init push

2021-05-31 22:56:52 +08:00
commit cea7de1475
7020 changed files with 5689869 additions and 0 deletions
--- a/src/sql/engine/expr/ob_expr_to_blob.cpp
+++ b/src/sql/engine/expr/ob_expr_to_blob.cpp
@ -0,0 +1,99 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX SQL_ENG
+#include <string.h>
+#include "sql/engine/expr/ob_expr_to_blob.h"
+#include "sql/session/ob_sql_session_info.h"
+#include "sql/parser/ob_item_type.h"
+#include "lib/oblog/ob_log.h"
+
+namespace oceanbase {
+using namespace common;
+namespace sql {
+
+ObExprToBlob::ObExprToBlob(ObIAllocator& alloc) : ObStringExprOperator(alloc, T_FUN_SYS_TO_BLOB, N_TO_BLOB, 1)
+{}
+
+ObExprToBlob::~ObExprToBlob()
+{}
+
+int ObExprToBlob::calc_result_type1(ObExprResType& type, ObExprResType& text, common::ObExprTypeCtx& type_ctx) const
+{
+  UNUSED(type_ctx);
+  int ret = OB_SUCCESS;
+
+  if (ob_is_null(text.get_type())) {
+    type.set_null();
+  } else if (ob_is_blob(text.get_type(), text.get_collation_type()) || ob_is_raw(text.get_type()) ||
+             ob_is_string_tc(text.get_type())) {
+    type.set_blob();
+    type.set_collation_type(CS_TYPE_BINARY);
+    if (ob_is_string_tc(text.get_type())) {
+      text.set_calc_type(common::ObRawType);
+    }
+  } else {
+    ret = OB_ERR_INVALID_TYPE_FOR_OP;
+    LOG_WARN("wrong type of argument in function to_blob", K(ret), K(text));
+  }
+
+  return ret;
+}
+
+int ObExprToBlob::calc_result1(common::ObObj& result, const ObObj& text, ObExprCtx& expr_ctx) const
+{
+  UNUSED(expr_ctx);
+  int ret = OB_SUCCESS;
+
+  if (text.is_null()) {
+    result.set_null();
+  } else if (text.is_raw() || ob_is_blob(text.get_type(), text.get_collation_type())) {
+    ObString temp_str = text.get_string();
+    result.set_lob_value(ObLongTextType, temp_str.ptr(), temp_str.length());
+    result.set_collation_type(CS_TYPE_BINARY);
+  } else {
+    // won't come here
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("wrong type of argument in function to_blob", K(ret), K(text.get_type()), K(text));
+  }
+
+  return ret;
+}
+
+int ObExprToBlob::eval_to_blob(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res)
+{
+  int ret = OB_SUCCESS;
+  ObDatum* arg = NULL;
+  if (OB_UNLIKELY(1 != expr.arg_cnt_)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("invalid arg cnt or arg res type", K(ret), K(expr.arg_cnt_));
+  } else if (OB_FAIL(expr.eval_param_value(ctx, arg))) {
+    LOG_WARN("eval param failed", K(ret));
+  } else if (arg->is_null()) {
+    res.set_null();
+  } else {
+    res.set_datum(*arg);
+  }
+  return ret;
+}
+
+int ObExprToBlob::cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const
+{
+  int ret = OB_SUCCESS;
+  UNUSED(expr_cg_ctx);
+  UNUSED(raw_expr);
+  rt_expr.eval_func_ = eval_to_blob;
+  return ret;
+}
+
+}  // namespace sql
+}  // namespace oceanbase