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[CP] disable dynamic sampling json/lob/gis column and fix set stat window attribute bug

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This commit is contained in:
wangt1xiuyi
2024-01-19 02:52:00 +00:00
committed by ob-robot
parent c21ad64304
commit 5e2d1aaf15
6 changed files with 141 additions and 131 deletions
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9
src/sql/optimizer/ob_dynamic_sampling.cpp
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@ -1378,6 +1378,15 @@ int ObDynamicSamplingUtils::check_ds_can_use_filter(const ObRawExpr *filter,
real_expr->get_expr_type() == T_OP_BOOL) {
no_use = true;
} else {/*do nothing*/}
} else if (filter->is_column_ref_expr()) {
//Dynamic Sampling of columns with LOB-related types is prohibited, as projecting such type columns is particularly slow.
//bug:
if (!ObColumnStatParam::is_valid_opt_col_type(filter->get_data_type())) {
no_use = true;
} else if (ob_obj_type_class(filter->get_data_type()) == ColumnTypeClass::ObTextTC &&
filter->get_data_type() != ObTinyTextType) {
no_use = true;
}
} else {/*do nothing*/}
if (OB_SUCC(ret) && !no_use) {
++ total_expr_cnt;