Examples with TableReferenceExpression org.apache.flink.table.expressions.TableReferenceExpression used on opensource projects

Example 1 with TableReferenceExpression

use of org.apache.flink.table.expressions.TableReferenceExpression in project flink by apache.

the class InConverter method convert.

@Override
public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) {
    checkArgument(call, call.getChildren().size() > 1);
    Expression headExpr = call.getChildren().get(1);
    if (headExpr instanceof TableReferenceExpression) {
        QueryOperation tableOperation = ((TableReferenceExpression) headExpr).getQueryOperation();
        RexNode child = context.toRexNode(call.getChildren().get(0));
        return RexSubQuery.in(((FlinkRelBuilder) context.getRelBuilder()).queryOperation(tableOperation).build(), ImmutableList.of(child));
    } else {
        List<RexNode> child = toRexNodes(context, call.getChildren());
        return context.getRelBuilder().getRexBuilder().makeIn(child.get(0), child.subList(1, child.size()));
    }
}