[CALCITE-3419] Tools for converting List<RexNode> to SQL expression string

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Implemented
• Component/s: core
• Assignee: Unassigned
• Reporter: jamie12221
• Created: 16/Oct/19 09:54
• Updated: 16/Oct/19 13:25
• Resolved: 16/Oct/19 13:25

Description

'org.apache.calcite.schema.ProjectableFilterableTable' Is a simple tool that can apply filter expressions.On a datasource that uses SQL as a query command, the org.apache.calcite.schema.ProjectableFilterableTable#scan method applies a filter expression, and the filter expression may be converted to SQL. I have not found a way to convert List<RexNode> to SQL. In particular, OR expressions may involve some complicated operations.Is there a better solution?