DonnyZone opened a new pull request #1216: [CALCITE-3072] Generate right SQL for FLOOR&SUBSTRING functions in SparkSqlDialect URL: https://github.com/apache/calcite/pull/1216 Rewrite `FLOOR` and `SUBSTRING` functions to generate SparkSql-specific query. `FLOOR->DATE_TRUNC` `SUBSTRING('Hello World' FROM 5) -> SUBSTRING('Hello World', 5) ` `SUBSTRING('Hello World' FROM 5 FOR 1) -> SUBSTRING('Hello World', 5, 1) `
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