Refactor s3select to support parquet. (#7023)

Also handle pretty formatted JSON documents.

pkg/s3select/sql/errors.go

@@ -0,0 +1,215 @@
+/*
+ * Minio Cloud Storage, (C) 2019 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sql
+
+type s3Error struct {
+	code       string
+	message    string
+	statusCode int
+	cause      error
+}
+
+func (err *s3Error) Cause() error {
+	return err.cause
+}
+
+func (err *s3Error) ErrorCode() string {
+	return err.code
+}
+
+func (err *s3Error) ErrorMessage() string {
+	return err.message
+}
+
+func (err *s3Error) HTTPStatusCode() int {
+	return err.statusCode
+}
+
+func (err *s3Error) Error() string {
+	return err.message
+}
+
+func errUnsupportedSQLStructure(err error) *s3Error {
+	return &s3Error{
+		code:       "UnsupportedSqlStructure",
+		message:    "Encountered an unsupported SQL structure. Check the SQL Reference.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errParseUnsupportedSelect(err error) *s3Error {
+	return &s3Error{
+		code:       "ParseUnsupportedSelect",
+		message:    "The SQL expression contains an unsupported use of SELECT.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errParseAsteriskIsNotAloneInSelectList(err error) *s3Error {
+	return &s3Error{
+		code:       "ParseAsteriskIsNotAloneInSelectList",
+		message:    "Other expressions are not allowed in the SELECT list when '*' is used without dot notation in the SQL expression.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errParseInvalidContextForWildcardInSelectList(err error) *s3Error {
+	return &s3Error{
+		code:       "ParseInvalidContextForWildcardInSelectList",
+		message:    "Invalid use of * in SELECT list in the SQL expression.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errInvalidDataType(err error) *s3Error {
+	return &s3Error{
+		code:       "InvalidDataType",
+		message:    "The SQL expression contains an invalid data type.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errUnsupportedFunction(err error) *s3Error {
+	return &s3Error{
+		code:       "UnsupportedFunction",
+		message:    "Encountered an unsupported SQL function.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errParseNonUnaryAgregateFunctionCall(err error) *s3Error {
+	return &s3Error{
+		code:       "ParseNonUnaryAgregateFunctionCall",
+		message:    "Only one argument is supported for aggregate functions in the SQL expression.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errIncorrectSQLFunctionArgumentType(err error) *s3Error {
+	return &s3Error{
+		code:       "IncorrectSqlFunctionArgumentType",
+		message:    "Incorrect type of arguments in function call in the SQL expression.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errEvaluatorInvalidArguments(err error) *s3Error {
+	return &s3Error{
+		code:       "EvaluatorInvalidArguments",
+		message:    "Incorrect number of arguments in the function call in the SQL expression.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errUnsupportedSQLOperation(err error) *s3Error {
+	return &s3Error{
+		code:       "UnsupportedSqlOperation",
+		message:    "Encountered an unsupported SQL operation.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errParseUnknownOperator(err error) *s3Error {
+	return &s3Error{
+		code:       "ParseUnknownOperator",
+		message:    "The SQL expression contains an invalid operator.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errLikeInvalidInputs(err error) *s3Error {
+	return &s3Error{
+		code:       "LikeInvalidInputs",
+		message:    "Invalid argument given to the LIKE clause in the SQL expression.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errExternalEvalException(err error) *s3Error {
+	return &s3Error{
+		code:       "ExternalEvalException",
+		message:    "The query cannot be evaluated. Check the file and try again.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errValueParseFailure(err error) *s3Error {
+	return &s3Error{
+		code:       "ValueParseFailure",
+		message:    "Time stamp parse failure in the SQL expression.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errEvaluatorBindingDoesNotExist(err error) *s3Error {
+	return &s3Error{
+		code:       "EvaluatorBindingDoesNotExist",
+		message:    "A column name or a path provided does not exist in the SQL expression.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errInternalError(err error) *s3Error {
+	return &s3Error{
+		code:       "InternalError",
+		message:    "Encountered an internal error.",
+		statusCode: 500,
+		cause:      err,
+	}
+}
+
+func errParseInvalidTypeParam(err error) *s3Error {
+	return &s3Error{
+		code:       "ParseInvalidTypeParam",
+		message:    "The SQL expression contains an invalid parameter value.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errParseUnsupportedSyntax(err error) *s3Error {
+	return &s3Error{
+		code:       "ParseUnsupportedSyntax",
+		message:    "The SQL expression contains unsupported syntax.",
+		statusCode: 400,
+		cause:      err,
+	}
+}
+
+func errInvalidKeyPath(err error) *s3Error {
+	return &s3Error{
+		code:       "InvalidKeyPath",
+		message:    "Key path in the SQL expression is invalid.",
+		statusCode: 400,
+		cause:      err,
+	}
+}