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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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16
src/sql/engine/expr/ob_expr_json_valid.cpp
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@ -67,11 +67,12 @@ int ObExprJsonValid::calc_result_type1(ObExprResType &type,
return ret;
}
template <typename T>
int ObExprJsonValid::calc(const T &data, ObObjType type, ObCollationType cs_type,
ObIAllocator *allocator, T &res)
int ObExprJsonValid::calc(ObEvalCtx &ctx, const ObDatum &data, ObDatumMeta meta,
bool has_lob_header, ObIAllocator *allocator, ObDatum &res)
{
INIT_SUCC(ret);
ObObjType type = meta.type_;
ObCollationType cs_type = meta.cs_type_;
bool is_null = false;
bool is_empty_text = false;
bool is_invalid = false;
@ -84,7 +85,9 @@ int ObExprJsonValid::calc(const T &data, ObObjType type, ObCollationType cs_type
is_invalid = true;
} else {
common::ObString j_str = data.get_string();
if (OB_UNLIKELY(j_str == "")) {
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_UNLIKELY(j_str == "")) {
if (type == ObJsonType) {
is_null = true;
} else {
@ -125,15 +128,14 @@ int ObExprJsonValid::eval_json_valid(const ObExpr &expr, ObEvalCtx &ctx, ObDatum
INIT_SUCC(ret);
ObDatum *datum = NULL;
ObExpr *arg = expr.args_[0];
ObCollationType cs_type = arg->datum_meta_.cs_type_;
if (OB_FAIL(arg->eval(ctx, datum))) {
LOG_WARN("eval json arg failed", K(ret));
} else {
ObEvalCtx::TempAllocGuard tmp_alloc_g(ctx);
common::ObIAllocator &tmp_allocator = tmp_alloc_g.get_allocator();
if (OB_FAIL(calc(*datum, arg->datum_meta_.type_, cs_type, &tmp_allocator, res))) {
LOG_WARN("fail to calc json valid result", K(ret), K(arg->datum_meta_.type_));
if (OB_FAIL(calc(ctx, *datum, arg->datum_meta_, arg->obj_meta_.has_lob_header(), &tmp_allocator, res))) {
LOG_WARN("fail to calc json valid result", K(ret), K(arg->datum_meta_));
}
}