Examples with SqlExprToRexConverter org.apache.flink.table.planner.calcite.SqlExprToRexConverter used on opensource projects

Example 1 with SqlExprToRexConverter

use of org.apache.flink.table.planner.calcite.SqlExprToRexConverter in project flink by apache.

the class ParserImpl method parseSqlExpression.

@Override
public ResolvedExpression parseSqlExpression(String sqlExpression, RowType inputRowType, @Nullable LogicalType outputType) {
    final SqlExprToRexConverter sqlExprToRexConverter = sqlExprToRexConverterFactory.create(inputRowType, outputType);
    final RexNode rexNode = sqlExprToRexConverter.convertToRexNode(sqlExpression);
    final LogicalType logicalType = FlinkTypeFactory.toLogicalType(rexNode.getType());
    // expand expression for serializable expression strings similar to views
    final String sqlExpressionExpanded = sqlExprToRexConverter.expand(sqlExpression);
    return new RexNodeExpression(rexNode, TypeConversions.fromLogicalToDataType(logicalType), sqlExpression, sqlExpressionExpanded);
}