spark-instrumented-optimizer/sql/hive
Max Gekk f8bf72ed5d [SPARK-34213][SQL] Refresh cached data of v1 table in LOAD DATA
### What changes were proposed in this pull request?
Invoke `CatalogImpl.refreshTable()` instead of `SessionCatalog.refreshTable` in v1 implementation of the `LOAD DATA` command. `SessionCatalog.refreshTable` just refreshes metadata comparing to `CatalogImpl.refreshTable()` which refreshes cached table data as well.

### Why are the changes needed?
The example below portraits the issue:

- Create a source table:
```sql
spark-sql> CREATE TABLE src_tbl (c0 int, part int) USING hive PARTITIONED BY (part);
spark-sql> INSERT INTO src_tbl PARTITION (part=0) SELECT 0;
spark-sql> SHOW TABLE EXTENDED LIKE 'src_tbl' PARTITION (part=0);
default	src_tbl	false	Partition Values: [part=0]
Location: file:/Users/maximgekk/proj/load-data-refresh-cache/spark-warehouse/src_tbl/part=0
...
```
- Load data from the source table to a cached destination table:
```sql
spark-sql> CREATE TABLE dst_tbl (c0 int, part int) USING hive PARTITIONED BY (part);
spark-sql> INSERT INTO dst_tbl PARTITION (part=1) SELECT 1;
spark-sql> CACHE TABLE dst_tbl;
spark-sql> SELECT * FROM dst_tbl;
1	1
spark-sql> LOAD DATA LOCAL INPATH '/Users/maximgekk/proj/load-data-refresh-cache/spark-warehouse/src_tbl/part=0' INTO TABLE dst_tbl PARTITION (part=0);
spark-sql> SELECT * FROM dst_tbl;
1	1
```
The last query does not return new loaded data.

### Does this PR introduce _any_ user-facing change?
Yes. After the changes, the example above works correctly:
```sql
spark-sql> LOAD DATA LOCAL INPATH '/Users/maximgekk/proj/load-data-refresh-cache/spark-warehouse/src_tbl/part=0' INTO TABLE dst_tbl PARTITION (part=0);
spark-sql> SELECT * FROM dst_tbl;
0	0
1	1
```

### How was this patch tested?
Added new test to `org.apache.spark.sql.hive.CachedTableSuite`:
```
$ build/sbt -Phive -Phive-thriftserver "test:testOnly *CachedTableSuite"
```

Closes #31304 from MaxGekk/load-data-refresh-cache.

Authored-by: Max Gekk <max.gekk@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2021-01-23 15:49:10 -08:00
..
benchmarks [SPARK-20202][BUILD][SQL] Remove references to org.spark-project.hive (Hive 1.2.1) 2020-10-05 15:29:56 -07:00
compatibility/src/test/scala/org/apache/spark/sql/hive/execution [SPARK-33428][SQL] Conv UDF use BigInt to avoid Long value overflow 2020-12-14 14:32:08 +00:00
src [SPARK-34213][SQL] Refresh cached data of v1 table in LOAD DATA 2021-01-23 15:49:10 -08:00
pom.xml [SPARK-27733][CORE] Upgrade Avro to version 1.10.1 2021-01-20 15:42:27 -08:00