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support partition can use the global stat when no partition stat and some case bugfix

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This commit is contained in:
wangt1xiuyi
2023-05-16 02:16:54 +00:00
committed by ob-robot
parent da78951e6d
commit 406639266a
12 changed files with 366 additions and 273 deletions
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32
src/sql/optimizer/ob_opt_est_cost.cpp
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@ -452,21 +452,19 @@ int ObOptEstCost::estimate_width_for_table(const OptTableMetas &table_metas,
column_expr->is_hidden_column()) {
// do nothing
} else {
int64_t avg_len = 0;
ObGlobalColumnStat stat;
if (OB_NOT_NULL(table_meta) && table_meta->use_opt_stat() &&
OB_FAIL(ctx.get_opt_stat_manager()->get_column_stat(ctx.get_session_info()->get_effective_tenant_id(),
table_meta->get_ref_table_id(),
table_meta->get_all_used_parts(),
column_expr->get_column_id(),
NULL,
NULL,
&avg_len,
NULL,
NULL,
&ctx.get_allocator()))) {
table_meta->get_all_used_global_parts(),
table_meta->get_rows(),
table_meta->get_scale_ratio(),
stat))) {
LOG_WARN("failed to get column stat", K(ret));
} else if (avg_len != 0) {
width += avg_len;
} else if (stat.avglen_val_ != 0) {
width += stat.avglen_val_;
} else {
width += get_estimate_width_from_type(column_expr->get_result_type());
}
@ -498,7 +496,7 @@ int ObOptEstCost::estimate_width_for_exprs(const OptTableMetas &table_metas,
// column expr
const ObColumnRefRawExpr* column_expr = static_cast<const ObColumnRefRawExpr*>(expr);
uint64_t table_id = column_expr->get_table_id();
int64_t avg_len = 0;
ObGlobalColumnStat stat;
const OptTableMeta *table_meta = table_metas.get_table_meta_by_table_id(table_id);
// base table column expr use statistic
if (OB_NOT_NULL(table_meta) && table_meta->use_opt_stat() &&
@ -506,15 +504,13 @@ int ObOptEstCost::estimate_width_for_exprs(const OptTableMetas &table_metas,
table_meta->get_ref_table_id(),
table_meta->get_all_used_parts(),
column_expr->get_column_id(),
NULL,
NULL,
&avg_len,
NULL,
NULL,
&ctx.get_allocator()))) {
table_meta->get_all_used_global_parts(),
table_meta->get_rows(),
table_meta->get_scale_ratio(),
stat))) {
LOG_WARN("failed to get column stat", K(ret));
} else if (avg_len != 0) {
width += avg_len;
} else if (stat.avglen_val_ != 0) {
width += stat.avglen_val_;
} else {
// non base table column expr use estimation
width += get_estimate_width_from_type(column_expr->get_result_type());