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[CP] use optimizer_features_enable system variable and optimizer_features_enable hint to control optimizer behaviors

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obdev
2024-02-09 14:31:41 +00:00
committed by ob-robot
parent d1a8a16e05
commit c5a5b18553
17 changed files with 153 additions and 108 deletions
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13
src/sql/resolver/dml/ob_hint.cpp
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@ -503,15 +503,18 @@ int ObGlobalHint::print_global_hint(PlanText &plan_text) const
// OPTIMIZER_FEATURES_ENABLE
if (OB_SUCC(ret) && (has_valid_opt_features_version())) {
int64_t cur_pos = 0;
const uint64_t version = has_valid_opt_features_version()
? opt_features_version_ : CURRENT_OUTLINE_ENABLE_VERSION;
// if enabled trace point outline valid check tp_no = 551 and opt_features_version_ is LASTED_COMPAT_VERSION,
// just print OPTIMIZER_FEATURES_ENABLE('') to avoid mysqltest changed repeatedly after upgrade LASTED_COMPAT_VERSION
const bool print_empty_str = (OB_SUCCESS != (OB_E(EventTable::EN_EXPLAIN_GENERATE_PLAN_WITH_OUTLINE) OB_SUCCESS)
&& LASTED_COMPAT_VERSION == opt_features_version_);
if (OB_FAIL(BUF_PRINTF("%s%s(\'", outline_indent, "OPTIMIZER_FEATURES_ENABLE"))) {
LOG_WARN("failed to print hint", K(ret));
} else if (OB_UNLIKELY(0 == (cur_pos = ObClusterVersion::print_version_str(buf + pos,
} else if (!print_empty_str &&
OB_UNLIKELY(0 == (cur_pos = ObClusterVersion::print_version_str(buf + pos,
buf_len - pos,
version)))) {
opt_features_version_)))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("failed to print version str", K(ret), K(version));
LOG_WARN("failed to print version str", K(ret), K(opt_features_version_));
} else if (OB_FALSE_IT(pos += cur_pos)) {
} else if (OB_FAIL(BUF_PRINTF("\')"))) {
}