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cherry-pick bug fix in 3.1

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This commit is contained in:
bf0
2021-07-21 23:46:35 +08:00
committed by wangzelin.wzl
parent d49f1baf7d
commit 7fb21bbbe7
23 changed files with 450 additions and 208 deletions
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139
src/sql/engine/expr/ob_expr_to_multi_byte.cpp
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@ -56,66 +56,125 @@ int ObExprToMultiByte::calc_result_type1(ObExprResType& type, ObExprResType& typ
return ret;
}
int ObExprToMultiByte::calc_result1(ObObj& result, const ObObj& obj, ObExprCtx& expr_ctx) const
int calc_to_multi_byte_expr(const ObString &input, const ObCollationType cs_type,
char *buf, const int64_t buf_len, int32_t &pos)
{
int ret = OB_SUCCESS;
int64_t min_char_width = 0;
if (OB_FAIL(ObCharset::get_mbminlen_by_coll(cs_type, min_char_width))) {
LOG_WARN("fail to get mbminlen", K(ret));
} else if (min_char_width > 1) {
ObDataBuffer allocator(buf, buf_len);
ObString output;
if (OB_FAIL(ob_write_string(allocator, input, output))) {
LOG_WARN("invalid input value", K(ret), K(buf_len), K(input));
} else {
pos = output.length();
}
} else {
ObStringScanner scanner(input, cs_type);
ObString encoding;
int32_t wc = 0;
char *ptr = buf;
while (OB_SUCC(ret)
&& scanner.next_character(encoding, wc, ret)) {
int32_t length = 0;
if (wc == 0x20) { //处理空格
wc = 0x3000;
//smart quote not support https://gerry.lamost.org/blog/?p=295757
//} else if (wc == 0x22) { //" --> ” smart double quote
// wc = 0x201D;
//} else if (wc == 0x27) { //' --> ’ smart single quote
// wc = 0x2019;
} else if (wc >= 0x21 && wc <= 0x7E) {
wc += 65248;
} else {
//do nothing
}
OZ (ObCharset::wc_mb(cs_type, wc, ptr, buf + buf_len - ptr, length));
ptr += length;
LOG_DEBUG("process char", K(ret), K(wc));
}
pos = ptr - buf;
}
return ret;
}
int ObExprToMultiByte::calc_result1(ObObj &result,
const ObObj &obj,
ObExprCtx &expr_ctx) const
{
int ret = OB_SUCCESS;
ObString src_string;
ObString dst_string;
ObCollationType src_collation = obj.get_collation_type();
int64_t min_char_width = 0;
if (obj.is_null_oracle()) {
result.set_null();
} else {
CK(OB_NOT_NULL(expr_ctx.calc_buf_));
OZ(obj.get_string(src_string));
char* buff = NULL;
int64_t buff_len = src_string.length() * 4;
CK (OB_NOT_NULL(expr_ctx.calc_buf_));
OZ (obj.get_string(src_string));
if (OB_SUCC(ret)) {
char* buff = NULL;
int64_t buff_len = src_string.length() * ObCharset::MAX_MB_LEN;
int32_t pos = 0;
if (OB_ISNULL(buff = static_cast<char*>(expr_ctx.calc_buf_->alloc(buff_len)))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("fail to allocate buffer", K(ret), K(buff_len));
} else if (OB_FAIL(calc_to_multi_byte_expr(src_string, src_collation, buff, buff_len, pos))) {
LOG_WARN("fail to calc", K(ret));
} else {
dst_string.assign_buffer(buff, buff_len);
result.set_common_value(ObString(pos, buff));
result.set_meta_type(result_type_);
}
}
OZ(ObCharset::get_mbminlen_by_coll(src_collation, min_char_width));
}
return ret;
}
if (min_char_width > 1) {
OX(dst_string.write(src_string.ptr(), src_string.length()));
OX(result.set_nvarchar2(dst_string));
int ObExprToMultiByte::cg_expr(ObExprCGCtx &op_cg_ctx,
const ObRawExpr &raw_expr,
ObExpr &rt_expr) const
{
int ret = OB_SUCCESS;
UNUSED(op_cg_ctx);
UNUSED(raw_expr);
rt_expr.eval_func_ = calc_to_multi_byte;
return ret;
}
int ObExprToMultiByte::calc_to_multi_byte(const ObExpr &expr,
ObEvalCtx &ctx,
ObDatum &res_datum)
{
int ret = OB_SUCCESS;
ObDatum *src_param = NULL;
if (expr.args_[0]->eval(ctx, src_param)) {
LOG_WARN("eval arg failed", K(ret));
} else {
if (src_param->is_null()) {
res_datum.set_null();
} else {
const char* src_ptr = src_string.ptr();
int64_t src_pos = 0;
char* dst_ptr = buff;
int64_t dst_pos = 0;
ObString src = src_param->get_string();
char *buf = NULL;
int64_t buf_len = src.length() * ObCharset::MAX_MB_LEN;
int32_t length = 0;
int32_t wc = 0;
while (OB_SUCC(ret) && src_pos < src_string.length()) {
OZ(ObCharset::mb_wc(src_collation, src_ptr + src_pos, src_string.length() - src_pos, length, wc));
OX(src_pos += length);
int32_t wc_before_process = wc;
if (wc == 0x20) {
wc = 0x3000;
// smart quote not support https://gerry.lamost.org/blog/?p=295757
//} else if (wc == 0x22) { //" --> " smart double quote
// wc = 0x201D;
//} else if (wc == 0x27) { //' --> ' smart single quote
// wc = 0x2019;
} else if (wc >= 0x21 && wc <= 0x7E) {
wc += 65248;
} else {
// do nothing
}
LOG_DEBUG("process char", K(ret), K(src_pos), K(wc_before_process), K(wc));
OZ(ObCharset::wc_mb(src_collation, wc, dst_ptr + dst_pos, buff_len - dst_pos, length));
OX(dst_pos += length);
if (OB_ISNULL(buf = static_cast<char*>(expr.get_str_res_mem(ctx, buf_len)))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("fail to allocate memory", K(ret), K(src));
} else if (OB_FAIL(calc_to_multi_byte_expr(src, expr.args_[0]->datum_meta_.cs_type_,
buf, buf_len, length))) {
LOG_WARN("fail to calc unistr", K(ret));
} else {
res_datum.set_string(buf, length);
}
OX(dst_string.assign_ptr(dst_ptr, dst_pos));
OX(result.set_varchar(dst_string));
}
OX(result.set_collation(result_type_));
}
return ret;
}