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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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56
src/sql/resolver/ddl/ob_alter_table_resolver.cpp
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@ -24,6 +24,10 @@
#include "sql/resolver/dml/ob_delete_resolver.h"
#include "share/ob_index_builder_util.h"
#include "sql/engine/expr/ob_expr_lob_utils.h"
#ifdef OB_BUILD_ORACLE_XML
#include "lib/xml/ob_xml_parser.h"
#include "lib/xml/ob_xml_util.h"
#endif
namespace oceanbase
{
@ -4332,8 +4336,60 @@ int ObAlterTableResolver::add_udt_hidden_column(ObAlterTableStmt *alter_table_st
LOG_WARN("fail to calc xmltype default value expr", K(ret));
} else {
// calc result is 1. string type (not lob) or 2. xmltype binary (need to remove lob header)
#ifdef OB_BUILD_ORACLE_XML
ObString res_string;
ObObj xml_default;
xml_default.set_null();
if (orig_default_value.is_character_type()) {
// convert to xml binary
ObXmlDocument *xml_doc = NULL;
ObMulModeMemCtx* mem_ctx = nullptr;
lib::ObMallocHookAttrGuard malloc_guard(lib::ObMemAttr(MTL_ID(), "XMLCodeGen"));
if (OB_FAIL(ObXmlUtil::create_mulmode_tree_context(allocator_, mem_ctx))) {
LOG_WARN("fail to create tree memory context", K(ret));
} else if (OB_FAIL(ObXmlParserUtils::parse_document_text(mem_ctx,
orig_default_value.get_string(),
xml_doc))) {
LOG_WARN("parse xml plain text as document failed.", K(ret), K(orig_default_value.get_string()));
ret = OB_ERR_XML_PARSE;
LOG_USER_ERROR(OB_ERR_XML_PARSE);
} else if (OB_ISNULL(xml_doc)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get null xml document.", K(ret));
} else {
ObIMulModeBase *xml_root = static_cast<ObIMulModeBase *>(xml_doc);
ObString res_string;
if (OB_FAIL(xml_root->get_raw_binary(res_string, allocator_))) {
LOG_WARN("failed to get xml binary", K(ret), K(orig_default_value.get_string()));
} else {
xml_default.set_lob_value(ObLongTextType, res_string.ptr(), res_string.length());
xml_default.set_collation_type(CS_TYPE_BINARY);
}
}
} else if (orig_default_value.is_xml_sql_type()) {
// move lob header
res_string = orig_default_value.get_string();
if (OB_FAIL(ObTextStringHelper::read_real_string_data(allocator_,
ObLongTextType,
CS_TYPE_BINARY,
true, res_string))) {
LOG_WARN("failed to get xml binary data", K(ret), K(orig_default_value.get_string()));
} else {
xml_default.set_lob_value(ObLongTextType, res_string.ptr(), res_string.length());
xml_default.set_collation_type(CS_TYPE_BINARY);
}
} else {
ret = OB_NOT_SUPPORTED;
LOG_WARN("error xml default type", K(ret), K(orig_default_value));
}
if (OB_FAIL(ret)) {
} else if (OB_FAIL(hidden_blob.set_orig_default_value(xml_default))) {
LOG_WARN("fail to set orig default value", K(xml_default), K(ret));
}
#else
ret = OB_NOT_SUPPORTED;
LOG_WARN("xml type not supported in opensource version", K(ret), K(orig_default_value));
#endif
}
if (OB_FAIL(ret)) {