THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Status
Current state: ["Under Discussion"]
Discussion thread: here (<- link to https://mail-archives.apache.org/mod_mbox/flink-dev/)
JIRA: here (<- link to https://issues.apache.org/jira/browse/FLINK-XXXX)
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Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).
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Flink-ClickHouse Metaspace Mapping
Flink Catalog Metaspace Structure | ClickHouse Metaspace Structure |
catalog name (defined in Flink only) | n/a |
database name | database name |
table name | table name |
Flink-ClickHouse Data Type Mapping
| Flink Type | ClickHouse Type |
|---|---|
| CHAR | String |
| VARCHAR | String / UUID / IP |
| STRING | String / Enum |
| BOOLEAN | UInt8 |
| BYTES | FixedString |
| TINYINT | Int8 |
| SMALLINT | Int16 / UInt8 |
| INTEGER | Int32 / UInt16 / Interval |
| BIGINT | Int64 / UInt32 |
| FLOAT | Float32 |
| DOUBLE | Float64 |
| DECIMAL | Decimal / Int128 / Int256 / UInt64 / UInt128 / UInt256 |
| DATE | Date |
| TIME | DateTime |
| TIMESTAMP | DateTime |
| TIMESTAMP_LTZ | DateTime |
| INTERVAL_YEAR_MONTH | Int32 |
| INTERVAL_DAY_TIME | Int64 |
| ARRAY | Array |
| MAP | Map |
| ROW | |
| MULTISET | |
| RAW |
Compatibility, Deprecation, and Migration Plan
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