From 18b8205f3984bff211131f82e4c0a1e33886ea64 Mon Sep 17 00:00:00 2001
From: znone <glyc@sina.com.cn>
Date: Tue, 27 Aug 2019 12:35:52 +0000
Subject: [PATCH] 提供以标准流的方式直接操纵ODBC的BLOB字段
---
test/TestOdbc.cpp | 62 ++++++
test/TestMysql.cpp | 2
include/qtl_common.hpp | 211 +++++++++++++++++++++
include/qtl_odbc.hpp | 83 +++++++
include/qtl_mysql.hpp | 213 ++-------------------
test/TestOdbc.h | 2
README.md | 10
7 files changed, 379 insertions(+), 204 deletions(-)
diff --git a/README.md b/README.md
index d8738ef..55df680 100644
--- a/README.md
+++ b/README.md
@@ -239,7 +239,7 @@
| float | float |
| double | double |
| char<br>varchar | const char*<br>std::string |
-| blob<br>binary<br>text | qtl::const_blob_data<br>std::istream<br>qtl::mysql::blob_writer |
+| blob<br>binary<br>text | qtl::const_blob_data<br>std::istream<br>qtl::blob_writer |
| date<br>time<br>datetime<br/>timestamp | qtl::mysql::time |
blob_writer是一个函数，它的定义如下：
@@ -259,12 +259,12 @@
| float | float |
| double | double |
| char<br>varchar | char[N]<br>std::array<char, N><br>std::string<br>std::istream
-| blob<br>binary<br>text | qtl::blob_data<br>std::ostream<br>qtl::mysql::blobbuf
+| blob<br>binary<br>text | qtl::blob_data<br>std::ostream<br>qtl::blobbuf
| date<br>time<br>datetime<br>timestamp | qtl::mysql::time |
可以通过qtl::mysql::blobbuf读取BLOB字段的数据：
```C++
-void read_blob(qtl::mysql::blobbuf& buf) {
+void read_blob(qtl::blobbuf& buf) {
istream s(&buf);
...
};
@@ -358,7 +358,7 @@
| CHAR<br>VARCHAR | const char*<br>std::string |
| WCHAR<br>WVARCHAR | const wchar_t*<br>std::wstring |
| BINARY | qtl::const_blob_data |
-| LONGVARBINARY | std::istream |
+| LONGVARBINARY | std::istream<br>qtl::blob_writer |
| DATE | qtl::odbc::date |
| TIME<br>UTCTIME | qtl::odbc::time |
| TIMESTAMP<br>UTCDATETIME | qtl::odbc::datetime |
@@ -379,7 +379,7 @@
| CHAR<br>VARCHAR | char[N]<br>std::array<char, N><br>std::string |
| WCHAR<br>WVARCHAR | wchar_t[N]<br>std::array<wchar_t, N><br>std::string |
| BINARY | qtl::blob_data |
-| LONGVARBINARY | std::ostream |
+| LONGVARBINARY | std::ostream<br>qtl::blobbuf |
| DATE | qtl::odbc::date |
| TIME<br>UTCTIME | qtl::odbc::time |
| TIMESTAMP<br>UTCDATETIME | qtl::odbc::datetime |
diff --git a/include/qtl_common.hpp b/include/qtl_common.hpp
index 8bea74d..3b2e8bb 100644
--- a/include/qtl_common.hpp
+++ b/include/qtl_common.hpp
@@ -1116,6 +1116,217 @@
};
};
+class blobbuf : public std::streambuf
+{
+public:
+ blobbuf() = default;
+ blobbuf(const blobbuf&) = default;
+ blobbuf& operator=(const blobbuf&) = default;
+ virtual ~blobbuf()
+ {
+ overflow();
+ }
+
+
+protected:
+ virtual pos_type seekoff(off_type off, std::ios_base::seekdir dir,
+ std::ios_base::openmode which = std::ios_base::in | std::ios_base::out) override
+ {
+ if (which&std::ios_base::in)
+ {
+ pos_type pos = 0;
+ pos = seekoff(m_pos, off, dir);
+ return seekpos(pos, which);
+ }
+ return std::streambuf::seekoff(off, dir, which);
+ }
+
+ virtual pos_type seekpos(pos_type pos,
+ std::ios_base::openmode which = std::ios_base::in | std::ios_base::out) override
+ {
+ if (pos >= m_size)
+ return pos_type(off_type(-1));
+
+ if (which&std::ios_base::out)
+ {
+ if (pos < m_pos || pos >= m_pos + off_type(egptr() - pbase()))
+ {
+ overflow();
+ m_pos = pos;
+ setp(m_buf.data(), m_buf.data() + m_buf.size());
+ }
+ else
+ {
+ pbump(off_type(pos - pabs()));
+ }
+ }
+ else if (which&std::ios_base::in)
+ {
+ if (pos < m_pos || pos >= m_pos + off_type(epptr() - eback()))
+ {
+ m_pos = pos;
+ setg(m_buf.data(), m_buf.data(), m_buf.data());
+ }
+ else
+ {
+ gbump(off_type(pos - gabs()));
+ }
+ }
+ return pos;
+ }
+
+ virtual std::streamsize showmanyc() override
+ {
+ return m_size - pabs();
+ }
+
+ virtual int_type underflow() override
+ {
+ if (pptr() > pbase())
+ overflow();
+
+ off_type count = egptr() - eback();
+ pos_type next_pos = 0;
+ if (count == 0 && eback() == m_buf.data())
+ {
+ setg(m_buf.data(), m_buf.data(), m_buf.data() + m_buf.size());
+ count = m_buf.size();
+ }
+ else
+ {
+ next_pos = m_pos + pos_type(count);
+ }
+ if (next_pos >= m_size)
+ return traits_type::eof();
+
+ count = std::min(count, m_size - next_pos);
+ m_pos = next_pos;
+ if (read_blob(m_buf.data(), count, m_pos))
+ {
+ setg(eback(), eback(), eback() + count);
+ return traits_type::to_int_type(*gptr());
+ }
+ else
+ {
+ return traits_type::eof();
+ }
+ }
+
+ virtual int_type overflow(int_type ch = traits_type::eof()) override
+ {
+ if (pptr() != pbase())
+ {
+ size_t count = pptr() - pbase();
+ write_blob(pbase(), count);
+
+ //auto intersection = interval_intersection(m_pos, egptr() - eback(), m_pos, epptr() - pbase());
+ //if (intersection.first != intersection.second)
+ //{
+ // commit(intersection.first, intersection.second);
+ //}
+
+ m_pos += count;
+ setp(pbase(), epptr());
+ }
+ if (!traits_type::eq_int_type(ch, traits_type::eof()))
+ {
+ char_type c = traits_type::to_char_type(ch);
+ if (m_pos >= m_size)
+ return traits_type::eof();
+ write_blob(&c, 1);
+
+ //auto intersection = interval_intersection(m_pos, egptr() - eback(), m_pos, 1);
+ //if (intersection.first != intersection.second)
+ //{
+ // eback()[intersection.first - m_pos] = c;
+ //}
+ m_pos += 1;
+
+ }
+ return ch;
+ }
+
+ virtual int_type pbackfail(int_type c = traits_type::eof()) override
+ {
+ if (gptr() == 0
+ || gptr() <= eback()
+ || (!traits_type::eq_int_type(traits_type::eof(), c)
+ && !traits_type::eq(traits_type::to_char_type(c), gptr()[-1])))
+ {
+ return (traits_type::eof()); // can't put back, fail
+ }
+ else
+ { // back up one position and store put-back character
+ gbump(-1);
+ if (!traits_type::eq_int_type(traits_type::eof(), c))
+ *gptr() = traits_type::to_char_type(c);
+ return (traits_type::not_eof(c));
+ }
+ }
+
+private:
+
+ off_type seekoff(off_type position, off_type off, std::ios_base::seekdir dir)
+ {
+ off_type result = 0;
+ switch (dir)
+ {
+ case std::ios_base::beg:
+ result = off;
+ break;
+ case std::ios_base::cur:
+ result = position + off;
+ break;
+ case std::ios_base::end:
+ result = m_size - off;
+ }
+ if (result > m_size)
+ result = m_size;
+ return result;
+ }
+
+ pos_type gabs() const // absolute offset of input pointer in blob field
+ {
+ return m_pos + off_type(gptr() - eback());
+ }
+
+ pos_type pabs() const // absolute offset of output pointer in blob field
+ {
+ return m_pos + off_type(pptr() - pbase());
+ }
+
+protected:
+ std::vector<char> m_buf;
+ pos_type m_size;
+ pos_type m_pos; //position in the input sequence
+
+ virtual bool read_blob(char* buffer, off_type& count, pos_type position) = 0;
+ virtual void write_blob(const char* buffer, size_t count) = 0;
+
+ void init_buffer(std::ios_base::openmode mode)
+ {
+ size_t bufsize;
+ if (m_size > 0)
+ bufsize = std::min<size_t>(blob_buffer_size, m_size);
+ else
+ bufsize = blob_buffer_size;
+ if (mode&std::ios_base::in)
+ {
+ m_buf.resize(bufsize);
+ m_pos = 0;
+ setg(m_buf.data(), m_buf.data(), m_buf.data());
+ }
+ else if (mode&std::ios_base::out)
+ {
+ m_buf.resize(bufsize);
+ m_pos = 0;
+ setp(m_buf.data(), m_buf.data() + bufsize);
+ }
+ }
+};
+
+typedef std::function<void(std::ostream&)> blob_writer;
+
template<typename Database>
struct transaction
{
diff --git a/include/qtl_mysql.hpp b/include/qtl_mysql.hpp
index b532588..834e3c1 100644
--- a/include/qtl_mysql.hpp
+++ b/include/qtl_mysql.hpp
@@ -218,7 +218,7 @@
std::string m_errmsg;
};
-class blobbuf : public std::streambuf
+class blobbuf : public qtl::blobbuf
{
public:
blobbuf() : m_stmt(nullptr), m_field(0)
@@ -226,10 +226,7 @@
}
blobbuf(const blobbuf&) = default;
blobbuf& operator=(const blobbuf&) = default;
- virtual ~blobbuf()
- {
- overflow();
- }
+ virtual ~blobbuf() { overflow(); }
void open(MYSQL_STMT* stmt, int field, const binder& b, std::ios_base::openmode mode)
{
@@ -242,211 +239,41 @@
m_stmt = stmt;
m_field = field;
m_binder = b;
- size_t bufsize;
if (b.length) m_size = *b.length;
- if (m_size > 0)
- bufsize = std::min<size_t>(blob_buffer_size, m_size);
- else
- bufsize = blob_buffer_size;
- if (mode&std::ios_base::in)
- {
- m_buf.resize(bufsize);
- m_pos = 0;
- setg(m_buf.data(), m_buf.data(), m_buf.data());
- }
- else if (mode&std::ios_base::out)
- {
- m_buf.resize(bufsize);
- m_pos = 0;
- setp(m_buf.data(), m_buf.data() + bufsize);
- }
-
+ init_buffer(mode);
}
-protected:
- virtual pos_type seekoff(off_type off, std::ios_base::seekdir dir,
- std::ios_base::openmode which = std::ios_base::in | std::ios_base::out) override
- {
- if (which&std::ios_base::in)
- {
- pos_type pos = 0;
- pos = seekoff(m_pos, off, dir);
- return seekpos(pos, which);
- }
- return std::streambuf::seekoff(off, dir, which);
- }
-
- virtual pos_type seekpos(pos_type pos,
- std::ios_base::openmode which = std::ios_base::in | std::ios_base::out) override
- {
- if (pos >= m_size)
- return pos_type(off_type(-1));
-
- if (which&std::ios_base::out)
- {
- if (pos < m_pos || pos >= m_pos + off_type(egptr() - pbase()))
- {
- overflow();
- m_pos = pos;
- setp(m_buf.data(), m_buf.data() + m_buf.size());
- }
- else
- {
- pbump(off_type(pos - pabs()));
- }
- }
- else if (which&std::ios_base::in)
- {
- if (pos < m_pos || pos >= m_pos + off_type(epptr() - eback()))
- {
- m_pos = pos;
- setg(m_buf.data(), m_buf.data(), m_buf.data());
- }
- else
- {
- gbump(off_type(pos - gabs()));
- }
- }
- return pos;
- }
-
- virtual std::streamsize showmanyc() override
- {
- return m_size - pabs();
- }
-
- virtual int_type underflow() override
- {
- if (pptr() > pbase())
- overflow();
-
- off_type count = egptr() - eback();
- pos_type next_pos=0;
- if (count == 0 && eback() == m_buf.data())
- {
- setg(m_buf.data(), m_buf.data(), m_buf.data() + m_buf.size());
- count = m_buf.size();
- }
- else
- {
- next_pos = m_pos + pos_type(count);
- }
- if (next_pos >= m_size)
- return traits_type::eof();
-
- count = std::min(count, m_size - next_pos);
- m_binder.buffer = m_buf.data();
- m_binder.buffer_length = count;
- m_pos = next_pos;
- int ret = mysql_stmt_fetch_column(m_stmt, &m_binder, m_field, m_pos);
- switch (ret)
- {
- case 0:
- count = std::min(m_binder.buffer_length, *m_binder.length);
- setg(eback(), eback(), eback() + count);
- return traits_type::to_int_type(*gptr());
- case CR_NO_DATA:
- return traits_type::eof();
- default:
- throw error(mysql_stmt_errno(m_stmt), mysql_stmt_error(m_stmt));
- }
- }
-
- virtual int_type overflow(int_type ch = traits_type::eof()) override
- {
- if (pptr() != pbase())
- {
- size_t count = pptr() - pbase();
- int ret = mysql_stmt_send_long_data(m_stmt, m_field, pbase(), count);
- if (ret != 0)
- throw error(mysql_stmt_errno(m_stmt), mysql_stmt_error(m_stmt));
-
- //auto intersection = interval_intersection(m_pos, egptr() - eback(), m_pos, epptr() - pbase());
- //if (intersection.first != intersection.second)
- //{
- // commit(intersection.first, intersection.second);
- //}
-
- m_pos += count;
- setp(pbase(), epptr());
- }
- if (!traits_type::eq_int_type(ch, traits_type::eof()))
- {
- char_type c = traits_type::to_char_type(ch);
- if (m_pos >= m_size)
- return traits_type::eof();
- int ret = mysql_stmt_send_long_data(m_stmt, m_field, &c, 1);
- if (ret != 0)
- throw error(mysql_stmt_errno(m_stmt), mysql_stmt_error(m_stmt));
-
- //auto intersection = interval_intersection(m_pos, egptr() - eback(), m_pos, 1);
- //if (intersection.first != intersection.second)
- //{
- // eback()[intersection.first - m_pos] = c;
- //}
- m_pos += 1;
-
- }
- return ch;
- }
-
- virtual int_type pbackfail(int_type c = traits_type::eof()) override
- {
- if (gptr() == 0
- || gptr() <= eback()
- || (!traits_type::eq_int_type(traits_type::eof(), c)
- && !traits_type::eq(traits_type::to_char_type(c), gptr()[-1])))
- {
- return (traits_type::eof()); // can't put back, fail
- }
- else
- { // back up one position and store put-back character
- gbump(-1);
- if (!traits_type::eq_int_type(traits_type::eof(), c))
- *gptr() = traits_type::to_char_type(c);
- return (traits_type::not_eof(c));
- }
- }
private:
MYSQL_STMT* m_stmt;
binder m_binder;
int m_field;
- std::vector<char> m_buf;
- pos_type m_size;
- pos_type m_pos; //position in the input sequence
- off_type seekoff(off_type position, off_type off, std::ios_base::seekdir dir)
+protected:
+ virtual bool read_blob(char* buffer, off_type& count, pos_type position) override
{
- off_type result = 0;
- switch (dir)
+ m_binder.buffer = buffer;
+ m_binder.buffer_length = count;
+ int ret = mysql_stmt_fetch_column(m_stmt, &m_binder, m_field, position);
+ switch (ret)
{
- case std::ios_base::beg:
- result = off;
- break;
- case std::ios_base::cur:
- result = position + off;
- break;
- case std::ios_base::end:
- result = m_size - off;
+ case 0:
+ count = std::min(m_binder.buffer_length, *m_binder.length);
+ return true;
+ case CR_NO_DATA:
+ return false;
+ default:
+ throw error(mysql_stmt_errno(m_stmt), mysql_stmt_error(m_stmt));
}
- if (result > m_size)
- result = m_size;
- return result;
}
- pos_type gabs() const // absolute offset of input pointer in blob field
+ virtual void write_blob(const char* buffer, size_t count) override
{
- return m_pos + off_type(gptr() - eback());
- }
-
- pos_type pabs() const // absolute offset of output pointer in blob field
- {
- return m_pos + off_type(pptr() - pbase());
+ int ret = mysql_stmt_send_long_data(m_stmt, m_field, buffer, count);
+ if (ret != 0)
+ throw error(mysql_stmt_errno(m_stmt), mysql_stmt_error(m_stmt));
}
};
-
-typedef std::function<void(std::ostream&)> blob_writer;
class base_statement
{
diff --git a/include/qtl_odbc.hpp b/include/qtl_odbc.hpp
index 0c8c482..94ed746 100644
--- a/include/qtl_odbc.hpp
+++ b/include/qtl_odbc.hpp
@@ -10,6 +10,7 @@
#include <assert.h>
#include <malloc.h>
#include <limits.h>
+#include <stdint.h>
#if !defined(_WIN32) || defined(__MINGW32__)
#include <sys/time.h>
@@ -81,12 +82,62 @@
}
}
-protected:
- SQLHANDLE m_handle;
void verify_error(SQLINTEGER code) const
{
- if(code<0)
- throw odbc::error(*this, code);
+ if (code < 0)
+ throw odbc::error(*this, code);
+ }
+
+protected:
+ SQLHANDLE m_handle;
+};
+
+class blobbuf : public qtl::blobbuf
+{
+public:
+ blobbuf() : m_stmt(nullptr), m_field(0)
+ {
+ }
+ blobbuf(const blobbuf&) = default;
+ blobbuf& operator=(const blobbuf&) = default;
+ virtual ~blobbuf() { overflow(); }
+
+ void open(object<SQL_HANDLE_STMT>* stmt, SQLSMALLINT field, std::ios_base::openmode mode)
+ {
+ if (m_stmt && m_field)
+ {
+ overflow();
+ }
+
+ assert(stmt != SQL_NULL_HANDLE);
+ m_stmt = stmt;
+ m_field = field;
+ m_size = INTMAX_MAX;
+ init_buffer(mode);
+ }
+
+private:
+ object<SQL_HANDLE_STMT>* m_stmt;
+ SQLSMALLINT m_field;
+
+protected:
+ virtual bool read_blob(char* buffer, off_type& count, pos_type position) override
+ {
+ SQLLEN indicator=0;
+ SQLRETURN ret = SQLGetData(m_stmt->handle(), m_field + 1, SQL_C_BINARY, buffer, count, const_cast<SQLLEN*>(&indicator));
+ if (ret != SQL_NO_DATA)
+ {
+ count = (indicator > count) || (indicator == SQL_NO_TOTAL) ?
+ count : indicator;
+ m_stmt->verify_error(ret);
+ return true;
+ }
+ else return false;
+ }
+
+ virtual void write_blob(const char* buffer, size_t count) override
+ {
+ m_stmt->verify_error(SQLPutData(m_stmt->handle(), (SQLPOINTER)buffer, count));
}
};
@@ -281,6 +332,21 @@
};
}
+ void bind_param(SQLUSMALLINT index, const blob_writer& param)
+ {
+ m_params[index].m_data = nullptr;
+ m_params[index].m_size = blob_buffer_size;
+ m_params[index].m_indicator = SQL_LEN_DATA_AT_EXEC(m_params[index].m_size);
+ verify_error(SQLBindParameter(m_handle, index + 1, SQL_PARAM_INPUT, SQL_C_BINARY, SQL_LONGVARBINARY,
+ INT_MAX, 0, &m_params[index], 0, &m_params[index].m_indicator));
+ m_params[index].m_after_fetch = [this, index, ¶m](const param_data& b) {
+ blobbuf buf;
+ buf.open(this, index, std::ios::out);
+ std::ostream s(&buf);
+ param(s);
+ };
+ }
+
void bind_field(SQLUSMALLINT index, bool&& v)
{
verify_error(SQLBindCol(m_handle, index+1, SQL_C_BIT, &v, 0, &m_params[index].m_indicator));
@@ -422,6 +488,15 @@
};
}
+ void bind_field(size_t index, blobbuf&& value)
+ {
+ m_params[index].m_data = nullptr;
+ m_params[index].m_size = 0;
+ m_params[index].m_after_fetch = [this, index, &value](const param_data& p) {
+ value.open(this, index, std::ios::in);
+ };
+ }
+
template<typename Type>
void bind_field(size_t index, indicator<Type>&& value)
{
diff --git a/test/TestMysql.cpp b/test/TestMysql.cpp
index ce97fae..bfbcf49 100644
--- a/test/TestMysql.cpp
+++ b/test/TestMysql.cpp
@@ -263,7 +263,7 @@
try
{
- qtl::mysql::blob_writer writer = [](std::ostream& s) {
+ qtl::blob_writer writer = [](std::ostream& s) {
for (size_t i = 0; i != 100; i++)
{
s << i << ": ";
diff --git a/test/TestOdbc.cpp b/test/TestOdbc.cpp
index c018451..3230362 100644
--- a/test/TestOdbc.cpp
+++ b/test/TestOdbc.cpp
@@ -29,7 +29,7 @@
template<>
inline void bind_record<qtl::odbc::statement, TestOdbcRecord>(qtl::odbc::statement& command, TestOdbcRecord&& v)
{
- qtl::bind_field(command, 0, v.id);
+ qtl::bind_field(command, (size_t)0, v.id);
qtl::bind_field(command, 1, v.name);
qtl::bind_field(command, 2, v.create_time);
}
@@ -38,6 +38,7 @@
TestOdbc::TestOdbc() : m_db(m_env)
{
m_db.open("DRIVER={SQL Server};SERVER=(local);UID=;PWD=;Trusted_Connection=yes;DATABASE=test");
+ //m_db.open("DRIVER={SQL Server};SERVER=(local);UID=;PWD=;Trusted_Connection=no;DATABASE=test;UID=sa;PWD=111111;");
cout<<"DBMS: "<<m_db.dbms_name()<<endl;
cout<<"SERVER: "<<m_db.server_name()<<endl;
cout<<"USER: "<<m_db.user_name()<<endl;
@@ -53,6 +54,8 @@
TEST_ADD(TestOdbc::test_iterator)
TEST_ADD(TestOdbc::test_insert_blob)
TEST_ADD(TestOdbc::test_select_blob)
+ TEST_ADD(TestOdbc::test_insert_stream)
+ TEST_ADD(TestOdbc::test_fetch_stream)
}
void TestOdbc::test_dual()
@@ -230,6 +233,62 @@
ASSERT_EXCEPTION(e);
}
}
+void TestOdbc::test_insert_stream()
+{
+ try
+ {
+ qtl::blob_writer writer = [](std::ostream& s) {
+ for (size_t i = 0; i != 100; i++)
+ {
+ s << i << ": ";
+ for (size_t j = 0; j <= i; j++)
+ s << char('a' + j % 26);
+ s << endl;
+ for (size_t j = 0; j <= i; j++)
+ s << '-';
+ s << endl;
+ }
+ };
+ m_db.execute("INSERT INTO test_stream ([Data]) values(?)",
+ writer);
+ m_db.query_first("SELECT @@IDENTITY", id);
+ }
+ catch (qtl::odbc::error& e)
+ {
+ ASSERT_EXCEPTION(e);
+ }
+}
+
+void TestOdbc::test_fetch_stream()
+{
+ try
+ {
+ m_db.query("SELECT Data from test_stream", [](qtl::odbc::blobbuf&& buf) {
+ istream s(&buf);
+ string str;
+ while (!s.eof())
+ {
+ getline(s, str);
+ cout << str << endl;
+ }
+ s.clear(ios_base::goodbit | ios_base::eofbit);
+ s.seekg(0, ios::beg);
+ if (s.good())
+ {
+ cout << "again:" << endl;
+ while (!s.eof())
+ {
+ getline(s, str);
+ cout << str << endl;
+ }
+ }
+ });
+ }
+ catch (qtl::odbc::error& e)
+ {
+ ASSERT_EXCEPTION(e);
+ }
+}
void TestOdbc::get_md5(std::istream& is, unsigned char* result)
{
@@ -249,6 +308,7 @@
cout<<hex;
for(size_t i=0; i!=n; i++)
cout<<(data[i]&0xFF);
+ cout<<dec;
}
int main(int argc, char* argv[])
diff --git a/test/TestOdbc.h b/test/TestOdbc.h
index ac5cf80..1444ffa 100644
--- a/test/TestOdbc.h
+++ b/test/TestOdbc.h
@@ -27,6 +27,8 @@
void test_iterator();
void test_insert_blob();
void test_select_blob();
+ void test_insert_stream();
+ void test_fetch_stream();
private:
uint64_t id;
--
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