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add placeholder for __all_virtual_tenant_parameter

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This commit is contained in:
obdev
2023-04-27 08:41:13 +00:00
committed by ob-robot
parent 7e1a48d9dc
commit d8c632c87f
14 changed files with 72 additions and 116 deletions
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36
src/sql/resolver/dml/ob_select_stmt.cpp
View File

@ -1197,3 +1197,39 @@ bool ObSelectStmt::has_hidden_rowid() const {
}
return res;
}
int ObSelectStmt::get_pure_set_exprs(ObIArray<ObRawExpr*> &pure_set_exprs) const
{
int ret = OB_SUCCESS;
pure_set_exprs.reuse();
if (is_set_stmt()) {
ObRawExpr *select_expr = NULL;
ObRawExpr *set_op_expr = NULL;
for (int64_t i = 0; OB_SUCC(ret) && i < get_select_item_size(); ++i) {
if (OB_ISNULL(select_expr = get_select_item(i).expr_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret), K(i));
} else if (!select_expr->has_flag(CNT_SET_OP)) {
/* do nothing, for recursive union all, exists search/cycle pseudo columns*/
} else if (OB_ISNULL(set_op_expr = get_pure_set_expr(select_expr))
|| OB_UNLIKELY(!set_op_expr->is_set_op_expr())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected expr", K(ret), K(i), K(*select_expr));
} else if (OB_FAIL(pure_set_exprs.push_back(set_op_expr))) {
LOG_WARN("failed to push back expr", K(ret));
}
}
}
return ret;
}
// cast sys functions above set op expr can be:
// T_FUN_SYS_CAST/T_FUN_SYS_RAWTOHEX/T_FUN_SYS_TO_NCHAR/T_FUN_SYS_TO_CHAR
// use this function to get set op expr from expr child recursively
ObRawExpr* ObSelectStmt::get_pure_set_expr(ObRawExpr *expr)
{
while (OB_NOT_NULL(expr) && !expr->is_set_op_expr() && 0 < expr->get_param_count()) {
expr = expr->get_param_expr(0);
}
return expr;
}

2
src/sql/resolver/dml/ob_select_stmt.h
View File

@ -601,6 +601,8 @@ public:
share::schema::ViewCheckOption get_check_option() const { return check_option_; }
void set_check_option(share::schema::ViewCheckOption check_option) { check_option_ = check_option; }
// this function will only be called while resolving with clause.
int get_pure_set_exprs(ObIArray<ObRawExpr*> &pure_set_exprs) const;
static ObRawExpr* get_pure_set_expr(ObRawExpr *expr);
private:
SetOperator set_op_;