[
https://issues.apache.org/jira/browse/HIVE-1546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12903746#action_12903746
]
John Sichi commented on HIVE-1546:
----------------------------------
More specifically, for the last suggestion, where we currently have
{noformat}
case HiveParser.TOK_TBLRCFILE:
inputFormat = RCFILE_INPUT;
outputFormat = RCFILE_OUTPUT;
shared.serde = COLUMNAR_SERDE;
storageFormat = true;
{noformat}
instead do
{noformat}
case HiveParser.TOK_TBLRCFILE:
processGenericFileFormat("RCFILE");
break;
case HiveParser.TOK_FILEFORMAT_GENERIC:
processGenericFileFormat(child.getChild(0).getText());
break;
...
void processGenericFileFormat(String formatName) {
Map<String, String> props = handleGenericFileFormat(formatName);
inputFormat = props.get(Constants.FILE_INPUT_FORMAT);
outputFormat = props.get(Constants.FILE_OUTPUT_FORMAT);
shared.serde = props.get(Constants.META_TABLE_SERDE);
...
}
{noformat}
Then in Hive's version of handleGenericFileFormat, make it return the right
info for SEQUENCEFILE/TEXTFILE/RCFILE.
This is just a sketch, not the real code, but I hope it makes sense.
> Ability to plug custom Semantic Analyzers for Hive Grammar
> ----------------------------------------------------------
>
> Key: HIVE-1546
> URL: https://issues.apache.org/jira/browse/HIVE-1546
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Metastore
> Affects Versions: 0.7.0
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Fix For: 0.7.0
>
> Attachments: hive-1546.patch, hive-1546_2.patch
>
>
> It will be useful if Semantic Analysis phase is made pluggable such that
> other projects can do custom analysis of hive queries before doing metastore
> operations on them.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
