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fix dblink type bugs

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This commit is contained in:
cqliang1995
2023-06-12 02:43:11 +00:00
committed by ob-robot
parent f6efe78813
commit 9ab529a64b
17 changed files with 265 additions and 116 deletions
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47
src/sql/ob_sql_utils.cpp
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@ -3123,53 +3123,6 @@ int ObImplicitCursorInfo::merge_cursor(const ObImplicitCursorInfo &other)
return ret;
}
OB_SERIALIZE_MEMBER(ObParamPosIdx, pos_, idx_);
int ObLinkStmtParam::write(char *buf, int64_t buf_len, int64_t &pos, int64_t param_idx)
{
/*
* we need 4 bytes for every const param:
* 1 byte: '\0' for meta info flag. '\0' can not appear in any sql stmt fmt.
* 1 byte: meta info type. now we used 0 to indicate const param.
* 2 bytes: uint16 for param index.
*/
int ret = OB_SUCCESS;
if (buf_len - pos < PARAM_LEN) {
ret = OB_SIZE_OVERFLOW;
LOG_WARN("buffer is not enough", K(ret), K(buf_len), K(pos));
} else if (param_idx < 0 || param_idx > UINT16_MAX) {
ret = OB_NOT_SUPPORTED;
LOG_WARN("param count should be between 0 and UINT16_MAX", K(ret), K(param_idx));
LOG_USER_ERROR(OB_NOT_SUPPORTED, "param count not in the range 0 - UINT16_MAX");
} else {
buf[pos++] = 0; // meta flag.
buf[pos++] = 0; // meta type.
*(uint16_t*)(buf + pos) = param_idx;
pos += sizeof(uint16_t);
}
return ret;
}
int ObLinkStmtParam::read_next(const char *buf, int64_t buf_len, int64_t &pos, int64_t &param_idx)
{
int ret = OB_SUCCESS;
const char *ch = buf + pos;
const char *buf_end = buf + buf_len - PARAM_LEN + 1;
param_idx = -1;
while (OB_SUCC(ret) && param_idx < 0 && ch < buf_end) {
if (0 != ch[0]) {
ch++;
} else if (0 != ch[1]) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unknown meta type", "meta_type", static_cast<int>(ch[1]));
} else {
param_idx = static_cast<int64_t>(*(uint16_t*)(ch + 2));
}
}
pos = ch - buf;
return ret;
}
int64_t ObLinkStmtParam::get_param_len()
{
return PARAM_LEN;