TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Controls whether TiDB sup- ports disk spill for the paral- lel HashAgg algo- rithm. When it is ON, disk spill can be trig- gered for the paral- lel HashAgg algo- rithm. This vari- able will be depre- cated

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Controls whether TiDB sup- ports disk spill for the paral- lel HashAgg algo- rithm. When it is ON, disk spill can be trig- gered for the paral- lel HashAgg algo- rithm. This vari- able will be depre- cated

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Controls whether TiDB sup- ports disk spill for the paral- lel HashAgg algo- rithm. When it is ON, disk spill can be trig- gered for the paral- lel HashAgg algo- rithm. This vari- able will be depre- cated

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Controls whether TiDB sup- ports disk spill for the paral- lel HashAgg algo- rithm. When it is ON, disk spill can be trig- gered for the paral- lel HashAgg algo- rithm. This vari- able will be depre- cated

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Controls whether TiDB sup- ports disk spill for the paral- lel HashAgg algo- rithm. When it is ON, disk spill can be trig- gered for the paral- lel HashAgg algo- rithm. This vari- able will be depre- cated

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be SPLIT_FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Shuf- fle is en- abled, the win- dow func- tion pushed down to Ti- Flash can be exe- cuted in par- al- lel. This vari- able con- trols the batch size of the data sent by the sender. The sender will send data

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be SPLIT_FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Shuf- fle is en- abled, the win- dow func- tion pushed down to Ti- Flash can be exe- cuted in par- al- lel. This vari- able con- trols the batch size of the data sent by the sender. The sender will send data

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Shuf- fle is en- abled, the win- dow func- tion pushed down to Ti- Flash can be exe- cuted in par- al- lel. This vari- able con- trols the batch size of the data sent by the sender. The sender will send data

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (parallel �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will be FILE �→ CSV Splits a sin- gle CSV file into mul- tiple smaller chunks of around 256 MiB for paral- lel pro- cess- ing to im- prove im- port effi- ciency. This pa- rame- ter only works for non- compressed Shuf- fle is en- abled, the win- dow func- tion pushed down to Ti- Flash can be exe- cuted in par- al- lel. This vari- able con- trols the batch size of the data sent by the sender. The sender will send data

TiDB Light- ning auto- mati- cally exits with an error if the tar- get table is not empty. If paral- lel im- port mode is en- abled (incremental �→ - �→ import �→ �→ = �→ �→ true �→ ), this check item will Shuf- fle is en- abled, the win- dow func- tion pushed down to Ti- Flash can be exe- cuted in par- al- lel. This vari- able con- trols the batch size of the data sent by the sender. The sender will send data