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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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104
src/sql/engine/expr/ob_expr_xmlparse.cpp
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@ -13,7 +13,11 @@
#include "ob_expr_xmlparse.h"
#include "sql/engine/ob_exec_context.h"
#include "ob_expr_xml_func_helper.h"
#ifdef OB_BUILD_ORACLE_XML
#include "sql/engine/expr/ob_expr_xml_func_helper.h"
#include "lib/xml/ob_xml_tree.h"
#include "lib/xml/ob_xml_util.h"
#endif
#define USING_LOG_PREFIX SQL_ENG
@ -82,6 +86,104 @@ int ObExprXmlparse::calc_result_typeN(ObExprResType &type,
return ret;
}
#ifdef OB_BUILD_ORACLE_XML
int ObExprXmlparse::eval_xmlparse(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res)
{
INIT_SUCC(ret);
ObDatum *xml_datum = NULL;
ObString xml_plain_text;
ObMulModeNodeType res_type;
uint8_t xml_type = OB_XML_DOC_TYPE_IMPLICIT;
uint8_t is_wellformed = OB_WELLFORMED_IMPLICIT;
bool is_xml_text_null = false;
bool need_format = false;
ObEvalCtx::TempAllocGuard tmp_alloc_g(ctx);
common::ObArenaAllocator &tmp_allocator = tmp_alloc_g.get_allocator();
ObMulModeMemCtx* mem_ctx = nullptr;
lib::ObMallocHookAttrGuard malloc_guard(lib::ObMemAttr(MTL_ID(), "XMLCodeGen"));
if (OB_FAIL(ObXmlUtil::create_mulmode_tree_context(&tmp_allocator, mem_ctx))) {
LOG_WARN("fail to create tree memory context", K(ret));
} else if (OB_UNLIKELY(expr.arg_cnt_ != 4)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid arg_cnt_", K(expr.arg_cnt_));
} else if (OB_FAIL(expr.args_[3]->eval(ctx, xml_datum))) {
LOG_WARN("get extra para failed", K(ret));
} else if (FALSE_IT(need_format = (xml_datum->get_int() & 0x08) != 0)) {
} else if (OB_FAIL(get_clause_opt(expr, ctx, 0, xml_type, OB_XML_DOC_TYPE_COUNT))) {
LOG_WARN("get document/context error", K(ret), K(xml_type));
} else if (OB_FAIL(get_clause_opt(expr, ctx, 2, is_wellformed, OB_WELLFORMED_COUNT))) {
LOG_WARN("get wellformed error", K(ret), K(is_wellformed));
} else if (OB_FAIL(expr.args_[1]->eval(ctx, xml_datum))) {
LOG_WARN("get extra para failed", K(ret));
} else if (expr.args_[1]->datum_meta_.type_ == ObNullType || xml_datum->is_null()) {
is_xml_text_null = true;
} else if (OB_FAIL(ObTextStringHelper::get_string(expr, tmp_allocator, 1, xml_datum, xml_plain_text))) {
LOG_WARN("get xml plain text failed", K(ret), K(is_xml_text_null));
}
bool is_unparsed_res = false;
if(OB_FAIL(ret)) {
} else if (is_xml_text_null) {
res.set_null();
} else {
ObXmlDocument* doc = nullptr;
ObXmlParser parser(mem_ctx);
if (xml_type == OB_XML_DOCUMENT) {
if (is_wellformed) {
res_type = M_UNPARESED_DOC;
if(OB_FAIL(ObMulModeFactory::add_unparsed_text_into_doc(mem_ctx, xml_plain_text, doc))) {
LOG_WARN("add text failed", K(ret), K(xml_plain_text));
}
} else if (OB_FAIL(parser.parse_document(xml_plain_text))) {
ret = OB_ERR_XML_PARSE;
LOG_USER_ERROR(OB_ERR_XML_PARSE);
LOG_WARN("parse xml plain text as document failed.", K(xml_plain_text));
} else {
res_type = M_DOCUMENT;
doc = parser.document();
}
} else if (xml_type == OB_XML_CONTENT) {
if (!is_wellformed) {
if (OB_FAIL(parser.parse_content(xml_plain_text))) {
ret = OB_ERR_XML_PARSE;
LOG_USER_ERROR(OB_ERR_XML_PARSE);
LOG_WARN("parse xml plain text as content failed.", K(xml_plain_text));
} else {
res_type = M_CONTENT;
doc = parser.document();
}
} else {
is_unparsed_res = true;
res_type = M_UNPARSED;
if (OB_ISNULL(doc = OB_NEWx(ObXmlDocument, mem_ctx->allocator_, ObMulModeNodeType::M_DOCUMENT, mem_ctx))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("fail to create document", K(ret));
} else if(OB_FAIL(doc->append_unparse_text(xml_plain_text))) {
LOG_WARN("fail to add unparse text to doc", K(ret));
}
}
}
if (OB_SUCC(ret)) {
ObCollationType session_cs_type = CS_TYPE_UTF8MB4_BIN;
if (!doc->get_encoding().empty() || doc->get_encoding_flag()) {
doc->set_encoding(ObXmlUtil::get_charset_name(session_cs_type));
}
if (OB_FAIL(ObXMLExprHelper::pack_xml_res(expr, ctx, res, doc, mem_ctx,
res_type,
xml_plain_text))) {
LOG_WARN("pack_xml_res failed", K(ret));
}
}
}
return ret;
}
#endif
int ObExprXmlparse::get_clause_opt(const ObExpr &expr,
ObEvalCtx &ctx,