Examples with SqlNodeList org.apache.calcite.sql.SqlNodeList used on opensource projects

Example 56 with SqlNodeList

use of org.apache.calcite.sql.SqlNodeList in project hive by apache.

the class HiveJdbcImplementor method visit.

@Override
public Result visit(Project e) {
    // This variant keeps the column aliases instead of producing STAR
    Result x = visitInput(e, 0, Clause.SELECT);
    parseCorrelTable(e, x);
    final Builder builder = x.builder(e);
    final List<SqlNode> selectList = new ArrayList<>();
    for (RexNode ref : e.getProjects()) {
        SqlNode sqlExpr = builder.context.toSql(null, ref);
        addSelect(selectList, sqlExpr, e.getRowType());
    }
    builder.setSelect(new SqlNodeList(selectList, POS));
    return builder.result();
}

Example 57 with SqlNodeList

use of org.apache.calcite.sql.SqlNodeList in project druid by alibaba.

the class MySqlParameterizedOutputVisitorTest_47_hints method test_headHint_2.

public void test_headHint_2() throws Exception {
    String sql = "/*TDDL : construct()*/ select /*TDDL : add_ms(sort=t.pk, asc=true) add_agg(agg=\"SUM\", group=\"pk\", column=\"c\") add_pj(c=\"c\") add_ts(c, true) */ pk, count(*) c from tb1 where id in(1,2,3,4) group by pk order by pk";
    MySqlStatementParser parser = new MySqlStatementParser(sql, SQLParserFeature.TDDLHint);
    List<SQLStatement> statementList = parser.parseStatementList();
    SQLStatement statemen = statementList.get(0);
    CalciteMySqlNodeVisitor visitor = new CalciteMySqlNodeVisitor();
    statemen.accept(visitor);
    SqlNode sqlNode = visitor.getSqlNode();
    System.out.println(sqlNode);
    SqlNodeList hints = ((TDDLSqlSelect) sqlNode).getHints();
    Assert.assertEquals(hints.size(), 1);
    Assert.assertEquals(((SqlNodeList) hints.get(0)).size(), 4);
    SqlNodeList headHints = ((TDDLSqlSelect) sqlNode).getHeadHints();
    Assert.assertEquals(headHints.size(), 1);
    Assert.assertEquals(((SqlNodeList) headHints.get(0)).size(), 1);
}

Example 58 with SqlNodeList

use of org.apache.calcite.sql.SqlNodeList in project drill by axbaretto.

the class DescribeTableHandler method rewrite.

/**
 * Rewrite the parse tree as SELECT ... FROM INFORMATION_SCHEMA.COLUMNS ...
 */
@Override
public SqlNode rewrite(SqlNode sqlNode) throws RelConversionException, ForemanSetupException {
    DrillSqlDescribeTable node = unwrap(sqlNode, DrillSqlDescribeTable.class);
    try {
        List<SqlNode> selectList = ImmutableList.of((SqlNode) new SqlIdentifier(COLS_COL_COLUMN_NAME, SqlParserPos.ZERO), new SqlIdentifier(COLS_COL_DATA_TYPE, SqlParserPos.ZERO), new SqlIdentifier(COLS_COL_IS_NULLABLE, SqlParserPos.ZERO));
        SqlNode fromClause = new SqlIdentifier(ImmutableList.of(IS_SCHEMA_NAME, TAB_COLUMNS), null, SqlParserPos.ZERO, null);
        final SqlIdentifier table = node.getTable();
        final SchemaPlus defaultSchema = config.getConverter().getDefaultSchema();
        final List<String> schemaPathGivenInCmd = Util.skipLast(table.names);
        final SchemaPlus schema = SchemaUtilites.findSchema(defaultSchema, schemaPathGivenInCmd);
        final String charset = Util.getDefaultCharset().name();
        if (schema == null) {
            SchemaUtilites.throwSchemaNotFoundException(defaultSchema, SchemaUtilites.SCHEMA_PATH_JOINER.join(schemaPathGivenInCmd));
        }
        if (SchemaUtilites.isRootSchema(schema)) {
            throw UserException.validationError().message("No schema selected.").build(logger);
        }
        final String tableName = Util.last(table.names);
        // find resolved schema path
        final String schemaPath = SchemaUtilites.unwrapAsDrillSchemaInstance(schema).getFullSchemaName();
        if (schema.getTable(tableName) == null) {
            throw UserException.validationError().message("Unknown table [%s] in schema [%s]", tableName, schemaPath).build(logger);
        }
        SqlNode schemaCondition = null;
        if (!SchemaUtilites.isRootSchema(schema)) {
            schemaCondition = DrillParserUtil.createCondition(new SqlIdentifier(SHRD_COL_TABLE_SCHEMA, SqlParserPos.ZERO), SqlStdOperatorTable.EQUALS, SqlLiteral.createCharString(schemaPath, charset, SqlParserPos.ZERO));
        }
        SqlNode where = DrillParserUtil.createCondition(new SqlIdentifier(SHRD_COL_TABLE_NAME, SqlParserPos.ZERO), SqlStdOperatorTable.EQUALS, SqlLiteral.createCharString(tableName, charset, SqlParserPos.ZERO));
        where = DrillParserUtil.createCondition(schemaCondition, SqlStdOperatorTable.AND, where);
        SqlNode columnFilter = null;
        if (node.getColumn() != null) {
            columnFilter = DrillParserUtil.createCondition(new SqlIdentifier(COLS_COL_COLUMN_NAME, SqlParserPos.ZERO), SqlStdOperatorTable.EQUALS, SqlLiteral.createCharString(node.getColumn().toString(), charset, SqlParserPos.ZERO));
        } else if (node.getColumnQualifier() != null) {
            columnFilter = DrillParserUtil.createCondition(new SqlIdentifier(COLS_COL_COLUMN_NAME, SqlParserPos.ZERO), SqlStdOperatorTable.LIKE, node.getColumnQualifier());
        }
        where = DrillParserUtil.createCondition(where, SqlStdOperatorTable.AND, columnFilter);
        return new SqlSelect(SqlParserPos.ZERO, null, new SqlNodeList(selectList, SqlParserPos.ZERO), fromClause, where, null, null, null, null, null, null);
    } catch (Exception ex) {
        throw UserException.planError(ex).message("Error while rewriting DESCRIBE query: %d", ex.getMessage()).build(logger);
    }
}

Example 59 with SqlNodeList

use of org.apache.calcite.sql.SqlNodeList in project hazelcast by hazelcast.

the class ParserNameResolutionTest method checkSuccess.

private static void checkSuccess(OptimizerContext context, String fieldName, String tableFqn, String... tableComponents) {
    QueryParseResult res = context.parse(composeSelect(fieldName, tableComponents));
    SqlSelect select = (SqlSelect) res.getNode();
    SqlNodeList selectList = select.getSelectList();
    assertEquals(1, selectList.size());
    SqlIdentifier fieldIdentifier = (SqlIdentifier) selectList.get(0);
    assertEquals(SqlIdentifier.getString(Arrays.asList(last(tableComponents), fieldName)), fieldIdentifier.toString());
    SqlCall from = (SqlCall) select.getFrom();
    assertEquals(from.getKind(), SqlKind.AS);
    assertEquals(tableFqn, from.operand(0).toString());
    assertEquals(last(tableComponents), from.operand(1).toString());
}

Example 60 with SqlNodeList

use of org.apache.calcite.sql.SqlNodeList in project hazelcast by hazelcast.

the class HazelcastSqlToRelConverter method constructComparisons.

/**
 * Constructs comparisons between
 * left-hand operand (as a rule, SqlIdentifier) and right-hand list.
 */
private List<RexNode> constructComparisons(Blackboard bb, List<RexNode> leftKeys, SqlNodeList valuesList) {
    final List<RexNode> comparisons = new ArrayList<>();
    for (SqlNode rightValues : valuesList) {
        RexNode rexComparison;
        final SqlOperator comparisonOp = SqlStdOperatorTable.EQUALS;
        if (leftKeys.size() == 1) {
            rexComparison = rexBuilder.makeCall(comparisonOp, leftKeys.get(0), ensureSqlType(leftKeys.get(0).getType(), bb.convertExpression(rightValues)));
        } else {
            assert rightValues instanceof SqlCall;
            final SqlBasicCall basicCall = (SqlBasicCall) rightValues;
            assert basicCall.getOperator() instanceof SqlRowOperator && basicCall.operandCount() == leftKeys.size();
            rexComparison = RexUtil.composeConjunction(rexBuilder, Pair.zip(leftKeys, basicCall.getOperandList()).stream().map(pair -> rexBuilder.makeCall(comparisonOp, pair.left, ensureSqlType(pair.left.getType(), bb.convertExpression(pair.right)))).collect(Collectors.toList()));
        }
        comparisons.add(rexComparison);
    }
    return comparisons;
}