patch 4.0
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@ -13,18 +13,24 @@
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#define USING_LOG_PREFIX SQL_ENG
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#include "sql/engine/expr/ob_expr_not_exists.h"
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#include "common/row/ob_row_iterator.h"
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namespace oceanbase {
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namespace oceanbase
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{
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using namespace common;
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namespace sql {
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namespace sql
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{
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ObExprNotExists::ObExprNotExists(ObIAllocator& alloc)
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: ObSubQueryRelationalExpr(alloc, T_OP_NOT_EXISTS, N_NOT_EXISTS, 1, NOT_ROW_DIMENSION)
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{}
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ObExprNotExists::ObExprNotExists(ObIAllocator &alloc)
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: ObSubQueryRelationalExpr(alloc, T_OP_NOT_EXISTS, N_NOT_EXISTS, 1, NOT_ROW_DIMENSION)
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{
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}
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ObExprNotExists::~ObExprNotExists()
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{}
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{
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}
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int ObExprNotExists::calc_result_type1(ObExprResType& type, ObExprResType& type1, ObExprTypeCtx& type_ctx) const
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int ObExprNotExists::calc_result_type1(ObExprResType &type,
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ObExprResType &type1,
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ObExprTypeCtx &type_ctx) const
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{
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UNUSED(type_ctx);
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int ret = OB_SUCCESS;
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@ -32,48 +38,14 @@ int ObExprNotExists::calc_result_type1(ObExprResType& type, ObExprResType& type1
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ret = OB_ERR_INVALID_TYPE_FOR_OP;
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} else {
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type.set_int32();
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type.set_result_flag(OB_MYSQL_NOT_NULL_FLAG);
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type.set_result_flag(NOT_NULL_FLAG);
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type.set_scale(DEFAULT_SCALE_FOR_INTEGER);
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type.set_precision(DEFAULT_PRECISION_FOR_BOOL);
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}
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return ret;
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}
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int ObExprNotExists::calc_result1(ObObj& result, const ObObj& obj1, ObExprCtx& expr_ctx) const
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{
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int ret = OB_SUCCESS;
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int64_t query_idx = OB_INVALID_INDEX;
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ObNewRow* row = NULL;
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ObNewRowIterator* row_iter = NULL;
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if (OB_ISNULL(expr_ctx.subplan_iters_)) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("expr_ctx.subplan_iters_ is null");
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} else {
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ObIArray<ObNewRowIterator*>* row_iters = expr_ctx.subplan_iters_;
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if (OB_FAIL(obj1.get_int(query_idx))) {
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LOG_WARN("get int failed", K(obj1), K(ret));
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} else if (OB_UNLIKELY(query_idx < 0 || query_idx >= row_iters->count())) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("query_idx is invalid", "row_iter_count", row_iters->count(), K(query_idx));
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} else if (OB_ISNULL(row_iter = row_iters->at(query_idx))) {
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ret = OB_ERR_NULL_VALUE;
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LOG_WARN("row iterator is null", K(query_idx));
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} else if (OB_FAIL(row_iter->get_next_row(row))) {
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if (OB_LIKELY(OB_ITER_END == ret)) {
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ret = OB_SUCCESS;
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result.set_int32(1); // not exist
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} else {
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LOG_WARN("get next row failed", K(ret));
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}
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} else {
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result.set_int32(0); // exist row,so return false
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}
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}
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return ret;
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}
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int ObExprNotExists::cg_expr(ObExprCGCtx&, const ObRawExpr&, ObExpr& rt_expr) const
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int ObExprNotExists::cg_expr(ObExprCGCtx &, const ObRawExpr &, ObExpr &rt_expr) const
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{
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int ret = OB_SUCCESS;
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CK(1 == rt_expr.arg_cnt_);
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@ -81,7 +53,8 @@ int ObExprNotExists::cg_expr(ObExprCGCtx&, const ObRawExpr&, ObExpr& rt_expr) co
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return ret;
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};
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int ObExprNotExists::not_exists_eval(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum)
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int ObExprNotExists::not_exists_eval(
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const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum)
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{
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int ret = OB_SUCCESS;
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bool exists = false;
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