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[FEAT MERGE] [v4.2] add table generator and several random utility functions

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This commit is contained in:
raywill
2023-04-13 08:22:22 +00:00
committed by ob-robot
parent 94159e6675
commit 27488211d2
34 changed files with 1659 additions and 79 deletions
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36
src/sql/engine/basic/ob_function_table_op.cpp
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@ -37,6 +37,14 @@ int ObFunctionTableOp::inner_open()
int ret = OB_SUCCESS;
node_idx_ = 0;
already_calc_ = false;
if (OB_ISNULL(MY_SPEC.value_expr_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("value expr is not init", K(ret));
} else if (ObExtendType == MY_SPEC.value_expr_->datum_meta_.type_) {
next_row_func_ = &ObFunctionTableOp::inner_get_next_row_udf;
} else {
next_row_func_ = &ObFunctionTableOp::inner_get_next_row_sys_func;
}
return ret;
}
@ -115,6 +123,11 @@ int ObFunctionTableOp::get_current_result(ObObj &result)
}
int ObFunctionTableOp::inner_get_next_row()
{
return (this->*next_row_func_)();
}
int ObFunctionTableOp::inner_get_next_row_udf()
{
int ret = OB_SUCCESS;
ObPhysicalPlanCtx *plan_ctx = nullptr;
@ -205,5 +218,28 @@ int ObFunctionTableOp::inner_get_next_row()
return ret;
}
int ObFunctionTableOp::inner_get_next_row_sys_func()
{
int ret = OB_SUCCESS;
ObPhysicalPlanCtx *plan_ctx = nullptr;
ObDatum *value = nullptr;
clear_evaluated_flag();
if (OB_ISNULL(plan_ctx = ctx_.get_physical_plan_ctx())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("failed to get plan ctx", K(ret), K(plan_ctx));
} else if (OB_FAIL(ctx_.check_status())) {
LOG_WARN("failed to check status ", K(ret));
} else if (OB_FAIL(MY_SPEC.value_expr_->eval(eval_ctx_, value))) {
if (OB_ITER_END != ret) {
LOG_WARN("failed to eval value expr", K(ret));
}
} else {
MY_SPEC.column_exprs_.at(0)->locate_datum_for_write(eval_ctx_).set_datum(*value);
MY_SPEC.column_exprs_.at(0)->set_evaluated_projected(eval_ctx_);
}
return ret;
}
} // end namespace sql
} // end namespace oceanbase