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Fix dblink bug when dblink sql contains outline

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This commit is contained in:
xianyu-w
2023-06-19 03:12:20 +00:00
committed by ob-robot
parent 0a734f9343
commit 13327b58d4
3 changed files with 8 additions and 27 deletions
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2
src/sql/resolver/dml/ob_sql_hint.cpp
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@ -668,7 +668,7 @@ int ObQueryHint::print_stmt_hint(PlanText &plan_text, const ObDMLStmt &stmt,
if (OB_FAIL(print_outline_data(plan_text))) {
LOG_WARN("failed to print outline data", K(ret));
}
} else if (!has_outline_data()) {
} else if (!has_outline_data() || OB_INVALID_ID != stmt.get_dblink_id()) {
// Not outline data, print current stmt hint here.
// If stmt is the first stmt can add hint, print global hint and hint with qb name.
// For query "select_1 union all select_2", root stmt is "union all" and the first stmt to print hint is select_1

6
src/sql/resolver/expr/ob_raw_expr_printer.cpp
View File

@ -808,10 +808,10 @@ int ObRawExprPrinter::print(ObOpRawExpr *expr)
}
case T_OP_BOOL:{
CK(1 == expr->get_param_count());
if (print_params_.for_dblink_) {
DATA_PRINTF("(case when (");
if (print_params_.for_dblink_ && lib::is_mysql_mode()) {
DATA_PRINTF("!!(");
PRINT_EXPR(expr->get_param_expr(0));
DATA_PRINTF(") then 1 else 0 end)");
DATA_PRINTF(")");
} else if (expr->has_flag(IS_INNER_ADDED_EXPR)) {
// ignore print inner added expr
PRINT_EXPR(expr->get_param_expr(0));