David Mollitor created HIVE-23038:
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Summary: Suspect Direct SQL Statement Regarding BitVector
Key: HIVE-23038
URL: https://issues.apache.org/jira/browse/HIVE-23038
Project: Hive
Issue Type: Improvement
Components: Standalone Metastore, Statistics
Affects Versions: 3.1.2, 4.0.0
Reporter: David Mollitor
https://github.com/apache/hive/blob/26cc3154c061d2194fba1c3bb156bb7e06e4a6c5/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/MetaStoreDirectSql.java#L1249
The list of things that gets SELECT-ed from the backend database depends on a
flag:
{code:java}
final String queryText0 = "select " + getStatsList(enableBitVector) + "
from " + TAB_COL_STATS
+ " where \"CAT_NAME\" = ? and \"DB_NAME\" = ? and \"TABLE_NAME\" = ?
"
+ " and \"ENGINE\" = ? and \"COLUMN_NAME\" in (";
{code}
However, the same flag is not passed to the Java Marshaling code, so I
sincerely doubt that it is being parsed correctly. How can it know what the
number of columns are?
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