Felix Mueller

The substring function does not work as expected for custom fields.  In Metabase, the indices seem to be 0-based, whereas ClickHouse [substring function](https://clickhouse.tech/docs/en/sql-reference/functions/string-functions/#substring) expects indices to be 1-based: >...

When filtering on a custom field (via expression), the driver uses the human-readable field name instead of the correct alias. ``` SELECT source.warennummerKN8 AS warennummerKN8, source.`sum-where` AS `sum-where`, source.`sum-where_2` AS...

Metabase should not show the internally used view tables (`.inner.VIEW_NAME`)

Check Behavior for Array, Enum Data Types

1

We should check whether the use of more complicated data types breaks the driver somehow. Candidates: * `Array(String)` * `Array(Array(UInt64))` * `Array(LowCardinality(String))` * `Enum8('foo' = 42, 'bar' = 23)`

Zoom into a pinpoint map > ru.yandex.clickhouse.except.ClickHouseException: ClickHouse exception, code: 43, host: localhost, port: 8123; Code: 43, e.displayText() = DB::Exception: No operation lessOrEquals between Decimal(8, 6) and Float64, e.what() =...

## Motivation In [ClickHouseDatabaseMetaData](https://github.com/ClickHouse/clickhouse-jdbc/blob/30bda80961808e6c7e3b9b24b5a0aa5e74495ef9/clickhouse-jdbc/src/main/java/com/clickhouse/jdbc/ClickHouseDatabaseMetaData.java#L33) we currently differentiate between these table types: DICTIONARY, LOG TABLE, MEMORY TABLE, REMOTE TABLE, TABLE, VIEW, SYSTEM TABLE, TEMPORARY TABLE . - Are these distinctions useful...

Run JDBC Related Tests from Jakarta EE TCK

1

There are some [JDBC related tests](https://github.com/eclipse-ee4j/jakartaee-tck/tree/master/src/com/sun/ts/tests/jdbc) published as part of the [Jakarta EE TCK](https://github.com/eclipse-ee4j/jakartaee-tck). We should try to integrate them in our verification workflow. This is not an easy task,...

Please add some [contributing guidelines](https://help.github.com/articles/setting-guidelines-for-repository-contributors) for this project, including code style. Since the current code styles are different between the contributors, and there are patches with many useless changes in...

Add Units mass-metric-ton, volume-cubic-*

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We applaud the advances in Localization that are now available via the standard API, but the lack of the support for some units our users rely on forces us to...

Application Menu Example Tab Index Broken

2

## Summary In the example implementation of the application menu, using Shift-Tab focuses the first menu item instead of the first previous focusable element outside the application menu. ## Steps...