mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-10 09:32:06 +00:00
666 lines
21 KiB
Python
Executable File
666 lines
21 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import logging
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from enum import Enum
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from functools import reduce
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from hashlib import md5
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from itertools import chain
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# pylint:disable=import-error; for style check
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import sqlglot
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from sqlglot.expressions import ColumnDef, PrimaryKeyColumnConstraint
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from exceptions import (
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DataResultDiffer,
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Error,
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ErrorWithParent,
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ProgramError,
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QueryExecutionError,
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)
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# pylint:enable=import-error; for style check
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logger = logging.getLogger("parser")
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logger.setLevel(logging.DEBUG)
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CONDITION_SKIP = "skipif"
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CONDITION_ONLY = "onlyif"
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# TODO replace assertions with raise exception
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class TestFileFormatException(Error):
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pass
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class FileAndPos:
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def __init__(self, file=None, pos=None):
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self.file = file
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self.pos = pos
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def __str__(self):
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return f"{self.file}:{self.pos}"
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def check_conditions(conditions, dbms_name):
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rules = {}
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for rec in conditions:
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key, val = rec
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if key not in conditions:
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rules[key] = []
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rules[key].append(val)
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if CONDITION_SKIP in rules:
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if dbms_name in rules[CONDITION_SKIP]:
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return False
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if CONDITION_ONLY in rules:
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if dbms_name not in rules[CONDITION_ONLY]:
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return False
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return True
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class BlockType(Enum):
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comments = 1
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control = 2
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statement = 3
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query = 4
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COMMENT_TOKENS = ["#"]
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RESULT_SEPARATION_LINE = "----"
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CONTROL_TOKENS = ["halt", "hash-threshold"]
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CONDITIONS_TOKENS = [CONDITION_SKIP, CONDITION_ONLY]
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STATEMENT_TOKEN = "statement"
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QUERY_TOKEN = "query"
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ACCEPTABLE_TYPES = {type(""): "T", type(1): "I", type(0.001): "R"}
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def _is_comment_line(tokens):
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return tokens and tokens[0][0] in COMMENT_TOKENS
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def _is_separation_line(tokens):
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return tokens and tokens[0] == RESULT_SEPARATION_LINE
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def _is_control_line(tokens):
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return tokens and tokens[0] in CONTROL_TOKENS
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def _is_conditional_line(tokens):
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return tokens and tokens[0] in CONDITIONS_TOKENS
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def _is_statement_line(tokens):
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return tokens and tokens[0] == STATEMENT_TOKEN
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def _is_query_line(tokens):
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return tokens and tokens[0] == QUERY_TOKEN
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class FileBlockBase:
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def __init__(self, parser, start, end):
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self._parser = parser
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self._start = start
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self._end = end
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def get_block_type(self):
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pass
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def get_pos(self):
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return self._start + 1
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@staticmethod
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def __parse_request(test_file, start, end):
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request_end = start
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while request_end < end:
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tokens = test_file.get_tokens(request_end)
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if not tokens or _is_separation_line(tokens):
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break
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request_end += 1
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request = test_file.get_tokens_from_lines(start, request_end)
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logger.debug("slice request %s:%s end %s", start, request_end, end)
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return " ".join(request), request_end
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@staticmethod
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def __parse_result(test_file, start, end):
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result_end = start
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while result_end < end:
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tokens = test_file.get_tokens(result_end)
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if not tokens:
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break
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result_end += 1
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logger.debug("slice result %s:%s end %s", start, result_end, end)
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result = test_file.get_tokens(start, result_end)
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return result, result_end
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@staticmethod
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def convert_request(sql):
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if sql.startswith("CREATE TABLE"):
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result = sqlglot.transpile(sql, read="sqlite", write="clickhouse")[0]
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pk_token = sqlglot.parse_one(result, read="clickhouse").find(
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PrimaryKeyColumnConstraint
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)
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pk_string = "tuple()"
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if pk_token is not None:
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pk_string = str(pk_token.find_ancestor(ColumnDef).args["this"])
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result += " ENGINE = MergeTree() ORDER BY " + pk_string
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return result
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elif "SELECT" in sql and "CAST" in sql and "NULL" in sql:
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# convert `CAST (NULL as INTEGER)` to `CAST (NULL as Nullable(Int32))`
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try:
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ast = sqlglot.parse_one(sql, read="sqlite")
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except sqlglot.errors.ParseError as err:
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logger.info("cannot parse %s , error is %s", sql, err)
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return sql
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cast = ast.find(sqlglot.expressions.Cast)
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# logger.info("found sql %s && %s && %s", sql, cast.sql(), cast.to.args)
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if (
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cast is not None
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and cast.name == "NULL"
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and ("nested" not in cast.to.args or not cast.to.args["nested"])
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):
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cast.args["to"] = sqlglot.expressions.DataType.build(
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"NULLABLE", expressions=[cast.to]
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)
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new_sql = ast.sql("clickhouse")
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# logger.info("convert from %s to %s", sql, new_sql)
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return new_sql
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return sql
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@staticmethod
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def parse_block(parser, start, end):
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file_pos = FileAndPos(parser.get_test_name(), start + 1)
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logger.debug("%s start %s end %s", file_pos, start, end)
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block_type = BlockType.comments
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conditions = []
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controls = []
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statement = None
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query = None
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request = []
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result_line = None
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result = []
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line = start
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while line < end:
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tokens = parser.get_tokens(line)
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if _is_comment_line(tokens):
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pass
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elif _is_conditional_line(tokens):
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conditions.append(parser.get_tokens(line))
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elif _is_control_line(tokens):
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assert block_type in (BlockType.comments, BlockType.control)
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block_type = BlockType.control
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controls.append(parser.get_tokens(line))
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elif _is_statement_line(tokens):
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assert block_type in (BlockType.comments,)
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block_type = BlockType.statement
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statement = parser.get_tokens(line)
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request, last_line = FileBlockBase.__parse_request(
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parser, line + 1, end
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)
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if parser.dbms_name == "ClickHouse":
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request = FileBlockBase.convert_request(request)
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assert last_line == end
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line = last_line
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elif _is_query_line(tokens):
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assert block_type in (BlockType.comments,)
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block_type = BlockType.query
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query = parser.get_tokens(line)
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request, last_line = FileBlockBase.__parse_request(
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parser, line + 1, end
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)
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if parser.dbms_name == "ClickHouse":
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request = FileBlockBase.convert_request(request)
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result_line = last_line
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line = last_line
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if line == end:
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break
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tokens = parser.get_tokens(line)
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assert _is_separation_line(tokens), f"last_line {last_line}, end {end}"
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result, last_line = FileBlockBase.__parse_result(parser, line + 1, end)
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assert last_line == end
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line = last_line
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line += 1
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if block_type == BlockType.comments:
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return FileBlockComments(parser, start, end)
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if block_type == BlockType.control:
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return FileBlockControl(parser, start, end, conditions, controls)
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if block_type == BlockType.statement:
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return FileBlockStatement(
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parser, start, end, conditions, statement, request
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)
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if block_type == BlockType.query:
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block = FileBlockQuery(
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parser, start, end, conditions, query, request, result_line
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)
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block.with_result(result)
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return block
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raise ValueError(f"Unknown block_type {block_type}")
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def dump_to(self, output):
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if output is None:
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return
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for line in range(self._start, self._end):
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output.write(self._parser.get_line(line))
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output.write("\n")
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class FileBlockComments(FileBlockBase):
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def get_block_type(self):
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return BlockType.comments
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class FileBlockControl(FileBlockBase):
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def __init__(self, parser, start, end, conditions, control):
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super().__init__(parser, start, end)
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self.conditions = conditions
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self.control = control
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def get_block_type(self):
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return BlockType.control
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def get_conditions(self):
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return self.conditions
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class FileBlockStatement(FileBlockBase):
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def __init__(self, parser, start, end, conditions, statement, request):
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super().__init__(parser, start, end)
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self.conditions = conditions
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self.statement = statement
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self.request = request
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def get_block_type(self):
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return BlockType.statement
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def get_request(self):
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return self.request
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def get_conditions(self):
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return self.conditions
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def get_statement(self):
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return self.statement
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def expected_error(self):
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return self.statement[1] == "error"
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class FileBlockQuery(FileBlockBase):
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def __init__(self, parser, start, end, conditions, query, request, result_line):
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super().__init__(parser, start, end)
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self.conditions = conditions
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self.query = query
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self.request = request
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self.result = None
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self.result_line = result_line
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def get_block_type(self):
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return BlockType.query
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def get_request(self):
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return self.request
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def get_conditions(self):
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return self.conditions
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def get_query(self):
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return self.query
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def expected_error(self):
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return " ".join(self.query[2:]).lower() if self.query[1] == "error" else None
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def get_types(self):
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if self.query[1] == "error":
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raise TestFileFormatException(
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"the query is expected to fail, there are no types"
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)
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return self.query[1]
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def get_sort_mode(self):
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return self.query[2]
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def get_result(self):
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return self.result
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def with_result(self, result):
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self.result = result
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def dump_to(self, output):
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if output is None:
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return
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for line in range(self._start, self.result_line):
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output.write(self._parser.get_line(line))
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if self.result is not None:
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logger.debug("dump result %s", self.result)
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output.write("----\n")
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for row in self.result:
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output.write(" ".join(row) + "\n")
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output.write("\n")
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class TestFileParser:
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CONTROL_TOKENS = ["halt", "hash-threshold"]
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CONDITIONS_TOKENS = [CONDITION_SKIP, CONDITION_ONLY]
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STATEMENT_TOKEN = "statement"
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QUERY_TOKEN = "query"
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COMMENT_TOKEN = "#"
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DEFAULT_HASH_THRESHOLD = 8
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def __init__(self, stream, test_name, test_file, dbms_name):
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self._stream = stream
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self._test_name = test_name
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self._test_file = test_file
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self.dbms_name = dbms_name
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self._lines = []
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self._raw_tokens = []
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self._tokens = []
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self._empty_lines = []
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def get_test_name(self):
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return self._test_name
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def get_test_file(self):
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if self._test_file is not None:
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return self._test_file
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return self._test_name
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def get_line(self, line):
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return self._lines[line]
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def get_tokens(self, start, end=None):
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if end is None:
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return self._tokens[start]
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else:
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return self._tokens[start:end]
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def get_tokens_from_lines(self, start, end):
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return list(chain(*self._tokens[start:end]))
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def __load_file(self):
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self._lines = self._stream.readlines()
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self._raw_tokens = [line.split() for line in self._lines]
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assert len(self._lines) == len(self._raw_tokens)
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self._tokens = []
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for line in self._raw_tokens:
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if self.COMMENT_TOKEN in line:
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comment_starts_at = line.index(self.COMMENT_TOKEN)
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self._tokens.append(line[0:comment_starts_at])
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else:
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self._tokens.append(line)
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self._empty_lines = [i for i, x in enumerate(self._raw_tokens) if len(x) == 0]
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logger.debug(
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"Test file %s loaded rows %s, empty rows %s",
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self.get_test_file(),
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len(self._lines),
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len(self._empty_lines),
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)
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def __unload_file(self):
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self._test_file = None
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self._test_name = None
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self._stream = None
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self._lines = []
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self._raw_tokens = []
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self._tokens = []
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self._empty_lines = []
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def _iterate_blocks(self):
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prev = 0
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for i in self._empty_lines:
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if prev != i:
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yield FileBlockBase.parse_block(self, prev, i)
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prev = i + 1
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if prev != len(self._lines):
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yield FileBlockBase.parse_block(self, prev, len(self._lines))
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def test_blocks(self):
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try:
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self.__load_file()
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yield from self._iterate_blocks()
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finally:
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self.__unload_file()
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class QueryResult:
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def __init__(
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self,
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rows=None,
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values_count=None,
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data_hash=None,
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exception=None,
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hash_threshold=0,
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):
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self.rows = rows
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self.values_count = values_count
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self.data_hash = data_hash
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self.exception = exception
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self.hash_threshold = hash_threshold
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self.hash_it()
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logger.debug("created QueryResult %s", str(self))
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def __str__(self):
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params = ", ".join(
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(
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str(x)
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for x in [
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f"rows: {self.rows}" if self.rows else "",
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f"values_count: {self.values_count}" if self.values_count else "",
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f"data_hash: {self.data_hash}" if self.data_hash else "",
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f"exception: {self.exception}" if self.exception else "",
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(
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f"hash_threshold: {self.hash_threshold}"
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if self.hash_threshold
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else ""
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),
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]
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if x
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)
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)
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return f"QueryResult({params})"
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def __iter__(self):
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if self.rows is not None:
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if self.hash_threshold == 0:
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return iter(self.rows)
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if self.values_count <= self.hash_threshold:
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return iter(self.rows)
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if self.data_hash is not None:
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return iter([[f"{self.values_count} values hashing to {self.data_hash}"]])
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if self.exception is not None:
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return iter([[f"exception: {self.exception}"]])
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raise ProgramError("Query result is empty", details=str(self))
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@staticmethod
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def __value_count(rows):
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return reduce(lambda a, b: a + len(b), rows, 0)
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@staticmethod
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def parse_it(rows, hash_threshold):
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logger.debug("parse result len: %s rows: %s", len(rows), rows)
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if len(rows) == 1:
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logger.debug("one row is %s", rows)
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if len(rows[0]) > 0 and rows[0][0] == "exception:":
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logging.debug("as exception")
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message = " ".join(rows[0][1:])
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return QueryResult(exception=message)
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if len(rows[0]) == 5 and " ".join(rows[0][1:4]) == "values hashing to":
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logging.debug("as hashed data")
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values_count = int(rows[0][0])
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data_hash = rows[0][4]
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return QueryResult(data_hash=data_hash, values_count=values_count)
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logger.debug("as data")
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values_count = QueryResult.__value_count(rows)
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return QueryResult(
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rows=rows, values_count=values_count, hash_threshold=hash_threshold
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)
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@staticmethod
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def __result_as_strings(rows, types):
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res = []
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for row in rows:
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res_row = []
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for c, t in zip(row, types):
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logger.debug("Building row. c:%s t:%s", c, t)
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if c is None:
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res_row.append("NULL")
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continue
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if t == "T":
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if c == "":
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res_row.append("(empty)")
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else:
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res_row.append(str(c))
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elif t == "I":
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try:
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res_row.append(str(int(c)))
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except ValueError:
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# raise QueryExecutionError(
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# f"Got non-integer result '{c}' for I type."
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# )
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res_row.append(str(int(0)))
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except OverflowError as ex:
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raise QueryExecutionError(
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f"Got overflowed result '{c}' for I type."
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) from ex
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elif t == "R":
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res_row.append(f"{c:.3f}")
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res.append(res_row)
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return res
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@staticmethod
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def __sort_result(rows, sort_mode):
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if sort_mode == "nosort":
|
|
return rows
|
|
if sort_mode == "rowsort":
|
|
return sorted(rows)
|
|
if sort_mode == "valuesort":
|
|
values = list(chain(*rows))
|
|
values.sort()
|
|
return [values] if values else []
|
|
return []
|
|
|
|
@staticmethod
|
|
def __calculate_hash(rows):
|
|
md5_hash = md5()
|
|
for row in rows:
|
|
for value in row:
|
|
md5_hash.update(value.encode("ascii"))
|
|
return str(md5_hash.hexdigest())
|
|
|
|
@staticmethod
|
|
def make_it(rows, types, sort_mode, hash_threshold):
|
|
values_count = QueryResult.__value_count(rows)
|
|
as_string = QueryResult.__result_as_strings(rows, types)
|
|
as_sorted = QueryResult.__sort_result(as_string, sort_mode)
|
|
return QueryResult(
|
|
rows=as_sorted, values_count=values_count, hash_threshold=hash_threshold
|
|
)
|
|
|
|
def hash_it(self):
|
|
if self.rows is not None and self.data_hash is None:
|
|
self.data_hash = QueryResult.__calculate_hash(self.rows)
|
|
return self
|
|
|
|
@staticmethod
|
|
def as_exception(e):
|
|
# do not print details to the test file
|
|
# but print original exception
|
|
if isinstance(e, ErrorWithParent):
|
|
message = f"{e}, original is: {e.get_parent()}"
|
|
else:
|
|
message = str(e)
|
|
|
|
return QueryResult(exception=message)
|
|
|
|
@staticmethod
|
|
def assert_eq(canonic, actual):
|
|
if not isinstance(canonic, QueryResult):
|
|
raise ProgramError("NotImplemented")
|
|
|
|
if not isinstance(actual, QueryResult):
|
|
raise ProgramError("NotImplemented")
|
|
|
|
if canonic.exception is not None or actual.exception is not None:
|
|
if canonic.exception is not None and actual.exception is not None:
|
|
if canonic.exception != actual.exception:
|
|
raise DataResultDiffer(
|
|
"canonic and actual results have different exceptions",
|
|
details=f"canonic: {canonic.exception}, actual: {actual.exception}",
|
|
)
|
|
# exceptions are the same
|
|
return
|
|
elif canonic.exception is not None:
|
|
raise DataResultDiffer(
|
|
"canonic result has exception and actual result doesn't",
|
|
details=f"canonic: {canonic.exception}",
|
|
)
|
|
else:
|
|
raise DataResultDiffer(
|
|
"actual result has exception and canonic result doesn't",
|
|
details=f"actual: {actual.exception}",
|
|
)
|
|
|
|
canonic.hash_it()
|
|
actual.hash_it()
|
|
|
|
if canonic.data_hash is not None:
|
|
if actual.data_hash is None:
|
|
raise ProgramError("actual result has to have hash for data")
|
|
if canonic.values_count != actual.values_count:
|
|
raise DataResultDiffer(
|
|
"canonic and actual results have different value count",
|
|
details=f"canonic values count {canonic.values_count}, "
|
|
f"actual {actual.values_count}",
|
|
)
|
|
if canonic.data_hash != actual.data_hash:
|
|
raise DataResultDiffer(
|
|
"canonic and actual results have different hashes"
|
|
)
|
|
return
|
|
|
|
if canonic.rows is not None and actual.rows is not None:
|
|
if canonic.values_count != actual.values_count:
|
|
raise DataResultDiffer(
|
|
"canonic and actual results have different value count",
|
|
details=f"canonic values count {canonic.values_count}, "
|
|
f"actual {actual.values_count}",
|
|
)
|
|
if canonic.rows != actual.rows:
|
|
raise DataResultDiffer(
|
|
"canonic and actual results have different values"
|
|
)
|
|
return
|
|
|
|
raise ProgramError(
|
|
"Unable to compare results",
|
|
details=f"actual {actual}, canonic {canonic}",
|
|
)
|