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  1. Spark
  2. SPARK-33507 Improve and fix cache behavior in v1 and v2
  3. SPARK-34027

ALTER TABLE .. RECOVER PARTITIONS doesn't refresh cache

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.0.1, 3.1.0, 3.2.0
    • 3.0.2, 3.1.1, 3.2.0
    • SQL

    Description

      Here is the example to reproduce the issue:

      spark-sql> create table tbl (col int, part int) using parquet partitioned by (part);
spark-sql> insert into tbl partition (part=0) select 0;
spark-sql> cache table tbl;
spark-sql> select * from tbl;
0	0
spark-sql> show table extended like 'tbl' partition(part=0);
default	tbl	false	Partition Values: [part=0]
Location: file:/Users/maximgekk/proj/recover-partitions-refresh-cache/spark-warehouse/tbl/part=0
...

      Add new partition by copying the existing one:

      cp -r /Users/maximgekk/proj/recover-partitions-refresh-cache/spark-warehouse/tbl/part=0 /Users/maximgekk/proj/recover-partitions-refresh-cache/spark-warehouse/tbl/part=1

       Recover and select the table:

      spark-sql> alter table tbl recover partitions;
spark-sql> select * from tbl;
0	0

      We see only old data.

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            maxgekk Max Gekk
            maxgekk Max Gekk
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              Updated:
              Resolved: