Prasanth J created HIVE-5272:
--------------------------------
Summary: Column statistics on a invalid column name results in
IndexOutOfBoundsException
Key: HIVE-5272
URL: https://issues.apache.org/jira/browse/HIVE-5272
Project: Hive
Issue Type: Bug
Components: Statistics
Affects Versions: 0.13.0
Reporter: Prasanth J
Assignee: Prasanth J
Fix For: 0.13.0
When invalid column name is specified for column statistics
IndexOutOfBoundsException is thrown.
{code}hive> analyze table customer_staging compute statistics for columns
c_first_name, invalid_name, c_customer_sk;
FAILED: IndexOutOfBoundsException Index: 2, Size: 1{code}
If the invalid column name appears at first or last then
INVALID_COLUMN_REFERENCE is thrown at query planning stage. But if the invalid
column name appears somewhere in the middle of column lists then
IndexOutOfBoundsException is thrown at semantic analysis step. The problem is
with getTableColumnType() and getPartitionColumnType() methods. The following
segment
{code} for (int i=0; i <numCols; i++) {
colName = colNames.get(i);
for (FieldSchema col: cols) {
if (colName.equalsIgnoreCase(col.getName())) {
colTypes.add(i, new String(col.getType()));
}
}
}{code}
is the reason for it. If the invalid column names appears in the middle of
column list then the equalsIgnoreCase() skips the invalid name and increments
the i. Since the list is not initialized it results in exception.
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