andygrove commented on PR #3391:
URL:
https://github.com/apache/datafusion-comet/pull/3391#issuecomment-3848515054
There is a test failure:
```
2026-02-04T16:17:16.3295718Z - replace with empty search string *** FAILED
*** (166 milliseconds)
2026-02-04T16:17:16.3296584Z Results do not match for query:
2026-02-04T16:17:16.3299606Z Timezone:
sun.util.calendar.ZoneInfo[id="America/Los_Angeles",offset=-28800000,dstSavings=3600000,useDaylight=true,transitions=311,lastRule=java.util.SimpleTimeZone[id=America/Los_Angeles,offset=-28800000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=3,startMonth=2,startDay=8,startDayOfWeek=1,startTime=7200000,startTimeMode=0,endMode=3,endMonth=10,endDay=1,endDayOfWeek=1,endTime=7200000,endTimeMode=0]]
2026-02-04T16:17:16.3302580Z Timezone Env:
2026-02-04T16:17:16.3302956Z
2026-02-04T16:17:16.3303402Z == Parsed Logical Plan ==
2026-02-04T16:17:16.3304730Z Project [replace(col#89982, , x) AS
replace(col, , x)#89993, replace(col#89982, , ) AS replace(col, , )#89994]
2026-02-04T16:17:16.3306566Z +- SubqueryAlias spark_catalog.default.test
2026-02-04T16:17:16.3307192Z +- Relation
spark_catalog.default.test[col#89982] parquet
2026-02-04T16:17:16.3307674Z
2026-02-04T16:17:16.3307942Z == Analyzed Logical Plan ==
2026-02-04T16:17:16.3308425Z replace(col, , x): string, replace(col, , ):
string
2026-02-04T16:17:16.3309283Z Project [replace(col#89982, , x) AS
replace(col, , x)#89993, replace(col#89982, , ) AS replace(col, , )#89994]
2026-02-04T16:17:16.3310070Z +- SubqueryAlias spark_catalog.default.test
2026-02-04T16:17:16.3310839Z +- Relation
spark_catalog.default.test[col#89982] parquet
2026-02-04T16:17:16.3311330Z
2026-02-04T16:17:16.3311631Z == Optimized Logical Plan ==
2026-02-04T16:17:16.3312688Z Project [replace(col#89982, , x) AS
replace(col, , x)#89993, replace(col#89982, , ) AS replace(col, , )#89994]
2026-02-04T16:17:16.3313560Z +- Relation
spark_catalog.default.test[col#89982] parquet
2026-02-04T16:17:16.3314032Z
2026-02-04T16:17:16.3314277Z == Physical Plan ==
2026-02-04T16:17:16.3314578Z *(1) CometColumnarToRow
2026-02-04T16:17:16.3315628Z +- CometProject [replace(col, , x)#89993,
replace(col, , )#89994], [replace(col#89982, , x) AS replace(col, , x)#89993,
replace(col#89982, , ) AS replace(col, , )#89994]
2026-02-04T16:17:16.3318449Z +- CometScan [native_iceberg_compat]
parquet spark_catalog.default.test[col#89982] Batched: true, DataFilters: [],
Format: CometParquet, Location: InMemoryFileIndex(1
paths)[file:/__w/datafusion-comet/datafusion-comet/spark/spark-warehouse/test],
PartitionFilters: [], PushedFilters: [], ReadSchema: struct<col:string>
2026-02-04T16:17:16.3320372Z
2026-02-04T16:17:16.3320776Z == Results ==
2026-02-04T16:17:16.3321058Z
2026-02-04T16:17:16.3321294Z == Results ==
2026-02-04T16:17:16.3321798Z !== Correct Answer - 3 ==
== Spark Answer - 3 ==
2026-02-04T16:17:16.3322827Z struct<replace(col, , x):string,replace(col,
, ):string> struct<replace(col, , x):string,replace(col, , ):string>
2026-02-04T16:17:16.3323753Z ![,]
[null,null]
2026-02-04T16:17:16.3324349Z ![hello,hello]
[x,]
2026-02-04T16:17:16.3325067Z ![null,null]
[xhxexlxlxox,hello] (QueryTest.scala:244)
```
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