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[CP] adjust merge into partition prune constraint

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chimyue
2023-07-13 14:42:17 +00:00
committed by ob-robot
parent 59a7f93a3f
commit a61043f93b
9 changed files with 150 additions and 96 deletions
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29
src/sql/optimizer/ob_log_merge.cpp
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@ -364,16 +364,33 @@ bool ObLogMerge::is_delete_dml_info(const IndexDMLInfo *dml_info) const
int ObLogMerge::gen_location_constraint(void *ctx)
{
int ret = OB_SUCCESS;
// constraints for merge partition pruning
ObQueryCtx *query_ctx = NULL;
if (OB_ISNULL(get_stmt()) || OB_ISNULL(query_ctx = get_stmt()->get_query_ctx())) {
if (OB_ISNULL(get_plan()) || OB_ISNULL(get_stmt())
|| OB_ISNULL(query_ctx = get_stmt()->get_query_ctx())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected null", K(ret), K(get_stmt()), K(query_ctx));
} else if (OB_FAIL(append(query_ctx->all_equal_param_constraints_, get_equal_infos()))) {
LOG_WARN("append equal param info failed", K(ret));
LOG_WARN("unexpected null", K(ret), K(get_plan()), K(get_stmt()), K(query_ctx));
} else if (OB_FAIL(ObLogicalOperator::gen_location_constraint(ctx))) {
LOG_WARN("failed to gen location constraint", K(ret));
} else { /* do nothing */ }
} else {
// constraints for merge partition pruning
ObOptimizerContext &opt_ctx = get_plan()->get_optimizer_context();
const ObIArray<std::pair<ObRawExpr*, ObRawExpr*>> &equal_pairs = get_equal_pairs();
const PreCalcExprExpectResult expect_result = PreCalcExprExpectResult::PRE_CALC_RESULT_TRUE;
ObRawExpr *equal_expr = NULL;
for (int64_t i = 0; OB_SUCC(ret) && i < equal_pairs.count(); ++i) {
if (OB_FAIL(ObRawExprUtils::build_common_binary_op_expr(opt_ctx.get_expr_factory(),
T_OP_EQ,
equal_pairs.at(i).first,
equal_pairs.at(i).second,
equal_expr))) {
LOG_WARN("failed to build common binary_op_expr");
} else if (OB_FAIL(equal_expr->formalize(opt_ctx.get_session_info()))) {
LOG_WARN("failed to formalize expr", K(ret));
} else if (OB_FAIL(query_ctx->all_expr_constraints_.push_back(ObExprConstraint(equal_expr, expect_result)))) {
LOG_WARN("failed to push back expr constraints", K(ret));
}
}
}
return ret;
}