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https://issues.apache.org/jira/browse/GEODE-6431?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jianxia Chen updated GEODE-6431:
--------------------------------
Description:
From the {{DatabaseMetaData.getTables(String catalog, String schemaPattern,
String tableNamePattern, String[] types)}} Javadoc:
https://docs.oracle.com/javase/7/docs/api/java/sql/DatabaseMetaData.html#getTables(java.lang.String,%20java.lang.String,%20java.lang.String,%20java.lang.String[])
"retrieves those without a catalog; null means that the catalog name should not
be used to narrow the search"
>From the {{DatabaseMetaData.getSchemas(String catalog, String schemaPattern)}}
>javadoc:
[https://docs.oracle.com/javase/7/docs/api/java/sql/DatabaseMetaData.html#getSchemas(java.lang.String,%20java.lang.String])
{{catalog - a catalog name; must match the catalog name as it is stored in the
database;"" retrieves those without a catalog; null means catalog name should
not be used to narrow down the search.}}
For example, for MySQL, if using empty string as default value for catalog and
schema, {{DatabaseMetaData.getTables(String catalog, String schemaPattern,
String tableNamePattern, String[] types)}} cannot return the expected table.
Compared to ""(empty string), {{NULL}} is a better default value for catalog
and schema.
was:
>From the Javadoc
>[https://docs.oracle.com/javase/7/docs/api/java/sql/DatabaseMetaData.html#getTables(java.lang.String,%20java.lang.String,%20java.lang.String,%20java.lang.String[]])
"retrieves those without a catalog; null means that the catalog name should not
be used to narrow the search"
>From the {{DatabaseMetaData.getSchemas(String catalog, String schemaPattern)}}
>javadoc:
[https://docs.oracle.com/javase/7/docs/api/java/sql/DatabaseMetaData.html#getSchemas(java.lang.String,%20java.lang.String])
{{catalog - a catalog name; must match the catalog name as it is stored in the
database;"" retrieves those without a catalog; null means catalog name should
not be used to narrow down the search.}}
For example, for MySQL, if using empty string as default value for catalog and
schema, {{DatabaseMetaData.getTables(String catalog, String schemaPattern,
String tableNamePattern, String[] types)}} cannot return the expected table.
Compared to ""(empty string), {{NULL}} is a better default value for catalog
and schema.
> JDBC Connector should use NULL as default catalog and schema instead of empty
> string
> ------------------------------------------------------------------------------------
>
> Key: GEODE-6431
> URL: https://issues.apache.org/jira/browse/GEODE-6431
> Project: Geode
> Issue Type: Bug
> Components: extensions
> Reporter: Jianxia Chen
> Priority: Major
>
>
> From the {{DatabaseMetaData.getTables(String catalog, String schemaPattern,
> String tableNamePattern, String[] types)}} Javadoc:
> https://docs.oracle.com/javase/7/docs/api/java/sql/DatabaseMetaData.html#getTables(java.lang.String,%20java.lang.String,%20java.lang.String,%20java.lang.String[])
> "retrieves those without a catalog; null means that the catalog name should
> not be used to narrow the search"
> From the {{DatabaseMetaData.getSchemas(String catalog, String
> schemaPattern)}} javadoc:
>
> [https://docs.oracle.com/javase/7/docs/api/java/sql/DatabaseMetaData.html#getSchemas(java.lang.String,%20java.lang.String])
> {{catalog - a catalog name; must match the catalog name as it is stored in
> the database;"" retrieves those without a catalog; null means catalog name
> should not be used to narrow down the search.}}
> For example, for MySQL, if using empty string as default value for catalog
> and schema, {{DatabaseMetaData.getTables(String catalog, String
> schemaPattern, String tableNamePattern, String[] types)}} cannot return the
> expected table.
> Compared to ""(empty string), {{NULL}} is a better default value for catalog
> and schema.
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