[jira] [Resolved] (HAWQ-1167) Parquet format table estimate column width meets error for bpchar type

["hongwu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HAWQ-1167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

hongwu resolved HAWQ-1167.
--------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.1.0-incubating

> Parquet format table estimate column width meets error for bpchar type
> ----------------------------------------------------------------------
>
>                 Key: HAWQ-1167
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1167
>             Project: Apache HAWQ
>          Issue Type: Bug
>          Components: Storage
>            Reporter: Lili Ma
>            Assignee: hongwu
>             Fix For: 2.0.1.0-incubating
>
>
> In function estimateColumnWidth, the atttypmod attribute for type bpchar may be -1, and will provide wrong value to columnWidths. Should estimate a valid length for any type.
> {code}
> 		case HAWQ_TYPE_BPCHAR:
> 			/* for char(n), atttypmod is n + 4 */
> 			Assert(att->atttypmod > 4);
> 			columnWidths[(*colidx)++] = att->atttypmod;
> {code}
> Reproduce type:
> 1. create table A(a int, b bpchar);
> 2. select oid from pg_class where relname='a';
> 3. select attname, atttypmod from pg_attribute where attrelid=$oid
> will see the atttypmod is -1, thus will bring error.



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