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[FEAT MERGE] Lob SQL refactoring (Mem-LobLocator, expressions and dbms_lob adaptions)

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Co-authored-by: chaser-ch <chaser.ch@antgroup.com>
This commit is contained in:
obdev
2023-01-28 20:40:15 +08:00
committed by ob-robot
parent 4bb1033505
commit 3d4f554258
350 changed files with 19091 additions and 3918 deletions
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24
src/sql/engine/expr/ob_expr_json_pretty.cpp
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@ -53,11 +53,12 @@ int ObExprJsonPretty::calc_result_type1(ObExprResType &type,
return ret;
}
template <typename T>
int ObExprJsonPretty::calc(const T &data, ObObjType type, ObCollationType cs_type,
int ObExprJsonPretty::calc(ObEvalCtx &ctx, const ObDatum &data, ObDatumMeta meta, bool has_lob_header,
ObIAllocator *allocator, ObJsonBuffer &j_buf, bool &is_null)
{
INIT_SUCC(ret);
ObObjType type = meta.type_;
ObCollationType cs_type = meta.cs_type_;
ObIJsonBase *j_base = NULL;
ObJsonInType j_in_type = ObJsonExprHelper::get_json_internal_type(type);
common::ObString j_str = data.get_string(); // json text or json binary
@ -72,6 +73,8 @@ int ObExprJsonPretty::calc(const T &data, ObObjType type, ObCollationType cs_typ
LOG_USER_ERROR(OB_ERR_INVALID_TYPE_FOR_JSON, 1, "json_pretty");
} else if (OB_FAIL(ObJsonExprHelper::ensure_collation(type, cs_type))) {
LOG_WARN("fail to ensure collation", K(ret), K(type), K(cs_type));
} else if (OB_FAIL(ObTextStringHelper::read_real_string_data(*allocator, data, meta, has_lob_header, j_str))) {
LOG_WARN("fail to get real data.", K(ret), K(j_str));
} else if (OB_FAIL(ObJsonBaseFactory::get_json_base(allocator, j_str, j_in_type,
j_in_type, j_base))) {
if (ret == OB_ERR_INVALID_JSON_TEXT) {
@ -93,27 +96,18 @@ int ObExprJsonPretty::eval_json_pretty(const ObExpr &expr, ObEvalCtx &ctx, ObDat
common::ObArenaAllocator &tmp_allocator = tmp_alloc_g.get_allocator();
ObExpr *arg = expr.args_[0];
ObDatum *j_datum = NULL;
ObObjType type = arg->datum_meta_.type_;
ObCollationType cs_type = arg->datum_meta_.cs_type_;
ObJsonBuffer j_buf(&tmp_allocator);
bool is_null = false;
if (OB_FAIL(arg->eval(ctx, j_datum))) {
ret = OB_ERR_INVALID_DATATYPE;
LOG_WARN("error, eval json args datum failed", K(ret));
} else if (OB_FAIL(calc(*j_datum, type, cs_type, &tmp_allocator, j_buf, is_null))) {
LOG_WARN("fail to calc json pretty result", K(ret), K(j_datum), K(type), K(cs_type));
} else if (OB_FAIL(calc(ctx, *j_datum, arg->datum_meta_, arg->obj_meta_.has_lob_header(), &tmp_allocator, j_buf, is_null))) {
LOG_WARN("fail to calc json pretty result", K(ret), K(j_datum), K(arg->datum_meta_));
} else if (is_null) {
res.set_null();
} else {
char *buf = expr.get_str_res_mem(ctx, j_buf.length());
if (buf) {
MEMMOVE(buf, j_buf.ptr(), j_buf.length());
res.set_string(buf, j_buf.length());
} else {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("fail to alloc memory for json pretty result", K(ret), K(j_buf));
}
} else if (OB_FAIL(ObJsonExprHelper::pack_json_str_res(expr, ctx, res, j_buf))) {
LOG_WARN("fail to pack json result", K(ret));
}
return ret;