[
https://issues.apache.org/jira/browse/SPARK-44700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
jiahong.li updated SPARK-44700:
-------------------------------
Description:
_SQL_ like below:
```
select tmp.*
from
(select
device_id, ads_id,
from_json(regexp_replace(device_personas, '(?<=(\\\\{|,))"device_',
'"user_device_'), ${device_schema}) as tmp
from input )
${device_schema} has more than 100 fields
```
if Rule: OptimizeCsvJsonExprs been applied, the expression, regexp_replace,
will be invoked many times, that costs so much time.
was:
_SQL_ like below:
```
select tmp.*
from
(select
device_id, ads_id,
from_json(regexp_replace(device_personas, '(?<=(\\\{|,))"device_',
'"user_device_'), ${device_schema}) as tmp
from input )
${device_schema} has more than 100 fields
```
if Rule: OptimizeCsvJsonExprs been applied, the expression, regexp_replace,
will be invoked many times, that costs so much time
> Rule OptimizeCsvJsonExprs should not be applied to expression like
> from_json(regexp_replace)
> --------------------------------------------------------------------------------------------
>
> Key: SPARK-44700
> URL: https://issues.apache.org/jira/browse/SPARK-44700
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.4.0, 3.4.1
> Reporter: jiahong.li
> Priority: Minor
>
> _SQL_ like below:
> ```
> select tmp.*
> from
> (select
> device_id, ads_id,
> from_json(regexp_replace(device_personas, '(?<=(\\\\{|,))"device_',
> '"user_device_'), ${device_schema}) as tmp
> from input )
> ${device_schema} has more than 100 fields
> ```
> if Rule: OptimizeCsvJsonExprs been applied, the expression, regexp_replace,
> will be invoked many times, that costs so much time.
>
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