Examples with SQLDefaultConstraint org.apache.hadoop.hive.metastore.api.SQLDefaultConstraint used on opensource projects

Example 6 with SQLDefaultConstraint

use of org.apache.hadoop.hive.metastore.api.SQLDefaultConstraint in project hive by apache.

the class BaseSemanticAnalyzer method getColumns.

/**
 * Get the list of FieldSchema out of the ASTNode.
 * Additionally, populate the primaryKeys and foreignKeys if any.
 */
public static List<FieldSchema> getColumns(ASTNode ast, boolean lowerCase, TokenRewriteStream tokenRewriteStream, List<SQLPrimaryKey> primaryKeys, List<SQLForeignKey> foreignKeys, List<SQLUniqueConstraint> uniqueConstraints, List<SQLNotNullConstraint> notNullConstraints, List<SQLDefaultConstraint> defaultConstraints, List<SQLCheckConstraint> checkConstraints) throws SemanticException {
    List<FieldSchema> colList = new ArrayList<FieldSchema>();
    Tree parent = ast.getParent();
    for (int i = 0; i < ast.getChildCount(); i++) {
        FieldSchema col = new FieldSchema();
        ASTNode child = (ASTNode) ast.getChild(i);
        switch(child.getToken().getType()) {
            case HiveParser.TOK_UNIQUE:
                {
                    String[] qualifiedTabName = getQualifiedTableName((ASTNode) parent.getChild(0));
                    processUniqueConstraints(qualifiedTabName[0], qualifiedTabName[1], child, uniqueConstraints);
                }
                break;
            case HiveParser.TOK_PRIMARY_KEY:
                {
                    if (!primaryKeys.isEmpty()) {
                        throw new SemanticException(ErrorMsg.INVALID_CONSTRAINT.getMsg("Cannot exist more than one primary key definition for the same table"));
                    }
                    String[] qualifiedTabName = getQualifiedTableName((ASTNode) parent.getChild(0));
                    processPrimaryKeys(qualifiedTabName[0], qualifiedTabName[1], child, primaryKeys);
                }
                break;
            case HiveParser.TOK_FOREIGN_KEY:
                {
                    String[] qualifiedTabName = getQualifiedTableName((ASTNode) parent.getChild(0));
                    processForeignKeys(qualifiedTabName[0], qualifiedTabName[1], child, foreignKeys);
                }
                break;
            default:
                Tree grandChild = child.getChild(0);
                if (grandChild != null) {
                    String name = grandChild.getText();
                    if (lowerCase) {
                        name = name.toLowerCase();
                    }
                    checkColumnName(name);
                    // child 0 is the name of the column
                    col.setName(unescapeIdentifier(name));
                    // child 1 is the type of the column
                    ASTNode typeChild = (ASTNode) (child.getChild(1));
                    col.setType(getTypeStringFromAST(typeChild));
                    // child 2 is the optional comment of the column
                    // child 3 is the optional constraint
                    ASTNode constraintChild = null;
                    if (child.getChildCount() == 4) {
                        col.setComment(unescapeSQLString(child.getChild(2).getText()));
                        constraintChild = (ASTNode) child.getChild(3);
                    } else if (child.getChildCount() == 3 && ((ASTNode) child.getChild(2)).getToken().getType() == HiveParser.StringLiteral) {
                        col.setComment(unescapeSQLString(child.getChild(2).getText()));
                    } else if (child.getChildCount() == 3) {
                        constraintChild = (ASTNode) child.getChild(2);
                    }
                    if (constraintChild != null) {
                        String[] qualifiedTabName = getQualifiedTableName((ASTNode) parent.getChild(0));
                        // Process column constraint
                        switch(constraintChild.getToken().getType()) {
                            case HiveParser.TOK_CHECK_CONSTRAINT:
                                processCheckConstraints(qualifiedTabName[0], qualifiedTabName[1], constraintChild, ImmutableList.of(col.getName()), checkConstraints, typeChild, tokenRewriteStream);
                                break;
                            case HiveParser.TOK_DEFAULT_VALUE:
                                processDefaultConstraints(qualifiedTabName[0], qualifiedTabName[1], constraintChild, ImmutableList.of(col.getName()), defaultConstraints, typeChild);
                                break;
                            case HiveParser.TOK_NOT_NULL:
                                processNotNullConstraints(qualifiedTabName[0], qualifiedTabName[1], constraintChild, ImmutableList.of(col.getName()), notNullConstraints);
                                break;
                            case HiveParser.TOK_UNIQUE:
                                processUniqueConstraints(qualifiedTabName[0], qualifiedTabName[1], constraintChild, ImmutableList.of(col.getName()), uniqueConstraints);
                                break;
                            case HiveParser.TOK_PRIMARY_KEY:
                                if (!primaryKeys.isEmpty()) {
                                    throw new SemanticException(ErrorMsg.INVALID_CONSTRAINT.getMsg("Cannot exist more than one primary key definition for the same table"));
                                }
                                processPrimaryKeys(qualifiedTabName[0], qualifiedTabName[1], constraintChild, ImmutableList.of(col.getName()), primaryKeys);
                                break;
                            case HiveParser.TOK_FOREIGN_KEY:
                                processForeignKeys(qualifiedTabName[0], qualifiedTabName[1], constraintChild, foreignKeys);
                                break;
                            default:
                                throw new SemanticException(ErrorMsg.NOT_RECOGNIZED_CONSTRAINT.getMsg(constraintChild.getToken().getText()));
                        }
                    }
                }
                colList.add(col);
                break;
        }
    }
    return colList;
}

Example 7 with SQLDefaultConstraint

use of org.apache.hadoop.hive.metastore.api.SQLDefaultConstraint in project hive by apache.

the class DDLSemanticAnalyzer method analyzeAlterTableRenameCol.

private void analyzeAlterTableRenameCol(String[] qualified, ASTNode ast, HashMap<String, String> partSpec) throws SemanticException {
    String newComment = null;
    boolean first = false;
    String flagCol = null;
    boolean isCascade = false;
    // col_old_name col_new_name column_type [COMMENT col_comment] [FIRST|AFTER column_name] [CASCADE|RESTRICT]
    String oldColName = ast.getChild(0).getText();
    String newColName = ast.getChild(1).getText();
    String newType = getTypeStringFromAST((ASTNode) ast.getChild(2));
    ASTNode constraintChild = null;
    int childCount = ast.getChildCount();
    for (int i = 3; i < childCount; i++) {
        ASTNode child = (ASTNode) ast.getChild(i);
        switch(child.getToken().getType()) {
            case HiveParser.StringLiteral:
                newComment = unescapeSQLString(child.getText());
                break;
            case HiveParser.TOK_ALTERTABLE_CHANGECOL_AFTER_POSITION:
                flagCol = unescapeIdentifier(child.getChild(0).getText());
                break;
            case HiveParser.KW_FIRST:
                first = true;
                break;
            case HiveParser.TOK_CASCADE:
                isCascade = true;
                break;
            case HiveParser.TOK_RESTRICT:
                break;
            default:
                constraintChild = (ASTNode) child;
        }
    }
    List<SQLPrimaryKey> primaryKeys = null;
    List<SQLForeignKey> foreignKeys = null;
    List<SQLUniqueConstraint> uniqueConstraints = null;
    List<SQLNotNullConstraint> notNullConstraints = null;
    List<SQLDefaultConstraint> defaultConstraints = null;
    List<SQLCheckConstraint> checkConstraints = null;
    if (constraintChild != null) {
        // Process column constraint
        switch(constraintChild.getToken().getType()) {
            case HiveParser.TOK_CHECK_CONSTRAINT:
                checkConstraints = new ArrayList<>();
                processCheckConstraints(qualified[0], qualified[1], constraintChild, ImmutableList.of(newColName), checkConstraints, (ASTNode) ast.getChild(2), this.ctx.getTokenRewriteStream());
                break;
            case HiveParser.TOK_DEFAULT_VALUE:
                defaultConstraints = new ArrayList<>();
                processDefaultConstraints(qualified[0], qualified[1], constraintChild, ImmutableList.of(newColName), defaultConstraints, (ASTNode) ast.getChild(2));
                break;
            case HiveParser.TOK_NOT_NULL:
                notNullConstraints = new ArrayList<>();
                processNotNullConstraints(qualified[0], qualified[1], constraintChild, ImmutableList.of(newColName), notNullConstraints);
                break;
            case HiveParser.TOK_UNIQUE:
                uniqueConstraints = new ArrayList<>();
                processUniqueConstraints(qualified[0], qualified[1], constraintChild, ImmutableList.of(newColName), uniqueConstraints);
                break;
            case HiveParser.TOK_PRIMARY_KEY:
                primaryKeys = new ArrayList<>();
                processPrimaryKeys(qualified[0], qualified[1], constraintChild, ImmutableList.of(newColName), primaryKeys);
                break;
            case HiveParser.TOK_FOREIGN_KEY:
                foreignKeys = new ArrayList<>();
                processForeignKeys(qualified[0], qualified[1], constraintChild, foreignKeys);
                break;
            default:
                throw new SemanticException(ErrorMsg.NOT_RECOGNIZED_CONSTRAINT.getMsg(constraintChild.getToken().getText()));
        }
    }
    /* Validate the operation of renaming a column name. */
    Table tab = getTable(qualified);
    if (checkConstraints != null && !checkConstraints.isEmpty()) {
        validateCheckConstraint(tab.getCols(), checkConstraints, ctx.getConf());
    }
    if (tab.getTableType() == TableType.EXTERNAL_TABLE && hasEnabledOrValidatedConstraints(notNullConstraints, defaultConstraints, checkConstraints)) {
        throw new SemanticException(ErrorMsg.INVALID_CSTR_SYNTAX.getMsg("Constraints are disallowed with External tables. " + "Only RELY is allowed."));
    }
    SkewedInfo skewInfo = tab.getTTable().getSd().getSkewedInfo();
    if ((null != skewInfo) && (null != skewInfo.getSkewedColNames()) && skewInfo.getSkewedColNames().contains(oldColName)) {
        throw new SemanticException(oldColName + ErrorMsg.ALTER_TABLE_NOT_ALLOWED_RENAME_SKEWED_COLUMN.getMsg());
    }
    String tblName = getDotName(qualified);
    AlterTableDesc alterTblDesc;
    if (primaryKeys == null && foreignKeys == null && uniqueConstraints == null && notNullConstraints == null && defaultConstraints == null && checkConstraints == null) {
        alterTblDesc = new AlterTableDesc(tblName, partSpec, unescapeIdentifier(oldColName), unescapeIdentifier(newColName), newType, newComment, first, flagCol, isCascade);
    } else {
        alterTblDesc = new AlterTableDesc(tblName, partSpec, unescapeIdentifier(oldColName), unescapeIdentifier(newColName), newType, newComment, first, flagCol, isCascade, primaryKeys, foreignKeys, uniqueConstraints, notNullConstraints, defaultConstraints, checkConstraints);
    }
    addInputsOutputsAlterTable(tblName, partSpec, alterTblDesc);
    rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(), alterTblDesc)));
}

Example 8 with SQLDefaultConstraint

use of org.apache.hadoop.hive.metastore.api.SQLDefaultConstraint in project hive by apache.

the class MetaStoreDirectSql method getDefaultConstraints.

public List<SQLDefaultConstraint> getDefaultConstraints(String db_name, String tbl_name) throws MetaException {
    List<SQLDefaultConstraint> ret = new ArrayList<SQLDefaultConstraint>();
    String queryText = "SELECT " + DBS + ".\"NAME\", " + TBLS + ".\"TBL_NAME\"," + "CASE WHEN " + COLUMNS_V2 + ".\"COLUMN_NAME\" IS NOT NULL THEN " + COLUMNS_V2 + ".\"COLUMN_NAME\" " + "ELSE " + PARTITION_KEYS + ".\"PKEY_NAME\" END, " + "" + KEY_CONSTRAINTS + ".\"CONSTRAINT_NAME\", " + KEY_CONSTRAINTS + ".\"ENABLE_VALIDATE_RELY\", " + "" + KEY_CONSTRAINTS + ".\"DEFAULT_VALUE\" " + " from " + TBLS + " " + " INNER JOIN " + KEY_CONSTRAINTS + " ON " + TBLS + ".\"TBL_ID\" = " + KEY_CONSTRAINTS + ".\"PARENT_TBL_ID\" " + " INNER JOIN " + DBS + " ON " + TBLS + ".\"DB_ID\" = " + DBS + ".\"DB_ID\" " + " LEFT OUTER JOIN " + COLUMNS_V2 + " ON " + COLUMNS_V2 + ".\"CD_ID\" = " + KEY_CONSTRAINTS + ".\"PARENT_CD_ID\" AND " + " " + COLUMNS_V2 + ".\"INTEGER_IDX\" = " + KEY_CONSTRAINTS + ".\"PARENT_INTEGER_IDX\" " + " LEFT OUTER JOIN " + PARTITION_KEYS + " ON " + TBLS + ".\"TBL_ID\" = " + PARTITION_KEYS + ".\"TBL_ID\" AND " + " " + PARTITION_KEYS + ".\"INTEGER_IDX\" = " + KEY_CONSTRAINTS + ".\"PARENT_INTEGER_IDX\" " + " WHERE " + KEY_CONSTRAINTS + ".\"CONSTRAINT_TYPE\" = " + MConstraint.DEFAULT_CONSTRAINT + " AND" + (db_name == null ? "" : " " + DBS + ".\"NAME\" = ? AND") + (tbl_name == null ? "" : " " + TBLS + ".\"TBL_NAME\" = ? ");
    queryText = queryText.trim();
    if (queryText.endsWith("AND")) {
        queryText = queryText.substring(0, queryText.length() - 3);
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("getDefaultConstraints: directsql : " + queryText);
    }
    List<String> pms = new ArrayList<String>();
    if (db_name != null) {
        pms.add(db_name);
    }
    if (tbl_name != null) {
        pms.add(tbl_name);
    }
    Query queryParams = pm.newQuery("javax.jdo.query.SQL", queryText);
    List<Object[]> sqlResult = ensureList(executeWithArray(queryParams, pms.toArray(), queryText));
    if (!sqlResult.isEmpty()) {
        for (Object[] line : sqlResult) {
            int enableValidateRely = extractSqlInt(line[4]);
            boolean enable = (enableValidateRely & 4) != 0;
            boolean validate = (enableValidateRely & 2) != 0;
            boolean rely = (enableValidateRely & 1) != 0;
            SQLDefaultConstraint currConstraint = new SQLDefaultConstraint(extractSqlString(line[0]), extractSqlString(line[1]), extractSqlString(line[2]), extractSqlString(line[5]), extractSqlString(line[3]), enable, validate, rely);
            ret.add(currConstraint);
        }
    }
    return ret;
}