zheniantoushipashi opened a new pull request, #37427: URL: https://github.com/apache/spark/pull/37427
**What changes were proposed in this pull request?** support more commonly used string functions BIT_LENGTH CHAR_LENGTH CONCAT The mainstream databases support these functions show below. Function | PostgreSQL | ClickHouse | H2 | MySQL | Oracle | Redshift | Presto | Teradata | Snowflake | DB2 | Vertica | Exasol | SqlServer | Yellowbrick | Impala | Mariadb | Druid | Pig | SQLite | Influxdata | Singlestore | ElasticSearch -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- BIT_LENGTH | Yes | Yes | Yes | Yes | Yes | no | no | no | no | Yes | Yes | Yes | no | Yes | no | Yes | no | no | no | no | no | Yes CHAR_LENGTH | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | no | Yes | Yes | Yes | Yes CONCAT | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | no | no | no | Yes | Yes **Why are the changes needed?** DS V2 supports push down string functions **Does this PR introduce any user-facing change?** 'No'. New feature. How was this patch tested? New tests. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
