Package com.facebook.presto.sql.tree

Examples of com.facebook.presto.sql.tree.Cast

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                Expression rewrittenExpression = treeRewriter.defaultRewrite(node, context);

                // cast expression if coercion is registered
                Type coercion = analysis.getCoercion(node);
                if (coercion != null) {
                    rewrittenExpression = new Cast(rewrittenExpression, coercion.getName());
                }

                return rewrittenExpression;
            }
        }, parsedExpression);
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        public Object visitCast(Cast node, Object context)
        {
            Object value = process(node.getExpression(), context);

            if (value instanceof Expression) {
                return new Cast((Expression) value, node.getType());
            }

            if (value == null) {
                return null;
            }
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            if (!column.isPartitionKey()) {
                continue;
            }
            Expression key = equal(nameReference("partition_key"), new StringLiteral(column.getName()));
            Expression value = caseWhen(key, nameReference("partition_value"));
            value = new Cast(value, Type.fromRaw(column.getType()).getName());
            Expression function = functionCall("max", value);
            selectList.add(new SingleColumn(function, column.getName()));
            wrappedList.add(unaliasedName(column.getName()));
        }
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        assertCast("foo");
    }

    public static void assertCast(String type)
    {
        assertExpression("cast(123 as " + type + ")", new Cast(new LongLiteral("123"), type));
    }
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        assertCast("foo");
    }

    public void assertCast(String type)
    {
        assertExpression("cast(123 as " + type + ")", new Cast(new LongLiteral("123"), type));
    }
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        public Object visitCast(Cast node, Object context)
        {
            Object value = process(node.getExpression(), context);

            if (value instanceof Expression) {
                return new Cast((Expression) value, node.getType());
            }

            if (value == null) {
                return null;
            }
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                Expression rewrittenExpression = treeRewriter.defaultRewrite(node, context);

                // cast expression if coercion is registered
                Type coercion = analysis.getCoercion(node);
                if (coercion != null) {
                    rewrittenExpression = new Cast(rewrittenExpression, coercion.getName());
                }

                return rewrittenExpression;
            }
        }, parsedExpression);
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            if (!column.isPartitionKey()) {
                continue;
            }
            Expression key = equal(nameReference("partition_key"), new StringLiteral(column.getName()));
            Expression value = caseWhen(key, nameReference("partition_value"));
            value = new Cast(value, Type.fromRaw(column.getType()).getName());
            Expression function = functionCall("max", value);
            selectList.add(new SingleColumn(function, column.getName()));
            wrappedList.add(unaliasedName(column.getName()));
        }
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            if (!column.isPartitionKey()) {
                continue;
            }
            Expression key = equal(nameReference("partition_key"), new StringLiteral(column.getName()));
            Expression value = caseWhen(key, nameReference("partition_value"));
            value = new Cast(value, Type.fromRaw(column.getType()).getName());
            Expression function = functionCall("max", value);
            selectList.add(new SingleColumn(function, column.getName()));
            wrappedList.add(unaliasedName(column.getName()));
        }
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            if (!column.isPartitionKey()) {
                continue;
            }
            Expression key = equal(nameReference("partition_key"), new StringLiteral(column.getName()));
            Expression value = caseWhen(key, nameReference("partition_value"));
            value = new Cast(value, Type.fromRaw(column.getType()).getName());
            Expression function = functionCall("max", value);
            selectList.add(new SingleColumn(function, column.getName()));
            wrappedList.add(unaliasedName(column.getName()));
        }
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Related Classes of com.facebook.presto.sql.tree.Cast

  • com.facebook.presto.operator.scalar.FunctionAssertions
  • com.facebook.presto.sql.analyzer.StatementAnalyzer
  • com.facebook.presto.sql.parser.TestSqlParser
  • com.facebook.presto.sql.planner.ExpressionInterpreter$Visitor
  • com.facebook.presto.sql.planner.LiteralInterpreter
  • com.facebook.presto.sql.planner.QueryPlanner
  • com.facebook.presto.sql.planner.TranslationMap
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