nothing */
} else if (OB_SUCC(OB_E(EventTable::EN_EXPLAIN_GENERATE_PLAN_WITH_OUTLINE) OB_SUCCESS)) {
/* do nothing */
} else if (OB_FAIL(check_has_win_func(explain_stmt->get_explain_query_stmt(), has_win_func))) {
LOG_WARN("failed to check has window function", K(ret));
} else if (has_win_func) {
/* outline is usually invalid for plan contain window functions, remove this after some hint is added. */
} else if (OB_UNLIKELY(NULL == (tmp_ptr = get_optimizer_context().get_allocator().alloc(OB_MAX_SQL_LENGTH)))) {
/* allocator in optimizer context is from ObResultSet */
ret = OB_ALLOCATE_MEMORY_FAILED;
@ -198,26 +193,3 @@ int ObExplainLogPlan::check_explain_generate_plan_with_outline(ObLogPlan *real_p
}
return ret;
}
int ObExplainLogPlan::check_has_win_func(const ObDMLStmt *stmt, bool &has_win_func)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(stmt)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("stmt is null", K(ret), K(stmt));
} else if (stmt->is_select_stmt() && static_cast<const ObSelectStmt*>(stmt)->has_window_function()) {
has_win_func = true;
} else {
ObSEArray<ObSelectStmt*, 8> child_stmts;
if (OB_FAIL(stmt->get_child_stmts(child_stmts))) {
LOG_WARN("get child stmt failed", K(ret));
}
for (int64_t i = 0; !has_win_func && OB_SUCC(ret) && i < child_stmts.count(); ++i) {
if (OB_FAIL(SMART_CALL(check_has_win_func(child_stmts.at(i), has_win_func)))) {
LOG_WARN("failed to check has window function", K(ret));
}
}
}
return ret;
}