Davit Mnatobishvili

Error running DDL Query - when trying to create a new ReplicatedReplacingMergeTree table

3

When creating tables with statements from https://github.com/Altinity/clickhouse-sink-connector/blob/develop/sink-connector-lightweight/sql/init_mysql.sql file in MySQL, the tables with the data seem to be correctly replicated in ClickHouse but when trying to create a new table...

Partitions for some MySQL tables are not migrated to ClickHouse

4

When creating a table in MySQL with the following structure, in some cases it seems that the partition is not migrated to the ClickHouse. For example if we create a...

CHANGE COLUMN is not replicated in ClickHouse when we have multiple databases

1

When trying to do MySQL to ClickHouse replication when we monitor all MySQL databases via removing `database.include.list` configuration and trying to perform `ALTER TABLE ... CHANGE COLUMN` the changes do...

Analyzer: DB::Exception: Received from localhost:9000. DB::Exception: Query tree is too big.

4

Starting from ClickHouse 24.3, given that `experimental_analyzer` is on by default I started to get the following error: ``` Code: 36. DB::Exception: Received from localhost:9000. DB::Exception: Query tree is too...

When using the configuration value `single.threaded` and setting it to `true` without enclosing the boolean value in quotation marks the sink connector exits with code 255: ``` clickhouse-sink-connector-lt-1 | 2024-08-26T15:19:35.455160360Z...

Include bloom filter statistics when reading parquet metadata with ClickHouse

1

## Describe the new feature We need a way to determine if the bloom filter is applied or not on a parquet file when inspecting the parquet metadata with ClickHouse...

There seem to be instances in which the automatic table replication from a MySQL database to ClickHouse does not work, and the JDBC logs show an error indicating that the...

## Describe the new feature Currently, to cache metadata, we need to read the Parquet file once after writing it to object storage. Instead of reading the file after writing,...

## Describe the new feature Currently, we lose all cached data when the server restarts, which impacts performance and requires recalculating or refetching data. To improve reliability and efficiency, we...

## Describe the new feature Currently if we have cached the metadata of a Parquet file that is stored on the object storage and after that we move the file...