nzw921rx opened a new pull request, #11062:
URL: https://github.com/apache/seatunnel/pull/11062
## Purpose of this pull request
Closes #11061
Add a new SQL transform plugin powered by Apache Calcite, providing standard
SQL capabilities (SELECT, WHERE, CASE WHEN, built-in functions, JSON
extraction, etc.) for data transformation. Key components:
- **Calcite Engine**: `CalciteSQLEngine` compiles SQL once at startup and
executes per-row at runtime, with bidirectional SeaTunnel-Calcite type mapping.
- **Shaded Dependency**: `seatunnel-calcite` module shading Calcite 1.38.0
under `org.apache.seatunnel.shade.*`.
- **UDF System**: `CalciteUdf` SPI for custom UDFs + `ZetaUdfBridge` for
reusing existing ZetaUDF jars. Built-in UDFs: MASK, MASK_HASH, DES_ENCRYPT,
DES_DECRYPT, URL_ENCODE, URL_DECODE.
- **Multi-table CDC**: Per-table SQL overrides, regex table matching,
automatic plan rebuild on schema changes.
## Does this PR introduce any user-facing change?
Yes. Adds a new `Calcite` transform plugin. Example usage:
```hocon
transform {
Calcite {
plugin_input = "source_table"
plugin_output = "result"
sql = "SELECT id, UPPER(name) AS name, MASK(phone, 3, 7, '*') AS phone
FROM source_table WHERE age >= 18"
}
}
```
Full documentation added in `docs/en/transforms/calcite.md` and
`docs/zh/transforms/calcite.md`.
## How was this patch tested?
```bash
#UT
./mvnw test -pl seatunnel-transforms-v2
#IT
./mvnw -DskipUT -DskipIT=false verify -pl
seatunnel-e2e/seatunnel-transforms-v2-e2e/seatunnel-transforms-v2-e2e-part-2
```
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