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https://issues.apache.org/jira/browse/HAWQ-1167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ed Espino resolved HAWQ-1167.
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Resolution: Fixed
> 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: 2.1.0.0-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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