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Nemon Lou commented on HIVE-14143: ---------------------------------- Agreed. As describe in TableScanDesc.java {code} // Both neededColumnIDs and neededColumns should never be null. // When neededColumnIDs is an empty list, // it means no needed column (e.g. we do not need any column to evaluate // SELECT count(*) FROM t). private List<Integer> neededColumnIDs; {code} I must has been misleading by the following code in HiveInputFormat.java: {code} private void pushProjection(final JobConf newjob, final StringBuilder readColumnsBuffer, final StringBuilder readColumnNamesBuffer) { String readColIds = readColumnsBuffer.toString(); String readColNames = readColumnNamesBuffer.toString(); boolean readAllColumns = readColIds.isEmpty() ? true : false; newjob.setBoolean(ColumnProjectionUtils.READ_ALL_COLUMNS, readAllColumns); ... } {code} The solution is not clear for me . Any suggestions? > RawDataSize of RCFile is zero after analyze > -------------------------------------------- > > Key: HIVE-14143 > URL: https://issues.apache.org/jira/browse/HIVE-14143 > Project: Hive > Issue Type: Bug > Components: Statistics > Affects Versions: 1.2.1, 2.1.0 > Reporter: Nemon Lou > Assignee: Nemon Lou > Priority: Minor > Attachments: HIVE-14143.patch > > > After running the following analyze command ,rawDataSize becomes zero for > rcfile tables. > {noformat} > analyze table RCFILE_TABLE compute statistics ; > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)