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[SPARK-13656][SQL] Delete spark.sql.parquet.cacheMetadata from SQLConf and docs #19129

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[SPARK-13656][SQL] Delete spark.sql.parquet.cacheMetadata from SQLConf and docs #19129

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[SPARK-13656][SQL] Delete spark.sql.parquet.cacheMetadata from SQLCon…
dongjoon-hyun Sep 5, 2017
40ed9ff
Add to migraion guide
dongjoon-hyun Sep 7, 2017
8e3d8fe
Fix JIRA pointer.
dongjoon-hyun Sep 7, 2017
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10 changes: 3 additions & 7 deletions docs/sql-programming-guide.md
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Original file line number Diff line number Diff line change
Expand Up @@ -924,13 +924,6 @@ Configuration of Parquet can be done using the `setConf` method on `SparkSession
flag tells Spark SQL to interpret INT96 data as a timestamp to provide compatibility with these systems.
</td>
</tr>
<tr>
<td><code>spark.sql.parquet.cacheMetadata</code></td>
<td>true</td>
<td>
Turns on caching of Parquet schema metadata. Can speed up querying of static data.
</td>
</tr>
<tr>
<td><code>spark.sql.parquet.compression.codec</code></td>
<td>snappy</td>
Expand Down Expand Up @@ -1587,6 +1580,9 @@ options.
Note that this is different from the Hive behavior.
- As a result, `DROP TABLE` statements on those tables will not remove the data.

- `spark.sql.parquet.cacheMetadata` is no longer used.
See [SPARK-13664](https://issues.apache.org/jira/browse/SPARK-13664) for details.

## Upgrading From Spark SQL 1.5 to 1.6

- From Spark 1.6, by default the Thrift server runs in multi-session mode. Which means each JDBC/ODBC
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7 changes: 0 additions & 7 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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Expand Up @@ -284,11 +284,6 @@ object SQLConf {
.booleanConf
.createWithDefault(false)

val PARQUET_CACHE_METADATA = buildConf("spark.sql.parquet.cacheMetadata")
.doc("Turns on caching of Parquet schema metadata. Can speed up querying of static data.")
.booleanConf
.createWithDefault(true)

val PARQUET_COMPRESSION = buildConf("spark.sql.parquet.compression.codec")
.doc("Sets the compression codec use when writing Parquet files. Acceptable values include: " +
"uncompressed, snappy, gzip, lzo.")
Expand Down Expand Up @@ -1010,8 +1005,6 @@ class SQLConf extends Serializable with Logging {

def parquetCompressionCodec: String = getConf(PARQUET_COMPRESSION)

def parquetCacheMetadata: Boolean = getConf(PARQUET_CACHE_METADATA)

def parquetVectorizedReaderEnabled: Boolean = getConf(PARQUET_VECTORIZED_READER_ENABLED)

def columnBatchSize: Int = getConf(COLUMN_BATCH_SIZE)
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