itxiangkui created CALCITE-5068:
-----------------------------------
Summary: There are some problems with the use of catalog
Key: CALCITE-5068
URL: https://issues.apache.org/jira/browse/CALCITE-5068
Project: Calcite
Issue Type: Bug
Reporter: itxiangkui
when i use under sqlline
````shell
!schema
!tables
!metadata getSchemas
````
When I wait for the command, I find that the catalog seems to be a wrong meta
information, and it is always empty, even after I call connection.setCatalog().
Looking at the source code, found org.apache.calcite.jdbc.CalciteMetaImpl's
```java
Enumerable<MetaSchema> schemas(final String catalog) {
return Linq4j.asEnumerable(
getConnection().rootSchema.getSubSchemaMap().values())
.select((Function1<CalciteSchema, MetaSchema>) calciteSchema ->
new CalciteMetaSchema(calciteSchema, catalog,
calciteSchema.getName()))
.orderBy((Function1<MetaSchema, Comparable>) metaSchema ->
(Comparable) FlatLists.of(Util.first(metaSchema.tableCatalog, ""),
metaSchema.tableSchem));
}
```
Obviously, the parameters of the catalog are not used for filtering, and there
is no context information of the catalog in the rootSchema. The catalog is
directly passed to the CalciteMetaSchema object.
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