Discover all the databases in the ClickHouse database.

Discover all the schemas in the ClickHouse database. Note: ClickHouse doesn't have schemas like PostgreSQL, so this returns a default schema name.

Discover all the tables in the ClickHouse database when the list of tables is not known. ALWAYS use this tool before any other tool that requires a table name.

You have a connection to a ClickHouse database. Execute a SELECT query and return the results against the ClickHouse database. No other queries (INSERT, UPDATE, DELETE, etc.) are allowed. ONLY use this tool if you have already loaded the schema of the tables you need to query. Use the <GetTableSchema> tool to load the schema if not already known. The final query will be constructed as follows: SELECT {select_query_part} FROM {from_clause} JOIN {join_clause} WHERE {where_clause} HAVING {having_clause} ORDER BY {order_by_clause} LIMIT {limit} OFFSET {offset} When running queries, follow these rules which will help avoid errors: * Never "select *" from a table. Always select the columns you need. * Always order your results by the most important columns first. If you aren't sure, order by the primary key. * Always use case-insensitive queries to match strings in the query. * Always trim strings in the query. * Prefer LIKE queries over direct string matches or regex queries. * Only join on columns that are indexed or the primary key. Do not join on arbitrary columns. * ClickHouse is case-sensitive, so be careful with table and column names.

Get the schema/structure of a ClickHouse table in the ClickHouse database when the schema is not known, and the name of the table is provided. This tool should ALWAYS be used before executing any query. All tables in the query must be discovered first using the <DiscoverTables> tool.