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[FEAT MERGE] 开源裁减颗粒度优化

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Co-authored-by: nroskill <nroskill@gmail.com>
Co-authored-by: akaError <lzg020616@163.com>
Co-authored-by: yinyj17 <yinyijun92@gmail.com>
This commit is contained in:
wenxingsen
2023-08-15 02:40:25 +00:00
committed by ob-robot
parent a31e422133
commit 9b31f8aa03
378 changed files with 26718 additions and 2379 deletions
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19
src/sql/engine/expr/ob_expr_extract_value.h
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@ -15,6 +15,9 @@
#define OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_EXRACTVALUE_H
#include "sql/engine/expr/ob_expr_operator.h"
#ifdef OB_BUILD_ORACLE_XML
#include "lib/xml/ob_xpath.h"
#endif
namespace oceanbase
{
@ -31,11 +34,27 @@ class ObExprExtractValue : public ObFuncExprOperator
int64_t param_num,
common::ObExprTypeCtx &type_ctx) const override;
#ifdef OB_BUILD_ORACLE_XML
static int eval_extract_value(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
#else
static int eval_extract_value(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res) { return OB_NOT_SUPPORTED; }
#endif
virtual int cg_expr(ObExprCGCtx &expr_cg_ctx,
const ObRawExpr &raw_expr,
ObExpr &rt_expr)
const override;
#ifdef OB_BUILD_ORACLE_XML
private:
static int extract_xpath_result(ObMulModeMemCtx *xml_mem_ctx, ObString& xpath_str, ObString& default_ns,
ObIMulModeBase* xml_doc, ObPathVarObject* prefix_ns, ObString &xml_res);
static int extract_node_value(ObIAllocator &allocator, ObIMulModeBase *node, ObString &xml_res);
static int has_same_parent_node(ObMulModeMemCtx *xml_mem_ctx, ObString& xpath_str, ObString& default_ns,
ObIMulModeBase* xml_doc, ObPathVarObject* prefix_ns, bool &is_same_parent);
static int merge_text_nodes_with_same_parent(ObIAllocator *allocator, ObIArray<ObIMulModeBase *> &result_nodes,
ObString &xml_res);
static int append_text_value(ObStringBuffer &buffer, ObIMulModeBase *node);
#endif
private:
DISALLOW_COPY_AND_ASSIGN(ObExprExtractValue);
};